/* roulang page: index */
:root {
    --primary: #FF4F1F;
    --primary-hover: #E0430F;
    --primary-active: #C93A0C;
    --dark: #17191D;
    --dark-soft: #23262B;
    --text-main: #1F2329;
    --text-sub: #4B5563;
    --text-muted: #9CA3AF;
    --bg: #F6F4F1;
    --card-bg: #FFFFFF;
    --border: #E5E7EB;
    --success: #10B981;
    --danger: #DC2626;
    --radius-card: 12px;
    --radius-btn: 999px;
    --radius-input: 10px;
    --radius-tag: 6px;
    --shadow-card: 0 1px 2px rgba(0, 0, 0, 0.04), 0 2px 8px rgba(0, 0, 0, 0.03);
    --shadow-card-hover: 0 8px 24px rgba(0, 0, 0, 0.08);
    --shadow-nav: 0 2px 12px rgba(23, 25, 29, 0.05);
    --shadow-primary: 0 6px 16px rgba(255, 79, 31, 0.25);
}
*,
*::before,
*::after {
    box-sizing: border-box;
}
html {
    scroll-behavior: smooth;
}
body {
    font-family: "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
    background: var(--bg);
    color: var(--text-main);
    line-height: 1.7;
    margin: 0;
    -webkit-font-smoothing: antialiased;
}
a {
    color: inherit;
    text-decoration: none;
    transition: color 0.2s ease;
}
a:hover {
    color: var(--primary);
}
img {
    max-width: 100%;
    height: auto;
    display: block;
}
button,
input {
    font-family: inherit;
}
.container {
    max-width: 1200px;
    padding-left: 20px;
    padding-right: 20px;
}
.section {
    padding: 80px 0;
}
.section-head {
    margin-bottom: 40px;
    text-align: center;
}
.section-head h2 {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 8px;
    letter-spacing: -0.02em;
}
.section-head p {
    color: var(--text-sub);
    font-size: 15px;
    margin-bottom: 0;
}
@media (max-width: 768px) {
    .section {
        padding: 48px 0;
    }
    .section-head h2 {
        font-size: 22px;
    }
}
/* ===== Buttons ===== */
.btn {
    border-radius: var(--radius-btn);
    font-weight: 600;
    padding: 10px 24px;
    transition: all 0.25s ease;
    font-size: 15px;
    border: 2px solid transparent;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}
.btn:focus,
.btn:focus-visible {
    outline: none;
    box-shadow: 0 0 0 3px rgba(255, 79, 31, 0.35);
    border-color: var(--primary);
}
.btn-primary {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
    box-shadow: var(--shadow-primary);
}
.btn-primary:hover {
    background: var(--primary-hover);
    border-color: var(--primary-hover);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(255, 79, 31, 0.3);
}
.btn-primary:active {
    background: var(--primary-active);
    border-color: var(--primary-active);
    transform: translateY(0);
}
.btn-outline-light {
    background: transparent;
    color: #fff;
    border-color: rgba(255, 255, 255, 0.7);
}
.btn-outline-light:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: #fff;
    color: #fff;
    transform: translateY(-2px);
}
.btn-outline-primary {
    background: transparent;
    color: var(--primary);
    border-color: var(--primary);
}
.btn-outline-primary:hover {
    background: var(--primary);
    color: #fff;
    transform: translateY(-2px);
}
.btn-lg {
    padding: 14px 36px;
    font-size: 16px;
}
.btn-sm {
    padding: 7px 18px;
    font-size: 14px;
}
.btn-reserve.active {
    background: var(--success);
    border-color: var(--success);
    color: #fff;
}
/* ===== Header / Nav ===== */
.site-header {
    background: #fff;
    height: 64px;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow-nav);
    border-bottom: 1px solid rgba(0, 0, 0, 0.04);
}
.site-header .navbar {
    height: 64px;
    padding: 0;
}
.navbar-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 0;
    margin-right: 24px;
}
.brand-icon {
    width: 38px;
    height: 38px;
    border-radius: 10px;
    background: var(--primary);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    position: relative;
    flex-shrink: 0;
    box-shadow: 0 4px 12px rgba(255, 79, 31, 0.3);
}
.brand-letter {
    color: #fff;
    font-size: 20px;
    font-weight: 800;
    line-height: 1;
    margin-right: -2px;
}
.brand-play {
    position: absolute;
    bottom: -3px;
    right: -3px;
    background: #fff;
    color: var(--primary);
    border-radius: 50%;
    font-size: 9px;
    width: 15px;
    height: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding-left: 2px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}
.brand-text {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-main);
    letter-spacing: -0.01em;
    white-space: nowrap;
}
.navbar-nav {
    gap: 2px;
}
.navbar-nav .nav-link {
    color: var(--text-sub);
    font-weight: 500;
    font-size: 15px;
    padding: 8px 16px;
    border-radius: 8px;
    position: relative;
    transition: color 0.2s ease, background 0.2s ease;
}
.navbar-nav .nav-link:hover {
    color: var(--primary);
    background: rgba(255, 79, 31, 0.05);
}
.navbar-nav .nav-link.active {
    color: var(--primary);
    font-weight: 700;
    background: rgba(255, 79, 31, 0.06);
}
.nav-right {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-left: auto;
}
.search-box {
    display: flex;
    align-items: center;
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 7px 14px;
    gap: 8px;
    width: 200px;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.search-box:focus-within {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(255, 79, 31, 0.12);
    background: #fff;
}
.search-box i {
    color: var(--text-muted);
    font-size: 14px;
}
.search-box input {
    border: none;
    background: transparent;
    outline: none;
    font-size: 14px;
    color: var(--text-main);
    width: 100%;
}
.search-box input::placeholder {
    color: var(--text-muted);
}
.navbar-toggler {
    border: none;
    padding: 6px;
    background: transparent;
}
.navbar-toggler:focus {
    box-shadow: none;
}
.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(31,35,41,0.7)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}
@media (max-width: 991.98px) {
    .site-header {
        height: 60px;
    }
    .site-header .navbar {
        height: 60px;
    }
    .navbar-collapse {
        background: #fff;
        box-shadow: 0 12px 20px rgba(0, 0, 0, 0.08);
        border-radius: 0 0 16px 16px;
        padding: 16px 20px;
        position: absolute;
        top: 60px;
        left: 0;
        right: 0;
        z-index: 999;
    }
    .navbar-nav {
        flex-direction: column;
        margin-bottom: 12px;
    }
    .navbar-nav .nav-link {
        padding: 10px 12px;
        border-radius: 10px;
    }
    .nav-right {
        flex-direction: row;
        gap: 10px;
        width: 100%;
    }
    .search-box {
        flex: 1;
        width: auto;
    }
}
/* ===== Hero ===== */
.hero {
    position: relative;
    background: var(--dark);
    min-height: 86vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    padding: 80px 0 64px;
}
.hero-bg {
    position: absolute;
    inset: 0;
    background-image: url('/assets/images/backpic/back-1.webp');
    background-size: cover;
    background-position: center;
    opacity: 0.45;
}
.hero-bg::after {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(to right, rgba(23, 25, 29, 0.97) 0%, rgba(23, 25, 29, 0.85) 45%, rgba(23, 25, 29, 0.5) 100%);
}
.hero-content {
    position: relative;
    z-index: 2;
    max-width: 680px;
    color: #fff;
}
.hero-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--radius-btn);
    padding: 6px 14px;
    font-size: 13px;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 20px;
    backdrop-filter: blur(4px);
}
.live-dot {
    width: 7px;
    height: 7px;
    background: var(--primary);
    border-radius: 50%;
    display: inline-block;
    position: relative;
}
.live-dot::after {
    content: '';
    position: absolute;
    inset: -3px;
    background: rgba(255, 79, 31, 0.4);
    border-radius: 50%;
    animation: pulse 1.5s infinite;
}
@keyframes pulse {
    0% {
        transform: scale(1);
        opacity: 0.7;
    }
    70% {
        transform: scale(1.8);
        opacity: 0;
    }
    100% {
        opacity: 0;
    }
}
.hero h1 {
    font-size: clamp(28px, 4vw, 44px);
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 16px;
    letter-spacing: -0.02em;
}
.hero-subtitle {
    font-size: 17px;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.85);
    margin-bottom: 32px;
    max-width: 540px;
}
.countdown-section {
    display: flex;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 32px;
}
.countdown-label {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.7);
    background: rgba(255, 255, 255, 0.1);
    padding: 5px 12px;
    border-radius: var(--radius-tag);
    font-weight: 500;
}
.countdown {
    display: flex;
    align-items: center;
    gap: 8px;
}
.countdown-item {
    background: rgba(0, 0, 0, 0.55);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    padding: 10px 14px;
    min-width: 64px;
    text-align: center;
    backdrop-filter: blur(4px);
}
.countdown-item .num {
    font-size: 30px;
    font-weight: 800;
    color: var(--primary);
    font-variant-numeric: tabular-nums;
    line-height: 1.1;
    display: block;
}
.countdown-item .unit {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.65);
    display: block;
    margin-top: 2px;
}
.countdown .sep {
    color: rgba(255, 255, 255, 0.5);
    font-size: 24px;
    font-weight: 700;
    margin: 0 -2px;
}
.hero-actions {
    display: flex;
    gap: 14px;
    flex-wrap: wrap;
}
.hero-decoration {
    position: absolute;
    right: 6%;
    bottom: 12%;
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: rgba(255, 79, 31, 0.15);
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(255, 79, 31, 0.3);
    z-index: 2;
    backdrop-filter: blur(8px);
    animation: float 4s ease-in-out infinite;
}
.hero-decoration i {
    font-size: 48px;
    color: rgba(255, 79, 31, 0.6);
    margin-left: 4px;
}
@keyframes float {
    0%,
    100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-16px);
    }
}
@media (max-width: 768px) {
    .hero {
        min-height: auto;
        padding: 60px 0 48px;
    }
    .hero-bg::after {
        background: linear-gradient(to bottom, rgba(23, 25, 29, 0.9) 0%, rgba(23, 25, 29, 0.75) 100%);
    }
    .countdown-item {
        min-width: 56px;
        padding: 8px 10px;
    }
    .countdown-item .num {
        font-size: 24px;
    }
    .hero-actions .btn {
        flex: 1;
        min-width: 140px;
    }
    .hero-decoration {
        display: none;
    }
}
/* ===== Highlights ===== */
.highlights {
    background: var(--bg);
}
.highlights-list {
    max-width: 760px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.highlight-item {
    display: flex;
    gap: 20px;
    background: var(--card-bg);
    border-radius: var(--radius-card);
    padding: 24px;
    box-shadow: var(--shadow-card);
    border: 1px solid var(--border);
    transition: box-shadow 0.3s ease, transform 0.3s ease;
    border-left: 4px solid var(--primary);
}
.highlight-item:hover {
    box-shadow: var(--shadow-card-hover);
    transform: translateY(-4px);
}
.highlight-num {
    font-size: 26px;
    font-weight: 800;
    color: var(--primary);
    line-height: 1;
    min-width: 36px;
    font-variant-numeric: tabular-nums;
    opacity: 0.8;
}
.highlight-body h3 {
    font-size: 18px;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 6px;
}
.highlight-body p {
    font-size: 14px;
    color: var(--text-sub);
    margin-bottom: 0;
    line-height: 1.7;
}
@media (max-width: 576px) {
    .highlight-item {
        padding: 18px;
        gap: 14px;
    }
    .highlight-num {
        font-size: 20px;
        min-width: 28px;
    }
}
/* ===== Subscribe ===== */
.subscribe-section {
    background: var(--dark);
    position: relative;
    overflow: hidden;
}
.subscribe-section::before {
    content: '';
    position: absolute;
    top: -60%;
    left: -20%;
    width: 50%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 79, 31, 0.12) 0%, transparent 60%);
    pointer-events: none;
}
.subscribe-card {
    position: relative;
    z-index: 1;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 20px;
    padding: 48px;
    backdrop-filter: blur(8px);
}
.subscribe-card h2 {
    font-size: 26px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 10px;
}
.subscribe-card .lead-text {
    color: rgba(255, 255, 255, 0.7);
    font-size: 15px;
    margin-bottom: 0;
}
.subscribe-form {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}
.subscribe-form input {
    flex: 1;
    min-width: 240px;
    height: 48px;
    border-radius: var(--radius-input);
    border: 1px solid rgba(255, 255, 255, 0.2);
    background: rgba(255, 255, 255, 0.08);
    padding: 0 18px;
    color: #fff;
    font-size: 15px;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.subscribe-form input::placeholder {
    color: rgba(255, 255, 255, 0.45);
}
.subscribe-form input:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(255, 79, 31, 0.2);
    background: rgba(255, 255, 255, 0.12);
}
.subscribe-form .btn {
    height: 48px;
}
.privacy-note {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.4);
    margin-top: 12px;
    margin-bottom: 0;
}
@media (max-width: 768px) {
    .subscribe-card {
        padding: 28px 20px;
    }
    .subscribe-form {
        flex-direction: column;
    }
    .subscribe-form input,
    .subscribe-form .btn {
        width: 100%;
    }
}
/* ===== News / CMS List ===== */
.news-section {
    background: var(--bg);
}
.news-list {
    max-width: 860px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 16px;
}
.news-item {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-card);
    padding: 24px;
    box-shadow: var(--shadow-card);
    transition: box-shadow 0.3s ease, transform 0.3s ease;
    display: block;
}
.news-item:hover {
    box-shadow: var(--shadow-card-hover);
    transform: translateY(-4px);
}
.news-item-top {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 10px;
}
.news-tag {
    background: rgba(255, 79, 31, 0.1);
    color: var(--primary);
    font-size: 12px;
    font-weight: 600;
    padding: 3px 10px;
    border-radius: var(--radius-tag);
}
.news-date {
    font-size: 13px;
    color: var(--text-muted);
}
.news-item-title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 8px;
    line-height: 1.4;
}
.news-item-title a {
    color: var(--text-main);
}
.news-item-title a:hover {
    color: var(--primary);
}
.news-item-excerpt {
    font-size: 14px;
    color: var(--text-sub);
    line-height: 1.7;
    margin-bottom: 14px;
}
.news-item-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.news-more {
    font-size: 14px;
    color: var(--primary);
    font-weight: 500;
    transition: gap 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}
.news-more:hover {
    gap: 8px;
    color: var(--primary-hover);
}
.news-empty {
    border: 2px dashed var(--border);
    border-radius: var(--radius-card);
    padding: 60px 20px;
    text-align: center;
    color: var(--text-muted);
    background: var(--card-bg);
}
.news-empty .empty-icon {
    font-size: 42px;
    margin-bottom: 12px;
    color: var(--text-muted);
    opacity: 0.5;
}
.news-empty p {
    font-size: 15px;
    margin-bottom: 0;
}
/* ===== Replay ===== */
.replay-section {
    background: #fff;
}
.replay-card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius-card);
    overflow: hidden;
    box-shadow: var(--shadow-card);
    transition: box-shadow 0.3s ease, transform 0.3s ease;
    display: flex;
    flex-direction: column;
    height: 100%;
}
.replay-card:hover {
    box-shadow: var(--shadow-card-hover);
    transform: translateY(-4px);
}
.replay-cover {
    position: relative;
    aspect-ratio: 16 / 9;
    overflow: hidden;
}
.replay-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.3s ease;
}
.replay-card:hover .replay-cover img {
    transform: scale(1.03);
}
.duration-badge {
    position: absolute;
    top: 12px;
    right: 12px;
    background: rgba(0, 0, 0, 0.7);
    color: #fff;
    font-size: 12px;
    padding: 4px 10px;
    border-radius: var(--radius-tag);
    font-variant-numeric: tabular-nums;
    backdrop-filter: blur(4px);
}
.replay-info {
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    flex: 1;
}
.channel-name {
    font-size: 13px;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 6px;
}
.channel-name i {
    font-size: 8px;
    color: var(--primary);
}
.replay-info h3 {
    font-size: 17px;
    font-weight: 700;
    color: var(--text-main);
    margin-bottom: 0;
    line-height: 1.4;
    flex: 1;
}
.replay-info .btn {
    align-self: flex-start;
    margin-top: 8px;
}
/* ===== FAQ ===== */
.faq-section {
    background: var(--bg);
}
.faq-section .accordion {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}
.faq-section .accordion-item {
    border: 1px solid var(--border);
    border-radius: var(--radius-card) !important;
    background: var(--card-bg);
    box-shadow: var(--shadow-card);
    overflow: hidden;
}
.faq-section .accordion-button {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-main);
    padding: 20px 24px;
    background: var(--card-bg);
    box-shadow: none;
    border-radius: 0;
    transition: color 0.2s ease;
}
.faq-section .accordion-button:hover {
    color: var(--primary);
}
.faq-section .accordion-button:not(.collapsed) {
    color: var(--primary);
    background: var(--card-bg);
    box-shadow: none;
}
.faq-section .accordion-button:focus {
    box-shadow: 0 0 0 3px rgba(255, 79, 31, 0.15);
    border-radius: var(--radius-card);
}
.faq-section .accordion-button::after {
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%234B5563'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
    transition: transform 0.3s ease;
    width: 16px;
    height: 16px;
    background-size: contain;
}
.faq-section .accordion-button:not(.collapsed)::after {
    transform: rotate(180deg);
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23FF4F1F'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
}
.faq-section .accordion-body {
    padding: 0 24px 20px;
    color: var(--text-sub);
    font-size: 14px;
    line-height: 1.75;
}
/* ===== CTA ===== */
.cta-section {
    background: var(--dark);
    padding: 64px 0;
    position: relative;
    overflow: hidden;
}
.cta-section::before {
    content: '';
    position: absolute;
    right: -10%;
    top: -50%;
    width: 40%;
    height: 200%;
    background: radial-gradient(circle, rgba(255, 79, 31, 0.15) 0%, transparent 60%);
    pointer-events: none;
}
.cta-inner {
    position: relative;
    z-index: 1;
    text-align: center;
    color: #fff;
}
.cta-inner h2 {
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 12px;
}
.cta-inner p {
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: 24px;
    max-width: 480px;
    margin-left: auto;
    margin-right: auto;
}
/* ===== Footer ===== */
.site-footer {
    background: var(--dark);
    color: #CBD5E1;
    padding: 72px 0 0;
    position: relative;
}
.site-footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(to right, transparent, rgba(255, 79, 31, 0.4), transparent);
}
.footer-title {
    font-size: 16px;
    font-weight: 600;
    color: #fff;
    margin-bottom: 18px;
}
.footer-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 16px;
}
.footer-brand .brand-icon {
    width: 32px;
    height: 32px;
    border-radius: 8px;
}
.footer-brand .brand-icon .brand-letter {
    font-size: 17px;
}
.footer-brand .brand-icon .brand-play {
    font-size: 8px;
    width: 13px;
    height: 13px;
}
.footer-brand-text {
    font-size: 18px;
    font-weight: 700;
    color: #fff;
}
.footer-desc {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.55);
    line-height: 1.7;
    margin-bottom: 0;
    max-width: 260px;
}
.footer-links {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.footer-links a {
    color: #CBD5E1;
    font-size: 14px;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: color 0.2s ease, transform 0.2s ease;
}
.footer-links a:hover {
    color: #fff;
    transform: translateX(3px);
}
.footer-links a i {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.35);
}
.footer-contact {
    list-style: none;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.footer-contact li {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    display: flex;
    align-items: center;
    gap: 8px;
}
.footer-contact i {
    color: var(--primary);
}
.footer-bottom {
    margin-top: 56px;
    padding: 20px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    text-align: center;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.4);
}
.footer-bottom a {
    color: rgba(255, 255, 255, 0.55);
}
.footer-bottom a:hover {
    color: var(--primary);
}
@media (max-width: 768px) {
    .site-footer {
        padding: 48px 0 0;
    }
    .footer-bottom {
        margin-top: 32px;
    }
}

/* roulang page: category1 */
/* ===== 设计变量 ===== */
        :root {
            --primary: #FF4F1F;
            --primary-hover: #E0430F;
            --primary-active: #C93A0C;
            --dark: #17191D;
            --text-main: #1F2329;
            --text-sub: #4B5563;
            --text-muted: #9CA3AF;
            --bg-warm: #F6F4F1;
            --card-bg: #FFFFFF;
            --border: #E5E7EB;
            --success: #10B981;
            --danger: #DC2626;
            --radius-card: 12px;
            --radius-btn: 999px;
            --radius-input: 10px;
            --radius-tag: 6px;
            --shadow-card: 0 1px 2px rgba(0, 0, 0, 0.04), 0 2px 8px rgba(0, 0, 0, 0.03);
            --shadow-card-hover: 0 8px 24px rgba(0, 0, 0, 0.08);
            --shadow-nav: 0 2px 12px rgba(23, 25, 29, 0.05);
            --shadow-primary: 0 6px 16px rgba(255, 79, 31, 0.25);
            --font-family: "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
        }

        /* ===== 基础重置 ===== */
        * {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: var(--font-family);
            background-color: var(--bg-warm);
            color: var(--text-main);
            line-height: 1.7;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
        }
        a {
            text-decoration: none;
            color: inherit;
            transition: color .2s ease;
        }
        img {
            max-width: 100%;
            display: block;
        }
        button,
        input,
        textarea {
            font-family: inherit;
        }
        .container {
            max-width: 1200px;
        }

        /* ===== 通用板块 ===== */
        .section {
            padding: 80px 0;
        }
        .section-header {
            margin-bottom: 40px;
        }
        .section-title {
            font-size: 28px;
            font-weight: 700;
            line-height: 1.3;
            margin: 0 0 12px;
            color: var(--text-main);
        }
        .section-subtitle {
            color: var(--text-sub);
            font-size: 15px;
            max-width: 680px;
            margin: 0;
        }
        .section-title-center,
        .section-subtitle-center {
            text-align: center;
        }
        .section-subtitle-center {
            margin-left: auto;
            margin-right: auto;
        }
        .primary-text {
            color: var(--primary);
        }

        /* ===== Header / 导航 ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 1000;
            background: #fff;
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-nav);
        }
        .navbar {
            min-height: 64px;
            padding: 0;
        }
        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .brand-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: var(--primary);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            position: relative;
            flex-shrink: 0;
        }
        .brand-letter {
            color: #fff;
            font-weight: 800;
            font-size: 18px;
            position: relative;
            z-index: 2;
            margin-left: 2px;
            line-height: 1;
        }
        .brand-play {
            position: absolute;
            right: 3px;
            bottom: 3px;
            width: 14px;
            height: 14px;
            background: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .brand-play i {
            font-size: 10px;
            color: var(--primary);
            line-height: 1;
        }
        .brand-text {
            font-size: 17px;
            font-weight: 700;
            color: var(--text-main);
            white-space: nowrap;
        }
        .navbar-nav .nav-link {
            padding: 8px 16px;
            font-size: 15px;
            font-weight: 400;
            color: #333;
            border-radius: 6px;
            position: relative;
            transition: color .2s;
        }
        .navbar-nav .nav-link:hover {
            color: var(--primary);
        }
        .navbar-nav .nav-link.active {
            color: var(--primary);
            font-weight: 600;
        }
        .navbar-nav .nav-link.active::after {
            content: '';
            position: absolute;
            left: 16px;
            right: 16px;
            bottom: 2px;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }
        .nav-right {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .search-box {
            display: flex;
            align-items: center;
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 20px;
            padding: 6px 14px;
            width: 200px;
            transition: border-color .2s, box-shadow .2s;
        }
        .search-box:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(255, 79, 31, .12);
        }
        .search-box i {
            color: var(--text-muted);
            font-size: 14px;
            margin-right: 8px;
        }
        .search-box input {
            border: 0;
            outline: none;
            font-size: 14px;
            background: transparent;
            width: 100%;
            color: var(--text-main);
        }
        .search-box input::placeholder {
            color: var(--text-muted);
        }
        .btn-enter {
            background: var(--primary);
            color: #fff;
            border-radius: var(--radius-btn);
            padding: 8px 20px;
            font-size: 14px;
            font-weight: 600;
            border: 0;
            transition: background .2s, box-shadow .2s, transform .2s;
            white-space: nowrap;
        }
        .btn-enter:hover {
            background: var(--primary-hover);
            color: #fff;
            box-shadow: var(--shadow-primary);
            transform: translateY(-1px);
        }
        .btn-enter:active {
            background: var(--primary-active);
        }
        .btn-enter:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
        }
        .navbar-toggler {
            border: 1px solid var(--border);
            border-radius: 8px;
            padding: 6px 10px;
        }
        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(255, 79, 31, .15);
        }

        /* ===== Hero（分类横幅） ===== */
        .page-hero {
            background-color: var(--dark);
            background-image: linear-gradient(120deg, rgba(23, 25, 29, .9) 30%, rgba(23, 25, 29, .55) 100%), url('/assets/images/backpic/back-1.webp');
            background-size: cover;
            background-position: center;
            color: #fff;
            padding: 88px 0 80px;
            position: relative;
        }
        .hero-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 79, 31, .18);
            color: #FFB49A;
            font-size: 13px;
            font-weight: 600;
            border-radius: var(--radius-tag);
            padding: 6px 14px;
            letter-spacing: .4px;
            margin-bottom: 20px;
        }
        .hero-tag .live-dot {
            width: 8px;
            height: 8px;
            background: var(--primary);
            border-radius: 50%;
            display: inline-block;
            animation: pulse-dot 1.6s ease infinite;
        }
        @keyframes pulse-dot {
            0%,
            100% {
                box-shadow: 0 0 0 0 rgba(255, 79, 31, .5);
            }
            50% {
                box-shadow: 0 0 0 5px rgba(255, 79, 31, 0);
            }
        }
        .page-hero h1 {
            font-size: clamp(28px, 4vw, 44px);
            font-weight: 700;
            line-height: 1.2;
            margin: 0 0 16px;
            color: #fff;
        }
        .hero-desc {
            font-size: 16px;
            color: rgba(255, 255, 255, .85);
            max-width: 620px;
            margin: 0 0 32px;
            line-height: 1.8;
        }
        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }
        .btn-hero-primary {
            background: var(--primary);
            color: #fff;
            border: 0;
            border-radius: var(--radius-btn);
            padding: 12px 28px;
            font-size: 15px;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: background .2s, box-shadow .2s, transform .2s;
        }
        .btn-hero-primary:hover {
            background: var(--primary-hover);
            color: #fff;
            box-shadow: var(--shadow-primary);
            transform: translateY(-2px);
        }
        .btn-hero-secondary {
            background: rgba(255, 255, 255, .08);
            color: #fff;
            border: 1px solid rgba(255, 255, 255, .3);
            border-radius: var(--radius-btn);
            padding: 12px 28px;
            font-size: 15px;
            font-weight: 500;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: background .2s, border-color .2s, transform .2s;
        }
        .btn-hero-secondary:hover {
            background: rgba(255, 255, 255, .15);
            border-color: rgba(255, 255, 255, .5);
            color: #fff;
            transform: translateY(-2px);
        }

        /* ===== 三点价值区 ===== */
        .feature-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 30px 26px;
            height: 100%;
            box-shadow: var(--shadow-card);
            transition: box-shadow .3s, transform .3s, border-color .3s;
        }
        .feature-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
            border-color: rgba(255, 79, 31, .25);
        }
        .feature-icon {
            width: 48px;
            height: 48px;
            border-radius: 12px;
            background: rgba(255, 79, 31, .1);
            color: var(--primary);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 22px;
            margin-bottom: 18px;
        }
        .feature-card h3 {
            font-size: 18px;
            font-weight: 600;
            margin: 0 0 10px;
            color: var(--text-main);
        }
        .feature-card p {
            font-size: 14px;
            color: var(--text-sub);
            margin: 0;
            line-height: 1.7;
        }

        /* ===== 直播预告卡片 ===== */
        .live-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: box-shadow .3s, transform .3s, border-color .3s;
            height: 100%;
            display: flex;
            flex-direction: column;
        }
        .live-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
            border-color: rgba(255, 79, 31, .25);
        }
        .card-cover {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            position: relative;
            background: var(--dark);
        }
        .card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .3s ease;
        }
        .live-card:hover .card-cover img {
            transform: scale(1.03);
        }
        .card-cover .duration-badge {
            position: absolute;
            right: 12px;
            bottom: 12px;
            background: rgba(0, 0, 0, .65);
            color: #fff;
            font-size: 12px;
            padding: 3px 10px;
            border-radius: 6px;
            letter-spacing: .3px;
        }
        .card-body {
            padding: 22px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .card-tag {
            align-self: flex-start;
            background: rgba(255, 79, 31, .1);
            color: var(--primary);
            font-size: 12px;
            font-weight: 600;
            border-radius: var(--radius-tag);
            padding: 4px 12px;
            margin-bottom: 12px;
        }
        .card-title {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.35;
            margin: 0 0 10px;
            color: var(--text-main);
        }
        .card-excerpt {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.7;
            margin: 0 0 16px;
            flex: 1;
        }
        .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-top: auto;
            padding-top: 14px;
            border-top: 1px solid var(--border);
        }
        .card-time {
            font-size: 13px;
            color: var(--text-muted);
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .btn-card {
            background: transparent;
            border: 1px solid var(--border);
            color: var(--text-main);
            border-radius: var(--radius-btn);
            padding: 6px 16px;
            font-size: 13px;
            font-weight: 500;
            transition: all .2s;
        }
        .btn-card:hover {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
            box-shadow: var(--shadow-primary);
        }

        /* ===== 预约流程 ===== */
        .step-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 30px 24px;
            text-align: center;
            height: 100%;
            box-shadow: var(--shadow-card);
            transition: box-shadow .3s, transform .3s;
            position: relative;
        }
        .step-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }
        .step-num {
            width: 46px;
            height: 46px;
            border-radius: 50%;
            background: var(--primary);
            color: #fff;
            font-weight: 700;
            font-size: 18px;
            display: flex;
            align-items: center;
            justify-content: center;
            margin: 0 auto 18px;
            box-shadow: var(--shadow-primary);
        }
        .step-card h3 {
            font-size: 17px;
            font-weight: 600;
            margin: 0 0 10px;
        }
        .step-card p {
            font-size: 14px;
            color: var(--text-sub);
            margin: 0;
            line-height: 1.7;
        }
        .step-arrow {
            position: absolute;
            right: -22px;
            top: 50%;
            transform: translateY(-50%);
            color: var(--border);
            font-size: 22px;
            z-index: 2;
            display: none;
        }
        @media (min-width: 992px) {
            .step-arrow {
                display: block;
            }
        }

        /* ===== 订阅提醒表单（简易） ===== */
        .subscribe-band {
            background: var(--dark);
            color: #fff;
            padding: 64px 0;
            background-image: linear-gradient(135deg, rgba(255, 79, 31, .08) 0%, transparent 50%), url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            position: relative;
        }
        .subscribe-band::before {
            content: '';
            position: absolute;
            inset: 0;
            background: rgba(23, 25, 29, .78);
            border-radius: 0;
        }
        .subscribe-band .container {
            position: relative;
            z-index: 2;
        }
        .subscribe-title {
            font-size: 26px;
            font-weight: 700;
            margin: 0 0 10px;
        }
        .subscribe-desc {
            color: rgba(255, 255, 255, .8);
            font-size: 15px;
            margin: 0 0 26px;
            max-width: 600px;
        }
        .subscribe-form {
            display: flex;
            gap: 12px;
            max-width: 520px;
            flex-wrap: wrap;
        }
        .subscribe-form .form-control {
            flex: 1;
            min-width: 220px;
            height: 48px;
            border-radius: var(--radius-input);
            border: 1px solid rgba(255, 255, 255, .2);
            background: rgba(255, 255, 255, .1);
            color: #fff;
            padding: 0 18px;
            font-size: 14px;
        }
        .subscribe-form .form-control::placeholder {
            color: rgba(255, 255, 255, .6);
        }
        .subscribe-form .form-control:focus {
            background: rgba(255, 255, 255, .16);
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(255, 79, 31, .2);
            color: #fff;
        }
        .subscribe-form .btn-subscribe {
            height: 48px;
            background: var(--primary);
            color: #fff;
            border: 0;
            border-radius: var(--radius-btn);
            padding: 0 28px;
            font-size: 15px;
            font-weight: 600;
            transition: background .2s, box-shadow .2s, transform .2s;
            white-space: nowrap;
        }
        .subscribe-form .btn-subscribe:hover {
            background: var(--primary-hover);
            box-shadow: var(--shadow-primary);
            transform: translateY(-1px);
        }
        .subscribe-privacy {
            margin-top: 14px;
            font-size: 13px;
            color: rgba(255, 255, 255, .55);
            display: flex;
            align-items: center;
            gap: 5px;
        }

        /* ===== FAQ ===== */
        .faq-section {
            background: var(--bg-warm);
        }
        .accordion-item {
            background: var(--card-bg);
            border: 1px solid var(--border) !important;
            border-radius: var(--radius-card) !important;
            margin-bottom: 12px;
            overflow: hidden;
            box-shadow: var(--shadow-card);
        }
        .accordion-button {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-main);
            background: #fff;
            padding: 18px 22px;
            box-shadow: none !important;
            border: 0 !important;
        }
        .accordion-button:not(.collapsed) {
            color: var(--primary);
            background: #fff;
        }
        .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(255, 79, 31, .12) !important;
        }
        .accordion-button::after {
            background-size: 16px;
            transition: transform .3s;
            opacity: .6;
        }
        .accordion-button:not(.collapsed)::after {
            transform: rotate(180deg);
            opacity: 1;
        }
        .accordion-body {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.8;
            padding: 4px 22px 20px;
        }

        /* ===== CTA 区块 ===== */
        .cta-band {
            background: linear-gradient(135deg, #17191D 0%, #24262c 100%);
            color: #fff;
            padding: 72px 0;
            text-align: center;
        }
        .cta-title {
            font-size: 28px;
            font-weight: 700;
            margin: 0 0 12px;
        }
        .cta-desc {
            color: rgba(255, 255, 255, .75);
            font-size: 15px;
            max-width: 520px;
            margin: 0 auto 30px;
        }
        .cta-actions {
            display: flex;
            justify-content: center;
            gap: 14px;
            flex-wrap: wrap;
        }
        .btn-cta-primary {
            background: var(--primary);
            color: #fff;
            border: 0;
            border-radius: var(--radius-btn);
            padding: 14px 36px;
            font-size: 15px;
            font-weight: 600;
            transition: background .2s, box-shadow .2s, transform .2s;
        }
        .btn-cta-primary:hover {
            background: var(--primary-hover);
            color: #fff;
            box-shadow: var(--shadow-primary);
            transform: translateY(-2px);
        }
        .btn-cta-secondary {
            background: transparent;
            color: rgba(255, 255, 255, .85);
            border: 1px solid rgba(255, 255, 255, .3);
            border-radius: var(--radius-btn);
            padding: 14px 36px;
            font-size: 14px;
            font-weight: 500;
            transition: background .2s, border-color .2s;
        }
        .btn-cta-secondary:hover {
            background: rgba(255, 255, 255, .1);
            border-color: rgba(255, 255, 255, .6);
            color: #fff;
        }

        /* ===== 页脚 ===== */
        .site-footer {
            background: #17191D;
            color: #CBD5E1;
            padding: 72px 32px 0;
            font-size: 14px;
        }
        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 14px;
        }
        .footer-brand-text {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
        }
        .footer-desc {
            font-size: 14px;
            color: #94A3B8;
            line-height: 1.7;
            margin: 0 0 18px;
            max-width: 320px;
        }
        .footer-title {
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            margin: 0 0 16px;
        }
        .footer-links,
        .footer-contact {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li,
        .footer-contact li {
            margin-bottom: 10px;
        }
        .footer-links a {
            color: #CBD5E1;
            text-decoration: none;
            transition: color .2s, padding-left .2s;
        }
        .footer-links a:hover {
            color: #fff;
            padding-left: 4px;
        }
        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 8px;
            color: #CBD5E1;
            font-size: 14px;
        }
        .footer-contact i {
            color: var(--primary);
            font-size: 15px;
        }
        .footer-bottom {
            margin-top: 48px;
            padding: 20px 0;
            border-top: 1px solid rgba(255, 255, 255, .08);
            text-align: center;
            font-size: 13px;
            color: #94A3B8;
        }
        .footer-bottom a {
            color: #CBD5E1;
        }
        .footer-bottom a:hover {
            color: #fff;
        }

        /* ===== 响应式断点 ===== */
        @media (max-width: 991px) {
            .navbar-collapse {
                background: #fff;
                border-radius: 12px;
                padding: 18px;
                box-shadow: var(--shadow-card-hover);
                margin-top: 12px;
                border: 1px solid var(--border);
            }
            .navbar-nav .nav-link {
                padding: 10px 16px;
                font-size: 15px;
                border-radius: 8px;
            }
            .navbar-nav .nav-link.active {
                background: rgba(255, 79, 31, .08);
            }
            .navbar-nav .nav-link.active::after {
                display: none;
            }
            .nav-right {
                flex-direction: column;
                align-items: stretch;
                margin-top: 12px;
                gap: 10px;
            }
            .search-box {
                width: 100%;
            }
            .btn-enter {
                text-align: center;
                padding: 10px 20px;
            }
            .section {
                padding: 56px 0;
            }
        }
        @media (max-width: 768px) {
            .page-hero {
                padding: 64px 0 56px;
                background-image: linear-gradient(135deg, rgba(23, 25, 29, .9) 20%, rgba(23, 25, 29, .6) 100%), url('/assets/images/backpic/back-1.webp');
            }
            .hero-actions {
                flex-direction: row;
                width: 100%;
                gap: 12px;
            }
            .hero-actions .btn-hero-primary,
            .hero-actions .btn-hero-secondary {
                flex: 1;
                justify-content: center;
                padding-left: 14px;
                padding-right: 14px;
                font-size: 14px;
            }
            .section-title {
                font-size: 24px;
            }
            .subscribe-form {
                flex-direction: column;
                width: 100%;
            }
            .subscribe-form .form-control {
                width: 100%;
                min-width: 0;
            }
            .subscribe-form .btn-subscribe {
                width: 100%;
            }
            .cta-title {
                font-size: 24px;
            }
            .step-arrow {
                display: none;
            }
        }
        @media (max-width: 576px) {
            .container {
                padding-left: 18px;
                padding-right: 18px;
            }
            .section {
                padding: 44px 0;
            }
            .brand-text {
                font-size: 15px;
            }
            .card-title {
                font-size: 16px;
            }
            .footer-bottom {
                text-align: center;
            }
        }
        @media (prefers-reduced-motion: reduce) {
            * {
                transition: none !important;
                animation: none !important;
            }
        }

/* roulang page: article */
/* ========== 设计变量 ========== */
        :root {
            --color-primary: #FF4F1F;
            --color-primary-hover: #E0430F;
            --color-primary-active: #C93A0C;
            --color-dark: #17191D;
            --color-text: #1F2329;
            --color-text-sub: #4B5563;
            --color-text-weak: #9CA3AF;
            --color-bg: #F6F4F1;
            --color-card: #FFFFFF;
            --color-border: #E5E7EB;
            --color-success: #10B981;
            --color-danger: #DC2626;
            --radius-card: 12px;
            --radius-btn: 999px;
            --radius-input: 10px;
            --radius-tag: 6px;
            --shadow-card: 0 1px 2px rgba(0,0,0,0.04), 0 2px 8px rgba(0,0,0,0.03);
            --shadow-card-hover: 0 8px 24px rgba(0,0,0,0.08);
            --shadow-nav: 0 2px 12px rgba(23,25,29,0.05);
            --shadow-btn: 0 6px 16px rgba(255,79,31,0.25);
            --font-sans: "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
        }

        /* ========== 基础重置 ========== */
        * {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-sans);
            color: var(--color-text);
            background-color: var(--color-bg);
            line-height: 1.7;
            font-size: 16px;
            margin: 0;
            padding: 0;
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color .2s ease;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        .container {
            max-width: 1200px;
        }

        /* ========== 按钮覆盖 ========== */
        .btn {
            border-radius: var(--radius-btn);
            font-weight: 600;
            padding: 10px 26px;
            transition: all .3s ease;
            border: 1px solid transparent;
        }

        .btn-primary {
            background-color: var(--color-primary);
            border-color: var(--color-primary);
            box-shadow: var(--shadow-btn);
        }

        .btn-primary:hover {
            background-color: var(--color-primary-hover);
            border-color: var(--color-primary-hover);
            box-shadow: 0 8px 22px rgba(255, 79, 31, 0.35);
            transform: translateY(-1px);
        }

        .btn-primary:focus,
        .btn-primary:focus-visible {
            background-color: var(--color-primary);
            border-color: var(--color-primary);
            box-shadow: 0 0 0 4px rgba(255, 79, 31, 0.2);
            outline: none;
        }

        .btn-primary:active {
            background-color: var(--color-primary-active) !important;
            border-color: var(--color-primary-active) !important;
        }

        .btn-lg {
            padding: 13px 32px;
            font-size: 16px;
        }

        .btn-outline-light {
            border: 1px solid rgba(255, 255, 255, 0.6);
            color: #fff;
            background: transparent;
            border-radius: var(--radius-btn);
            font-weight: 600;
            padding: 10px 26px;
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.12);
            border-color: #fff;
            color: #fff;
        }

        .btn-outline-light:focus {
            box-shadow: 0 0 0 4px rgba(255, 255, 255, 0.2);
        }

        /* ========== Header / 导航 ========== */
        .site-header {
            background: #fff;
            border-bottom: 1px solid var(--color-border);
            box-shadow: var(--shadow-nav);
            position: relative;
            z-index: 100;
        }

        .navbar {
            min-height: 64px;
            padding-top: 0;
            padding-bottom: 0;
            background: #fff;
        }

        .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 0;
            margin-right: 24px;
        }

        .brand-icon {
            position: relative;
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: var(--color-primary);
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 12px rgba(255, 79, 31, 0.3);
            flex-shrink: 0;
        }

        .brand-letter {
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            line-height: 1;
            font-family: var(--font-sans);
        }

        .brand-play {
            position: absolute;
            right: -3px;
            bottom: 0px;
            width: 16px;
            height: 16px;
            background: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
        }

        .brand-play i {
            font-size: 10px;
            color: var(--color-primary);
            line-height: 1;
            margin-left: 1px;
        }

        .brand-text {
            font-size: 18px;
            font-weight: 700;
            color: var(--color-dark);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .navbar-nav {
            gap: 4px;
        }

        .navbar-nav .nav-link {
            padding: 22px 16px !important;
            font-weight: 500;
            color: #333;
            position: relative;
            transition: color .2s ease;
            font-size: 15px;
        }

        .navbar-nav .nav-link:hover {
            color: var(--color-primary);
        }

        .navbar-nav .nav-link.active {
            color: var(--color-primary);
            font-weight: 600;
        }

        .navbar-nav .nav-link.active::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 16px;
            right: 16px;
            height: 3px;
            background: var(--color-primary);
            border-radius: 3px 3px 0 0;
        }

        .nav-right {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .search-box {
            position: relative;
            display: flex;
            align-items: center;
        }

        .search-box i {
            position: absolute;
            left: 14px;
            color: var(--color-text-weak);
            font-size: 14px;
            pointer-events: none;
        }

        .search-box input {
            width: 180px;
            height: 40px;
            border: 1px solid var(--color-border);
            border-radius: 20px;
            padding: 0 14px 0 38px;
            font-size: 14px;
            background: #F9FAFB;
            color: var(--color-text);
            transition: all .3s ease;
            font-family: var(--font-sans);
        }

        .search-box input:focus {
            outline: none;
            border-color: var(--color-primary);
            background: #fff;
            box-shadow: 0 0 0 3px rgba(255, 79, 31, 0.12);
        }

        .btn-enter {
            height: 40px;
            padding: 0 24px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 15px;
            white-space: nowrap;
        }

        .navbar-toggler {
            border: 1px solid var(--color-border);
            border-radius: 8px;
            padding: 6px 10px;
        }

        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(255, 79, 31, 0.15);
        }

        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(23,25,29,0.7)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* ========== 面包屑 ========== */
        .breadcrumb-wrap {
            background: #fff;
            border-bottom: 1px solid var(--color-border);
        }

        .breadcrumb {
            margin-bottom: 0;
            padding: 14px 0;
            font-size: 14px;
        }

        .breadcrumb-item + .breadcrumb-item::before {
            content: "›";
            color: var(--color-text-weak);
        }

        .breadcrumb-item a {
            color: var(--color-text-sub);
        }

        .breadcrumb-item a:hover {
            color: var(--color-primary);
        }

        .breadcrumb-item.active {
            color: var(--color-primary);
            font-weight: 500;
            max-width: 400px;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        /* ========== 文章头部 ========== */
        .article-header-section {
            background: #fff;
            padding: 56px 0 36px;
            border-bottom: 1px solid var(--color-border);
        }

        .article-header-card {
            max-width: 760px;
            margin: 0 auto;
            text-align: center;
        }

        .article-header-card h1 {
            font-size: clamp(26px, 3.5vw, 36px);
            font-weight: 700;
            line-height: 1.3;
            margin-bottom: 22px;
            color: var(--color-dark);
        }

        .article-meta {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 20px;
            color: var(--color-text-weak);
            font-size: 14px;
        }

        .article-meta span {
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .article-meta i {
            color: var(--color-primary);
        }

        /* ========== 正文阅读区 ========== */
        .article-body-section {
            background: var(--color-bg);
            padding: 48px 0 64px;
        }

        .article-body {
            max-width: 760px;
            margin: 0 auto;
            background: #fff;
            border-radius: var(--radius-card);
            padding: 48px;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--color-border);
            font-size: 16px;
            line-height: 1.8;
            color: var(--color-text);
        }

        .article-body h2 {
            font-size: 24px;
            font-weight: 700;
            margin-top: 40px;
            margin-bottom: 16px;
            padding-bottom: 10px;
            border-bottom: 2px solid var(--color-primary);
            color: var(--color-dark);
        }

        .article-body h3 {
            font-size: 19px;
            font-weight: 700;
            margin-top: 32px;
            margin-bottom: 12px;
            color: var(--color-dark);
        }

        .article-body h4 {
            font-size: 17px;
            font-weight: 600;
            margin-top: 28px;
            margin-bottom: 10px;
        }

        .article-body p {
            margin-bottom: 18px;
        }

        .article-body p:first-of-type {
            text-indent: 2em;
        }

        .article-body ul,
        .article-body ol {
            margin-bottom: 18px;
            padding-left: 1.5em;
        }

        .article-body li {
            margin-bottom: 6px;
        }

        .article-body blockquote {
            border-left: 4px solid var(--color-primary);
            background: var(--color-bg);
            padding: 16px 24px;
            margin: 24px 0;
            border-radius: 0 8px 8px 0;
            color: var(--color-text-sub);
            font-style: normal;
        }

        .article-body img {
            max-width: 100%;
            border-radius: var(--radius-card);
            margin: 24px 0;
        }

        .article-body a {
            color: var(--color-primary);
            text-decoration: underline;
        }

        .article-body a:hover {
            color: var(--color-primary-hover);
        }

        /* 空态 */
        .article-empty {
            text-align: center;
            padding: 40px 20px;
        }

        .article-empty p {
            font-size: 18px;
            color: var(--color-text-sub);
            margin-bottom: 20px;
        }

        /* ========== 文末 CTA ========== */
        .article-cta-section {
            background: var(--color-dark);
            padding: 80px 0;
            position: relative;
            overflow: hidden;
        }

        .article-cta-section::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(135deg, rgba(255, 79, 31, 0.18) 0%, transparent 60%);
            pointer-events: none;
        }

        .article-cta-section::after {
            content: "";
            position: absolute;
            bottom: -60px;
            right: -60px;
            width: 260px;
            height: 260px;
            border-radius: 50%;
            background: radial-gradient(circle, rgba(255, 79, 31, 0.12) 0%, transparent 70%);
            pointer-events: none;
        }

        .article-cta-card {
            position: relative;
            z-index: 2;
            max-width: 640px;
            margin: 0 auto;
            text-align: center;
            color: #fff;
        }

        .article-cta-card h3 {
            font-size: 28px;
            font-weight: 700;
            margin-bottom: 14px;
        }

        .article-cta-card p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 16px;
            margin-bottom: 32px;
        }

        .cta-actions {
            display: flex;
            justify-content: center;
            flex-wrap: wrap;
            gap: 16px;
        }

        /* ========== 相关推荐 ========== */
        .related-section {
            background: var(--color-bg);
            padding: 72px 0 80px;
        }

        .related-section .section-title {
            text-align: center;
            font-size: 28px;
            font-weight: 700;
            color: var(--color-dark);
            margin-bottom: 12px;
        }

        .related-section .section-subtitle {
            text-align: center;
            color: var(--color-text-sub);
            font-size: 15px;
            margin-bottom: 40px;
        }

        .related-card {
            background: #fff;
            border: 1px solid var(--color-border);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: all .3s ease;
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(255, 79, 31, 0.3);
        }

        .related-card .card-img {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--color-dark);
        }

        .related-card .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
        }

        .related-card:hover .card-img img {
            transform: scale(1.03);
        }

        .related-card .card-body {
            padding: 22px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }

        .card-tag {
            display: inline-flex;
            align-items: center;
            background: rgba(255, 79, 31, 0.1);
            color: var(--color-primary);
            font-size: 12px;
            font-weight: 600;
            padding: 4px 10px;
            border-radius: var(--radius-tag);
            margin-bottom: 10px;
            width: fit-content;
        }

        .related-card .card-title {
            font-size: 18px;
            font-weight: 700;
            color: var(--color-dark);
            margin-bottom: 8px;
            line-height: 1.4;
        }

        .related-card .card-text {
            font-size: 14px;
            color: var(--color-text-sub);
            line-height: 1.7;
            margin-bottom: 16px;
            flex: 1;
        }

        .related-card .card-link {
            font-size: 14px;
            font-weight: 600;
            color: var(--color-primary);
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .related-card .card-link:hover {
            color: var(--color-primary-hover);
            gap: 7px;
        }

        .related-card .card-link i {
            transition: transform .2s ease;
        }

        /* ========== 页脚 ========== */
        .site-footer {
            background: var(--color-dark);
            color: #fff;
            padding: 72px 0 0;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }

        .footer-brand-text {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
        }

        .footer-desc {
            color: #9CA3AF;
            font-size: 14px;
            line-height: 1.8;
            margin-bottom: 16px;
            max-width: 360px;
        }

        .footer-title {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 20px;
            position: relative;
            padding-bottom: 10px;
        }

        .footer-title::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            width: 24px;
            height: 3px;
            background: var(--color-primary);
            border-radius: 3px;
        }

        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-links li {
            margin-bottom: 10px;
        }

        .footer-links a {
            color: #CBD5E1;
            font-size: 14px;
            transition: all .2s ease;
            display: inline-flex;
            align-items: center;
            gap: 4px;
        }

        .footer-links a:hover {
            color: var(--color-primary);
            padding-left: 4px;
        }

        .footer-contact {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #CBD5E1;
            font-size: 14px;
            margin-bottom: 12px;
        }

        .footer-contact i {
            color: var(--color-primary);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            padding: 20px 0;
            margin-top: 56px;
            text-align: center;
        }

        .footer-bottom p {
            color: #9CA3AF;
            font-size: 14px;
        }

        .footer-bottom a {
            color: #CBD5E1;
        }

        .footer-bottom a:hover {
            color: var(--color-primary);
        }

        /* ========== 响应式 ========== */
        @media (max-width: 991.98px) {
            .navbar-collapse {
                background: #fff;
                border-top: 1px solid var(--color-border);
                padding: 16px 0;
                border-radius: 0 0 12px 12px;
                box-shadow: var(--shadow-nav);
            }

            .navbar-nav .nav-link {
                padding: 12px 16px !important;
            }

            .navbar-nav .nav-link.active::after {
                display: none;
            }

            .nav-right {
                padding: 8px 16px;
                flex-wrap: wrap;
            }

            .search-box {
                flex: 1;
            }

            .search-box input {
                width: 100%;
            }
        }

        @media (max-width: 768px) {
            .brand-text {
                font-size: 16px;
            }

            .article-header-section {
                padding: 36px 0 24px;
            }

            .article-body-section {
                padding: 32px 0 48px;
            }

            .article-body {
                padding: 28px 20px;
                border-radius: 10px;
            }

            .article-body h2 {
                font-size: 21px;
            }

            .article-body h3 {
                font-size: 17px;
            }

            .article-cta-section {
                padding: 56px 0;
            }

            .article-cta-card h3 {
                font-size: 22px;
            }

            .related-section {
                padding: 56px 0 64px;
            }

            .related-section .section-title {
                font-size: 24px;
            }

            .cta-actions {
                flex-direction: column;
                align-items: center;
            }

            .cta-actions .btn {
                width: 100%;
                max-width: 320px;
            }

            .site-footer {
                padding: 56px 0 0;
            }

            .footer-bottom {
                margin-top: 40px;
            }
        }

        @media (max-width: 576px) {
            .breadcrumb-item.active {
                max-width: 180px;
            }

            .article-meta {
                gap: 12px;
                font-size: 13px;
            }
        }

/* roulang page: category3 */
:root {
            --primary: #FF4F1F;
            --primary-hover: #E0430F;
            --primary-active: #C93A0C;
            --dark: #17191D;
            --text: #1F2329;
            --text-sub: #4B5563;
            --text-light: #9CA3AF;
            --bg: #F6F4F1;
            --card-bg: #FFFFFF;
            --border: #E5E7EB;
            --success: #10B981;
            --danger: #DC2626;
            --radius-card: 12px;
            --radius-pill: 999px;
            --radius-input: 10px;
            --radius-tag: 6px;
            --shadow-card: 0 1px 2px rgba(0,0,0,0.04), 0 2px 8px rgba(0,0,0,0.03);
            --shadow-card-hover: 0 8px 24px rgba(0,0,0,0.08);
            --shadow-nav: 0 2px 12px rgba(23,25,29,0.05);
            --shadow-btn: 0 6px 16px rgba(255,79,31,0.25);
            --font: "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: var(--font);
            font-size: 15px;
            line-height: 1.75;
            color: var(--text);
            background-color: var(--bg);
            -webkit-font-smoothing: antialiased;
        }

        img {
            max-width: 100%;
            display: block;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: color .2s ease;
        }

        a:hover {
            color: var(--primary);
        }

        .container {
            max-width: 1200px;
        }

        /* ==================== Header ==================== */
        .site-header {
            background: #FFFFFF;
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-nav);
            position: sticky;
            top: 0;
            z-index: 1030;
            height: 64px;
        }
        .site-header .navbar {
            height: 64px;
            padding: 0;
        }
        .site-header .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 0;
            margin: 0;
        }
        .brand-icon {
            position: relative;
            width: 36px;
            height: 36px;
            background: var(--primary);
            border-radius: 10px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
        }
        .brand-letter {
            font-size: 18px;
            font-weight: 800;
            color: #fff;
            line-height: 1;
        }
        .brand-play {
            position: absolute;
            right: -3px;
            bottom: -3px;
            width: 16px;
            height: 16px;
            background: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 10px;
            color: var(--primary);
            box-shadow: 0 1px 4px rgba(0,0,0,0.15);
        }
        .brand-text {
            font-size: 18px;
            font-weight: 700;
            color: var(--text);
            letter-spacing: .5px;
            white-space: nowrap;
        }
        .navbar-nav {
            gap: 6px;
        }
        .navbar-nav .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: #333;
            padding: 6px 14px;
            border-radius: var(--radius-btn);
            position: relative;
            transition: color .2s;
        }
        .navbar-nav .nav-link:hover {
            color: var(--primary);
        }
        .navbar-nav .nav-link.active {
            color: var(--primary);
            font-weight: 600;
        }
        .navbar-nav .nav-link.active::after {
            content: '';
            position: absolute;
            left: 14px;
            right: 14px;
            bottom: 0;
            height: 2px;
            background: var(--primary);
            border-radius: 2px;
        }
        .nav-right {
            display: flex;
            align-items: center;
            gap: 14px;
        }
        .search-box {
            display: flex;
            align-items: center;
            width: 180px;
            height: 36px;
            background: #F6F4F1;
            border-radius: 20px;
            padding: 0 14px;
            border: 1px solid transparent;
            transition: border-color .2s, box-shadow .2s;
        }
        .search-box i {
            font-size: 14px;
            color: var(--text-light);
            margin-right: 6px;
        }
        .search-box input {
            border: none;
            outline: none;
            background: transparent;
            font-size: 13px;
            width: 100%;
            color: var(--text);
        }
        .search-box input::placeholder {
            color: #aaa;
        }
        .search-box:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(255, 79, 31, 0.12);
        }
        .btn-enter {
            height: 36px;
            line-height: 22px;
            padding: 0 20px;
            border-radius: var(--radius-pill);
            background: var(--primary);
            border: none;
            font-size: 14px;
            font-weight: 600;
            color: #fff;
            box-shadow: var(--shadow-btn);
            transition: background .2s, box-shadow .2s, transform .2s;
        }
        .btn-enter:hover {
            background: var(--primary-hover);
            color: #fff;
            box-shadow: 0 8px 20px rgba(255, 79, 31, 0.3);
        }
        .btn-enter:focus {
            outline: none;
            box-shadow: 0 0 0 3px rgba(255, 79, 31, 0.25);
        }
        .navbar-toggler {
            border: none;
            padding: 4px 8px;
        }
        .navbar-toggler:focus {
            box-shadow: none;
        }
        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%231F2329' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* ==================== Banner ==================== */
        .page-banner {
            position: relative;
            background: var(--dark) url('/assets/images/backpic/back-1.webp') center / cover no-repeat;
            padding: 72px 0 80px;
            color: #fff;
            overflow: hidden;
        }
        .page-banner::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(90deg, rgba(23, 25, 29, 0.88) 0%, rgba(23, 25, 29, 0.55) 60%, rgba(23, 25, 29, 0.35) 100%);
        }
        .page-banner .container {
            position: relative;
            z-index: 2;
        }
        .banner-tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 79, 31, 0.15);
            border: 1px solid rgba(255, 79, 31, 0.35);
            color: #FFB59B;
            font-size: 13px;
            font-weight: 500;
            padding: 4px 14px;
            border-radius: var(--radius-pill);
            margin-bottom: 18px;
            letter-spacing: 1px;
        }
        .banner-tag i {
            font-size: 12px;
        }
        .banner-title {
            font-size: clamp(28px, 4vw, 44px);
            font-weight: 800;
            line-height: 1.2;
            margin: 0 0 14px;
            max-width: 680px;
        }
        .banner-desc {
            font-size: 16px;
            line-height: 1.75;
            color: rgba(255, 255, 255, 0.85);
            max-width: 560px;
            margin: 0;
        }
        .banner-meta {
            margin-top: 24px;
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
        }
        .banner-stat {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.1);
            border: 1px solid rgba(255, 255, 255, 0.15);
            border-radius: var(--radius-pill);
            padding: 6px 16px;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.9);
        }
        .banner-stat i {
            color: #FFB59B;
        }

        /* ==================== Help Cards ==================== */
        .section-help {
            padding: 80px 0;
        }
        .section-head {
            text-align: center;
            margin-bottom: 48px;
        }
        .section-head .section-tag {
            display: inline-block;
            font-size: 13px;
            font-weight: 600;
            color: var(--primary);
            background: rgba(255, 79, 31, 0.08);
            padding: 4px 14px;
            border-radius: var(--radius-tag);
            margin-bottom: 12px;
            letter-spacing: .5px;
        }
        .section-head h2 {
            font-size: 28px;
            font-weight: 800;
            color: var(--text);
            margin: 0 0 10px;
        }
        .section-head p {
            font-size: 15px;
            color: var(--text-sub);
            margin: 0;
            max-width: 560px;
            margin-left: auto;
            margin-right: auto;
        }
        .help-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            height: 100%;
            box-shadow: var(--shadow-card);
            transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
            display: flex;
            flex-direction: column;
        }
        .help-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-card-hover);
            border-color: rgba(255, 79, 31, 0.25);
        }
        .help-card-img {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--dark);
        }
        .help-card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .3s ease;
        }
        .help-card:hover .help-card-img img {
            transform: scale(1.03);
        }
        .help-card-img .card-img-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: rgba(23, 25, 29, 0.75);
            backdrop-filter: blur(4px);
            color: #fff;
            font-size: 12px;
            font-weight: 500;
            padding: 3px 10px;
            border-radius: var(--radius-tag);
            letter-spacing: .5px;
        }
        .help-card-body {
            padding: 20px 20px 16px;
            display: flex;
            flex-direction: column;
            flex: 1;
        }
        .help-card-body h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text);
            margin: 0 0 8px;
            line-height: 1.4;
        }
        .help-card-body p {
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.7;
            margin: 0 0 16px;
            flex: 1;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .help-card-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 600;
            color: var(--primary);
            margin-top: auto;
        }
        .help-card-link i {
            transition: transform .2s;
        }
        .help-card:hover .help-card-link i {
            transform: translateX(4px);
        }

        /* ==================== Steps ==================== */
        .section-steps {
            background: var(--dark);
            padding: 80px 0;
            color: #fff;
        }
        .section-steps .section-head h2 {
            color: #fff;
        }
        .section-steps .section-head p {
            color: rgba(255, 255, 255, 0.7);
        }
        .step-item {
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            height: 100%;
            position: relative;
            transition: border-color .2s, background .2s;
        }
        .step-item:hover {
            border-color: rgba(255, 79, 31, 0.4);
            background: rgba(255, 255, 255, 0.06);
        }
        .step-num {
            font-size: 32px;
            font-weight: 800;
            color: var(--primary);
            font-family: monospace;
            line-height: 1;
            margin-bottom: 16px;
            font-variant-numeric: tabular-nums;
        }
        .step-item h3 {
            font-size: 17px;
            font-weight: 600;
            color: #fff;
            margin: 0 0 8px;
        }
        .step-item p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            margin: 0;
            line-height: 1.7;
        }
        .step-line {
            position: absolute;
            top: 50%;
            right: -20px;
            width: 40px;
            height: 1px;
            background: linear-gradient(90deg, rgba(255,79,31,0.4), transparent);
            display: none;
        }
        @media (min-width: 992px) {
            .step-item:not(:last-child) .step-line {
                display: block;
            }
        }

        /* ==================== FAQ ==================== */
        .section-faq {
            padding: 80px 0;
            background: var(--bg);
        }
        .accordion {
            max-width: 820px;
            margin: 0 auto;
        }
        .accordion-item {
            background: var(--card-bg);
            border: 1px solid var(--border) !important;
            border-radius: var(--radius-card) !important;
            margin-bottom: 12px;
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: box-shadow .2s;
        }
        .accordion-item:hover {
            box-shadow: var(--shadow-card-hover);
        }
        .accordion-button {
            background: #fff;
            color: var(--text);
            font-size: 16px;
            font-weight: 600;
            padding: 18px 20px;
            box-shadow: none;
            border: none;
        }
        .accordion-button:not(.collapsed) {
            background: #fff;
            color: var(--primary);
            box-shadow: none;
        }
        .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(255, 79, 31, 0.15);
        }
        .accordion-button::after {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23FF4F1F'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
            transition: transform .2s ease;
        }
        .accordion-button:not(.collapsed)::after {
            transform: rotate(180deg);
        }
        .accordion-body {
            padding: 0 20px 20px;
            font-size: 14px;
            color: var(--text-sub);
            line-height: 1.75;
            border-top: 1px solid var(--border);
        }
        .accordion-body p {
            margin: 12px 0 0;
        }

        /* ==================== CTA ==================== */
        .section-cta {
            padding: 64px 0 80px;
            background: var(--bg);
        }
        .cta-box {
            background: var(--dark);
            background-image: radial-gradient(circle at 20% 30%, rgba(255, 79, 31, 0.2) 0%, transparent 40%);
            border-radius: 20px;
            padding: 56px 48px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }
        .cta-box::after {
            content: '';
            position: absolute;
            right: -40px;
            bottom: -40px;
            width: 180px;
            height: 180px;
            background: radial-gradient(circle, rgba(255, 79, 31, 0.25) 0%, transparent 70%);
            border-radius: 50%;
        }
        .cta-box h2 {
            font-size: 30px;
            font-weight: 800;
            margin: 0 0 12px;
        }
        .cta-box p {
            font-size: 16px;
            color: rgba(255, 255, 255, 0.75);
            margin: 0 auto 28px;
            max-width: 520px;
        }
        .cta-buttons {
            display: flex;
            justify-content: center;
            gap: 14px;
            flex-wrap: wrap;
            position: relative;
            z-index: 2;
        }
        .btn-cta-primary {
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-pill);
            padding: 12px 28px;
            font-size: 15px;
            font-weight: 600;
            box-shadow: var(--shadow-btn);
            transition: background .2s, box-shadow .2s, transform .2s;
        }
        .btn-cta-primary:hover {
            background: var(--primary-hover);
            color: #fff;
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(255, 79, 31, 0.35);
        }
        .btn-cta-primary:focus {
            outline: none;
            box-shadow: 0 0 0 3px rgba(255, 79, 31, 0.4);
        }
        .btn-cta-ghost {
            background: transparent;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.3);
            border-radius: var(--radius-pill);
            padding: 12px 28px;
            font-size: 15px;
            font-weight: 500;
            transition: background .2s, border-color .2s, transform .2s;
        }
        .btn-cta-ghost:hover {
            background: rgba(255, 255, 255, 0.1);
            color: #fff;
            border-color: rgba(255, 255, 255, 0.6);
            transform: translateY(-2px);
        }
        .btn-cta-ghost:focus {
            outline: none;
            box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.25);
        }

        /* ==================== Footer ==================== */
        .site-footer {
            background: var(--dark);
            color: #CBD5E1;
            padding: 72px 0 0;
        }
        .site-footer .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }
        .site-footer .brand-icon {
            width: 36px;
            height: 36px;
        }
        .site-footer .brand-letter {
            font-size: 18px;
        }
        .site-footer .brand-play {
            width: 16px;
            height: 16px;
            font-size: 10px;
        }
        .footer-brand-text {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
        }
        .footer-desc {
            font-size: 14px;
            line-height: 1.75;
            color: rgba(255, 255, 255, 0.6);
            margin: 0;
            max-width: 300px;
        }
        .footer-title {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin: 0 0 16px;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 10px;
        }
        .footer-links a {
            color: rgba(255, 255, 255, 0.65);
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: color .2s, padding-left .2s;
        }
        .footer-links a:hover {
            color: #fff;
            padding-left: 4px;
        }
        .footer-links a i {
            font-size: 12px;
            color: var(--primary);
        }
        .footer-contact {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 10px;
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            margin-bottom: 10px;
        }
        .footer-contact i {
            color: var(--primary);
            font-size: 14px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.1);
            margin-top: 48px;
            padding: 20px 0;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, 0.5);
        }
        .footer-bottom a {
            color: rgba(255, 255, 255, 0.7);
        }
        .footer-bottom a:hover {
            color: #fff;
        }

        /* ==================== Responsive ==================== */
        @media (max-width: 991.98px) {
            .site-header {
                height: auto;
                min-height: 60px;
            }
            .site-header .navbar {
                height: auto;
                min-height: 60px;
                padding: 8px 0;
            }
            .navbar-collapse {
                background: #fff;
                padding: 16px;
                border-radius: var(--radius-card);
                box-shadow: var(--shadow-card-hover);
                margin-top: 8px;
                border: 1px solid var(--border);
            }
            .navbar-nav {
                gap: 0;
                margin-bottom: 12px;
            }
            .navbar-nav .nav-link {
                padding: 10px 12px;
                border-radius: 8px;
            }
            .navbar-nav .nav-link.active::after {
                display: none;
            }
            .navbar-nav .nav-link.active {
                background: rgba(255, 79, 31, 0.08);
            }
            .nav-right {
                flex-direction: column;
                align-items: stretch;
                gap: 10px;
            }
            .search-box {
                width: 100%;
            }
            .btn-enter {
                width: 100%;
                height: 40px;
            }
            .section-help,
            .section-steps,
            .section-faq,
            .section-cta {
                padding: 48px 0;
            }
            .page-banner {
                padding: 56px 0 64px;
            }
            .cta-box {
                padding: 40px 24px;
            }
            .cta-box h2 {
                font-size: 24px;
            }
        }

        @media (max-width: 767.98px) {
            .brand-text {
                font-size: 16px;
            }
            .page-banner {
                padding: 48px 0 56px;
            }
            .banner-title {
                font-size: 26px;
            }
            .banner-desc {
                font-size: 14px;
            }
            .section-head h2 {
                font-size: 24px;
            }
            .step-item {
                padding: 24px 20px;
            }
            .cta-box p {
                font-size: 14px;
            }
            .footer-bottom {
                padding: 16px 12px;
            }
        }

        @media (max-width: 575.98px) {
            .banner-meta {
                gap: 8px;
            }
            .banner-stat {
                font-size: 12px;
                padding: 4px 12px;
            }
            .section-head p {
                font-size: 14px;
            }
            .help-card-body {
                padding: 16px;
            }
            .help-card-body h3 {
                font-size: 17px;
            }
        }

/* roulang page: category2 */
/* ============ 设计变量 ============ */
        :root {
            --primary: #FF4F1F;
            --primary-hover: #E0430F;
            --primary-active: #C93A0C;
            --dark: #17191D;
            --text: #1F2329;
            --text-secondary: #4B5563;
            --text-muted: #9CA3AF;
            --bg: #F6F4F1;
            --bg-card: #FFFFFF;
            --border: #E5E7EB;
            --green: #10B981;
            --red: #DC2626;
            --radius-card: 12px;
            --radius-btn: 999px;
            --radius-input: 10px;
            --radius-tag: 6px;
            --shadow-card: 0 1px 2px rgba(0, 0, 0, 0.04), 0 2px 8px rgba(0, 0, 0, 0.03);
            --shadow-card-hover: 0 8px 24px rgba(0, 0, 0, 0.08);
            --shadow-nav: 0 2px 12px rgba(23, 25, 29, 0.05);
            --shadow-primary: 0 6px 16px rgba(255, 79, 31, 0.25);
            --font-family: "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
        }

        /* ============ Reset / Base ============ */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font-family);
            background: var(--bg);
            color: var(--text);
            line-height: 1.7;
            font-size: 15px;
            -webkit-font-smoothing: antialiased;
        }

        a {
            color: var(--text);
            text-decoration: none;
            transition: color 0.2s ease;
        }

        a:hover {
            color: var(--primary);
        }

        img {
            max-width: 100%;
            display: block;
        }

        ul,
        ol {
            list-style: none;
        }

        .container {
            max-width: 1200px;
            padding-left: 20px;
            padding-right: 20px;
        }

        .section {
            padding: 80px 0;
        }

        .section-head {
            margin-bottom: 48px;
        }

        .section-head .section-tag {
            display: inline-block;
            background: rgba(255, 79, 31, 0.08);
            color: var(--primary);
            font-size: 13px;
            font-weight: 600;
            padding: 4px 14px;
            border-radius: var(--radius-tag);
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }

        .section-head h2 {
            font-size: clamp(24px, 3vw, 32px);
            font-weight: 700;
            color: var(--text);
            line-height: 1.3;
            margin-bottom: 12px;
        }

        .section-head p {
            color: var(--text-secondary);
            font-size: 15px;
            max-width: 640px;
            line-height: 1.8;
        }

        /* ============ 按钮 ============ */
        .btn {
            border-radius: var(--radius-btn);
            font-weight: 600;
            font-size: 15px;
            padding: 10px 26px;
            transition: all 0.3s ease;
            border: 2px solid transparent;
        }

        .btn-primary {
            background: var(--primary);
            border-color: var(--primary);
            color: #fff;
            box-shadow: var(--shadow-primary);
        }

        .btn-primary:hover,
        .btn-primary:focus {
            background: var(--primary-hover);
            border-color: var(--primary-hover);
            color: #fff;
            box-shadow: 0 8px 22px rgba(255, 79, 31, 0.35);
            transform: translateY(-1px);
        }

        .btn-primary:active {
            background: var(--primary-active);
            border-color: var(--primary-active);
            transform: translateY(0);
        }

        .btn-outline-light {
            background: transparent;
            border-color: rgba(255, 255, 255, 0.7);
            color: #fff;
        }

        .btn-outline-light:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: #fff;
            color: #fff;
        }

        .btn-outline-dark {
            background: #fff;
            border-color: var(--border);
            color: var(--text);
        }

        .btn-outline-dark:hover {
            background: var(--bg);
            border-color: var(--primary);
            color: var(--primary);
        }

        .btn:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 2px;
            box-shadow: 0 0 0 4px rgba(255, 79, 31, 0.15);
        }

        /* ============ 导航 ============ */
        .site-header {
            background: #fff;
            border-bottom: 1px solid var(--border);
            box-shadow: var(--shadow-nav);
            position: sticky;
            top: 0;
            z-index: 1040;
        }

        .site-header .navbar {
            min-height: 64px;
            padding: 0;
        }

        .site-header .navbar-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            padding: 0;
            margin: 0;
            font-weight: 700;
            color: var(--text);
        }

        .brand-icon {
            width: 38px;
            height: 38px;
            background: var(--primary);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            position: relative;
            flex-shrink: 0;
            box-shadow: 0 4px 10px rgba(255, 79, 31, 0.25);
        }

        .brand-letter {
            color: #fff;
            font-weight: 800;
            font-size: 20px;
            line-height: 1;
            margin-right: -2px;
        }

        .brand-play {
            position: absolute;
            right: -4px;
            top: -4px;
            width: 18px;
            height: 18px;
            background: #fff;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary);
            font-size: 11px;
            box-shadow: 0 2px 6px rgba(0, 0, 0, 0.15);
        }

        .brand-text {
            font-size: 17px;
            font-weight: 700;
            color: var(--text);
            letter-spacing: 0.5px;
            white-space: nowrap;
        }

        .navbar-nav {
            gap: 4px;
        }

        .site-header .nav-link {
            font-size: 15px;
            font-weight: 500;
            color: #333;
            padding: 8px 16px !important;
            border-radius: var(--radius-btn);
            position: relative;
            transition: color 0.2s ease;
        }

        .site-header .nav-link:hover {
            color: var(--primary);
            background: rgba(255, 79, 31, 0.04);
        }

        .site-header .nav-link.active {
            color: var(--primary);
            font-weight: 600;
        }

        .site-header .nav-link.active::after {
            content: '';
            position: absolute;
            left: 16px;
            right: 16px;
            bottom: 2px;
            height: 2px;
            border-radius: 2px;
            background: var(--primary);
        }

        .nav-right {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .search-box {
            display: flex;
            align-items: center;
            background: var(--bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-btn);
            height: 38px;
            padding: 0 14px;
            gap: 6px;
            transition: border-color 0.2s ease, box-shadow 0.2s ease;
        }

        .search-box:focus-within {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(255, 79, 31, 0.1);
        }

        .search-box i {
            color: var(--text-muted);
            font-size: 14px;
        }

        .search-box input {
            border: 0;
            background: transparent;
            outline: 0;
            font-size: 13px;
            width: 120px;
            color: var(--text);
        }

        .search-box input::placeholder {
            color: var(--text-muted);
        }

        .btn-enter {
            height: 38px;
            line-height: 1;
            padding: 0 22px;
            font-size: 14px;
        }

        .navbar-toggler {
            border: 0;
            padding: 4px;
            border-radius: 8px;
        }

        .navbar-toggler:focus {
            box-shadow: 0 0 0 3px rgba(255, 79, 31, 0.15);
        }

        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%231F2329' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        }

        /* ============ 分类Hero ============ */
        .category-hero {
            background: linear-gradient(135deg, rgba(23, 25, 29, 0.92), rgba(23, 25, 29, 0.65)), url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
            padding: 100px 0 80px;
            position: relative;
            color: #fff;
        }

        .category-hero .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, 0.12);
            backdrop-filter: blur(6px);
            border: 1px solid rgba(255, 255, 255, 0.2);
            color: #fff;
            font-size: 13px;
            font-weight: 500;
            padding: 6px 16px;
            border-radius: var(--radius-btn);
            margin-bottom: 20px;
        }

        .category-hero .hero-badge i {
            color: var(--primary);
            font-size: 12px;
        }

        .category-hero h1 {
            font-size: clamp(28px, 4vw, 44px);
            font-weight: 700;
            line-height: 1.25;
            margin-bottom: 18px;
            color: #fff;
        }

        .category-hero p {
            font-size: 16px;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.85);
            max-width: 680px;
            margin-bottom: 30px;
        }

        .category-hero .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
        }

        .hero-stats {
            margin-top: 48px;
            display: flex;
            flex-wrap: wrap;
            gap: 0;
            border-top: 1px solid rgba(255, 255, 255, 0.15);
            padding-top: 32px;
        }

        .hero-stats .stat-item {
            flex: 1 1 180px;
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 8px 16px 8px 0;
        }

        .hero-stats .stat-item i {
            width: 36px;
            height: 36px;
            background: var(--primary);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            color: #fff;
            flex-shrink: 0;
        }

        .hero-stats .stat-item .stat-title {
            font-size: 15px;
            font-weight: 600;
            color: #fff;
            line-height: 1.3;
        }

        .hero-stats .stat-item .stat-sub {
            font-size: 13px;
            color: rgba(255, 255, 255, 0.6);
            line-height: 1.3;
        }

        /* ============ 使用流程 ============ */
        .guide-steps {
            background: #fff;
        }

        .step-card {
            height: 100%;
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            padding: 28px 24px;
            background: var(--bg-card);
            box-shadow: var(--shadow-card);
            transition: box-shadow 0.3s ease, transform 0.3s ease, border-color 0.3s ease;
            position: relative;
        }

        .step-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
            border-color: rgba(255, 79, 31, 0.25);
        }

        .step-number {
            width: 44px;
            height: 44px;
            background: var(--primary);
            color: #fff;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: 18px;
            margin-bottom: 18px;
            box-shadow: 0 4px 12px rgba(255, 79, 31, 0.25);
        }

        .step-icon {
            width: 40px;
            height: 40px;
            background: rgba(255, 79, 31, 0.08);
            color: var(--primary);
            border-radius: 10px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            margin-bottom: 14px;
        }

        .step-card h3 {
            font-size: 17px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 10px;
        }

        .step-card p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 0;
        }

        /* ============ 功能亮点 ============ */
        .page-features {
            background: var(--bg);
        }

        .feature-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius-card);
            overflow: hidden;
            height: 100%;
            display: flex;
            flex-direction: column;
            transition: box-shadow 0.3s ease, transform 0.3s ease;
        }

        .feature-card:hover {
            box-shadow: var(--shadow-card-hover);
            transform: translateY(-4px);
        }

        .feature-card .feature-img {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 9;
            background: linear-gradient(135deg, var(--dark), #2a2d33);
        }

        .feature-card .feature-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.4s ease;
        }

        .feature-card:hover .feature-img img {
            transform: scale(1.03);
        }

        .feature-card .feature-img .feature-tag {
            position: absolute;
            left: 12px;
            top: 12px;
            background: rgba(255, 79, 31, 0.9);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: var(--radius-btn);
            z-index: 2;
        }

        .feature-card .feature-body {
            padding: 20px 22px 22px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .feature-card .feature-body h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--text);
            margin-bottom: 8px;
        }

        .feature-card .feature-body p {
            font-size: 14px;
            color: var(--text-secondary);
            line-height: 1.75;
            margin-bottom: 0;
        }

        /* ============ 使用场景 ============ */
        .page-scenarios {
            background: var(--dark);
            color: #fff;
        }

        .page-scenarios .section-head h2 {
            color: #fff;
        }

        .page-scenarios .section-head p {
            color: rgba(255, 255, 255, 0.7);
        }

        .page-scenarios .section-tag {
            background: rgba(255, 79, 31, 0.2);
            color: #ff8a6a;
        }

        .scenario-card {
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            border-radius: var(--radius-card);
            padding: 26px 24px;
            height: 100%;
            display: flex;
            gap: 14px;
            align-items: flex-start;
            transition: background 0.3s ease, border-color 0.3s ease, transform 0.3s ease;
        }

        .scenario-card:hover {
            background: rgba(255, 255, 255, 0.1);
            border-color: rgba(255, 79, 31, 0.4);
            transform: translateY(-3px);
        }

        .scenario-card .scenario-icon {
            width: 44px;
            height: 44px;
            background: var(--primary);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: #fff;
            flex-shrink: 0;
            box-shadow: 0 4px 12px rgba(255, 79, 31, 0.3);
        }

        .scenario-card h3 {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 6px;
        }

        .scenario-card p {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.65);
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* ============ FAQ ============ */
        .page-faq {
            background: #fff;
        }

        .accordion {
            max-width: 860px;
            margin: 0 auto;
        }

        .accordion-item {
            border: 1px solid var(--border);
            border-radius: var(--radius-card) !important;
            background: var(--bg-card);
            box-shadow: var(--shadow-card);
            margin-bottom: 14px;
            overflow: hidden;
        }

        .accordion-button {
            background: #fff;
            color: var(--text);
            font-size: 16px;
            font-weight: 600;
            padding: 18px 22px;
            border: 0;
            line-height: 1.5;
        }

        .accordion-button:not(.collapsed) {
            background: rgba(255, 79, 31, 0.04);
            color: var(--primary);
            box-shadow: none;
        }

        .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(255, 79, 31, 0.12);
            border-color: transparent;
        }

        .accordion-button::after {
            background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%23FF4F1F'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
        }

        .accordion-button:not(.collapsed)::after {
            transform: rotate(180deg);
        }

        .accordion-body {
            padding: 0 22px 20px;
            color: var(--text-secondary);
            font-size: 14px;
            line-height: 1.8;
        }

        /* ============ CTA ============ */
        .page-cta {
            background: linear-gradient(135deg, var(--dark), #2a2d33);
            padding: 90px 0;
            text-align: center;
        }

        .page-cta h2 {
            font-size: clamp(24px, 3vw, 34px);
            font-weight: 700;
            color: #fff;
            margin-bottom: 16px;
        }

        .page-cta p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 16px;
            max-width: 600px;
            margin: 0 auto 36px;
            line-height: 1.8;
        }

        .page-cta .cta-actions {
            display: flex;
            justify-content: center;
            gap: 14px;
            flex-wrap: wrap;
        }

        /* ============ 页脚 ============ */
        .site-footer {
            background: var(--dark);
            color: #CBD5E1;
            padding: 72px 0 0;
            font-size: 14px;
        }

        .site-footer .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 16px;
        }

        .footer-brand-text {
            font-size: 18px;
            font-weight: 700;
            color: #fff;
        }

        .footer-desc {
            color: rgba(255, 255, 255, 0.6);
            font-size: 14px;
            line-height: 1.8;
            margin-bottom: 0;
            max-width: 320px;
        }

        .footer-title {
            font-size: 16px;
            font-weight: 600;
            color: #fff;
            margin-bottom: 18px;
        }

        .footer-links,
        .footer-contact {
            padding: 0;
            margin: 0;
            list-style: none;
        }

        .footer-links li {
            margin-bottom: 10px;
        }

        .footer-links a {
            color: #CBD5E1;
            font-size: 14px;
            transition: color 0.2s ease;
        }

        .footer-links a:hover {
            color: var(--primary);
        }

        .footer-links i {
            font-size: 12px;
            margin-right: 4px;
            color: var(--primary);
        }

        .footer-contact li {
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 10px;
            color: #CBD5E1;
        }

        .footer-contact i {
            color: var(--primary);
            font-size: 14px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            margin-top: 52px;
            padding: 20px 0;
            text-align: center;
            color: rgba(255, 255, 255, 0.4);
            font-size: 13px;
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, 0.5);
        }

        .footer-bottom a:hover {
            color: var(--primary);
        }

        /* ============ 响应式 ============ */
        @media (max-width: 991.98px) {
            .section {
                padding: 60px 0;
            }

            .navbar-nav {
                padding: 12px 0;
                gap: 0;
            }

            .site-header .nav-link.active::after {
                display: none;
            }

            .nav-right {
                flex-direction: row;
                flex-wrap: wrap;
                padding: 12px 0 16px;
            }

            .search-box {
                flex: 1;
                max-width: 260px;
            }
        }

        @media (max-width: 767.98px) {
            .section {
                padding: 48px 0;
            }

            .section-head {
                margin-bottom: 32px;
            }

            .category-hero {
                padding: 72px 0 56px;
            }

            .category-hero .hero-actions {
                flex-direction: column;
                align-items: stretch;
            }

            .category-hero .hero-actions .btn {
                width: 100%;
            }

            .hero-stats {
                gap: 14px;
            }

            .hero-stats .stat-item {
                flex: 1 1 100%;
                padding: 6px 0;
            }

            .step-card {
                padding: 22px 18px;
            }

            .scenario-card {
                padding: 20px 18px;
            }

            .accordion-button {
                font-size: 15px;
                padding: 16px 16px;
            }

            .accordion-body {
                padding: 0 16px 16px;
            }

            .page-cta {
                padding: 60px 0;
            }

            .page-cta .cta-actions {
                flex-direction: column;
                align-items: stretch;
            }

            .page-cta .cta-actions .btn {
                width: 100%;
            }

            .site-footer {
                padding: 48px 0 0;
            }

            .footer-bottom {
                margin-top: 32px;
            }
        }

        @media (max-width: 575.98px) {
            .container {
                padding-left: 16px;
                padding-right: 16px;
            }

            .section-head h2 {
                font-size: 24px;
            }

            .pull-none {
                float: none;
            }
        }