/* ============================================================
   亚枫云漫剧坊 · AI 数字化全链路招商合作计划书（PC 端宣传站）
   主题：深空科技 + 毛玻璃卡片 + 炫彩霓虹
   ============================================================ */

:root {
    /* 底色（纯白） */
    --bg: #FFFFFF;
    --bg-deep: #FFFFFF;
    --bg-soft: #F6F8FB;

    /* 霓虹主色（保留作为强调色，在白底上用） */
    --neon-1: #06B6D4;   /* 电光青（白底上更稳重的青） */
    --neon-2: #7C3AED;   /* 星云紫 */
    --neon-3: #EC4899;   /* 霓虹玫红 */
    --neon-4: #10B981;   /* 极光薄荷（改成更稳重的绿） */
    --neon-5: #F59E0B;   /* 琥珀金 */

    --neon-grad: linear-gradient(115deg, #06B6D4 0%, #7C3AED 48%, #EC4899 100%);
    --neon-grad-2: linear-gradient(115deg, #10B981 0%, #06B6D4 52%, #7C3AED 100%);
    --neon-grad-soft: linear-gradient(115deg, rgba(6, 182, 212, .9), rgba(124, 58, 237, .9), rgba(236, 72, 153, .9));

    /* 文字（深色） */
    --text: #0F172A;
    --text-2: #334155;
    --muted: #64748B;
    --muted-2: #94A3B8;

    /* 玻璃 / 边线（白底上的浅色玻璃） */
    --glass: linear-gradient(158deg, rgba(255, 255, 255, .95), rgba(246, 248, 251, .85));
    --glass-2: linear-gradient(158deg, rgba(255, 255, 255, 1), rgba(241, 245, 249, .9));
    --glass-solid: rgba(255, 255, 255, .92);
    --line: rgba(15, 23, 42, .10);
    --line-soft: rgba(15, 23, 42, .06);
    --line-neon: rgba(6, 182, 212, .45);
    --blur: 14px;

    --radius: 18px;
    --radius-sm: 12px;
    --maxw: 1240px;

    --font-sans: "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, -apple-system, sans-serif;
    --font-brand: "STXingkai", "华文行楷", "Xingkai SC", "KaiTi", "楷体", serif;

    --glow-cyan: 0 0 0 0 transparent;
    --glow-violet: 0 0 0 0 transparent;
    --glow-pink: 0 0 0 0 transparent;
    --shadow: 0 10px 30px -15px rgba(15, 23, 42, .14), 0 2px 6px -2px rgba(15, 23, 42, .06);
}

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

html { scroll-behavior: smooth; }

body {
    background: var(--bg-deep);
    color: var(--text);
    font-family: var(--font-sans);
    font-size: 15px;
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

/* ============================ 背景（白底 + 极淡光斑） ============================ */
/* 极淡的彩色光斑（白底上的氛围，不再是黑色光晕） */
body::before {
    content: "";
    position: fixed;
    inset: -12%;
    z-index: 0;
    pointer-events: none;
    background:
        radial-gradient(760px 520px at 82% 4%, rgba(6, 182, 212, .06), transparent 62%),
        radial-gradient(640px 480px at 8% 16%, rgba(124, 58, 237, .05), transparent 66%),
        radial-gradient(700px 520px at 92% 62%, rgba(236, 72, 153, .04), transparent 66%),
        radial-gradient(820px 620px at 22% 96%, rgba(16, 185, 129, .04), transparent 68%);
    animation: auroraDrift 26s ease-in-out infinite alternate;
}

/* 极淡的网格（白底上几乎看不见，但有科技感） */
body::after {
    content: "";
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    background-image:
        linear-gradient(rgba(15, 23, 42, .035) 1px, transparent 1px),
        linear-gradient(90deg, rgba(15, 23, 42, .035) 1px, transparent 1px);
    background-size: 52px 52px, 52px 52px;
    mask-image: radial-gradient(circle at 50% 42%, #000 18%, rgba(0, 0, 0, .4) 70%, transparent 92%);
    -webkit-mask-image: radial-gradient(circle at 50% 42%, #000 18%, rgba(0, 0, 0, .4) 70%, transparent 92%);
}

@keyframes auroraDrift {
    0% { transform: translate3d(-1.5%, -1%, 0) scale(1.02); }
    100% { transform: translate3d(1.5%, 1.5%, 0) scale(1.08); }
}

.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 32px; position: relative; z-index: 1; }

a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

/* 毛玻璃通用基类 */
.glass,
.card,
.toc-item,
.tier,
.stat,
.hero-stats,
.table-wrap,
.contact-box,
.qr-box,
.quote {
    position: relative;
    background: var(--glass);
    border: 1px solid var(--line-soft);
    backdrop-filter: blur(var(--blur)) saturate(155%);
    -webkit-backdrop-filter: blur(var(--blur)) saturate(155%);
}

/* 霓虹描边（悬停点亮） */
.card::before,
.toc-item::before,
.tier::before,
.stat::before,
.cover-glow,
.contact-box::before {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    padding: 1px;
    background: var(--neon-grad);
    -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
    mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity .35s ease;
    pointer-events: none;
    z-index: 2;
}

.card:hover::before,
.toc-item:hover::before,
.tier:hover::before { opacity: .9; }

/* ============================ 顶部导航 ============================ */
.nav {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 60;
    backdrop-filter: blur(22px) saturate(170%);
    -webkit-backdrop-filter: blur(22px) saturate(170%);
    background: rgba(5, 8, 16, .62);
    border-bottom: 1px solid transparent;
    transition: background .3s ease, border-color .3s ease, box-shadow .3s ease;
}

.nav.scrolled {
    background: rgba(4, 7, 14, .88);
    border-bottom-color: rgba(41, 231, 255, .22);
    box-shadow: 0 18px 50px -34px rgba(41, 231, 255, .8);
}

.nav-inner {
    max-width: var(--maxw);
    margin: 0 auto;
    padding: 0 32px;
    height: 76px;
    display: flex;
    align-items: center;
    gap: 28px;
}

.brand { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }

.brand-mark {
    width: 40px; height: 40px;
    border-radius: 12px;
    display: grid; place-items: center;
    background: var(--neon-grad);
    color: #03060E;
    font-family: var(--font-brand);
    font-size: 21px;
    font-weight: 700;
    box-shadow: var(--glow-cyan), var(--glow-violet);
    position: relative;
    overflow: hidden;
}

.brand-mark::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, rgba(255, 255, 255, .5), transparent 55%);
    opacity: .5;
}

/* 品牌 Logo（透明底图片，深色背景适配） */
.brand-logo {
    width: 40px; height: 40px;
    flex-shrink: 0;
    display: grid; place-items: center;
    padding: 3px;
    border-radius: 12px;
    background: linear-gradient(150deg, #FFFFFF, #F1F5F9);
    border: 1px solid var(--line-neon);
    box-shadow: 0 0 18px rgba(168, 85, 247, .35);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: box-shadow .3s ease, transform .3s ease, border-color .3s ease;
}

.brand-logo img {
    width: 100%; height: 100%;
    object-fit: contain;
    display: block;
    filter: drop-shadow(0 0 8px rgba(168, 85, 247, .6));
}

.brand:hover .brand-logo {
    transform: translateY(-1px);
    border-color: rgba(41, 231, 255, .55);
    box-shadow: 0 0 22px rgba(41, 231, 255, .35), 0 0 30px rgba(168, 85, 247, .3);
}

.brand-logo.sm { width: 30px; height: 30px; border-radius: 9px; padding: 2px; box-shadow: none; }

.brand-text { display: flex; flex-direction: column; line-height: 1.25; }
.brand-name { font-family: var(--font-brand); font-size: 21px; letter-spacing: .04em; }
.brand-sub { font-size: 11px; color: var(--neon-1); letter-spacing: .1em; opacity: .85; white-space: nowrap; }

.nav-links { display: flex; align-items: center; gap: 26px; margin-left: auto; }

.nav-links a {
    font-size: 14px;
    color: var(--text-2);
    position: relative;
    padding: 6px 0;
    transition: color .22s ease, text-shadow .22s ease;
    white-space: nowrap;
}

.nav-links a::after {
    content: "";
    position: absolute;
    left: 0; right: 100%;
    bottom: -2px;
    height: 2px;
    border-radius: 2px;
    background: var(--neon-grad);
    box-shadow: 0 0 12px rgba(41, 231, 255, .9);
    transition: right .26s ease;
}

.nav-links a:hover,
.nav-links a.active { color: #FFFFFF; text-shadow: 0 0 16px rgba(41, 231, 255, .55); }
.nav-links a:hover::after,
.nav-links a.active::after { right: 0; }

.nav-cta {
    padding: 10px 22px;
    border-radius: 999px;
    font-size: 14px;
    font-weight: 700;
    color: #03060E;
    background: var(--neon-grad);
    box-shadow: 0 12px 34px -14px rgba(41, 231, 255, .95), 0 0 0 1px rgba(255, 255, 255, .12) inset;
    transition: transform .22s ease, box-shadow .22s ease, filter .22s ease;
    white-space: nowrap;
}

.nav-cta:hover {
    transform: translateY(-2px);
    filter: saturate(125%);
    box-shadow: 0 18px 44px -14px rgba(123, 92, 255, 1), 0 0 0 1px rgba(255, 255, 255, .18) inset;
}

/* ============================ 首屏 ============================ */
.hero {
    position: relative;
    z-index: 1;
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding: 150px 0 90px;
}

/* 首屏 HUD 装饰 */
.hero::before {
    content: "";
    position: absolute;
    right: -6%;
    top: 12%;
    width: 46vw; height: 46vw;
    max-width: 720px; max-height: 720px;
    border-radius: 50%;
    background:
        radial-gradient(circle at 50% 50%, rgba(41, 231, 255, .20), transparent 58%),
        conic-gradient(from 120deg, rgba(123, 92, 255, .22), transparent 42%, rgba(255, 79, 216, .2), transparent 78%);
    filter: blur(28px);
    pointer-events: none;
}

.hero::after {
    content: "";
    position: absolute;
    left: 0; right: 0; bottom: 8%;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(41, 231, 255, .5), rgba(255, 79, 216, .42), transparent);
    opacity: .7;
    pointer-events: none;
}

.hero-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-size: 12px;
    letter-spacing: .3em;
    color: var(--neon-1);
    text-transform: uppercase;
    margin-bottom: 26px;
    text-shadow: 0 0 22px rgba(41, 231, 255, .5);
}

.hero-eyebrow::before {
    content: "";
    width: 46px; height: 2px;
    border-radius: 2px;
    background: var(--neon-grad);
    box-shadow: 0 0 14px rgba(41, 231, 255, .9);
}

.hero h1 {
    font-size: clamp(40px, 5.6vw, 82px);
    line-height: 1.14;
    font-weight: 800;
    letter-spacing: -.01em;
    margin-bottom: 26px;
    text-shadow: 0 10px 30px rgba(15, 23, 42, .08);
}

.hero h1 .accent {
    background: var(--neon-grad);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    filter: drop-shadow(0 0 26px rgba(41, 231, 255, .35));
}

.hero-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px 18px;
    margin-bottom: 30px;
    font-size: 15px;
    color: var(--text-2);
}

.hero-tags span,
.hero-tags a {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 7px 16px;
    border-radius: 999px;
    border: 1px solid var(--line-soft);
    background: linear-gradient(150deg, rgba(255, 255, 255, .07), rgba(255, 255, 255, .02));
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    transition: border-color .25s ease, color .25s ease, box-shadow .25s ease, transform .25s ease;
}

.hero-tags span:hover,
.hero-tags a:hover {
    color: var(--neon-1);
    border-color: var(--line-neon);
    box-shadow: var(--glow-cyan);
}

.hero-tags a { cursor: pointer; }
.hero-tags a::after { content: "↗"; font-size: 12px; color: var(--neon-1); transition: transform .25s ease; }
.hero-tags a:hover::after { transform: translate(3px, -3px); }

.hero-companies {
    font-size: 14px;
    color: var(--muted);
    padding-top: 22px;
    border-top: 1px solid var(--line-soft);
    display: flex;
    flex-wrap: wrap;
    gap: 10px 16px;
    align-items: center;
    margin-bottom: 40px;
    max-width: 900px;
}

.hero-companies b { color: var(--text); font-weight: 700; }
.hero-companies .x { color: var(--neon-1); }

.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; align-items: center; }

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 15px 32px;
    border-radius: 999px;
    font-size: 15px;
    font-weight: 700;
    cursor: pointer;
    border: 1px solid transparent;
    background: none;
    font-family: inherit;
    color: var(--text);
    transition: transform .22s ease, box-shadow .22s ease, background .22s ease, border-color .22s ease, color .22s ease;
}

.btn-gold,
.btn-neon {
    color: #03060E;
    background: var(--neon-grad);
    box-shadow: 0 16px 44px -18px rgba(41, 231, 255, .95), 0 0 0 1px rgba(255, 255, 255, .14) inset;
}

.btn-gold:hover,
.btn-neon:hover {
    transform: translateY(-2px);
    box-shadow: 0 24px 54px -18px rgba(123, 92, 255, 1), 0 0 0 1px rgba(255, 255, 255, .2) inset;
}

.btn-ghost {
    color: var(--text);
    border-color: var(--line);
    background: linear-gradient(150deg, rgba(255, 255, 255, 1), rgba(246, 248, 251, .8));
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
}

.btn-ghost:hover {
    color: var(--neon-2);
    border-color: var(--line-neon);
    background: linear-gradient(150deg, rgba(255, 255, 255, 1), rgba(241, 245, 249, .9));
    box-shadow: 0 8px 24px -10px rgba(124, 58, 237, .35);
    transform: translateY(-2px);
}

/* 首屏数据条 */
.hero-stats {
    margin-top: 70px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1px;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

.hero-stat { padding: 28px 30px; background: #FFFFFF; }

.hero-stat .num {
    font-size: 40px;
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -.01em;
    background: var(--neon-grad);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    filter: drop-shadow(0 0 20px rgba(41, 231, 255, .3));
}

.hero-stat .lbl { font-size: 14px; color: var(--text); margin-top: 8px; font-weight: 600; }
.hero-stat .sub { font-size: 12.5px; color: var(--muted-2); margin-top: 4px; }

.scroll-hint {
    position: absolute;
    left: 50%; bottom: 34px;
    transform: translateX(-50%);
    font-size: 11px;
    letter-spacing: .28em;
    color: var(--muted-2);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.scroll-hint i {
    width: 2px; height: 46px;
    border-radius: 2px;
    background: linear-gradient(180deg, var(--neon-1), var(--neon-2), transparent);
    box-shadow: 0 0 14px rgba(41, 231, 255, .7);
    animation: scrollPulse 2.4s ease-in-out infinite;
}

@keyframes scrollPulse {
    0%, 100% { opacity: .25; transform: scaleY(.6); }
    50% { opacity: 1; transform: scaleY(1); }
}

/* ============================ 通用区块 ============================ */
.section { position: relative; z-index: 1; padding: 108px 0; }

.section.alt {
    background: linear-gradient(180deg, rgba(255, 255, 255, .035), transparent 58%);
    border-top: 1px solid var(--line-soft);
    border-bottom: 1px solid var(--line-soft);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
}

.sec-head { max-width: 880px; margin-bottom: 56px; }

.sec-head-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 18px;
}

.sec-head-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    border-radius: 999px;
    font-size: 12.5px;
    font-weight: 600;
    color: var(--neon-1);
    border: 1px solid var(--line-neon);
    background: rgba(41, 231, 255, .08);
    text-decoration: none;
    transition: all .25s ease;
    letter-spacing: .02em;
}

.sec-head-link svg { flex: none; }

.sec-head-link:hover {
    color: #04060C;
    background: var(--neon-1);
    border-color: var(--neon-1);
    transform: translateY(-1px);
    box-shadow: 0 8px 22px -10px rgba(41, 231, 255, .7);
}

.sec-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-size: 12.5px;
    letter-spacing: .22em;
    color: var(--neon-1);
    margin-bottom: 18px;
    text-shadow: 0 0 20px rgba(41, 231, 255, .45);
}

.sec-eyebrow .idx {
    font-size: 20px;
    font-weight: 800;
    letter-spacing: 0;
    background: var(--neon-grad-2);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.sec-eyebrow .bar {
    width: 34px; height: 2px;
    border-radius: 2px;
    background: var(--neon-grad);
    box-shadow: 0 0 12px rgba(41, 231, 255, .8);
}

.sec-title {
    font-size: clamp(28px, 3.1vw, 44px);
    font-weight: 800;
    line-height: 1.3;
    letter-spacing: -.005em;
    text-shadow: 0 18px 44px rgba(0, 0, 0, .7);
}

.sec-desc { margin-top: 16px; color: var(--muted); font-size: 15px; max-width: 780px; }

.hl,
.gold-text,
.accent {
    background: var(--neon-grad);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    filter: drop-shadow(0 0 22px rgba(41, 231, 255, .3));
}

/* ============================ 目录卡片 ============================ */
.toc-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; }
.toc-grid.cols3 { grid-template-columns: repeat(3, 1fr); }

.toc-item {
    padding: 28px 24px 30px;
    border-radius: var(--radius);
    overflow: hidden;
    transition: transform .3s ease, border-color .3s ease, box-shadow .3s ease;
}

.toc-item::after {
    content: "";
    position: absolute;
    left: 0; top: 0;
    width: 100%; height: 2px;
    background: var(--neon-grad);
    box-shadow: 0 0 16px rgba(41, 231, 255, .8);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform .34s ease;
    z-index: 3;
}

.toc-item:hover {
    transform: translateY(-6px);
    border-color: var(--line-neon);
    box-shadow: 0 30px 70px -40px rgba(41, 231, 255, .95);
}

.toc-item:hover::after { transform: scaleX(1); }

.toc-num {
    font-size: 32px;
    font-weight: 800;
    line-height: 1;
    margin-bottom: 14px;
    background: var(--neon-grad-2);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    opacity: .85;
}

.toc-title { font-size: 16px; font-weight: 700; margin-bottom: 8px; }
.toc-desc { font-size: 13px; color: var(--muted); line-height: 1.7; }

/* ============================ 卡片 / 网格 ============================ */
.grid { display: grid; gap: 20px; }
.g2 { grid-template-columns: repeat(2, 1fr); }
.g3 { grid-template-columns: repeat(3, 1fr); }
.g4 { grid-template-columns: repeat(4, 1fr); }

.card {
    padding: 30px 28px;
    border-radius: var(--radius);
    overflow: hidden;
    transition: transform .3s ease, border-color .3s ease, box-shadow .3s ease;
}

.card:hover {
    transform: translateY(-5px);
    border-color: var(--line-neon);
    box-shadow: 0 34px 80px -44px rgba(41, 231, 255, .95);
}

.card-title { font-size: 17px; font-weight: 700; margin-bottom: 14px; display: flex; align-items: center; gap: 10px; }

.card-title .dot {
    width: 7px; height: 7px;
    border-radius: 50%;
    background: var(--neon-1);
    box-shadow: 0 0 14px var(--neon-1), 0 0 4px #fff;
}

.card-kicker {
    font-size: 12px;
    letter-spacing: .18em;
    color: var(--neon-1);
    margin-bottom: 12px;
    text-shadow: 0 0 18px rgba(41, 231, 255, .45);
}

.list { list-style: none; }
.list li { position: relative; padding-left: 18px; font-size: 14px; color: var(--text-2); line-height: 1.95; }

.list li::before {
    content: "";
    position: absolute;
    left: 2px; top: 12px;
    width: 5px; height: 5px;
    border-radius: 50%;
    background: var(--neon-grad);
    box-shadow: 0 0 10px rgba(41, 231, 255, .9);
}

.card-note {
    margin-top: 18px;
    padding-top: 14px;
    border-top: 1px dashed var(--line);
    font-size: 13px;
    color: var(--neon-1);
}

/* 数据卡 */
.stat {
    padding: 34px 30px;
    border-radius: var(--radius);
    overflow: hidden;
    transition: transform .3s ease, border-color .3s ease, box-shadow .3s ease;
}

.stat:hover { transform: translateY(-5px); border-color: var(--line-neon); box-shadow: 0 34px 80px -44px rgba(123, 92, 255, .95); }

.stat .num {
    font-size: 50px;
    font-weight: 800;
    line-height: 1.05;
    letter-spacing: -.015em;
    background: var(--neon-grad);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    filter: drop-shadow(0 0 22px rgba(41, 231, 255, .32));
}

.stat .lbl { margin-top: 12px; font-size: 15px; font-weight: 700; }
.stat .sub { margin-top: 6px; font-size: 13px; color: var(--muted); line-height: 1.8; }

/* 引用 / 高亮块 */
.quote {
    margin-top: 30px;
    padding: 26px 30px;
    border-radius: var(--radius-sm);
    border-left: 2px solid transparent;
    background:
        linear-gradient(150deg, #FFFFFF, #F6F8FB) padding-box,
        var(--neon-grad) border-box;
    border: 1px solid transparent;
    box-shadow: inset 3px 0 22px -18px rgba(41, 231, 255, .9);
    font-size: 15.5px;
    color: var(--text-2);
    position: relative;
    overflow: hidden;
}

.quote::after {
    content: "";
    position: absolute;
    left: 0; top: 12%;
    width: 3px; height: 76%;
    border-radius: 3px;
    background: var(--neon-grad);
    box-shadow: 0 0 18px rgba(41, 231, 255, .85);
}

.quote b { color: #fff; font-weight: 700; }

/* 六大板块 */
.matrix-layer { font-size: 12.5px; letter-spacing: .1em; color: var(--muted-2); margin-bottom: 16px; }

.matrix-card .idx {
    font-size: 28px;
    font-weight: 800;
    line-height: 1;
    margin-bottom: 12px;
    background: var(--neon-grad-2);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    opacity: .9;
}

.matrix-card h3 { font-size: 18px; font-weight: 700; margin-bottom: 14px; }
.matrix-card .result { margin-top: 16px; font-size: 13px; color: var(--neon-4); }

/* ============================ 价格 / 对比表 ============================ */
.table-wrap {
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}

table.price { width: 100%; border-collapse: collapse; font-size: 14px; }

table.price thead th {
    background: linear-gradient(120deg, rgba(41, 231, 255, .16), rgba(123, 92, 255, .14) 55%, rgba(255, 79, 216, .14));
    color: #fff;
    font-weight: 700;
    font-size: 13.5px;
    letter-spacing: .06em;
    padding: 18px 20px;
    text-align: left;
    white-space: nowrap;
    border-bottom: 1px solid var(--line-neon);
}

table.price tbody td { padding: 16px 20px; border-top: 1px solid var(--line-soft); color: var(--text-2); }
table.price tbody tr { transition: background .22s ease; }
table.price tbody tr:hover { background: rgba(41, 231, 255, .06); }
table.price tbody td:last-child { color: var(--muted); }

table.price .tag {
    display: inline-block;
    font-size: 12px;
    padding: 3px 11px;
    border-radius: 999px;
    border: 1px solid var(--line-neon);
    color: var(--neon-1);
    background: rgba(41, 231, 255, .08);
}

table.price .price-now {
    font-weight: 800;
    font-size: 15px;
    background: var(--neon-grad-2);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

table.price .price-old { color: var(--muted-2); text-decoration: line-through; text-decoration-color: rgba(132, 151, 180, .5); }

.table-note { margin-top: 16px; font-size: 13px; color: var(--muted-2); }

.table-wrap.scrollable {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
    scrollbar-color: rgba(41, 231, 255, .5) transparent;
}

.table-wrap.scrollable::-webkit-scrollbar { height: 6px; }
.table-wrap.scrollable::-webkit-scrollbar-thumb { background: var(--neon-grad); border-radius: 999px; }
.table-wrap.scrollable table { min-width: 640px; }

/* 对比表 */
table.compare { width: 100%; border-collapse: collapse; font-size: 14.5px; }

table.compare thead th {
    padding: 20px 22px;
    text-align: left;
    font-size: 14px;
    letter-spacing: .06em;
    border-bottom: 1px solid var(--line-neon);
}

table.compare thead th:nth-child(2) { color: var(--muted); font-weight: 600; }

table.compare thead th:nth-child(3) {
    color: #fff;
    font-weight: 800;
    background: linear-gradient(120deg, rgba(41, 231, 255, .16), transparent);
}

table.compare tbody td { padding: 18px 22px; border-bottom: 1px solid var(--line-soft); color: var(--muted); vertical-align: top; }
table.compare tbody td:first-child { color: var(--text); font-weight: 600; width: 22%; }
table.compare tbody td:nth-child(3) { color: var(--neon-1); background: linear-gradient(120deg, rgba(41, 231, 255, .07), transparent); }
table.compare tbody tr:last-child td { border-bottom: none; }
table.compare tbody tr:hover { background: rgba(123, 92, 255, .07); }

/* ============================ 合伙人 ============================ */
.tier {
    padding: 38px 32px;
    border-radius: var(--radius);
    overflow: hidden;
    transition: transform .3s ease, border-color .3s ease, box-shadow .3s ease;
}

.tier:hover { transform: translateY(-6px); border-color: var(--line-neon); box-shadow: 0 34px 80px -44px rgba(41, 231, 255, .95); }

.tier.featured {
    border-color: rgba(41, 231, 255, .5);
    background: linear-gradient(158deg, rgba(41, 231, 255, .14), rgba(123, 92, 255, .1) 45%, rgba(255, 255, 255, .03));
    box-shadow: 0 40px 90px -50px rgba(41, 231, 255, 1), var(--glow-violet);
}

.tier.featured::before { opacity: .55; }

.tier-badge {
    position: absolute;
    top: -13px; right: 28px;
    font-size: 12px;
    font-weight: 700;
    color: #03060E;
    background: var(--neon-grad);
    padding: 5px 14px;
    border-radius: 999px;
    box-shadow: var(--glow-cyan);
    z-index: 3;
}

.tier h3 { font-size: 19px; font-weight: 700; margin-bottom: 12px; }

.tier .amount {
    font-size: 44px;
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -.02em;
    background: var(--neon-grad);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    filter: drop-shadow(0 0 20px rgba(41, 231, 255, .3));
}

.tier .amount small { font-size: 16px; font-family: var(--font-sans); color: var(--muted); margin-left: 6px; }
.tier .fit { margin-top: 20px; padding-top: 16px; border-top: 1px dashed var(--line); font-size: 13px; color: var(--neon-1); }

/* ============================ 流程 ============================ */
.steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px; position: relative; }

.steps::before {
    content: "";
    position: absolute;
    left: 4%; right: 4%; top: 26px;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(41, 231, 255, .55), rgba(255, 79, 216, .5), transparent);
}

.step { position: relative; padding-top: 62px; }

.step .no {
    position: absolute;
    top: 0; left: 0;
    width: 52px; height: 52px;
    border-radius: 50%;
    display: grid; place-items: center;
    font-size: 19px;
    font-weight: 800;
    color: var(--neon-1);
    background: linear-gradient(150deg, rgba(255, 255, 255, .1), rgba(255, 255, 255, .03));
    border: 1px solid var(--line-neon);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    box-shadow: var(--glow-cyan);
}

.step h4 { font-size: 16px; font-weight: 700; margin-bottom: 8px; }
.step p { font-size: 13.5px; color: var(--muted); line-height: 1.85; }

/* ============================ 联系 ============================ */
.contact-box {
    border-radius: 26px;
    padding: 66px 56px;
    overflow: hidden;
    text-align: center;
    background:
        radial-gradient(620px 320px at 82% 0%, rgba(41, 231, 255, .18), transparent 62%),
        radial-gradient(560px 300px at 12% 100%, rgba(255, 79, 216, .14), transparent 64%),
        var(--glass);
}

.contact-box::before { opacity: .35; }

.contact-box h2 {
    font-size: clamp(28px, 3.4vw, 46px);
    font-weight: 800;
    line-height: 1.34;
    margin-bottom: 18px;
    letter-spacing: -.005em;
}

.contact-box p { color: var(--muted); max-width: 720px; margin: 0 auto 34px; }
.contact-actions { display: flex; flex-wrap: wrap; gap: 16px; justify-content: center; }

.contact-meta {
    margin-top: 40px;
    padding-top: 30px;
    border-top: 1px solid var(--line-soft);
    display: flex;
    flex-wrap: wrap;
    gap: 18px 40px;
    justify-content: center;
    font-size: 13.5px;
    color: var(--muted);
}

.contact-meta b { color: var(--text); font-weight: 600; }

/* 联系方式卡片 + 二维码 */
.contact-cards {
    margin-top: 34px;
    display: flex;
    flex-wrap: wrap;
    gap: 18px;
    justify-content: center;
    align-items: stretch;
}

.contact-card {
    flex: 1 1 240px;
    max-width: 320px;
    text-align: left;
    padding: 22px 24px;
    border-radius: var(--radius);
    background: var(--glass);
    border: 1px solid var(--line-soft);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    transition: border-color .3s ease, box-shadow .3s ease, transform .3s ease;
}

.contact-card:hover { border-color: var(--line-neon); box-shadow: var(--glow-cyan); transform: translateY(-4px); }
.contact-card .cc-label { font-size: 12px; letter-spacing: .18em; color: var(--neon-1); margin-bottom: 10px; }
.contact-card .cc-value { font-size: 24px; font-weight: 800; letter-spacing: .04em; color: var(--text); }
.contact-card .cc-tip { font-size: 12.5px; color: var(--muted); margin-top: 8px; }

.contact-card.qr { display: flex; gap: 18px; align-items: center; max-width: 420px; }
.contact-card.qr img {
    width: 108px; height: 108px;
    border-radius: 12px;
    background: #fff;
    padding: 6px;
    box-shadow: 0 0 0 1px var(--line-neon), var(--glow-cyan);
    flex-shrink: 0;
}
.contact-card.qr .cc-name { font-size: 15px; font-weight: 700; margin-bottom: 6px; }

/* ============================ 页脚 ============================ */
.footer { position: relative; z-index: 1; border-top: 1px solid var(--line-soft); padding: 46px 0; }

.footer::before {
    content: "";
    position: absolute;
    left: 0; right: 0; top: -1px;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(41, 231, 255, .55), rgba(255, 79, 216, .45), transparent);
}

.footer-inner { display: flex; flex-wrap: wrap; gap: 20px 40px; align-items: center; justify-content: space-between; font-size: 13px; color: var(--muted-2); }
.footer-inner .fl { display: flex; flex-wrap: wrap; gap: 10px 24px; align-items: center; }
.footer-inner b { color: var(--text-2); font-weight: 600; }

/* 回到顶部 */
.to-top {
    position: fixed;
    right: 30px; bottom: 34px;
    width: 46px; height: 46px;
    border-radius: 50%;
    display: grid; place-items: center;
    border: 1px solid var(--line-neon);
    background: var(--glass);
    color: var(--neon-1);
    cursor: pointer;
    z-index: 70;
    opacity: 0;
    pointer-events: none;
    transition: opacity .3s ease, transform .25s ease, border-color .25s ease, box-shadow .25s ease;
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
}

.to-top.show { opacity: 1; pointer-events: auto; }
.to-top:hover { transform: translateY(-3px); border-color: var(--neon-3); box-shadow: 0 8px 24px -10px rgba(236, 72, 153, .45); color: var(--neon-3); }

/* 吐司 */
.toast {
    position: fixed;
    left: 50%; bottom: 46px;
    transform: translate(-50%, 16px);
    padding: 14px 28px;
    border-radius: 999px;
    font-size: 14px;
    color: #fff;
    background: rgba(8, 13, 24, .92);
    border: 1px solid var(--line-neon);
    box-shadow: 0 24px 60px -30px rgba(41, 231, 255, .95);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    opacity: 0;
    pointer-events: none;
    transition: opacity .3s ease, transform .3s ease;
    z-index: 90;
    max-width: min(88vw, 560px);
    text-align: center;
}

.toast.show { opacity: 1; transform: translate(-50%, 0); }

/* ============================ 子页面头 ============================ */
.page-hero { position: relative; z-index: 1; padding: 172px 0 26px; }



/* ============================ 弹窗（播放 / 上传 / 二维码） ============================ */
.mask {
    position: fixed;
    inset: 0;
    z-index: 100;
    display: none;
    align-items: center;
    justify-content: center;
    padding: 30px;
    background: rgba(2, 4, 10, .82);
    backdrop-filter: blur(14px) saturate(130%);
    -webkit-backdrop-filter: blur(14px) saturate(130%);
}

.mask.open { display: flex; }

.mask-close {
    position: fixed;
    top: 22px; right: 26px;
    width: 44px; height: 44px;
    border-radius: 50%;
    display: grid; place-items: center;
    cursor: pointer;
    color: var(--text-2);
    border: 1px solid var(--line-soft);
    background: rgba(8, 13, 24, .74);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    transition: color .22s ease, border-color .22s ease, transform .22s ease, box-shadow .22s ease;
    z-index: 3;
}

.mask-close:hover { color: #fff; border-color: var(--neon-3); box-shadow: var(--glow-pink); transform: rotate(90deg); }

.player-box { width: min(1080px, 100%); position: relative; z-index: 2; }

.player-box video {
    width: 100%;
    max-height: 74vh;
    background: #000;
    border-radius: 16px;
    border: 1px solid var(--line-neon);
    outline: none;
    box-shadow: 0 50px 120px -40px rgba(41, 231, 255, .75), 0 0 0 1px rgba(255, 255, 255, .05);
}

.player-head { display: flex; align-items: center; justify-content: space-between; gap: 20px; margin-bottom: 14px; }
.player-title { font-size: 18px; font-weight: 700; line-height: 1.5; }
.player-sub { font-size: 13px; color: var(--muted); margin-top: 4px; }

.player-tabs { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 16px; }

.player-tabs button {
    font-size: 13px;
    color: var(--text-2);
    padding: 7px 18px;
    border-radius: 999px;
    cursor: pointer;
    border: 1px solid var(--line-soft);
    background: linear-gradient(150deg, rgba(255, 255, 255, .08), rgba(255, 255, 255, .022));
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    transition: color .2s ease, border-color .2s ease, box-shadow .2s ease;
    font-family: inherit;
}

.player-tabs button.on {
    color: #03060E;
    background: var(--neon-grad);
    border-color: transparent;
    font-weight: 700;
    box-shadow: var(--glow-cyan);
}

.player-tabs button:not(.on):hover { color: #fff; border-color: var(--line-neon); }

.btn[disabled] { opacity: .45; cursor: not-allowed; transform: none !important; box-shadow: none; }

/* 二维码弹窗 */
.qr-box {
    position: relative;
    z-index: 2;
    width: min(400px, 100%);
    border-radius: 22px;
    padding: 34px 30px 28px;
    text-align: center;
    border: 1px solid var(--line-neon);
    background:
        radial-gradient(420px 220px at 50% -10%, rgba(41, 231, 255, .2), transparent 64%),
        linear-gradient(165deg, rgba(16, 22, 38, .94), rgba(6, 10, 20, .95));
    box-shadow: 0 50px 120px -40px rgba(41, 231, 255, .7);
}

.qr-box::before { opacity: .5; }

.qr-box h3 {
    font-size: 21px;
    font-weight: 800;
    margin-bottom: 6px;
    background: var(--neon-grad-2);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.qr-box .qr-tip { font-size: 13px; color: var(--muted); margin-bottom: 20px; }

.qr-box img {
    width: 232px;
    max-width: 100%;
    margin: 0 auto;
    border-radius: 14px;
    background: #fff;
    padding: 8px;
    box-shadow: 0 0 0 1px var(--line-neon), var(--glow-cyan), var(--glow-violet);
}

.qr-box .qr-name { margin-top: 18px; font-size: 14px; color: var(--text-2); }
.qr-box .qr-sub { margin-top: 6px; font-size: 12.5px; color: var(--muted-2); }

/* 滚动出现动画 */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .8s cubic-bezier(.22, .61, .36, 1), transform .8s cubic-bezier(.22, .61, .36, 1); }
.reveal.in { opacity: 1; transform: none; }

/* ============================ 服务详情页 ============================ */
/* FAQ 问答卡 */
.qa {
    padding: 26px 28px;
    border-radius: var(--radius);
    background: var(--glass);
    border: 1px solid var(--line-soft);
    backdrop-filter: blur(var(--blur)) saturate(155%);
    -webkit-backdrop-filter: blur(var(--blur)) saturate(155%);
    transition: border-color .3s ease, box-shadow .3s ease, transform .3s ease;
}

.qa:hover { border-color: var(--line-neon); box-shadow: var(--glow-cyan); transform: translateY(-3px); }

.qa-q { font-size: 15px; font-weight: 700; margin-bottom: 10px; display: flex; gap: 12px; align-items: flex-start; line-height: 1.6; }

.qa-q::before {
    content: "Q";
    flex-shrink: 0;
    width: 22px; height: 22px;
    border-radius: 7px;
    display: grid;
    place-items: center;
    font-size: 12px;
    font-weight: 800;
    color: var(--neon-1);
    border: 1px solid var(--line-neon);
    background: rgba(41, 231, 255, .08);
    margin-top: 1px;
}

.qa-a { font-size: 14px; color: var(--muted); line-height: 1.95; }
.qa-a b { color: var(--text-2); font-weight: 700; }

/* 页脚链接 */
.footer-inner a { color: var(--muted-2); transition: color .22s ease, text-shadow .22s ease; }
.footer-inner a:hover { color: var(--neon-1); text-shadow: 0 0 14px rgba(41, 231, 255, .5); }

/* 尊重系统「减少动态效果」设置 */
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    .reveal { opacity: 1; transform: none; transition: none; }
    .scroll-hint i { animation: none; }
    body::before { animation: none; }
    .card, .toc-item, .tier, .btn, .nav-cta, .to-top, .stat { transition: none; }
}

/* ============================ 自适应 ============================ */
html.is-mobile {
    .nav-links { gap: 18px; }
    .nav-links a { font-size: 13.5px; }
}

@media (max-height: 880px) {
    .scroll-hint { display: none; }
}

html.is-mobile {
    .toc-grid { grid-template-columns: repeat(3, 1fr); }
    .g4 { grid-template-columns: repeat(2, 1fr); }
    .steps { grid-template-columns: repeat(3, 1fr); row-gap: 38px; }
    .steps::before { display: none; }
}

html.is-mobile {
    .nav-links { display: none; }
    .g3, .g2 { grid-template-columns: 1fr; }
    .hero-stats { grid-template-columns: 1fr; }
    .hero { padding-top: 128px; min-height: auto; }
    .section { padding: 78px 0; }
    .contact-box { padding: 46px 26px; }
    .toc-grid { grid-template-columns: repeat(2, 1fr); }
}

html.is-mobile {
    .wrap, .nav-inner { padding: 0 18px; }
    .toc-grid, .g4, .steps { grid-template-columns: 1fr; }
    table.price, table.compare { font-size: 13px; }
    table.price thead th, table.price tbody td, table.compare thead th, table.compare tbody td { padding: 12px 12px; }
    .mask { padding: 14px; }
    .contact-card.qr { flex-direction: column; text-align: center; }
}

/* ============================ 红果在播作品 ============================ */
.work-card {
    display: grid;
    grid-template-columns: 320px 1fr;
    gap: 46px;
    align-items: center;
    padding: 34px;
    border-radius: 26px;
    border: 1px solid var(--line-soft);
    background: var(--glass);
    backdrop-filter: blur(var(--blur)) saturate(155%);
    -webkit-backdrop-filter: blur(var(--blur)) saturate(155%);
    box-shadow: var(--shadow);
    position: relative;
    overflow: hidden;
}

.work-card::before {
    content: "";
    position: absolute;
    inset: -40% -20% auto auto;
    width: 520px;
    height: 520px;
    background: radial-gradient(circle, rgba(123, 92, 255, .22), transparent 62%);
    pointer-events: none;
}

/* 竖版海报 */
.work-poster {
    position: relative;
    display: block;
    aspect-ratio: 760 / 1113;
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid rgba(255, 196, 107, .34);
    box-shadow: 0 26px 60px -28px rgba(0, 0, 0, .95), 0 0 46px -18px rgba(255, 196, 107, .5);
    transition: transform .45s cubic-bezier(.22, .61, .36, 1), box-shadow .45s ease, border-color .45s ease;
}

.work-poster img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform .6s cubic-bezier(.22, .61, .36, 1);
}

.work-poster:hover {
    transform: translateY(-6px);
    border-color: rgba(255, 196, 107, .72);
    box-shadow: 0 34px 74px -28px rgba(0, 0, 0, .95), 0 0 62px -14px rgba(255, 196, 107, .72);
}

.work-poster:hover img { transform: scale(1.045); }

.work-poster::after {
    content: "";
    position: absolute;
    inset: auto 0 0 0;
    height: 34%;
    background: linear-gradient(180deg, transparent, rgba(4, 6, 12, .82));
    pointer-events: none;
}

.work-play {
    position: absolute;
    left: 50%;
    bottom: 22px;
    transform: translateX(-50%);
    z-index: 2;
    display: inline-flex;
    align-items: center;
    gap: 9px;
    padding: 9px 20px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 700;
    color: #0A0800;
    background: linear-gradient(115deg, #FFE29A, #FFC46B 55%, #FF9E3D);
    box-shadow: 0 12px 30px -12px rgba(255, 196, 107, .95);
    white-space: nowrap;
    transition: transform .3s ease, box-shadow .3s ease;
}

.work-play i {
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 5px 0 5px 8px;
    border-color: transparent transparent transparent #0A0800;
}

.work-poster:hover .work-play {
    transform: translateX(-50%) scale(1.06);
    box-shadow: 0 16px 38px -12px rgba(255, 196, 107, 1);
}

/* 右侧信息 */
.work-info { position: relative; z-index: 1; min-width: 0; }

.work-plat {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    padding: 6px 15px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 700;
    letter-spacing: .06em;
    color: #FFD79A;
    border: 1px solid rgba(255, 196, 107, .38);
    background: rgba(255, 196, 107, .09);
    margin-bottom: 18px;
}

.work-plat .plat-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: #FF5B5B;
    box-shadow: 0 0 12px 2px rgba(255, 91, 91, .9);
    animation: pulse-dot 1.6s ease-in-out infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: .45; transform: scale(.78); }
}

.work-title {
    font-size: 40px;
    line-height: 1.16;
    font-weight: 800;
    letter-spacing: .02em;
    margin-bottom: 16px;
    background: linear-gradient(115deg, #FFF6E2 0%, #FFC46B 58%, #FF9E3D 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    color: #FFC46B;
}

.work-tags { display: flex; flex-wrap: wrap; gap: 9px; margin-bottom: 22px; }

.work-tags span {
    padding: 5px 13px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
    color: var(--text-2);
    border: 1px solid var(--line-soft);
    background: rgba(255, 255, 255, .05);
}

.work-tags span:first-child {
    color: var(--neon-1);
    border-color: var(--line-neon);
    background: rgba(41, 231, 255, .1);
}

.work-stats {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 22px;
}

.work-stats > div {
    flex: 1 1 128px;
    padding: 14px 16px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--line-soft);
    background: rgba(255, 255, 255, .035);
}

.work-stats b {
    display: block;
    font-size: 21px;
    font-weight: 800;
    color: var(--neon-1);
    letter-spacing: .01em;
    margin-bottom: 5px;
}

.work-stats span { font-size: 12px; color: var(--muted); }

.work-desc {
    font-size: 14.5px;
    line-height: 2.05;
    color: var(--text-2);
    margin-bottom: 26px;
    max-width: 620px;
}

.work-desc em { font-style: normal; color: var(--neon-5); font-weight: 700; }

.work-acts { display: flex; flex-wrap: wrap; align-items: center; gap: 14px; }

.work-copy-tip {
    font-size: 12.5px;
    color: var(--neon-4);
    opacity: 0;
    transition: opacity .3s ease;
}

.work-copy-tip.on { opacity: 1; }

html.is-mobile {
    .work-card { grid-template-columns: 260px 1fr; gap: 32px; padding: 26px; }
    .work-title { font-size: 32px; }
}

html.is-mobile {
    .work-card { grid-template-columns: 1fr; gap: 26px; }
    .work-poster { max-width: 300px; margin: 0 auto; }
    .work-title { font-size: 28px; }
    .work-stats > div { flex: 1 1 100px; }
}

/* ============================ 作品集锦：竖屏/横屏 ============================ */
.videos-sub { margin-top: 52px; }
.videos-sub:first-of-type { margin-top: 36px; }

.sub-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--line-soft);
}

.sub-left { display: flex; align-items: center; gap: 12px; }

.sub-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    flex: none;
}
.sub-dot.p {
    background: linear-gradient(135deg, var(--neon-3), var(--neon-1));
    box-shadow: 0 0 14px 2px rgba(255, 79, 216, .55);
}
.sub-dot.l {
    background: linear-gradient(135deg, var(--neon-5), #FF7A2B);
    box-shadow: 0 0 14px 2px rgba(255, 196, 107, .55);
}

.sub-head h3 {
    font-size: 22px;
    font-weight: 700;
    color: var(--text);
    letter-spacing: .02em;
}

.sub-meta {
    font-size: 13px;
    color: var(--muted);
    letter-spacing: .04em;
}

.video-grid { display: grid; gap: 22px; }

.grid-portrait { grid-template-columns: repeat(4, 1fr); }
.grid-landscape { grid-template-columns: repeat(2, 1fr); }

.video-card {
    position: relative;
    display: block;
    border-radius: 14px;
    overflow: hidden;
    background: rgba(255, 255, 255, .035);
    border: 1px solid var(--line-soft);
    cursor: pointer;
    transition: transform .4s cubic-bezier(.22, .61, .36, 1), box-shadow .4s ease, border-color .4s ease;
    box-shadow: 0 18px 44px -28px rgba(0, 0, 0, .9);
}

.grid-portrait .video-card { aspect-ratio: 9 / 16; }
.grid-landscape .video-card { aspect-ratio: 16 / 9; }

.video-card:hover {
    transform: translateY(-6px);
    border-color: var(--line-neon);
    box-shadow: 0 28px 60px -28px rgba(0, 0, 0, .95), 0 0 36px -10px rgba(41, 231, 255, .55);
}

.video-card img,
.video-card video {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform .55s cubic-bezier(.22, .61, .36, 1);
}

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

.video-card::after {
    content: "";
    position: absolute;
    inset: auto 0 0 0;
    height: 36%;
    background: linear-gradient(180deg, transparent, rgba(2, 4, 10, .7));
    pointer-events: none;
    z-index: 1;
    opacity: .55;
    transition: opacity .35s ease;
}

.video-play {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 2;
    width: 58px;
    height: 58px;
    border-radius: 50%;
    background: rgba(8, 12, 22, .55);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    border: 1.5px solid rgba(255, 255, 255, .8);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background .3s ease, transform .35s cubic-bezier(.22, .61, .36, 1), border-color .3s ease, opacity .3s ease;
    opacity: 0;
}

.video-play::before {
    content: "";
    width: 0;
    height: 0;
    border-style: solid;
    border-width: 9px 0 9px 14px;
    border-color: transparent transparent transparent #fff;
    margin-left: 4px;
}

.video-card:hover .video-play,
.video-card:focus-visible .video-play {
    opacity: 1;
}

.video-card:hover .video-play {
    background: var(--neon-1);
    border-color: var(--neon-1);
    transform: translate(-50%, -50%) scale(1.12);
    box-shadow: 0 0 32px -4px rgba(41, 231, 255, .8);
}
.video-card:hover .video-play::before { border-color: transparent transparent transparent #0A0800; }

.video-card:hover::after { opacity: .85; }

.video-empty {
    padding: 36px 18px;
    text-align: center;
    color: var(--muted);
    font-size: 14px;
    border: 1px dashed var(--line-soft);
    border-radius: 14px;
    background: rgba(255, 255, 255, .02);
}

/* 未命名占位（标题待录） */
.video-card.is-unnamed .video-title {
    color: rgba(255, 255, 255, .72);
    font-weight: 500;
    font-style: italic;
    letter-spacing: .02em;
}
.video-card.is-unnamed .video-title::before {
    content: "• ";
    color: var(--neon-5);
    font-style: normal;
    margin-right: 2px;
}

/* 弹窗播放器 */
.video-modal {
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: rgba(2, 4, 10, .88);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity .3s ease;
    padding: 28px;
}
.video-modal.on { opacity: 1; pointer-events: auto; }

.video-modal-inner {
    position: relative;
    width: min(94vw, 1280px);
    max-height: 88vh;
    background: #000;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 30px 80px rgba(0, 0, 0, .6);
    display: flex;
    align-items: center;
    justify-content: center;
}

.video-modal video {
    width: 100%;
    max-height: 88vh;
    display: block;
    background: #000;
}

.video-modal .video-meta {
    position: absolute;
    left: 0;
    right: 0;
    bottom: 0;
    padding: 56px 26px 18px;
    background: linear-gradient(180deg, transparent, rgba(0, 0, 0, .85));
    color: #fff;
    font-size: 15px;
    font-weight: 600;
    pointer-events: none;
    z-index: 1;
}

.video-modal .close-btn {
    position: absolute;
    top: -54px;
    right: 0;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: rgba(255, 255, 255, .14);
    border: 1px solid rgba(255, 255, 255, .32);
    color: #fff;
    font-size: 22px;
    line-height: 1;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background .2s ease, transform .2s ease;
}
.video-modal .close-btn:hover { background: rgba(255, 255, 255, .3); transform: rotate(90deg); }

.video-modal.is-portrait .video-modal-inner { width: min(72vh, 460px); }
.video-modal.is-landscape .video-modal-inner { width: min(94vw, 1280px); }

html.is-mobile {
    .grid-portrait { grid-template-columns: repeat(3, 1fr); }
    .grid-landscape { grid-template-columns: 1fr; }
    .sub-meta { display: none; }
}

html.is-mobile {
    .videos-sub { margin-top: 36px; }
    .sub-head h3 { font-size: 18px; }
    .grid-portrait { grid-template-columns: repeat(2, 1fr); gap: 14px; }
    .grid-landscape { grid-template-columns: 1fr; gap: 16px; }
    .video-card { border-radius: 10px; }
    .video-play { width: 44px; height: 44px; }
    .video-play::before { border-width: 7px 0 7px 11px; }
    .video-title { font-size: 12.5px; left: 10px; right: 10px; bottom: 9px; }
    .grid-landscape .video-title { font-size: 14px; left: 14px; right: 14px; bottom: 12px; }
    .video-modal { padding: 12px; }
    .video-modal .close-btn { top: -48px; width: 36px; height: 36px; font-size: 18px; }
    .video-modal .video-meta { font-size: 13px; padding: 44px 18px 12px; }
}

/* ============================ 移动端横向溢出防护 ============================ */
/* 根因：.hero 是 flex 容器，.wrap 作为 flex item 默认 min-width:auto，
   会被里面的长内容（如不换行的 .hero-eyebrow）撑宽，导致右侧被 body 的
   overflow-x:hidden 裁掉。这里统一放开 min-width 并让长内容可换行。 */
html.is-mobile .wrap,
html.is-mobile .nav-inner,
html.is-mobile .hero,
html.is-mobile .hero-inner,
html.is-mobile .sec-head { min-width: 0; }

/* 首屏 eyebrow：允许换行 + 收紧字距，不再撑宽容器 */
html.is-mobile .hero-eyebrow {
    flex-wrap: wrap;
    white-space: normal;
    font-size: 11px;
    letter-spacing: .15em;
    gap: 8px;
    margin-bottom: 18px;
}
html.is-mobile .hero-eyebrow::before { width: 28px; }

/* 首屏：收紧上下留白，装饰圈收小 */
html.is-mobile .hero { padding: 100px 0 62px; min-height: auto; }
html.is-mobile .hero::before { width: 78vw; height: 78vw; right: -24%; top: 6%; filter: blur(34px); }
html.is-mobile .hero::after { bottom: 3%; }

/* 按钮：首屏按钮独占一行、居中，避免右侧被裁 */
html.is-mobile .hero-actions { gap: 12px; }
html.is-mobile .hero-actions .btn { flex: 1 1 100%; justify-content: center; }
html.is-mobile .btn { padding: 13px 24px; font-size: 14.5px; white-space: normal; text-align: center; }

/* 顶部导航：副标题允许换行，CTA 收紧 */
html.is-mobile .brand-sub { white-space: normal; letter-spacing: .06em; }
html.is-mobile .nav-cta { padding: 9px 16px; font-size: 13px; }

/* 表格容器：允许横向滚动，而不是撑破页面 */
html.is-mobile .table-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }

/* 长英文 / 长 URL 强制断行，避免任何元素溢出 */
html.is-mobile .sec-desc,
html.is-mobile .sec-title,
html.is-mobile .card,
html.is-mobile .work-title { overflow-wrap: break-word; word-break: break-word; }

/* 首屏信息条：flex 子项 min-width:auto 会把容器顶宽，这里放开收缩 + 允许断行 */
html.is-mobile .hero-companies {
    width: 100%;
    max-width: 100%;
    min-width: 0;
    gap: 4px 10px;
    font-size: 13px;
    margin-bottom: 28px;
}
html.is-mobile .hero-companies > * {
    min-width: 0;
    overflow-wrap: break-word;
    word-break: break-word;
}

/* 通用兜底：移动端下所有 flex/grid 子项都允许收缩，避免被长内容顶开 */
html.is-mobile .hero-inner > *,
html.is-mobile .split > *,
html.is-mobile .g2 > *,
html.is-mobile .g3 > *,
html.is-mobile .g4 > * { min-width: 0; }

/* ============================ 移动端底部 Tab 导航 ============================ */
/* 顶部导航整体隐藏（ua-detect.js 会在 body 末尾注入 .mnav） */
html.is-mobile .nav { display: none !important; }

.mnav {
    position: fixed;
    left: 0; right: 0; bottom: 0;
    z-index: 80;
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 2px;
    padding: 7px 6px calc(7px + env(safe-area-inset-bottom, 0px));
    background: rgba(5, 8, 16, .86);
    backdrop-filter: blur(22px) saturate(170%);
    -webkit-backdrop-filter: blur(22px) saturate(170%);
    border-top: 1px solid rgba(41, 231, 255, .18);
    box-shadow: 0 -14px 44px -28px rgba(41, 231, 255, .55);
}
.mnav a {
    min-width: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3px;
    padding: 6px 0 4px;
    border-radius: 12px;
    color: rgba(232, 240, 254, .58);
    font-size: 10.5px;
    letter-spacing: .04em;
    text-decoration: none;
    -webkit-tap-highlight-color: transparent;
    transition: color .25s ease;
}
.mnav a svg { width: 21px; height: 21px; }
.mnav a.active { color: var(--neon-1); }
.mnav a.active svg { filter: drop-shadow(0 0 7px rgba(41, 231, 255, .6)); }
.mnav a:active { color: var(--neon-2); }

/* 底部留白，避免内容被 Tab 栏盖住（iPhone 全面屏含安全区） */
html.is-mobile body { padding-bottom: calc(68px + env(safe-area-inset-bottom, 0px)) !important; }

/* 回顶按钮上移，避开底部 Tab 栏 */
html.is-mobile .to-top { right: 14px; bottom: calc(88px + env(safe-area-inset-bottom, 0px)); }

/* 顶部导航隐藏后，收紧各页头部留白 */
html.is-mobile .hero { padding: 72px 0 62px; }
html.is-mobile .page-hero { padding: 64px 0 22px; }

/* ============================ 移动端 App 化排版 ============================ */
/* 思路：手机上不照搬 PC 版式，而是按原生 App 的阅读习惯重排——
   单列流式、标题居中、字号适配触控阅读、表格转卡片、按钮通栏可点。
   本区块全部使用 html.is-mobile 前缀的平铺选择器，置于文件末尾以覆盖前面的 PC 规则。 */

/* —— 全局阅读节奏：更紧凑、更居中 —— */
html.is-mobile body { font-size: 15px; line-height: 1.72; }
html.is-mobile .section { padding: 52px 0; }
html.is-mobile .sec-head { margin-bottom: 30px; text-align: center; }
html.is-mobile .sec-head-top { flex-direction: column; align-items: center; gap: 12px; margin-bottom: 12px; }
html.is-mobile .sec-eyebrow { justify-content: center; margin-bottom: 8px; font-size: 11px; letter-spacing: .2em; }
html.is-mobile .sec-eyebrow .idx { font-size: 16px; }
html.is-mobile .sec-eyebrow .bar { width: 22px; }
html.is-mobile .sec-title { font-size: 24px; line-height: 1.45; letter-spacing: 0; }
html.is-mobile .sec-desc { margin: 12px auto 0; font-size: 13.5px; line-height: 1.85; }
html.is-mobile .page-hero { padding: 54px 0 14px; }

/* —— 首屏：居中式手机落地页 —— */
html.is-mobile .hero { padding: 56px 0 48px; text-align: center; }
html.is-mobile .hero::before { opacity: .55; }
html.is-mobile .hero-eyebrow { justify-content: center; margin-bottom: 14px; }
html.is-mobile .hero-eyebrow::before { display: none; }
html.is-mobile .hero h1 { font-size: 30px; line-height: 1.38; letter-spacing: 0; margin-bottom: 16px; }
html.is-mobile .hero-tags { justify-content: center; gap: 8px; margin-bottom: 24px; font-size: 13px; }
html.is-mobile .hero-tags span,
html.is-mobile .hero-tags a { padding: 6px 13px; }
html.is-mobile .hero-companies { justify-content: center; text-align: center; padding-top: 16px; margin-bottom: 26px; }
html.is-mobile .hero-actions { justify-content: center; }

/* —— 按钮：通栏、触控高度 —— */
html.is-mobile .btn { display: flex; justify-content: center; width: 100%; min-height: 48px; padding: 13px 22px; font-size: 15px; border-radius: 14px; }
html.is-mobile .wrap .btn { flex: 1 1 100%; }

/* —— 卡片与网格：单列流、圆角卡片 —— */
html.is-mobile .grid { gap: 14px; }
html.is-mobile .card,
html.is-mobile .toc-item,
html.is-mobile .stat,
html.is-mobile .tier { padding: 20px 18px; border-radius: 18px; }
html.is-mobile .card-title { font-size: 16.5px; margin-bottom: 10px; }
html.is-mobile .list li { font-size: 14px; line-height: 1.9; padding-left: 16px; }
html.is-mobile .quote { padding: 18px 20px; font-size: 13.5px; border-radius: 16px; }
html.is-mobile .tier h3 { font-size: 17px; }
html.is-mobile .contact-box { padding: 30px 20px 26px; border-radius: 20px; }
html.is-mobile .contact-box h2 { font-size: 21px; line-height: 1.4; }
html.is-mobile .contact-box p { margin: 0 auto 22px; font-size: 13.5px; }

/* —— 合作流程：竖向时间线 —— */
/* service-ai.html 的 .steps 带内联 grid-template-columns，必须 !important 才能覆盖成单列 */
html.is-mobile .steps { grid-template-columns: 1fr !important; gap: 12px; }
html.is-mobile .steps > * { min-width: 0; }
html.is-mobile .step { padding: 0 0 0 62px; display: flex; flex-direction: column; justify-content: center; min-height: 52px; }
html.is-mobile .step h4,
html.is-mobile .step p { overflow-wrap: break-word; word-break: break-word; }
html.is-mobile .step .no { top: 50%; transform: translateY(-50%); width: 44px; height: 44px; font-size: 16px; }
html.is-mobile .step h4 { font-size: 15.5px; }
html.is-mobile .step p { font-size: 13px; line-height: 1.8; }

/* —— 表格 → 卡片（配合 ua-detect.js 注入的 data-label）—— */
html.is-mobile .table-wrap { overflow: visible; box-shadow: none; border-radius: 0; }
html.is-mobile table.m-cards { display: block; width: 100%; font-size: 13.5px; }
html.is-mobile table.m-cards thead { display: none; }
html.is-mobile table.m-cards tbody { display: block; }
html.is-mobile table.m-cards tbody tr {
    display: block;
    margin-bottom: 12px;
    padding: 12px 16px 6px;
    border: 1px solid var(--line-soft);
    border-radius: 16px;
    background: linear-gradient(160deg, rgba(255, 255, 255, .05), rgba(255, 255, 255, .015));
}
html.is-mobile table.m-cards tbody tr:last-child { margin-bottom: 0; }
html.is-mobile table.m-cards tbody td {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 16px;
    padding: 7px 0;
    border: 0;
    width: auto;
    background: none;
    text-align: right;
    font-size: 13.5px;
    color: var(--text-2);
}
html.is-mobile table.m-cards tbody td::before {
    content: attr(data-label);
    flex: none;
    font-size: 11px;
    letter-spacing: .08em;
    color: var(--muted);
    text-align: left;
}
html.is-mobile table.m-cards tbody td:first-child { justify-content: flex-start; }
html.is-mobile table.m-cards td.price-now { font-size: 14.5px; }
html.is-mobile table.m-cards td.price-old { font-size: 12.5px; }
html.is-mobile .table-note { margin-top: 14px; font-size: 12px; line-height: 1.7; }

/* —— 页脚：移动端整体隐藏（页脚承载的信息由底部 Tab 栏 + 正文链接覆盖，
      服务子页在 index / business 正文中均有入口，不会断链）—— */
html.is-mobile .footer { display: none; }