/* ==========================================================
   旌渝数科 · 企业官网样式
   设计语言：近纯黑底 + 单一冷色强调 + 细边框 + 线性图标
   去 AI 味：无霓虹发光、无数字雨/扫描线、无满屏网格、无堆砌特效
   ========================================================== */

:root {
    /* ============ VI 手册官方色（page 09 A3.02 规范） ============
       标准色：紫 #522C8C · 青 #63C3DC · 黑 #000000
       辅助色：灰 #D8D9D9 · 深蓝 #0D4697
       标志为 紫→青 渐变（page 03 A1.01）
    */
    --brand-purple: #522C8C;
    --brand-cyan:   #63C3DC;
    --brand-blue:   #0D4697;
    --brand-gray:   #D8D9D9;
    --brand-black:  #000000;

    /* 品牌渐变（呼应标志的紫→青） */
    --grad-brand: linear-gradient(135deg, #522C8C 0%, #63C3DC 100%);
    --grad-brand-h: linear-gradient(90deg, #522C8C 0%, #63C3DC 100%);
    --grad-soft:   linear-gradient(135deg, rgba(82,44,140,0.12), rgba(99,195,220,0.04));

    /* 底色（以 VI 黑色为基调，做层次） */
    --bg:        #000000;
    --bg-soft:   #0a0a0a;
    --bg-elev:   #131316;
    --bg-input:  #0e0e10;

    /* 边框 */
    --border:        rgba(255, 255, 255, 0.08);
    --border-strong: rgba(255, 255, 255, 0.16);

    /* 文字 */
    --text:   #ffffff;
    --text-2: #b3b3b6;
    --text-3: #6f6f73;

    /* 强调色：VI 紫作主，呼应标志主色 */
    --accent:      #522C8C;
    --accent-2:    #63C3DC;
    --accent-press:#3D1F6E;
    --accent-soft: rgba(82, 44, 140, 0.12);
    --accent-line: rgba(82, 44, 140, 0.40);
    --accent-cyan-soft: rgba(99, 195, 220, 0.12);

    /* 变体（产品 / 标签 / 小色点） */
    --v-cyan:   #63C3DC;
    --v-purple: #522C8C;
    --v-blue:   #0D4697;

    --radius:   12px;
    --radius-sm: 8px;
    --header-h: 64px;
    --max-w:    1160px;
    --ease:     cubic-bezier(0.22, 1, 0.36, 1);

    --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
                 "Microsoft YaHei", "Hiragino Sans GB", Roboto, Helvetica, Arial, sans-serif;
    --font-mono: ui-monospace, SFMono-Regular, "JetBrains Mono", "Cascadia Code",
                 Consolas, "Liberation Mono", Menlo, monospace;
}

/* ============ Reset ============ */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: var(--header-h); background: var(--bg); }
body {
    font-family: var(--font-sans);
    background: transparent;
    color: var(--text-2);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
    overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
img, video { max-width: 100%; display: block; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
::selection { background: rgba(82, 44, 140, 0.45); color: #fff; }

/* 滚动条 */
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: #2a2e35; border-radius: 5px; }
::-webkit-scrollbar-thumb:hover { background: #3a3f47; }

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

/* 顶部品牌光晕：紫→青（呼应 VI 标志渐变） */
body::before {
    content: ''; position: fixed; top: -260px; left: 50%; transform: translateX(-50%);
    width: 1200px; height: 600px; z-index: -1; pointer-events: none;
    background:
        radial-gradient(ellipse at center, rgba(82, 44, 140, 0.22), transparent 65%),
        radial-gradient(ellipse 40% 50% at 72% 50%, rgba(99, 195, 220, 0.10), transparent 60%);
    filter: blur(20px);
}

/* ============ 导航 ============ */
.header {
    position: fixed; top: 0; left: 0; right: 0; z-index: 1000; height: var(--header-h);
    background: rgba(0, 0, 0, 0.72);
    backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
    border-bottom: 1px solid transparent;
    transition: background 0.3s, border-color 0.3s;
}
.header.scrolled { background: rgba(0, 0, 0, 0.92); border-bottom-color: var(--border); }
.nav { display: flex; align-items: center; justify-content: space-between; height: 100%; }

.logo { display: flex; align-items: center; gap: 11px; }
.logo-mark {
    width: 36px; height: 36px; border-radius: 8px; flex-shrink: 0;
    background: var(--grad-brand);
    display: flex; align-items: center; justify-content: center;
    overflow: hidden;
}
.logo-svg { width: 100%; height: 100%; display: block; }
.logo-text { font-size: 17px; font-weight: 700; color: var(--text); letter-spacing: 0.3px; }

.nav-menu { display: flex; align-items: center; gap: 2px; }
.nav-menu a {
    position: relative; padding: 8px 16px; font-size: 14.5px; font-weight: 500;
    color: var(--text-2); border-radius: 8px; transition: color 0.2s, background 0.2s;
}
.nav-menu a:hover { color: var(--text); background: rgba(255, 255, 255, 0.04); }
.nav-menu a.active { color: var(--text); }
.nav-menu a.active::after {
    content: ''; position: absolute; left: 16px; right: 16px; bottom: 2px; height: 2px;
    background: var(--accent); border-radius: 2px;
}
.nav-cta { margin-left: 12px; }

.nav-toggle { display: none; flex-direction: column; gap: 5px; padding: 8px; cursor: pointer; }
.nav-toggle span { width: 22px; height: 2px; background: var(--text); border-radius: 2px; transition: 0.3s; }
.nav-toggle.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: rotate(-45deg) translate(7px, -7px); }

/* ============ 按钮 ============ */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 8px;
    padding: 12px 24px; border-radius: var(--radius-sm); font-size: 14.5px; font-weight: 600;
    letter-spacing: 0.3px; white-space: nowrap;
    transition: transform 0.2s var(--ease), background 0.2s, border-color 0.2s, color 0.2s;
}
.btn .icon { width: 17px; height: 17px; }
.btn-primary { background: var(--grad-brand); color: #ffffff; box-shadow: 0 4px 16px rgba(82, 44, 140, 0.25); }
.btn-primary:hover { background: var(--grad-brand-h); transform: translateY(-2px); box-shadow: 0 10px 30px rgba(82, 44, 140, 0.45), 0 0 24px rgba(99, 195, 220, 0.4); }
.btn-ghost { border: 1px solid var(--border-strong); color: var(--text); background: rgba(255, 255, 255, 0.02); }
.btn-ghost:hover { border-color: var(--accent-line); color: var(--text); background: var(--accent-soft); transform: translateY(-2px); }
.btn-sm { padding: 9px 16px; font-size: 13.5px; }

/* ============ 图标容器 ============ */
.icon { display: inline-flex; align-items: center; justify-content: center; flex-shrink: 0; }
.icon svg { width: 100%; height: 100%; }

/* ============ Hero ============ */
.hero {
    min-height: 100vh; display: flex; align-items: center; position: relative;
    padding: 120px 0 90px;
    background:
        radial-gradient(ellipse 70% 55% at 78% 18%, rgba(99, 195, 220, 0.10), transparent 60%),
        radial-gradient(ellipse 60% 50% at 12% 30%, rgba(82, 44, 140, 0.08), transparent 60%);
}
.hero-inner { max-width: 820px; }
.hero-tag {
    display: inline-flex; align-items: center; gap: 8px; padding: 6px 14px;
    border: 1px solid var(--border); border-radius: 999px;
    font-family: var(--font-mono); font-size: 12px; color: var(--accent);
    background: rgba(255, 255, 255, 0.02); margin-bottom: 26px;
}
.hero-tag .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); }
.hero h1 {
    font-size: 60px; line-height: 1.08; font-weight: 800; color: var(--text);
    letter-spacing: -1.5px; margin-bottom: 22px;
}
.hero h1 .accent { color: var(--accent); }
.hero-type {
    font-family: var(--font-mono); font-size: 22px; color: var(--text-2);
    font-weight: 500; min-height: 30px; margin-bottom: 24px;
}
.hero-type .caret { color: var(--accent); animation: blink 1s step-end infinite; }
@keyframes blink { 50% { opacity: 0; } }
.hero-sub {
    font-size: 17px; color: var(--text-2); max-width: 600px; margin-bottom: 38px;
    line-height: 1.8;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.hero-stats {
    display: flex; gap: 52px; margin-top: 72px; flex-wrap: wrap;
    padding-top: 40px; border-top: 1px solid var(--border);
}
.hero-stat .num {
    font-family: var(--font-mono); font-size: 38px; font-weight: 700; color: var(--text);
    letter-spacing: -1px; font-variant-numeric: tabular-nums;
}
.hero-stat .num .suffix { color: var(--accent); font-size: 24px; margin-left: 1px; }
.hero-stat .label { font-size: 13px; color: var(--text-3); margin-top: 4px; }

/* ============ Section ============ */
.section { padding: 104px 0; }
.section-head { max-width: 640px; margin-bottom: 56px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.eyebrow {
    font-family: var(--font-mono); font-size: 12px; letter-spacing: 2.5px;
    text-transform: uppercase; color: var(--accent); margin-bottom: 14px;
}
.section-title { font-size: 38px; font-weight: 800; color: var(--text); letter-spacing: -0.8px; line-height: 1.2; }
.section-sub { font-size: 16px; color: var(--text-3); margin-top: 14px; }

/* ============ 网格 ============ */
.grid { display: grid; gap: 22px; }
.grid-4 { grid-template-columns: repeat(4, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

/* ============ 卡片（基础） ============ */
.card {
    background: var(--bg-soft); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 30px 26px;
    transition: transform 0.3s var(--ease), border-color 0.3s, background 0.3s;
}
.card:hover { transform: translateY(-4px); border-color: var(--border-strong); background: var(--bg-elev); }

/* 图标徽标 */
.icon-badge {
    width: 48px; height: 48px; border-radius: 11px; margin-bottom: 20px;
    display: flex; align-items: center; justify-content: center;
    background: var(--accent-soft); border: 1px solid var(--accent-line);
    color: var(--accent);
}
.icon-badge .icon { width: 24px; height: 24px; }

/* 特性 */
.feature h3 { font-size: 17px; font-weight: 700; color: var(--text); margin-bottom: 10px; }
.feature p { font-size: 14px; color: var(--text-3); line-height: 1.75; }

/* ============ 产品 ============ */
.product { display: flex; flex-direction: column; cursor: pointer; overflow: hidden; padding: 0; }
.product-top {
    height: 156px; display: flex; align-items: center; justify-content: center;
    border-bottom: 1px solid var(--border); position: relative;
    background:
        radial-gradient(circle at 50% 40%, var(--accent-soft), transparent 70%),
        var(--bg-soft);
}
.product.accent-purple .product-top { background: radial-gradient(circle at 50% 40%, rgba(82,44,140,0.18), transparent 70%), var(--bg-soft); }
.product.accent-blue   .product-top { background: radial-gradient(circle at 50% 40%, rgba(106,169,224,0.12), transparent 70%), var(--bg-soft); }
.product-top .icon { width: 52px; height: 52px; color: var(--accent); }
.product.accent-purple .product-top .icon { color: var(--v-purple); }
.product.accent-blue   .product-top .icon { color: var(--v-blue); }
.product-body { padding: 24px; display: flex; flex-direction: column; flex: 1; }
.tag {
    display: inline-block; font-family: var(--font-mono); font-size: 11px; letter-spacing: 1.5px;
    text-transform: uppercase; color: var(--accent); margin-bottom: 12px;
}
.product.accent-purple .tag { color: var(--v-purple); }
.product.accent-blue   .tag { color: var(--v-blue); }
.product-body h3 { font-size: 18px; font-weight: 700; color: var(--text); margin-bottom: 10px; }
.product-body .desc { font-size: 13.5px; color: var(--text-3); line-height: 1.7; margin-bottom: 18px; flex: 1; }
.chips { display: flex; flex-wrap: wrap; gap: 7px; }
.chips span {
    font-family: var(--font-mono); font-size: 11px; color: var(--text-2);
    padding: 3px 9px; border: 1px solid var(--border); border-radius: 5px; background: rgba(255,255,255,0.02);
}
.product-foot { display: flex; align-items: center; gap: 16px; margin-top: 20px; padding-top: 18px; border-top: 1px solid var(--border); }
.link-btn { display: inline-flex; align-items: center; gap: 6px; font-size: 13.5px; font-weight: 600; color: var(--accent); }
.link-btn .icon { width: 15px; height: 15px; }
.link-btn:hover { color: var(--accent-press); }
.video-pill {
    display: inline-flex; align-items: center; gap: 5px; font-size: 12px; font-weight: 600;
    color: var(--text-2); padding: 4px 10px; border: 1px solid var(--border-strong); border-radius: 999px;
}
.video-pill .icon { width: 13px; height: 13px; color: #e06a6a; }

/* ============ 数据统计带 ============ */
.stats-band { border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); background: var(--bg-soft); }
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; padding: 64px 0; }
.stat { text-align: center; }
.stat .num {
    font-family: var(--font-mono); font-size: 46px; font-weight: 700; color: var(--text);
    letter-spacing: -1.5px; font-variant-numeric: tabular-nums;
}
.stat .num .suffix { color: var(--accent); font-size: 28px; }
.stat .label { font-size: 13.5px; color: var(--text-3); margin-top: 8px; }

/* ============ 案例轮播 ============ */
.carousel { position: relative; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; background: var(--bg-soft); }
.carousel-track { display: flex; transition: transform 0.6s var(--ease); }
.slide { min-width: 100%; padding: 64px 56px; display: flex; gap: 28px; align-items: center; }
.slide .icon-badge { width: 64px; height: 64px; margin: 0; flex-shrink: 0; }
.slide .icon-badge .icon { width: 30px; height: 30px; }
.slide h3 { font-size: 24px; font-weight: 700; color: var(--text); margin-bottom: 8px; }
.slide p { font-size: 15px; color: var(--text-3); max-width: 620px; }
.carousel-btn {
    position: absolute; top: 50%; transform: translateY(-50%); z-index: 5;
    width: 42px; height: 42px; border-radius: 50%; display: flex; align-items: center; justify-content: center;
    background: rgba(0,0,0,0.85); border: 1px solid var(--border-strong); color: var(--text);
    transition: border-color 0.2s, color 0.2s;
}
.carousel-btn:hover { border-color: var(--accent-line); color: var(--accent); }
.carousel-btn .icon { width: 20px; height: 20px; }
.carousel-btn.prev { left: 16px; }
.carousel-btn.next { right: 16px; }
.carousel-dots { position: absolute; bottom: 20px; left: 56px; display: flex; gap: 7px; }
.dot { width: 22px; height: 3px; border-radius: 3px; background: var(--border-strong); transition: background 0.3s; cursor: pointer; }
.dot.active { background: var(--accent); }

/* ============ 视频展示区 ============ */
.video-frame {
    position: relative; border: 1px solid var(--border); border-radius: var(--radius);
    overflow: hidden; background: #000; aspect-ratio: 16/9;
}
.video-frame video { width: 100%; height: 100%; object-fit: cover; }
.video-placeholder {
    position: absolute; inset: 0; display: flex; flex-direction: column;
    align-items: center; justify-content: center; gap: 14px; cursor: pointer;
    background: radial-gradient(circle at 50% 40%, rgba(82,44,140,0.10), transparent 70%), var(--bg-soft);
}
.play-btn {
    width: 68px; height: 68px; border-radius: 50%; background: var(--accent); color: #06121a;
    display: flex; align-items: center; justify-content: center; transition: transform 0.25s var(--ease);
}
.play-btn .icon { width: 26px; height: 26px; }
.video-placeholder:hover .play-btn { transform: scale(1.08); }
.video-placeholder .hint { font-size: 14px; color: var(--text-3); }

/* ============ 视频弹窗 ============ */
.modal {
    position: fixed; inset: 0; z-index: 2000; display: flex; align-items: center; justify-content: center;
    background: rgba(4, 5, 8, 0.82); backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
    opacity: 0; pointer-events: none; transition: opacity 0.3s; padding: 24px;
}
.modal.open { opacity: 1; pointer-events: auto; }
.modal-box {
    width: min(900px, 100%); background: var(--bg-soft); border: 1px solid var(--border-strong);
    border-radius: var(--radius); overflow: hidden; transform: translateY(16px) scale(0.98); transition: transform 0.3s var(--ease);
}
.modal.open .modal-box { transform: translateY(0) scale(1); }
.modal-head { display: flex; align-items: center; justify-content: space-between; padding: 16px 22px; border-bottom: 1px solid var(--border); }
.modal-head h3 { font-size: 17px; font-weight: 700; color: var(--text); }
.modal-close {
    width: 34px; height: 34px; border-radius: 8px; display: flex; align-items: center; justify-content: center;
    color: var(--text-2); border: 1px solid var(--border); transition: 0.2s;
}
.modal-close:hover { color: var(--text); border-color: var(--border-strong); background: rgba(255,255,255,0.04); }
.modal-close .icon { width: 18px; height: 18px; }
.modal-body { padding: 22px; }
.modal-body video, .modal-body iframe { width: 100%; aspect-ratio: 16/9; border-radius: 8px; background: #000; border: none; }
.modal-detail { margin-top: 18px; font-size: 14px; color: var(--text-2); line-height: 1.85; }
.modal-detail .chips { margin-top: 14px; }

/* ============ 技术栈 ============ */
.tech-wrap { display: flex; flex-wrap: wrap; gap: 12px; }
.tech-chip {
    font-family: var(--font-mono); font-size: 13px; color: var(--text-2);
    padding: 9px 16px; border: 1px solid var(--border); border-radius: 8px; background: var(--bg-soft);
    transition: border-color 0.2s, color 0.2s;
}
.tech-chip:hover { border-color: var(--accent-line); color: var(--text); }

/* ============ 内页 Hero ============ */
.page-hero { padding: 138px 0 60px; position: relative; overflow: hidden; }
.page-hero .container { position: relative; z-index: 1; }
.breadcrumb { display: flex; align-items: center; gap: 8px; font-family: var(--font-mono); font-size: 12.5px; color: var(--text-3); margin-bottom: 22px; }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb .sep { opacity: 0.5; }
.breadcrumb .current { color: var(--accent); }
.page-hero h1 { font-size: 44px; font-weight: 800; color: var(--text); letter-spacing: -1px; }
.page-hero h1 .accent { color: var(--accent); }
.page-hero .lead { font-size: 16.5px; color: var(--text-3); max-width: 640px; margin-top: 16px; }

/* ============ 关于 ============ */
.about-grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 56px; align-items: center; }
.about-text h2 { font-size: 30px; font-weight: 800; color: var(--text); margin-bottom: 20px; line-height: 1.35; letter-spacing: -0.5px; }
.about-text p { font-size: 15px; color: var(--text-2); margin-bottom: 16px; line-height: 1.9; }
.about-visual {
    aspect-ratio: 4/3; border-radius: var(--radius); border: 1px solid var(--border);
    background: radial-gradient(circle at 50% 35%, rgba(82,44,140,0.12), transparent 70%), var(--bg-soft);
    display: flex; align-items: center; justify-content: center; position: relative; overflow: hidden;
}
.about-visual .ring {
    width: 180px; height: 180px; border-radius: 50%;
    border: 1px solid var(--accent-line); position: relative;
    display: flex; align-items: center; justify-content: center;
}
.about-visual .ring::before {
    content: ''; position: absolute; inset: 22px; border-radius: 50%; border: 1px dashed var(--border-strong);
}
.about-visual .ring .icon { width: 46px; height: 46px; color: var(--accent); }

/* 价值观 */
.value { text-align: left; }
.value .icon-badge { margin-bottom: 18px; }

/* 时间线 */
.timeline { position: relative; max-width: 760px; margin: 0 auto; padding-left: 28px; }
.timeline::before { content: ''; position: absolute; left: 5px; top: 8px; bottom: 8px; width: 1px; background: var(--border-strong); }
.tl-item { position: relative; padding-bottom: 38px; }
.tl-item::before {
    content: ''; position: absolute; left: -28px; top: 6px; width: 11px; height: 11px; border-radius: 50%;
    background: var(--bg); border: 2px solid var(--accent);
}
.tl-item .year { font-family: var(--font-mono); font-size: 13px; font-weight: 700; color: var(--accent); letter-spacing: 1px; }
.tl-item h4 { font-size: 17px; font-weight: 700; color: var(--text); margin: 4px 0 6px; }
.tl-item p { font-size: 14px; color: var(--text-3); line-height: 1.7; }

/* 团队 */
.member { text-align: center; overflow: hidden; padding: 0; }
.member-top {
    height: 180px; display: flex; align-items: center; justify-content: center;
    border-bottom: 1px solid var(--border);
    background: radial-gradient(circle at 50% 40%, rgba(82,44,140,0.10), transparent 70%), var(--bg-soft);
}
.member-avatar {
    width: 84px; height: 84px; border-radius: 50%; background: var(--bg-elev);
    border: 1px solid var(--accent-line); color: var(--accent);
    display: flex; align-items: center; justify-content: center;
    font-size: 30px; font-weight: 700; font-family: var(--font-mono);
}
.member-info { padding: 22px; }
.member-info h4 { font-size: 16px; font-weight: 700; color: var(--text); }
.member-info .role { font-size: 13px; color: var(--accent); margin-top: 3px; font-family: var(--font-mono); }
.member-info p { font-size: 13px; color: var(--text-3); margin-top: 12px; line-height: 1.7; }

/* ============ 新闻 ============ */
.news-card { display: flex; flex-direction: column; padding: 0; cursor: default; }
.news-top {
    height: 132px; display: flex; align-items: center; justify-content: center;
    border-bottom: 1px solid var(--border);
    background: radial-gradient(circle at 50% 45%, rgba(82,44,140,0.08), transparent 70%), var(--bg-soft);
}
.news-card.accent-purple .news-top { background: radial-gradient(circle at 50% 45%, rgba(82,44,140,0.16), transparent 70%), var(--bg-soft); }
.news-card.accent-blue   .news-top { background: radial-gradient(circle at 50% 45%, rgba(106,169,224,0.10), transparent 70%), var(--bg-soft); }
.news-top .icon { width: 34px; height: 34px; color: var(--accent); }
.news-card.accent-purple .news-top .icon { color: var(--v-purple); }
.news-card.accent-blue   .news-top .icon { color: var(--v-blue); }
.news-body { padding: 22px; }
.news-date { font-family: var(--font-mono); font-size: 12px; color: var(--text-3); margin-bottom: 10px; letter-spacing: 0.5px; }
.news-body h3 { font-size: 16px; font-weight: 700; color: var(--text); margin-bottom: 10px; line-height: 1.5; }
.news-body p { font-size: 13px; color: var(--text-3); line-height: 1.7; }

/* ============ 联系 ============ */
.contact-grid { display: grid; grid-template-columns: 1fr 1.05fr; gap: 52px; }
.contact-info h2 { font-size: 32px; font-weight: 800; color: var(--text); margin-bottom: 16px; letter-spacing: -0.5px; }
.contact-info > p { color: var(--text-3); margin-bottom: 32px; font-size: 15px; }
.contact-list { display: flex; flex-direction: column; gap: 20px; margin-bottom: 36px; }
.contact-item { display: flex; gap: 16px; align-items: flex-start; }
.contact-item .icon-badge { width: 44px; height: 44px; margin: 0; flex-shrink: 0; }
.contact-item .icon-badge .icon { width: 20px; height: 20px; }
.contact-item .label { font-family: var(--font-mono); font-size: 11px; letter-spacing: 1.5px; text-transform: uppercase; color: var(--text-3); }
.contact-item .value { font-size: 15px; color: var(--text); margin-top: 3px; font-weight: 500; }

.form-card { background: var(--bg-soft); border: 1px solid var(--border); border-radius: var(--radius); padding: 34px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field { margin-bottom: 18px; }
.field label { display: block; font-size: 13px; color: var(--text-2); margin-bottom: 8px; }
.field input, .field textarea, .field select {
    width: 100%; padding: 12px 14px; border-radius: var(--radius-sm);
    background: var(--bg-input); border: 1px solid var(--border); color: var(--text);
    font-size: 14.5px; font-family: inherit; transition: border-color 0.2s, box-shadow 0.2s;
}
.field input:focus, .field textarea:focus, .field select:focus {
    outline: none; border-color: var(--accent-line); box-shadow: 0 0 0 3px var(--accent-soft);
}
.field input::placeholder, .field textarea::placeholder { color: var(--text-3); }
.field textarea { resize: vertical; min-height: 120px; }
.field select { appearance: none; cursor: pointer; }
.field select option { background: var(--bg-soft); color: var(--text); }
.form-note { font-size: 12.5px; color: var(--text-3); margin-top: 4px; }

/* 办公地点 */
.office { padding: 28px 24px; text-align: left; }
.office .icon-badge { width: 42px; height: 42px; margin-bottom: 16px; }
.office .icon-badge .icon { width: 20px; height: 20px; }
.office h3 { font-size: 16px; font-weight: 700; color: var(--text); margin-bottom: 8px; }
.office p { font-size: 13px; color: var(--text-3); line-height: 1.7; }

/* ============ CTA ============ */
.cta {
    border: 1px solid var(--border); border-radius: var(--radius);
    padding: 64px 48px; text-align: center;
    background: radial-gradient(ellipse 60% 120% at 50% 0%, rgba(82,44,140,0.10), transparent 70%), var(--bg-soft);
}
.cta h2 { font-size: 32px; font-weight: 800; color: var(--text); letter-spacing: -0.5px; margin-bottom: 12px; }
.cta p { font-size: 16px; color: var(--text-3); margin-bottom: 28px; }

/* ============ 页脚 ============ */
.footer { border-top: 1px solid var(--border); padding: 64px 0 0; margin-top: 40px; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 44px; padding-bottom: 48px; }
.footer-brand .logo { margin-bottom: 18px; }
.footer-brand p { font-size: 13.5px; color: var(--text-3); max-width: 320px; line-height: 1.8; }
.footer-social { display: flex; gap: 10px; margin-top: 20px; }
.footer-social a {
    width: 38px; height: 38px; border-radius: 9px; display: flex; align-items: center; justify-content: center;
    background: var(--bg-soft); border: 1px solid var(--border); color: var(--text-2); transition: 0.2s;
}
.footer-social a:hover { border-color: var(--accent-line); color: var(--accent); }
.footer-social .icon { width: 18px; height: 18px; }
.footer-col h4 { font-size: 14px; font-weight: 700; color: var(--text); margin-bottom: 18px; }
.footer-col ul li { margin-bottom: 11px; }
.footer-col ul li a, .footer-col ul li span { font-size: 13.5px; color: var(--text-3); transition: color 0.2s; }
.footer-col ul li a:hover { color: var(--accent); }
.footer-bottom {
    border-top: 1px solid var(--border); padding: 22px 0; display: flex;
    justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 12px;
    font-size: 12.5px; color: var(--text-3);
}
.footer-links { display: flex; gap: 22px; }

/* ============ 滚动渐显 ============ */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
.reveal.in { opacity: 1; transform: translateY(0); }
.d1 { transition-delay: 0.08s; }
.d2 { transition-delay: 0.16s; }
.d3 { transition-delay: 0.24s; }

/* ============ 响应式 ============ */
@media (max-width: 1024px) {
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
    .grid-3 { grid-template-columns: repeat(2, 1fr); }
    .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 40px 24px; }
    .about-grid, .contact-grid { grid-template-columns: 1fr; gap: 40px; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
    .hero h1 { font-size: 48px; }
    .slide { padding: 48px 40px; }
    .carousel-dots { left: 40px; }
}
@media (max-width: 768px) {
    .nav-menu {
        position: fixed; top: var(--header-h); left: 0; right: 0; bottom: 0;
        flex-direction: column; align-items: stretch; padding: 24px; gap: 4px;
        background: rgba(0, 0, 0, 0.97); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
        transform: translateX(100%); transition: transform 0.35s var(--ease);
    }
    .nav-menu.open { transform: translateX(0); }
    .nav-menu a { padding: 14px 16px; font-size: 16px; }
    .nav-menu a.active::after { display: none; }
    .nav-cta { margin: 12px 16px 0; }
    .nav-toggle { display: flex; }
    .hero { padding: 120px 0 70px; }
    .hero h1 { font-size: 36px; }
    .hero-type { font-size: 18px; }
    .hero-stats { gap: 28px; margin-top: 48px; }
    .hero-stat .num { font-size: 30px; }
    .section { padding: 72px 0; }
    .section-title, .page-hero h1 { font-size: 30px; }
    .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: 1fr 1fr; }
    .slide { flex-direction: column; text-align: center; padding: 40px 28px; }
    .carousel-dots { left: 50%; transform: translateX(-50%); bottom: 16px; }
    .carousel-btn.prev { left: 10px; } .carousel-btn.next { right: 10px; }
    .footer-grid { grid-template-columns: 1fr; gap: 32px; }
    .footer-bottom { flex-direction: column; text-align: center; }
    .form-row { grid-template-columns: 1fr; }
    .cta { padding: 44px 24px; }
}
@media (max-width: 480px) {
    .hero h1 { font-size: 30px; }
    .hero-actions { flex-direction: column; }
    .hero-actions .btn { width: 100%; }
    .section-title, .page-hero h1 { font-size: 26px; }
    .container { padding: 0 18px; }
}

/* ==========================================================
   科技感增强层（克制 · 去廉价 AI 味）
   粒子星座 / 极光晕染 / 渐变文字 / 3D 倾斜 /
   磁吸按钮 / 滚动进度 / 鼠标光晕 / 技术栈跑马灯
   ========================================================== */

/* 极光晕染（固定底层，缓慢漂移，呼应 VI 紫青蓝） */
.aurora { position: fixed; inset: 0; z-index: -1; pointer-events: none; overflow: hidden; }
.aurora i { position: absolute; border-radius: 50%; filter: blur(80px); opacity: 0.32; will-change: transform; }
.aurora .a1 { width: 560px; height: 560px; top: -130px; left: -90px;
    background: radial-gradient(circle, #522C8C, transparent 68%); animation: drift1 22s ease-in-out infinite; }
.aurora .a2 { width: 520px; height: 520px; top: -70px; right: -70px;
    background: radial-gradient(circle, #63C3DC, transparent 68%); animation: drift2 28s ease-in-out infinite; }
.aurora .a3 { width: 660px; height: 660px; bottom: -220px; left: 38%;
    background: radial-gradient(circle, #0D4697, transparent 70%); opacity: 0.24; animation: drift3 34s ease-in-out infinite; }
@keyframes drift1 { 50% { transform: translate(120px, 80px) scale(1.1); } }
@keyframes drift2 { 50% { transform: translate(-100px, 60px) scale(1.15); } }
@keyframes drift3 { 50% { transform: translate(80px, -60px) scale(1.08); } }

/* 顶部滚动进度条（VI 紫→青渐变） */
.scroll-progress {
    position: fixed; top: 0; left: 0; height: 2px; width: 0; z-index: 2000;
    background: var(--grad-brand-h); box-shadow: 0 0 10px rgba(99, 195, 220, 0.5);
}

/* 鼠标光晕（仅精确指针设备） */
.cursor-glow {
    position: fixed; top: 0; left: 0; width: 440px; height: 440px; border-radius: 50%;
    pointer-events: none; z-index: 1; transform: translate(-50%, -50%);
    background: radial-gradient(circle, rgba(99, 195, 220, 0.07), rgba(82, 44, 140, 0.04) 42%, transparent 66%);
    opacity: 0; transition: opacity 0.4s; will-change: transform;
}
body.cursor-on .cursor-glow { opacity: 1; }

/* 渐变文字（Hero 强调词，呼应 VI 标志紫→青） */
.gradient-text {
    background: linear-gradient(110deg, #63C3DC 0%, #522C8C 48%, #63C3DC 100%);
    -webkit-background-clip: text; background-clip: text;
    -webkit-text-fill-color: transparent; color: transparent;
    background-size: 220% auto;
}
.gradient-text.anim { animation: gradShift 6s linear infinite; }
@keyframes gradShift { to { background-position: 220% center; } }
.hero h1 .accent { color: transparent; }

/* Hero 粒子画布 + 透视网格地平线 */
.hero { overflow: hidden; }
.hero-canvas { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 0; pointer-events: none; }
.hero::after {
    content: ''; position: absolute; left: -10%; right: -10%; bottom: 0; height: 48%;
    background-image:
        linear-gradient(rgba(99, 195, 220, 0.14) 1px, transparent 1px),
        linear-gradient(90deg, rgba(99, 195, 220, 0.14) 1px, transparent 1px);
    background-size: 48px 48px;
    transform: perspective(400px) rotateX(60deg); transform-origin: bottom center;
    -webkit-mask-image: linear-gradient(to top, rgba(0, 0, 0, 0.9), transparent);
            mask-image: linear-gradient(to top, rgba(0, 0, 0, 0.9), transparent);
    opacity: 0.85; pointer-events: none; z-index: 0;
}
.hero-inner { position: relative; z-index: 1; }

/* Hero 入场（加载即依次淡入，非滚动触发） */
.hero-inner > * { opacity: 0; transform: translateY(22px); animation: heroIn 0.9s var(--ease) forwards; }
.hero-inner > *:nth-child(1) { animation-delay: 0.05s; }
.hero-inner > *:nth-child(2) { animation-delay: 0.15s; }
.hero-inner > *:nth-child(3) { animation-delay: 0.25s; }
.hero-inner > *:nth-child(4) { animation-delay: 0.35s; }
.hero-inner > *:nth-child(5) { animation-delay: 0.45s; }
.hero-inner > *:nth-child(6) { animation-delay: 0.55s; }
@keyframes heroIn { to { opacity: 1; transform: none; } }

/* 3D 倾斜卡片 + 渐变描边光晕（VI 紫→青） */
.card.tilt { transform-style: preserve-3d; transition: transform 0.45s var(--ease), box-shadow 0.35s, border-color 0.35s; }
.card.tilt::after {
    content: ''; position: absolute; inset: 0; border-radius: var(--radius); padding: 1px;
    background: var(--grad-brand);
    -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
    -webkit-mask-composite: xor; mask-composite: exclude;
    opacity: 0; transition: opacity 0.4s; pointer-events: none;
}
.card.tilt:hover { box-shadow: 0 22px 60px rgba(82, 44, 140, 0.35), 0 0 26px rgba(99, 195, 220, 0.18), 0 4px 14px rgba(0, 0, 0, 0.35); border-color: transparent; }
.card.tilt:hover::after { opacity: 1; }
.card.tilt .icon-badge,
.card.tilt h3,
.card.tilt .product-body,
.card.tilt .member-info { transform: translateZ(28px); transition: transform 0.4s var(--ease); }

/* 磁吸元素 */
.magnetic { transition: transform 0.3s var(--ease); will-change: transform; }

/* 技术栈跑马灯 */
.marquee {
    overflow: hidden; position: relative;
    -webkit-mask: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
            mask: linear-gradient(90deg, transparent, #000 10%, #000 90%, transparent);
}
.marquee-track { display: flex; gap: 14px; width: max-content; animation: marquee 32s linear infinite; }
.marquee:hover .marquee-track { animation-play-state: paused; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* 统计数字进入视口时高亮 */
.stat.in-view .num .suffix, .stat.in-view .num { color: var(--text); }

@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
    html { scroll-behavior: auto; }
}

/* ==========================================================
   首页 Hero 轮播 / 产品图文卡 / 首页新闻模块
   ========================================================== */

/* ============ Hero 轮播 ============ */
.hero { padding: 0; }
.hero-carousel { position: absolute; inset: 0; z-index: 1; overflow: hidden; }
.hcarousel-track { display: flex; height: 100%; transition: transform 0.7s var(--ease); }
.hslide { position: relative; min-width: 100%; height: 100%; display: flex; align-items: center; overflow: hidden; }
.hslide-media-wrap { position: absolute; inset: 0; }
.hslide-media { width: 100%; height: 100%; object-fit: cover; display: block; }
.hslide-overlay {
    position: absolute; inset: 0;
    background: linear-gradient(90deg, rgba(0,0,0,0.86) 0%, rgba(0,0,0,0.55) 35%, rgba(0,0,0,0.18) 64%, rgba(0,0,0,0.42) 100%);
}
.hslide-content { position: relative; z-index: 2; max-width: 760px; }
.hslide-content h1 { font-size: 58px; line-height: 1.08; font-weight: 800; color: var(--text); letter-spacing: -1.5px; margin-bottom: 22px; }
.hslide-content .hero-sub { margin-bottom: 34px; }
.hslide-play {
    display: inline-flex; align-items: center; gap: 6px; font-size: 13px; font-weight: 600;
    color: var(--text-2); padding: 10px 16px; border: 1px solid var(--border-strong);
    border-radius: 999px; background: rgba(255,255,255,0.03);
}
.hslide-play .icon { width: 15px; height: 15px; color: #e06a6a; }

.hcarousel-btn {
    position: absolute; top: 50%; transform: translateY(-50%); z-index: 4;
    width: 46px; height: 46px; border-radius: 50%; display: flex; align-items: center; justify-content: center;
    background: rgba(0,0,0,0.55); border: 1px solid var(--border-strong); color: var(--text);
    transition: border-color 0.2s, color 0.2s, background 0.2s; backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
}
.hcarousel-btn:hover { border-color: var(--accent-line); color: #fff; background: rgba(82,44,140,0.5); }
.hcarousel-btn .icon { width: 20px; height: 20px; }
.hcarousel-btn.prev { left: 22px; }
.hcarousel-btn.next { right: 22px; }

.hcarousel-dots { position: absolute; bottom: 34px; left: 50%; transform: translateX(-50%); z-index: 4; display: flex; gap: 10px; }
.hdot {
    width: 30px; height: 4px; border-radius: 4px; background: rgba(255,255,255,0.28);
    cursor: pointer; transition: background 0.3s, width 0.3s; border: none; padding: 0;
}
.hdot.active { background: var(--dot, var(--accent)); width: 46px; }

/* ============ 产品图文卡 ============ */
.product-media { position: relative; height: 200px; overflow: hidden; background: var(--bg-soft); }
.product-media img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform 0.5s var(--ease); }
.product:hover .product-media img { transform: scale(1.06); }
.product-media .tag {
    position: absolute; top: 14px; left: 14px; margin: 0;
    background: rgba(0,0,0,0.55); border: 1px solid var(--border-strong);
    padding: 5px 11px; border-radius: 999px; backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px);
}
.media-play {
    position: absolute; right: 14px; bottom: 14px; width: 44px; height: 44px; border-radius: 50%;
    display: flex; align-items: center; justify-content: center; color: #fff; background: var(--accent);
    transition: transform 0.25s var(--ease);
}
.media-play .icon { width: 20px; height: 20px; }
.media-play:hover { transform: scale(1.08); }

/* ============ 首页新闻图文卡 ============ */
.home-news .news-card { padding: 0; cursor: pointer; }
.news-media { height: 180px; overflow: hidden; border-bottom: 1px solid var(--border); }
.news-media img { width: 100%; height: 100%; object-fit: cover; display: block; transition: transform 0.5s var(--ease); }
.home-news .news-card:hover .news-media img { transform: scale(1.05); }
.home-news .news-body { padding: 22px; }
.home-news .link-btn { margin-top: 14px; }

/* ============ 响应式 ============ */
@media (max-width: 1024px) {
    .hslide-content h1 { font-size: 46px; }
}
@media (max-width: 768px) {
    .hslide-content h1 { font-size: 32px; }
    .hslide-content .hero-sub { font-size: 15px; }
    .hcarousel-btn { width: 38px; height: 38px; }
    .hcarousel-btn.prev { left: 10px; }
    .hcarousel-btn.next { right: 10px; }
    .hcarousel-dots { bottom: 18px; }
    .product-media { height: 160px; }
}
@media (max-width: 480px) {
    .hslide-content h1 { font-size: 26px; }
    .hero { min-height: 88vh; }
}