/* roulang page: index */
:root {
    --primary: #e8255a;
    --primary-dark: #c01e4a;
    --primary-light: #fcedf2;
    --secondary: #7b2ff7;
    --secondary-light: #f1ebfe;
    --accent: #ffb03a;
    --bg: #f8f6fa;
    --bg-alt: #ffffff;
    --surface: #ffffff;
    --text: #1c1220;
    --text-light: #6b6470;
    --text-lighter: #9a929e;
    --border: #e9e2ee;
    --border-light: #f1ecf4;
    --radius: 18px;
    --radius-sm: 12px;
    --radius-lg: 26px;
    --shadow-sm: 0 2px 12px rgba(28, 18, 32, .05);
    --shadow-md: 0 6px 24px rgba(28, 18, 32, .09);
    --shadow-lg: 0 18px 48px rgba(28, 18, 32, .12);
    --shadow-primary: 0 8px 24px rgba(232, 37, 90, .24);
    --container: 1200px;
    --header-h: 72px;
    --space-section: clamp(56px, 8vw, 108px);
    --font: -apple-system, BlinkMacSystemFont, "SF Pro SC", "PingFang SC", "Segoe UI", Roboto, "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
}

*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font);
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    font-size: 16px;
    overflow-x: hidden;
}

a {
    text-decoration: none;
    color: inherit;
    transition: color .25s ease;
}

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

button,
input {
    font-family: inherit;
    font-size: inherit;
}

ul,
ol {
    list-style: none;
}

.container {
    max-width: var(--container);
    margin: 0 auto;
    padding-left: 24px;
    padding-right: 24px;
}

.py-section {
    padding-top: var(--space-section);
    padding-bottom: var(--space-section);
}

/* ===== Header ===== */
.header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background: rgba(255,255,255, .86);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-light);
    height: var(--header-h);
}

.header .container {
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.35rem;
    font-weight: 800;
    letter-spacing: .5px;
    color: var(--text);
    line-height: 1.2;
}

.logo .logo-mark {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 18px;
    flex-shrink: 0;
    box-shadow: 0 4px 12px rgba(232,37,90,.3);
}

.logo .logo-text {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav a {
    padding: 9px 20px;
    border-radius: 999px;
    font-weight: 600;
    font-size: .95rem;
    color: var(--text-light);
    transition: all .25s ease;
}

.nav a:hover {
    background: var(--primary-light);
    color: var(--primary);
}

.nav a.active {
    background: var(--primary);
    color: #fff;
    box-shadow: var(--shadow-primary);
}

.nav-toggle {
    display: none;
    background: none;
    border: 1px solid var(--border);
    border-radius: 10px;
    width: 42px;
    height: 42px;
    font-size: 20px;
    cursor: pointer;
    padding: 0;
    line-height: 1;
    color: var(--text);
    align-items: center;
    justify-content: center;
    transition: all .2s ease;
}

.nav-toggle:hover {
    background: var(--primary-light);
    color: var(--primary);
    border-color: var(--primary);
}

.nav-toggle.active {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

/* ===== Hero ===== */
.hero {
    position: relative;
    padding: clamp(60px, 8vw, 110px) 0;
    background: linear-gradient(135deg, rgba(28,18,32,.82), rgba(120,30,80,.68)), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
    color: #fff;
    overflow: hidden;
}

.hero::after {
    content: "";
    position: absolute;
    inset: auto 0 0 0;
    height: 80px;
    background: linear-gradient(180deg, transparent, var(--bg));
    pointer-events: none;
}

.hero .container {
    position: relative;
    z-index: 2;
    max-width: 900px;
    text-align: center;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: rgba(255,255,255,.14);
    border: 1px solid rgba(255,255,255,.24);
    border-radius: 999px;
    padding: 7px 18px;
    font-size: .88rem;
    font-weight: 600;
    letter-spacing: .3px;
    color: rgba(255,255,255,.95);
    margin-bottom: 28px;
    backdrop-filter: blur(6px);
}

.hero-badge .dot {
    width: 7px;
    height: 7px;
    background: var(--accent);
    border-radius: 50%;
    animation: pulse-dot 1.6s infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: .5; transform: scale(.8); }
}

.hero h1 {
    font-size: clamp(2.1rem, 4.6vw, 3.6rem);
    font-weight: 900;
    line-height: 1.22;
    letter-spacing: 1px;
    margin-bottom: 20px;
    text-shadow: 0 4px 22px rgba(0,0,0,.3);
}

.hero h1 span {
    background: linear-gradient(90deg, var(--accent), #ffd6a0);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    display: inline-block;
}

.hero-sub {
    font-size: clamp(1rem, 1.4vw, 1.18rem);
    color: rgba(255,255,255,.85);
    max-width: 680px;
    margin: 0 auto 36px;
    line-height: 1.75;
}

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

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 13px 32px;
    border-radius: 999px;
    font-weight: 700;
    font-size: 1rem;
    transition: all .28s ease;
    cursor: pointer;
    border: none;
    background: none;
    line-height: 1.4;
}

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

.btn-primary:hover {
    transform: translateY(-3px);
    background: var(--primary-dark);
    box-shadow: 0 14px 32px rgba(232,37,90,.35);
}

.btn-ghost {
    background: rgba(255,255,255,.12);
    color: #fff;
    border: 1.5px solid rgba(255,255,255,.35);
    backdrop-filter: blur(8px);
}

.btn-ghost:hover {
    background: rgba(255,255,255,.22);
    border-color: #fff;
    transform: translateY(-3px);
}

.btn-lg {
    padding: 16px 42px;
    font-size: 1.05rem;
}

.hero-meta {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 28px;
    margin-top: 46px;
    color: rgba(255,255,255,.75);
    font-size: .9rem;
}

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

.hero-meta svg {
    width: 16px;
    height: 16px;
}

/* ===== Section Head ===== */
.sec-head {
    text-align: center;
    max-width: 720px;
    margin: 0 auto clamp(34px, 4vw, 52px);
}

.sec-head .eyebrow {
    display: inline-block;
    font-size: .82rem;
    font-weight: 700;
    letter-spacing: 1.6px;
    text-transform: uppercase;
    color: var(--primary);
    background: var(--primary-light);
    padding: 6px 16px;
    border-radius: 999px;
    margin-bottom: 14px;
}

.sec-head h2 {
    font-size: clamp(1.7rem, 3vw, 2.4rem);
    font-weight: 800;
    line-height: 1.3;
    letter-spacing: -.3px;
    margin-bottom: 12px;
}

.sec-head p {
    color: var(--text-light);
    font-size: 1.02rem;
    line-height: 1.7;
}

.sec-head.left {
    text-align: left;
    margin-left: 0;
}

/* ===== Feature Cards ===== */
.feature-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
}

.feature-card {
    background: var(--surface);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: 38px 30px;
    transition: all .35s ease;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    opacity: 0;
    transition: opacity .3s ease;
}

.feature-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-md);
    border-color: transparent;
}

.feature-card:hover::before {
    opacity: 1;
}

.feature-card .icon {
    width: 56px;
    height: 56px;
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 26px;
    margin-bottom: 20px;
    background: var(--primary-light);
    color: var(--primary);
}

.feature-card:nth-child(2) .icon {
    background: var(--secondary-light);
    color: var(--secondary);
}

.feature-card:nth-child(3) .icon {
    background: #fff3e0;
    color: #e8810a;
}

.feature-card h3 {
    font-size: 1.18rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.feature-card p {
    color: var(--text-light);
    font-size: .93rem;
    line-height: 1.7;
}

/* ===== Highlight / Showcase ===== */
.highlight {
    background: linear-gradient(135deg, #fff 0%, var(--primary-light) 60%, var(--secondary-light) 100%);
    border-radius: var(--radius-lg);
    padding: clamp(30px, 5vw, 64px);
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 48px;
    align-items: center;
    overflow: hidden;
    position: relative;
}

.highlight-media {
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    position: relative;
}

.highlight-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    aspect-ratio: 4 / 3.2;
}

.highlight-media .play-btn {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(20, 10, 20, .3);
    transition: background .3s ease;
}

.highlight-media .play-btn .circle {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    background: rgba(255,255,255,.9);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    color: var(--primary);
    box-shadow: 0 8px 24px rgba(0,0,0,.2);
    transition: transform .3s ease;
}

.highlight-media:hover .play-btn .circle {
    transform: scale(1.1);
}

.highlight-content .tag {
    display: inline-block;
    background: #fff;
    padding: 6px 14px;
    border-radius: 999px;
    font-size: .82rem;
    font-weight: 700;
    color: var(--primary);
    box-shadow: var(--shadow-sm);
    margin-bottom: 18px;
}

.highlight-content h2 {
    font-size: clamp(1.5rem, 2.4vw, 2rem);
    font-weight: 800;
    margin-bottom: 16px;
    line-height: 1.35;
}

.highlight-content p {
    color: var(--text-light);
    margin-bottom: 24px;
    line-height: 1.8;
    font-size: .98rem;
}

.highlight-list {
    display: grid;
    gap: 12px;
    margin-bottom: 28px;
}

.highlight-list li {
    display: flex;
    gap: 12px;
    align-items: flex-start;
    font-size: .96rem;
    color: var(--text);
    background: rgba(255,255,255,.65);
    border-radius: 14px;
    padding: 12px 16px;
    border: 1px solid rgba(255,255,255,.7);
}

.highlight-list li svg {
    flex-shrink: 0;
    width: 20px;
    height: 20px;
    color: var(--primary);
    margin-top: 3px;
}

.highlight-list li span {
    color: var(--text-light);
    font-size: .92rem;
    margin-left: 4px;
}

/* ===== Latest CMS List ===== */
.latest-section {
    background: var(--bg-alt);
}

.section-header-row {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 20px;
    margin-bottom: clamp(30px, 4vw, 44px);
    flex-wrap: wrap;
}

.section-header-row .sec-head {
    margin: 0;
    text-align: left;
    max-width: 560px;
}

.list-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 22px;
}

.cms-card {
    display: flex;
    gap: 18px;
    background: var(--surface);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    padding: 16px;
    transition: all .3s ease;
}

.cms-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
    border-color: transparent;
}

.cms-card .thumb {
    width: 168px;
    height: 118px;
    border-radius: var(--radius-sm);
    overflow: hidden;
    flex-shrink: 0;
    background: var(--primary-light);
}

.cms-card .thumb img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.cms-card .info {
    display: flex;
    flex-direction: column;
    justify-content: center;
    min-width: 0;
    flex: 1;
}

.cms-card .cate {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-size: .78rem;
    color: var(--text-light);
    margin-bottom: 6px;
}

.cms-card .cate .badge {
    background: var(--primary-light);
    color: var(--primary);
    font-weight: 700;
    padding: 3px 10px;
    border-radius: 999px;
    font-size: .75rem;
}

.cms-card h3 {
    font-size: 1rem;
    font-weight: 700;
    line-height: 1.45;
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.cms-card h3 a:hover {
    color: var(--primary);
}

.cms-card .desc {
    font-size: .84rem;
    color: var(--text-light);
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    margin-bottom: 8px;
    line-height: 1.6;
}

.cms-card .time {
    font-size: .78rem;
    color: var(--text-lighter);
    display: flex;
    align-items: center;
    gap: 6px;
}

.cms-empty {
    grid-column: 1 / -1;
    text-align: center;
    padding: 56px 24px;
    background: var(--surface);
    border: 1px dashed var(--border);
    border-radius: var(--radius-lg);
    color: var(--text-light);
    font-size: .98rem;
}

/* ===== Category Preview ===== */
.cat-preview {
    background: var(--bg);
}

.cat-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
}

.cat-card {
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--surface);
    border: 1px solid var(--border-light);
    transition: all .35s ease;
    display: block;
    position: relative;
}

.cat-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-md);
    border-color: transparent;
}

.cat-card .media {
    height: 220px;
    overflow: hidden;
    position: relative;
}

.cat-card .media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .5s ease;
}

.cat-card:hover .media img {
    transform: scale(1.06);
}

.cat-card .media::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 55%, rgba(20,10,20,.55));
}

.cat-card .tag {
    position: absolute;
    top: 18px;
    left: 18px;
    z-index: 2;
    background: rgba(255,255,255,.95);
    color: var(--primary);
    font-size: .78rem;
    font-weight: 700;
    padding: 6px 14px;
    border-radius: 999px;
    backdrop-filter: blur(4px);
}

.cat-card .body {
    padding: 24px;
    text-align: center;
}

.cat-card .body h3 {
    font-size: 1.25rem;
    font-weight: 800;
    margin-bottom: 8px;
}

.cat-card .body p {
    color: var(--text-light);
    font-size: .92rem;
    margin-bottom: 16px;
    line-height: 1.6;
}

.cat-card .link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--primary);
    font-size: .92rem;
    font-weight: 700;
    transition: gap .2s ease;
}

.cat-card:hover .link {
    gap: 12px;
}

/* ===== Stats / Social Proof ===== */
.proof {
    background: linear-gradient(135deg, var(--text) 0%, #3c2130 100%);
    color: #fff;
    padding: var(--space-section) 0;
    position: relative;
    overflow: hidden;
}

.proof::before {
    content: "";
    position: absolute;
    inset: 0;
    background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
    opacity: .22;
}

.proof .container {
    position: relative;
    z-index: 2;
}

.proof .sec-head h2 {
    color: #fff;
}

.proof .sec-head p {
    color: rgba(255,255,255,.75);
}

.proof .sec-head .eyebrow {
    background: rgba(255,255,255,.14);
    color: #ffd3e2;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-top: 44px;
}

.stat-item {
    text-align: center;
    background: rgba(255,255,255,.08);
    border: 1px solid rgba(255,255,255,.1);
    border-radius: var(--radius-lg);
    padding: 32px 12px;
    backdrop-filter: blur(10px);
    transition: all .3s ease;
}

.stat-item:hover {
    background: rgba(255,255,255,.14);
    transform: translateY(-4px);
}

.stat-item .num {
    font-size: 2.4rem;
    font-weight: 900;
    background: linear-gradient(90deg, #ffd6a0, var(--accent));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 6px;
    line-height: 1.2;
}

.stat-item .label {
    font-size: .88rem;
    color: rgba(255,255,255,.75);
}

.testimonials {
    margin-top: 54px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 22px;
}

.testimonial {
    background: rgba(255,255,255,.09);
    border: 1px solid rgba(255,255,255,.1);
    border-radius: var(--radius-lg);
    padding: 26px 24px;
}

.testimonial .stars {
    color: var(--accent);
    font-size: .85rem;
    letter-spacing: 3px;
    margin-bottom: 12px;
}

.testimonial .quote {
    font-size: .9rem;
    line-height: 1.75;
    color: rgba(255,255,255,.85);
    margin-bottom: 16px;
}

.testimonial .author {
    font-size: .85rem;
    font-weight: 600;
    color: rgba(255,255,255,.6);
    display: flex;
    align-items: center;
    gap: 8px;
}

.testimonial .author::before {
    content: "";
    width: 24px;
    height: 2px;
    background: var(--accent);
    border-radius: 2px;
}

/* ===== FAQ ===== */
.faq-wrap {
    max-width: 820px;
    margin: 0 auto;
}

.faq-item {
    background: var(--surface);
    border: 1px solid var(--border-light);
    border-radius: var(--radius-lg);
    margin-bottom: 14px;
    overflow: hidden;
    transition: all .3s ease;
}

.faq-item.active {
    box-shadow: var(--shadow-md);
    border-color: var(--primary);
}

.faq-q {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 22px 26px;
    background: none;
    border: none;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 700;
    color: var(--text);
    text-align: left;
    transition: color .2s ease;
}

.faq-q:hover {
    color: var(--primary);
}

.faq-q .arrow {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--primary-light);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    flex-shrink: 0;
    transition: all .4s cubic-bezier(.4, 0, .2, 1);
    color: var(--primary);
}

.faq-item.active .faq-q .arrow {
    transform: rotate(180deg);
    background: var(--primary);
    color: #fff;
}

.faq-a {
    max-height: 0;
    overflow: hidden;
    transition: max-height .45s cubic-bezier(.4, 0, .2, 1);
}

.faq-a-inner {
    padding: 0 26px 24px;
    color: var(--text-light);
    font-size: .94rem;
    line-height: 1.75;
}

/* ===== CTA ===== */
.cta {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    border-radius: var(--radius-lg);
    text-align: center;
    padding: clamp(40px, 6vw, 70px) clamp(24px, 4vw, 56px);
    color: #fff;
    position: relative;
    overflow: hidden;
}

.cta::before {
    content: "";
    position: absolute;
    top: -40px;
    right: -40px;
    width: 200px;
    height: 200px;
    border-radius: 50%;
    background: rgba(255,255,255,.1);
}

.cta::after {
    content: "";
    position: absolute;
    bottom: -60px;
    left: -20px;
    width: 160px;
    height: 160px;
    border-radius: 50%;
    background: rgba(255,255,255,.07);
}

.cta h2 {
    font-size: clamp(1.6rem, 2.6vw, 2.2rem);
    font-weight: 800;
    margin-bottom: 14px;
    position: relative;
    z-index: 2;
}

.cta p {
    color: rgba(255,255,255,.85);
    max-width: 560px;
    margin: 0 auto 28px;
    font-size: 1.02rem;
    position: relative;
    z-index: 2;
}

.cta .btn-white {
    background: #fff;
    color: var(--primary);
    box-shadow: 0 8px 28px rgba(0,0,0,.15);
    position: relative;
    z-index: 2;
}

.cta .btn-white:hover {
    transform: translateY(-3px);
    box-shadow: 0 14px 34px rgba(0,0,0,.2);
}

.cta-note {
    margin-top: 16px;
    font-size: .8rem;
    color: rgba(255,255,255,.6);
    position: relative;
    z-index: 2;
}

/* ===== Footer ===== */
.footer {
    background: #19111e;
    color: #a99aa8;
    padding-top: 64px;
    padding-bottom: 28px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr;
    gap: 44px;
    margin-bottom: 44px;
}

.footer .logo {
    color: #fff;
    margin-bottom: 14px;
}

.footer .logo .logo-text {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.footer-about p {
    font-size: .9rem;
    line-height: 1.75;
    color: #a99aa8;
    max-width: 320px;
}

.footer h4 {
    color: #fff;
    font-size: .95rem;
    font-weight: 700;
    margin-bottom: 16px;
    letter-spacing: .5px;
}

.footer-links {
    display: grid;
    gap: 10px;
}

.footer-links a {
    color: #a99aa8;
    font-size: .9rem;
    transition: color .2s ease, padding-left .2s ease;
}

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

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,.08);
    padding-top: 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    flex-wrap: wrap;
    font-size: .82rem;
    color: #7d7180;
}

.footer-bottom a {
    color: #7d7180;
}

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

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .feature-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .highlight {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .testimonials {
        grid-template-columns: repeat(2, 1fr);
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 768px) {
    :root {
        --header-h: 64px;
    }

    .nav-toggle {
        display: flex;
    }

    .nav {
        position: fixed;
        top: var(--header-h);
        left: 0;
        right: 0;
        background: #fff;
        flex-direction: column;
        padding: 12px 20px 20px;
        gap: 4px;
        border-bottom: 1px solid var(--border-light);
        box-shadow: var(--shadow-md);
        transform: translateY(-110%);
        opacity: 0;
        pointer-events: none;
        transition: all .35s ease;
        z-index: 999;
    }

    .nav.open {
        transform: translateY(0);
        opacity: 1;
        pointer-events: auto;
    }

    .nav a {
        width: 100%;
        text-align: center;
        padding: 13px 20px;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .feature-grid {
        grid-template-columns: 1fr;
    }

    .list-grid,
    .cat-grid {
        grid-template-columns: 1fr;
    }

    .cms-card {
        flex-direction: column;
    }

    .cms-card .thumb {
        width: 100%;
        height: 170px;
    }

    .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 14px;
    }

    .testimonials {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .hero-meta {
        gap: 16px;
        flex-direction: column;
        align-items: center;
    }
}

@media (max-width: 520px) {
    .container {
        padding-left: 18px;
        padding-right: 18px;
    }

    .hero h1 {
        font-size: 1.7rem;
    }

    .hero-sub {
        font-size: .95rem;
    }

    .btn-lg {
        width: 100%;
    }

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

    .stats-grid {
        grid-template-columns: 1fr;
    }

    .section-header-row {
        flex-direction: column;
        align-items: flex-start;
    }

    .section-header-row .btn {
        width: 100%;
    }

    .highlight-content h2 {
        font-size: 1.4rem;
    }

    .faq-q {
        padding: 18px;
        font-size: .9rem;
    }

    .faq-a-inner {
        padding: 0 18px 18px;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

/* roulang page: category1 */
:root {
    --c-primary: #e6337f;
    --c-primary-dark: #c21f63;
    --c-secondary: #7c3aed;
    --c-bg: #0f0e13;
    --c-bg-soft: #17151e;
    --c-bg-card: #1e1a26;
    --c-text: #f5f0f6;
    --c-text-weak: #a99fad;
    --c-border: rgba(255, 255, 255, 0.08);
    --c-btn-text: #ffffff;
    --r-lg: 18px;
    --r-md: 12px;
    --r-sm: 8px;
    --shadow-1: 0 8px 30px rgba(0, 0, 0, 0.35);
    --shadow-2: 0 4px 20px rgba(230, 51, 127, 0.15);
    --sp-1: 8px;
    --sp-2: 16px;
    --sp-3: 24px;
    --sp-4: 40px;
    --sp-5: 64px;
    --sp-6: 96px;
    --ff-base: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", system-ui, -apple-system, sans-serif;
    --ff-logo: "Segoe UI Emoji", "PingFang SC", "Microsoft YaHei", sans-serif;
}

*, ::before, ::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--ff-base);
    background: var(--c-bg);
    color: var(--c-text);
    line-height: 1.75;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

img {
    max-width: 100%;
    display: block;
    border: 0;
}

a {
    color: inherit;
    text-decoration: none;
    transition: color 0.25s ease;
}

ul, ol {
    list-style: none;
}

button, input {
    font-family: inherit;
    border: none;
    outline: none;
    background: none;
}

.container {
    width: 100%;
    max-width: 1240px;
    margin: 0 auto;
    padding: 0 24px;
}

.header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(15, 14, 19, 0.9);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--c-border);
}

.header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}

.logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}

.logo-mark {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: linear-gradient(135deg, var(--c-primary), var(--c-secondary));
    border-radius: 10px;
    font-size: 18px;
    color: #fff;
    box-shadow: 0 4px 16px rgba(230, 51, 127, 0.35);
}

.logo-text {
    font-size: 22px;
    font-weight: 700;
    letter-spacing: 0.5px;
    background: linear-gradient(90deg, #fff, #e0b0c8);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    white-space: nowrap;
}

.nav {
    display: flex;
    align-items: center;
    gap: 8px;
}

.nav a {
    display: inline-block;
    padding: 8px 18px;
    font-size: 15px;
    font-weight: 500;
    color: var(--c-text-weak);
    border-radius: 999px;
    transition: all 0.3s ease;
}

.nav a:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.06);
}

.nav a.active {
    color: #fff;
    background: linear-gradient(135deg, var(--c-primary), var(--c-secondary));
    box-shadow: 0 4px 14px rgba(230, 51, 127, 0.3);
}

.nav-toggle {
    display: none;
    width: 42px;
    height: 42px;
    align-items: center;
    justify-content: center;
    border-radius: 10px;
    font-size: 22px;
    color: #fff;
    background: rgba(255, 255, 255, 0.06);
    cursor: pointer;
    transition: background 0.3s ease;
}

.nav-toggle:hover {
    background: rgba(255, 255, 255, 0.12);
}

.hero {
    position: relative;
    padding: var(--sp-6) 0 var(--sp-5);
    background: linear-gradient(180deg, rgba(15,14,19,0.1), var(--c-bg)), url('/assets/images/backpic/back-1.webp') center center / cover no-repeat;
    isolation: isolate;
}

.hero::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: -1;
    background: radial-gradient(ellipse at top right, rgba(230, 51, 127, 0.25), transparent 60%), radial-gradient(ellipse at bottom left, rgba(124, 58, 237, 0.2), transparent 60%);
}

.hero-inner {
    max-width: 780px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 16px;
    background: rgba(230, 51, 127, 0.15);
    border: 1px solid rgba(230, 51, 127, 0.35);
    border-radius: 999px;
    font-size: 13px;
    font-weight: 500;
    color: #f9a8c9;
    margin-bottom: 20px;
}

.hero h1 {
    font-size: 52px;
    line-height: 1.15;
    font-weight: 800;
    letter-spacing: 1px;
    margin-bottom: 18px;
    text-shadow: 0 2px 20px rgba(0,0,0,0.4);
}

.hero h1 span {
    background: linear-gradient(135deg, #ff7ab0, #b78bff);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-sub {
    font-size: 17px;
    color: rgba(245, 240, 246, 0.9);
    margin-bottom: 32px;
    line-height: 1.8;
    max-width: 640px;
}

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

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 14px 32px;
    font-size: 15px;
    font-weight: 600;
    border-radius: 999px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.btn-primary {
    background: linear-gradient(135deg, var(--c-primary), var(--c-secondary));
    color: var(--c-btn-text);
    box-shadow: 0 6px 24px rgba(230, 51, 127, 0.35);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 32px rgba(230, 51, 127, 0.5);
}

.btn-ghost {
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.18);
    backdrop-filter: blur(8px);
}

.btn-ghost:hover {
    background: rgba(255, 255, 255, 0.14);
    transform: translateY(-2px);
}

.section {
    padding: var(--sp-6) 0;
}

.section-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 24px;
    margin-bottom: var(--sp-4);
    flex-wrap: wrap;
}

.section-head h2 {
    font-size: 34px;
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: 0.5px;
}

.section-head p {
    color: var(--c-text-weak);
    font-size: 15px;
    max-width: 500px;
}

.head-line {
    display: flex;
    align-items: center;
    gap: 12px;
}

.head-line::before {
    content: "";
    width: 4px;
    height: 26px;
    background: linear-gradient(180deg, var(--c-primary), var(--c-secondary));
    border-radius: 4px;
}

.tag-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 18px;
}

.tag-item {
    display: inline-block;
    padding: 8px 18px;
    font-size: 13px;
    font-weight: 500;
    color: var(--c-text-weak);
    background: var(--c-bg-card);
    border: 1px solid var(--c-border);
    border-radius: 999px;
    transition: all 0.3s ease;
    cursor: default;
}

.tag-item:hover {
    color: #fff;
    border-color: rgba(230, 51, 127, 0.5);
    background: rgba(230, 51, 127, 0.1);
}

.tag-item.hot {
    color: #f9a8c9;
    border-color: rgba(230, 51, 127, 0.4);
    background: rgba(230, 51, 127, 0.12);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.feature-card {
    background: var(--c-bg-card);
    border: 1px solid var(--c-border);
    border-radius: var(--r-lg);
    padding: 32px 28px;
    transition: all 0.35s ease;
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--c-primary), var(--c-secondary));
    opacity: 0;
    transition: opacity 0.35s ease;
}

.feature-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-1);
    border-color: rgba(230, 51, 127, 0.25);
}

.feature-card:hover::before {
    opacity: 1;
}

.feature-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 52px;
    height: 52px;
    font-size: 24px;
    border-radius: 14px;
    background: rgba(230, 51, 127, 0.15);
    margin-bottom: 18px;
}

.feature-card h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 10px;
}

.feature-card p {
    color: var(--c-text-weak);
    font-size: 14px;
    line-height: 1.75;
}

.showcase {
    background: var(--c-bg-soft);
    border-top: 1px solid var(--c-border);
    border-bottom: 1px solid var(--c-border);
}

.showcase-grid {
    display: grid;
    grid-template-columns: 1.1fr 1fr;
    gap: 48px;
    align-items: center;
}

.showcase-image {
    position: relative;
    border-radius: var(--r-lg);
    overflow: hidden;
    box-shadow: var(--shadow-1);
}

.showcase-image img {
    width: 100%;
    height: 400px;
    object-fit: cover;
}

.showcase-image::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 60%, rgba(0,0,0,0.5));
}

.showcase-content h2 {
    font-size: 36px;
    font-weight: 800;
    line-height: 1.2;
    margin-bottom: 14px;
}

.showcase-content p {
    color: var(--c-text-weak);
    margin-bottom: 16px;
    line-height: 1.8;
}

.check-list {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-top: 24px;
}

.check-list li {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 15px;
    color: #dcd1e0;
}

.check-list li::before {
    content: "✓";
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 22px;
    height: 22px;
    flex-shrink: 0;
    background: linear-gradient(135deg, var(--c-primary), var(--c-secondary));
    border-radius: 50%;
    font-size: 12px;
    font-weight: 700;
    color: #fff;
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.video-card {
    background: var(--c-bg-card);
    border: 1px solid var(--c-border);
    border-radius: var(--r-lg);
    overflow: hidden;
    transition: all 0.35s ease;
}

.video-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-1);
    border-color: rgba(230, 51, 127, 0.3);
}

.video-card .card-cover {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16 / 9;
}

.video-card .card-cover img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.video-card:hover .card-cover img {
    transform: scale(1.06);
}

.card-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 50%, rgba(0,0,0,0.75));
    display: flex;
    align-items: flex-end;
    padding: 18px;
}

.video-duration {
    display: inline-block;
    padding: 4px 12px;
    background: rgba(0,0,0,0.7);
    border-radius: 6px;
    font-size: 12px;
    font-weight: 600;
    color: #fff;
    backdrop-filter: blur(4px);
}

.video-card .card-body {
    padding: 20px;
}

.video-card .card-body h3 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 8px;
    line-height: 1.4;
}

.video-card .card-body p {
    font-size: 14px;
    color: var(--c-text-weak);
    line-height: 1.65;
}

.card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 14px;
}

.card-tags span {
    display: inline-block;
    padding: 3px 12px;
    font-size: 12px;
    border-radius: 999px;
    background: rgba(124, 58, 237, 0.12);
    border: 1px solid rgba(124, 58, 237, 0.25);
    color: #c4a7f0;
}

.scene-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

.scene-item {
    text-align: center;
    padding: 30px 18px;
    background: var(--c-bg-card);
    border: 1px solid var(--c-border);
    border-radius: var(--r-lg);
    transition: all 0.3s ease;
}

.scene-item:hover {
    transform: translateY(-4px);
    border-color: rgba(230, 51, 127, 0.35);
    box-shadow: var(--shadow-2);
}

.scene-icon {
    font-size: 36px;
    margin-bottom: 14px;
    display: block;
}

.scene-item h3 {
    font-size: 17px;
    margin-bottom: 6px;
}

.scene-item p {
    font-size: 13px;
    color: var(--c-text-weak);
    line-height: 1.6;
}

.stats-section {
    background: linear-gradient(135deg, rgba(230, 51, 127, 0.1), rgba(124, 58, 237, 0.08));
    border-top: 1px solid var(--c-border);
    border-bottom: 1px solid var(--c-border);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.stat-block {
    text-align: center;
    padding: 36px 16px;
}

.stat-number {
    font-size: 40px;
    font-weight: 800;
    background: linear-gradient(135deg, #ff7ab0, #b78bff);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    line-height: 1.2;
}

.stat-label {
    margin-top: 8px;
    font-size: 14px;
    color: var(--c-text-weak);
}

.faq-section {
    background: var(--c-bg-soft);
}

.faq-wrap {
    max-width: 880px;
    margin: 0 auto;
}

.faq-item {
    background: var(--c-bg-card);
    border: 1px solid var(--c-border);
    border-radius: var(--r-md);
    margin-bottom: 14px;
    overflow: hidden;
    transition: border-color 0.3s ease;
}

.faq-item summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 22px 24px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    list-style: none;
    transition: background 0.3s ease;
}

.faq-item summary::-webkit-details-marker {
    display: none;
}

.faq-item summary::after {
    content: "+";
    font-size: 22px;
    font-weight: 400;
    color: var(--c-primary);
    transition: transform 0.3s ease;
    flex-shrink: 0;
}

.faq-item[open] summary::after {
    transform: rotate(45deg);
}

.faq-item[open] {
    border-color: rgba(230, 51, 127, 0.35);
}

.faq-item .faq-content {
    padding: 0 24px 22px;
    color: var(--c-text-weak);
    font-size: 14px;
    line-height: 1.8;
}

.cta-section {
    position: relative;
    background: url('/assets/images/backpic/back-3.webp') center center / cover no-repeat;
    isolation: isolate;
}

.cta-section::before {
    content: "";
    position: absolute;
    inset: 0;
    background: rgba(15, 14, 19, 0.82);
    z-index: -1;
}

.cta-box {
    text-align: center;
    padding: var(--sp-6) 0;
}

.cta-box h2 {
    font-size: 38px;
    font-weight: 800;
    margin-bottom: 14px;
}

.cta-box p {
    font-size: 16px;
    color: var(--c-text-weak);
    max-width: 560px;
    margin: 0 auto 30px;
    line-height: 1.8;
}

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

.footer {
    background: #0a090d;
    border-top: 1px solid var(--c-border);
    padding: 56px 0 24px;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr;
    gap: 40px;
    margin-bottom: 36px;
}

.footer-about p {
    color: var(--c-text-weak);
    font-size: 14px;
    margin-top: 14px;
    line-height: 1.8;
    max-width: 360px;
}

.footer h4 {
    font-size: 14px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: #fff;
    margin-bottom: 18px;
}

.footer-links {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-links a {
    display: inline-block;
    color: var(--c-text-weak);
    font-size: 14px;
    transition: all 0.3s ease;
}

.footer-links a:hover {
    color: #fff;
    transform: translateX(4px);
}

.footer-bottom {
    padding-top: 24px;
    border-top: 1px solid var(--c-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 12px;
    flex-wrap: wrap;
    font-size: 13px;
    color: var(--c-text-weak);
}

.footer-bottom a {
    color: var(--c-text-weak);
}

.footer-bottom a:hover {
    color: #fff;
}

@media (max-width: 1024px) {
    .features-grid,
    .cards-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .showcase-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .scene-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .container {
        padding: 0 18px;
    }

    .nav {
        display: none;
        position: absolute;
        top: 72px;
        left: 0;
        right: 0;
        background: rgba(15, 14, 19, 0.97);
        backdrop-filter: blur(20px);
        border-bottom: 1px solid var(--c-border);
        padding: 16px 20px;
        flex-direction: column;
        align-items: stretch;
        gap: 4px;
    }

    .nav.show {
        display: flex;
    }

    .nav a {
        padding: 14px 18px;
        border-radius: var(--r-md);
        font-size: 16px;
    }

    .nav-toggle {
        display: inline-flex;
    }

    .hero {
        padding: var(--sp-5) 0 var(--sp-4);
    }

    .hero h1 {
        font-size: 34px;
    }

    .hero-sub {
        font-size: 15px;
    }

    .section {
        padding: var(--sp-5) 0;
    }

    .section-head {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
    }

    .section-head h2 {
        font-size: 28px;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 28px;
    }
}

@media (max-width: 520px) {
    .features-grid,
    .cards-grid,
    .scene-grid,
    .stats-grid,
    .check-list {
        grid-template-columns: 1fr;
    }

    .hero h1 {
        font-size: 28px;
    }

    .hero-actions {
        flex-direction: column;
    }

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

    .cta-actions {
        flex-direction: column;
    }

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

    .showcase-image img {
        height: 260px;
    }

    .footer-bottom {
        flex-direction: column;
        text-align: center;
    }
}

/* roulang page: article */
:root{
  --bg:#070b14;
  --bg-soft:#0b1120;
  --surface:#101827;
  --surface-2:#182234;
  --border:rgba(255,255,255,.08);
  --text:#f1f5f9;
  --muted:#9aa8bf;
  --primary:#ff2d55;
  --primary-strong:#f43f5e;
  --gold:#fbbf24;
  --radius:18px;
  --radius-sm:10px;
  --shadow:0 24px 60px rgba(0,0,0,.36);
  --shadow-sm:0 10px 30px rgba(0,0,0,.22);
  --transition:.25s cubic-bezier(.2,.7,.3,1);
  --container:1200px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.7;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none;transition:color var(--transition)}
a:focus-visible{outline:3px solid rgba(255,45,85,.55);outline-offset:3px;border-radius:6px}
img{max-width:100%;display:block}
button{font-family:inherit;cursor:pointer;border:none;background:none}
.container{width:min(var(--container),92%);margin:0 auto}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 26px;border-radius:999px;font-weight:600;font-size:15px;line-height:1;
  border:1px solid transparent;transition:all var(--transition);
}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),#f43f5e);color:#fff;
  box-shadow:0 10px 26px rgba(255,45,85,.28);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 18px 40px rgba(255,45,85,.38);filter:brightness(1.06)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-ghost{border-color:rgba(255,255,255,.22);color:#fff;background:rgba(255,255,255,.04)}
.btn-ghost:hover{border-color:rgba(255,255,255,.45);background:rgba(255,255,255,.08)}
.btn-ghost:focus-visible,.btn-primary:focus-visible{outline:3px solid rgba(255,45,85,.5);outline-offset:3px}
.badge{
  display:inline-flex;align-items:center;padding:6px 14px;border-radius:999px;
  background:rgba(255,45,85,.14);color:#ff6b81;font-size:13px;font-weight:600;
  border:1px solid rgba(255,45,85,.28);
}
.section-head{margin-bottom:34px}
.section-label{color:var(--primary);font-weight:700;letter-spacing:2px;font-size:13px;text-transform:uppercase}
.section-title{font-size:clamp(24px,3.2vw,34px);line-height:1.3;margin-top:10px}
.section-desc{color:var(--muted);max-width:640px;margin-top:10px;font-size:15px}
.header{
  position:sticky;top:0;z-index:50;
  background:rgba(7,11,20,.82);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border);
}
.header .container{display:flex;align-items:center;justify-content:space-between;height:70px}
.logo{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:20px;letter-spacing:.5px}
.logo-mark{
  display:inline-flex;width:36px;height:36px;border-radius:12px;
  background:linear-gradient(135deg,var(--primary),#d946ef);
  align-items:center;justify-content:center;font-size:17px;
  box-shadow:0 8px 20px rgba(255,45,85,.3);
}
.logo-text{color:#fff;white-space:nowrap}
.nav{display:flex;align-items:center;gap:8px}
.nav a{
  position:relative;padding:9px 16px;border-radius:999px;
  color:var(--muted);font-weight:500;font-size:14px;
}
.nav a:hover{color:#fff;background:rgba(255,255,255,.06)}
.nav a.active{color:#fff;background:rgba(255,45,85,.15)}
.nav a.active::after{
  content:"";position:absolute;left:18px;right:18px;bottom:5px;
  height:2px;border-radius:2px;background:var(--primary);
}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--border);
  border-radius:12px;color:#fff;font-size:20px;background:rgba(255,255,255,.04);
}
.article-hero{
  position:relative;padding:130px 0 80px;
  background:linear-gradient(180deg,rgba(7,11,20,.55),rgba(7,11,20,.92)),url('/assets/images/backpic/back-2.webp') center 22%/cover no-repeat;
  border-bottom:1px solid var(--border);overflow:hidden;
}
.article-hero::before{
  content:"";position:absolute;top:0;right:0;width:420px;height:420px;
  background:radial-gradient(circle,rgba(255,45,85,.14),transparent 66%);
  pointer-events:none;
}
.hero-inner{position:relative;z-index:2;max-width:900px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:22px}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--primary)}
.crumb-sep{opacity:.4}
.article-badge{margin-bottom:16px}
.article-hero h1{
  font-size:clamp(30px,4.6vw,50px);line-height:1.18;font-weight:800;
  margin-bottom:20px;text-shadow:0 6px 30px rgba(0,0,0,.35);
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:20px;color:#cbd5e1;font-size:14px;margin-top:8px}
.article-meta span{display:inline-flex;align-items:center;gap:8px}
.meta-dot{width:4px;height:4px;border-radius:50%;background:var(--primary)}
.article-section{position:relative;z-index:5;margin-top:-48px;padding:0 0 40px}
.container.narrow{max-width:860px}
.article-panel{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:44px 48px;
}
.author-line{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  font-size:14px;color:var(--muted);
  padding-bottom:22px;border-bottom:1px solid var(--border);margin-bottom:14px;
}
.avatar{
  display:inline-flex;width:36px;height:36px;border-radius:50%;
  background:linear-gradient(135deg,var(--primary),#d946ef);
  color:#fff;font-weight:700;align-items:center;justify-content:center;font-size:14px;
}
.article-body{font-size:17px;color:#cbd5e1}
.article-body>p{margin:18px 0}
.article-body h2{
  font-size:26px;color:#fff;margin:36px 0 16px;line-height:1.3;
  padding-left:16px;border-left:4px solid var(--primary);
}
.article-body h3{font-size:21px;color:#fff;margin:30px 0 12px}
.article-body a{color:#ff7a90;border-bottom:1px solid rgba(255,122,144,.3)}
.article-body a:hover{color:#ff2d55;border-bottom-color:var(--primary)}
.article-body img{border-radius:14px;box-shadow:var(--shadow-sm);margin:26px 0}
.article-body blockquote{
  border-left:3px solid var(--primary);background:rgba(255,255,255,.03);
  padding:16px 20px;border-radius:0 12px 12px 0;color:var(--muted);margin:24px 0;
}
.article-body ul,.article-body ol{margin:16px 0;padding-left:22px}
.article-body li{margin:8px 0}
.article-body strong{color:#fff}
.article-body iframe,.article-body video{border-radius:14px;width:100%}
.not-found{padding:80px 20px;text-align:center}
.not-found h2{font-size:28px;color:#fff;margin-bottom:12px}
.not-found .btn{margin-top:8px}
.article-tags-wrap{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-top:36px;padding-top:26px;border-top:1px solid var(--border);
}
.tags-label{font-size:13px;color:var(--muted);margin-right:4px}
.tag-item{
  display:inline-block;padding:7px 15px;border-radius:999px;
  background:rgba(255,255,255,.04);border:1px solid var(--border);
  color:#cbd5e1;font-size:13px;transition:all var(--transition);
}
.tag-item:hover{color:#fff;border-color:rgba(255,45,85,.5);background:rgba(255,45,85,.1);transform:translateY(-2px)}
.related-section{background:var(--bg-soft);padding:80px 0;border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.related-card{
  background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);
  overflow:hidden;transition:all var(--transition);display:flex;flex-direction:column;
}
.related-card:hover{transform:translateY(-6px);box-shadow:var(--shadow);border-color:rgba(255,255,255,.14)}
.thumb{position:relative;aspect-ratio:16/9;overflow:hidden}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.related-card:hover .thumb img{transform:scale(1.06)}
.thumb .play{
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  background:rgba(7,11,20,.25);color:#fff;font-size:34px;opacity:0;transition:opacity var(--transition);
}
.related-card:hover .play{opacity:1}
.related-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.related-body h3{font-size:17px;line-height:1.45;color:#fff}
.related-body p{font-size:13px;color:var(--muted);flex:1}
.related-meta{display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--muted)}
.related-meta .cat{color:#ff6b81;font-weight:600}
.cta-banner{padding:80px 0}
.cta-inner{
  border-radius:24px;padding:60px 48px;text-align:center;position:relative;overflow:hidden;
  background:linear-gradient(135deg,rgba(225,29,72,.88),rgba(190,24,60,.76),rgba(79,70,229,.68)),url('/assets/images/backpic/back-3.webp') center/cover;
  box-shadow:var(--shadow);
}
.cta-inner h2{font-size:clamp(26px,3.6vw,38px);color:#fff;line-height:1.3}
.cta-inner p{color:rgba(255,255,255,.85);margin:16px auto 28px;max-width:580px}
.cta-inner .btn-light{background:#fff;color:#be123c;font-weight:700}
.cta-inner .btn-light:hover{transform:translateY(-2px);box-shadow:0 16px 30px rgba(0,0,0,.2)}
.faq-section{padding:80px 0;background:var(--bg)}
.faq-list{max-width:820px;margin:0 auto;display:grid;gap:14px}
.faq-item{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius-sm);overflow:hidden}
.faq-summary{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:20px 22px;font-size:16px;color:#fff;font-weight:600;
  cursor:pointer;list-style:none;transition:background var(--transition);
}
.faq-summary::-webkit-details-marker{display:none}
.faq-summary:hover{background:rgba(255,255,255,.03)}
.faq-icon{color:var(--primary);transition:transform .25s ease;font-size:20px}
.faq-item[open] .faq-icon{transform:rotate(45deg)}
.faq-answer{padding:0 22px 20px;color:var(--muted);font-size:15px;line-height:1.75}
.footer{background:var(--bg-soft);border-top:1px solid var(--border);padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:48px;padding-bottom:44px}
.footer-about .logo{margin-bottom:16px}
.footer-about p{color:var(--muted);font-size:14px;line-height:1.8;max-width:360px}
.footer h4{font-size:15px;color:#fff;margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:12px}
.footer-links a{color:var(--muted);font-size:14px;display:inline-flex}
.footer-links a:hover{color:var(--primary)}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;
  padding:20px 0;border-top:1px solid var(--border);color:var(--muted);font-size:13px;
}
@media(max-width:1024px){
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:768px){
  .nav{
    position:fixed;top:70px;left:0;right:0;
    background:rgba(7,11,20,.97);border-bottom:1px solid var(--border);
    flex-direction:column;align-items:stretch;padding:18px 20px;gap:6px;display:none;
  }
  .nav.open{display:flex}
  .nav a{padding:14px 16px;border-radius:12px;font-size:15px}
  .nav a.active::after{display:none}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .article-hero{padding:110px 0 70px}
  .article-section{margin-top:-40px}
  .article-panel{padding:30px 22px}
  .related-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{justify-content:center;text-align:center}
}
@media(max-width:520px){
  .container{width:94%}
  .hero-inner h1{font-size:27px}
  .article-meta{flex-direction:column;align-items:flex-start;gap:8px}
  .cta-inner{padding:40px 22px}
  .cta-inner .btn{width:100%}
  .related-card .thumb{aspect-ratio:4/3}
  .footer-bottom span{display:block}
}

/* roulang page: category2 */
/* ============ 设计变量 ============ */
:root {
  --primary: #ff3b5c;
  --primary-dark: #e82847;
  --primary-glow: rgba(255, 59, 92, 0.35);
  --accent: #7c5cff;
  --accent-glow: rgba(124, 92, 255, 0.28);
  --bg: #0b0d12;
  --bg-soft: #11141c;
  --surface: #161a24;
  --card: #1a1e2a;
  --card-hover: #202534;
  --text: #eef0f6;
  --text-muted: #8b90a5;
  --border: rgba(255, 255, 255, 0.07);
  --border-strong: rgba(255, 255, 255, 0.14);
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --shadow: 0 16px 40px rgba(0, 0, 0, 0.45);
  --shadow-hover: 0 20px 52px rgba(0, 0, 0, 0.55);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --header-h: 72px;
}

/* ============ 基础重置 ============ */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  font-size: 16px;
  min-height: 100vh;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition);
}

button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
}

ul,
ol {
  list-style: none;
}

/* ============ 容器 ============ */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 28px;
}

/* ============ 顶栏 ============ */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(11, 13, 18, 0.82);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border);
}

.header .container {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.logo-mark {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 17px;
  line-height: 1;
  box-shadow: 0 0 18px var(--primary-glow);
}

.logo-text {
  font-size: 19px;
  font-weight: 800;
  letter-spacing: 0.5px;
  background: linear-gradient(90deg, #fff, var(--primary));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav a {
  padding: 9px 20px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-muted);
  transition: all var(--transition);
}

.nav a:hover {
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
}

.nav a.active {
  color: var(--text);
  background: linear-gradient(135deg, var(--primary), var(--accent));
  box-shadow: 0 4px 20px var(--primary-glow);
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-sm);
  width: 42px;
  height: 42px;
  font-size: 20px;
  color: var(--text);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
}

.nav-toggle:hover {
  border-color: var(--primary);
  color: var(--primary);
}

/* ============ 按钮 ============ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 30px;
  border-radius: 999px;
  font-size: 16px;
  font-weight: 700;
  line-height: 1.2;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all var(--transition);
  text-align: center;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), #ff6a45);
  color: #fff;
  box-shadow: 0 6px 24px var(--primary-glow);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 34px var(--primary-glow);
}

.btn-primary:active {
  transform: translateY(-1px);
  box-shadow: 0 4px 14px var(--primary-glow);
}

.btn-outline {
  background: transparent;
  border-color: var(--border-strong);
  color: var(--text);
}

.btn-outline:hover {
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-3px);
}

.btn-outline:active {
  transform: translateY(-1px);
}

.btn-lg {
  padding: 16px 40px;
  font-size: 17px;
}

.btn:focus-visible,
.nav a:focus-visible,
.footer a:focus-visible,
.faq-item summary:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
}

/* ============ Hero ============ */
.hero {
  position: relative;
  min-height: 640px;
  display: flex;
  align-items: center;
  background-image: linear-gradient(rgba(11, 13, 18, 0.78), rgba(11, 13, 18, 0.92)), url('/assets/images/backpic/back-2.webp');
  background-size: cover;
  background-position: center;
  overflow: hidden;
  padding: 90px 0 70px;
  text-align: center;
}

.hero::before {
  content: '';
  position: absolute;
  top: -60%;
  left: -20%;
  width: 60%;
  height: 60%;
  background: radial-gradient(circle, var(--primary-glow), transparent 70%);
  filter: blur(50px);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -40%;
  right: -20%;
  width: 50%;
  height: 50%;
  background: radial-gradient(circle, var(--accent-glow), transparent 70%);
  filter: blur(60px);
  pointer-events: none;
}

.hero .container {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 22px;
  border-radius: 999px;
  background: rgba(255, 59, 92, 0.14);
  border: 1px solid rgba(255, 59, 92, 0.35);
  color: #ff8aa0;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 1px;
  margin-bottom: 28px;
}

.hero-badge .pulse-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--primary);
  animation: pulse 1.6s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.45; transform: scale(0.72); }
}

.hero h1 {
  font-size: clamp(32px, 5vw, 52px);
  font-weight: 900;
  line-height: 1.25;
  letter-spacing: 1px;
  margin-bottom: 18px;
  max-width: 780px;
}

.hero h1 .gradient {
  background: linear-gradient(90deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-subtitle {
  font-size: clamp(16px, 2vw, 19px);
  color: var(--text-muted);
  max-width: 640px;
  line-height: 1.8;
  margin-bottom: 34px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: center;
  margin-bottom: 52px;
}

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 18px 42px;
}

.stat-item {
  text-align: center;
  padding: 0 28px;
  position: relative;
}

.stat-item + .stat-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 1px;
  height: 34px;
  background: var(--border-strong);
}

.stat-item strong {
  display: block;
  font-size: 26px;
  font-weight: 900;
  background: linear-gradient(135deg, #fff, var(--primary));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.stat-item span {
  font-size: 13px;
  color: var(--text-muted);
  display: block;
  margin-top: 4px;
}

/* ============ 通用板块 ============ */
.section {
  padding: 96px 0;
}

.section + .section {
  border-top: 1px solid var(--border);
}

.section-head {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 56px;
}

.section-tag {
  display: inline-block;
  padding: 6px 18px;
  border-radius: 999px;
  background: rgba(124, 92, 255, 0.12);
  border: 1px solid rgba(124, 92, 255, 0.3);
  color: #a191ff;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 1px;
  margin-bottom: 18px;
}

.section-head h2 {
  font-size: clamp(26px, 3.4vw, 38px);
  font-weight: 900;
  line-height: 1.35;
  margin-bottom: 14px;
}

.section-head p {
  color: var(--text-muted);
  font-size: 16px;
  line-height: 1.8;
}

/* ============ 频道亮点 ============ */
.features {
  background: var(--bg-soft);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.feature-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 34px 28px 30px;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  opacity: 0;
  transition: opacity var(--transition);
}

.feature-card:hover {
  background: var(--card-hover);
  border-color: var(--border-strong);
  transform: translateY(-8px);
  box-shadow: var(--shadow-hover);
}

.feature-card:hover::before {
  opacity: 1;
}

.feature-icon {
  width: 54px;
  height: 54px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, rgba(255, 59, 92, 0.2), rgba(124, 92, 255, 0.2));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  margin-bottom: 20px;
}

.feature-card h3 {
  font-size: 18px;
  font-weight: 800;
  margin-bottom: 10px;
}

.feature-card p {
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.75;
}

/* ============ 主播推荐 ============ */
.anchors {
  background: var(--bg);
}

.anchor-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
}

.anchor-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
}

.anchor-card:hover {
  border-color: var(--border-strong);
  transform: translateY(-8px);
  box-shadow: var(--shadow-hover);
}

.anchor-cover {
  position: relative;
  aspect-ratio: 4 / 3;
  overflow: hidden;
}

.anchor-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}

.anchor-card:hover .anchor-cover img {
  transform: scale(1.06);
}

.anchor-cover::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(11, 13, 18, 0.85), transparent 60%);
}

.anchor-status {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 2;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  background: rgba(255, 59, 92, 0.9);
  color: #fff;
  backdrop-filter: blur(8px);
}

.anchor-status .ping {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #fff;
  animation: pulse 1.4s infinite;
}

.anchor-status.off {
  background: rgba(113, 118, 136, 0.82);
}

.anchor-heat {
  position: absolute;
  top: 14px;
  right: 14px;
  z-index: 2;
  padding: 5px 14px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  background: rgba(0, 0, 0, 0.6);
  color: #ffca5e;
  backdrop-filter: blur(8px);
}

.anchor-info {
  padding: 22px 22px 24px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
}

.anchor-info h3 {
  font-size: 19px;
  font-weight: 800;
}

.anchor-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  background: rgba(124, 92, 255, 0.13);
  border: 1px solid rgba(124, 92, 255, 0.28);
  color: #b6a7ff;
}

.anchor-meta {
  display: flex;
  align-items: center;
  gap: 18px;
  color: var(--text-muted);
  font-size: 13px;
  margin-top: auto;
  padding-top: 10px;
  border-top: 1px solid var(--border);
}

.anchor-meta i {
  font-style: normal;
}

.anchor-meta .meta-star {
  color: #ffca5e;
}

.anchor-btn {
  margin-top: 12px;
  width: 100%;
  justify-content: center;
  font-size: 14px;
  padding: 11px 20px;
}

/* ============ 适用场景 ============ */
.scenarios {
  background: var(--bg-soft);
}

.scenario-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.scenario-item {
  text-align: center;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 38px 22px 32px;
  transition: all var(--transition);
}

.scenario-item:hover {
  border-color: var(--border-strong);
  background: var(--card-hover);
  transform: translateY(-6px);
}

.scenario-icon {
  font-size: 42px;
  line-height: 1;
  margin-bottom: 20px;
  display: block;
}

.scenario-item h3 {
  font-size: 18px;
  font-weight: 800;
  margin-bottom: 10px;
}

.scenario-item p {
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.7;
}

/* ============ 使用流程 ============ */
.process {
  background: var(--bg);
  position: relative;
  overflow: hidden;
}

.process::before {
  content: '';
  position: absolute;
  top: -30%;
  left: 40%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, var(--accent-glow), transparent 70%);
  filter: blur(60px);
  pointer-events: none;
}

.steps {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
  position: relative;
  z-index: 2;
}

.step {
  position: relative;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px 28px 32px;
  text-align: center;
  transition: all var(--transition);
}

.step:hover {
  border-color: var(--border-strong);
  transform: translateY(-6px);
}

.step-num {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 19px;
  font-weight: 900;
  color: #fff;
  margin: 0 auto 20px;
  box-shadow: 0 0 22px var(--primary-glow);
}

.step h3 {
  font-size: 17px;
  font-weight: 800;
  margin-bottom: 10px;
}

.step p {
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.7;
}

/* ============ FAQ ============ */
.faq {
  background: var(--bg-soft);
}

.faq-list {
  max-width: 780px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: all var(--transition);
}

.faq-item:hover {
  border-color: var(--border-strong);
}

.faq-item summary {
  padding: 22px 28px;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  list-style: none;
  color: var(--text);
  transition: color var(--transition);
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: '+';
  font-size: 22px;
  font-weight: 400;
  color: var(--primary);
  flex-shrink: 0;
  transition: transform var(--transition);
}

.faq-item[open] summary::after {
  transform: rotate(45deg);
}

.faq-item .faq-body {
  padding: 0 28px 24px;
  color: var(--text-muted);
  font-size: 15px;
  line-height: 1.8;
}

/* ============ CTA ============ */
.cta {
  padding: 110px 0;
  text-align: center;
  background-image: linear-gradient(rgba(11, 13, 18, 0.82), rgba(11, 13, 18, 0.92)), url('/assets/images/backpic/back-1.webp');
  background-size: cover;
  background-position: center;
  position: relative;
}

.cta .container {
  position: relative;
  z-index: 2;
}

.cta h2 {
  font-size: clamp(28px, 4vw, 40px);
  font-weight: 900;
  margin-bottom: 16px;
}

.cta p {
  color: var(--text-muted);
  font-size: 17px;
  max-width: 560px;
  margin: 0 auto 34px;
  line-height: 1.8;
}

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

/* ============ 页脚 ============ */
.footer {
  background: #080a0f;
  border-top: 1px solid var(--border);
  padding: 70px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
}

.footer-about .logo {
  margin-bottom: 16px;
}

.footer-about p {
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.8;
  max-width: 300px;
}

.footer h4 {
  font-size: 16px;
  font-weight: 800;
  margin-bottom: 18px;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  color: var(--text-muted);
  font-size: 14px;
  transition: all var(--transition);
}

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

.footer-bottom {
  border-top: 1px solid var(--border);
  padding: 24px 0;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  color: var(--text-muted);
  font-size: 13px;
}

/* ============ 响应式 ============ */
@media (max-width: 1024px) {
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .scenario-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .anchor-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .container {
    padding: 0 20px;
  }

  .nav {
    position: fixed;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: rgba(11, 13, 18, 0.97);
    flex-direction: column;
    align-items: stretch;
    padding: 12px 20px 20px;
    gap: 4px;
    border-bottom: 1px solid var(--border);
    transform: translateY(-140%);
    opacity: 0;
    pointer-events: none;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    backdrop-filter: blur(18px);
  }

  .nav.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav a {
    padding: 14px 20px;
    border-radius: var(--radius-sm);
  }

  .nav-toggle {
    display: inline-flex;
  }

  .hero {
    min-height: 560px;
    padding: 70px 0 50px;
  }

  .hero-stats {
    border-radius: var(--radius-lg);
    flex-direction: column;
    gap: 16px;
    padding: 24px 32px;
  }

  .stat-item + .stat-item::before {
    display: none;
  }

  .stat-item {
    padding: 0;
  }

  .section {
    padding: 72px 0;
  }

  .section-head {
    margin-bottom: 40px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }
}

@media (max-width: 520px) {
  .container {
    padding: 0 16px;
  }

  .logo-text {
    font-size: 17px;
  }

  .feature-grid {
    grid-template-columns: 1fr;
  }

  .scenario-grid {
    grid-template-columns: 1fr;
  }

  .anchor-grid {
    grid-template-columns: 1fr;
  }

  .steps {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .hero-actions {
    flex-direction: column;
    width: 100%;
  }

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

  .cta-actions {
    flex-direction: column;
    width: 100%;
  }

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

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .btn-lg {
    padding: 14px 28px;
    font-size: 15px;
  }
}