/* ==========================================================================
   泰达娱乐平台 · AI 游戏企业官网全站样式
   主题：青玉鎏金（象牙纸白 + 墨青松绿 + 鎏金描边 · 东方现代典雅风）
   说明：纯手写 CSS，零外部依赖；仅系统字体栈，加载极速，利于百度收录
   断点：1080 / 860 / 600 / 430
   ========================================================================== */

/* ---------- 1. 设计变量 ---------- */
:root {
  --paper: #f8f5ee;            /* 象牙纸白：页面主底色 */
  --paper-2: #f1ecdf;          /* 次级纸色 */
  --card: #fffdf7;             /* 卡片纸白 */
  --ink: #22302a;              /* 主文字：松烟墨 */
  --ink-2: #57645d;            /* 次级文字 */
  --ink-3: #8d9891;            /* 弱化文字 */
  --jade: #10594a;             /* 主色：墨青玉 */
  --jade-2: #1d7a64;           /* 主色亮调 */
  --jade-deep: #0b3d33;        /* 深玉：深色区块/页脚 */
  --jade-mist: #e6efe9;        /* 玉青薄雾底 */
  --gold: #b78a2c;             /* 鎏金主调 */
  --gold-2: #d9b25d;           /* 鎏金亮调 */
  --gold-mist: #f4ead2;        /* 金箔薄雾底 */
  --line: #e3dcc9;             /* 常规描边 */
  --line-2: #d3c9ad;           /* 强调描边 */
  --shadow: 0 18px 44px rgba(34, 48, 42, .10);
  --shadow-sm: 0 8px 22px rgba(34, 48, 42, .08);
  --radius: 12px;
  --radius-lg: 18px;
  --header-h: 74px;
  --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "STSong", "SimSun", serif;
  --font-sans: "PingFang SC", "HarmonyOS Sans SC", "MiSans", "Source Han Sans SC", "Microsoft YaHei", "Segoe UI", sans-serif;
}

/* ---------- 2. 基础重置 ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink);
  background-color: var(--paper);
  overflow-x: hidden;
  min-height: 100vh;
}
/* 纸面氛围：顶部玉青与鎏金晕染 + 极淡云纹 */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(920px 460px at 88% -6%, rgba(16, 89, 74, .10), transparent 62%),
    radial-gradient(780px 420px at -8% 12%, rgba(183, 138, 44, .09), transparent 58%),
    radial-gradient(640px 380px at 50% 108%, rgba(29, 122, 100, .07), transparent 60%);
}
img, svg { display: inline-block; max-width: 100%; vertical-align: middle; }
a { color: var(--jade); text-decoration: none; transition: color .25s ease; }
a:hover { color: var(--gold); }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
input, textarea, select { font-family: inherit; font-size: 1rem; color: var(--ink); }
strong { color: inherit; }
em { font-style: normal; }
::selection { background: rgba(29, 122, 100, .25); color: var(--ink); }
:focus-visible { outline: 2px solid var(--gold); outline-offset: 2px; }
::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--paper-2); }
::-webkit-scrollbar-thumb { background: linear-gradient(var(--jade-2), var(--jade)); border-radius: 8px; border: 2px solid var(--paper-2); }

h1, h2, h3, h4 { font-family: var(--font-serif); line-height: 1.35; font-weight: 700; letter-spacing: .02em; }
h1 { font-size: clamp(1.9rem, 4vw, 2.9rem); }
h2 { font-size: clamp(1.45rem, 2.6vw, 2rem); }
h3 { font-size: 1.16rem; }
p { color: var(--ink-2); }

/* ---------- 3. 布局通用 ---------- */
.container { width: min(1200px, 92%); margin-inline: auto; }
.section { padding: clamp(58px, 8vw, 96px) 0; position: relative; }
.section--paper { background: linear-gradient(180deg, transparent, var(--paper-2) 12%, var(--paper-2) 88%, transparent); }
.section--tight { padding: clamp(36px, 5vw, 56px) 0; }

/* 区块标题：居中 · 双语眉题 + 鎏金细线（古典对称式） */
.sec-head { max-width: 760px; margin: 0 auto clamp(30px, 4.5vw, 52px); text-align: center; }
.sec-head .eyebrow {
  display: inline-flex; align-items: center; gap: 14px;
  font-size: .78rem; letter-spacing: .34em; text-transform: uppercase; color: var(--gold);
  font-weight: 600;
}
.sec-head .eyebrow::before, .sec-head .eyebrow::after {
  content: ""; width: 38px; height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold));
}
.sec-head .eyebrow::after { background: linear-gradient(90deg, var(--gold), transparent); }
.sec-head h2 { margin: 14px 0 14px; }
.sec-head h2 .zh { position: relative; }
.sec-head h2 em { color: var(--jade); }
.sec-head p { color: var(--ink-2); }
.sec-head--left { margin-inline: 0; text-align: left; }
.sec-head--left .eyebrow::before { display: none; }

/* 通用按钮：小圆角 + 金色角标（区别于常规胶囊按钮） */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  padding: 13px 30px; border-radius: 8px; border: 1px solid transparent;
  font-size: .95rem; font-weight: 600; letter-spacing: .08em; line-height: 1;
  position: relative; transition: all .28s ease; white-space: nowrap;
}
.btn .arr { font-family: var(--font-serif); transition: transform .28s ease; }
.btn:hover .arr { transform: translateX(4px); }
.btn--main { background: var(--jade); color: #fdfbf4; box-shadow: 0 10px 26px rgba(16, 89, 74, .28); }
.btn--main:hover { background: var(--jade-deep); color: #fff; transform: translateY(-2px); box-shadow: 0 14px 32px rgba(16, 89, 74, .34); }
.btn--gold { background: linear-gradient(120deg, var(--gold-2), var(--gold)); color: #3a2c0c; box-shadow: 0 10px 26px rgba(183, 138, 44, .3); }
.btn--gold:hover { color: #2c2107; transform: translateY(-2px); filter: brightness(1.05); }
.btn--ghost { border-color: var(--line-2); color: var(--ink); background: rgba(255, 253, 247, .6); }
.btn--ghost:hover { border-color: var(--jade); color: var(--jade); background: #fff; }
.btn--sm { padding: 10px 20px; font-size: .86rem; }
.btn--lg { padding: 15px 38px; font-size: 1rem; }

/* 关键词标签 */
.chip {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 7px 16px; border-radius: 999px; font-size: .82rem; letter-spacing: .06em;
  color: var(--jade); background: rgba(16, 89, 74, .07);
  border: 1px solid rgba(16, 89, 74, .16);
}
.chip--gold { color: var(--gold); background: rgba(183, 138, 44, .08); border-color: rgba(183, 138, 44, .2); }

/* 入场动画（JS 触发，禁用时直接显示） */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s ease, transform .7s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1 !important; transform: none !important; transition: none !important; }
}

/* 金色分隔纹 */
.divider-gold {
  width: 220px; height: 12px; margin: 0 auto;
  background:
    linear-gradient(var(--gold), var(--gold)) center/100% 1px no-repeat,
    radial-gradient(circle at 50% 50%, var(--gold) 3px, transparent 3.5px);
}

/* ---------- 4. 顶部信息条 ---------- */
.topbar {
  background: var(--jade-deep); color: rgba(244, 234, 210, .85);
  font-size: .8rem; letter-spacing: .05em;
}
.topbar-inner { display: flex; align-items: center; justify-content: space-between; gap: 18px; min-height: 38px; }
.topbar .tb-left { display: inline-flex; align-items: center; gap: 10px; }
.topbar .tb-left::before { content: "◆"; color: var(--gold-2); font-size: .6rem; }
.topbar a { color: rgba(244, 234, 210, .85); }
.topbar a:hover { color: var(--gold-2); }
.topbar .tb-right { display: inline-flex; align-items: center; gap: 20px; }
.topbar .tb-tel { color: var(--gold-2); font-weight: 600; letter-spacing: .08em; }

/* ---------- 5. 页头与导航 ---------- */
.site-header {
  position: sticky; top: 0; z-index: 900;
  background: rgba(248, 245, 238, .92);
  backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line);
  transition: box-shadow .3s ease;
}
.site-header.is-scrolled { box-shadow: 0 10px 30px rgba(34, 48, 42, .1); }
.site-header::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -1px; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(183, 138, 44, .5) 50%, transparent);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 22px; min-height: var(--header-h); }
.brand { display: inline-flex; align-items: center; gap: 12px; }
.brand img { width: 46px; height: 46px; border-radius: 11px; box-shadow: var(--shadow-sm); }
.brand-text { display: flex; flex-direction: column; line-height: 1.25; }
.brand-text strong { font-family: var(--font-serif); font-size: 1.3rem; color: var(--ink); letter-spacing: .1em; }
.brand-text strong em { color: var(--jade); }
.brand-text small { font-size: .66rem; letter-spacing: .3em; color: var(--ink-3); text-transform: uppercase; }
.site-nav { display: flex; align-items: center; gap: 26px; }
.nav-list { display: flex; align-items: center; gap: 4px; }
.nav-link {
  display: inline-block; padding: 10px 15px; border-radius: 8px;
  font-size: .95rem; color: var(--ink); font-weight: 500; letter-spacing: .06em;
  position: relative; white-space: nowrap;
}
.nav-link::after {
  content: ""; position: absolute; left: 15px; right: 15px; bottom: 5px; height: 2px;
  background: linear-gradient(90deg, var(--gold-2), var(--gold));
  transform: scaleX(0); transform-origin: left; transition: transform .3s ease;
}
.nav-link:hover { color: var(--jade); }
.nav-link:hover::after { transform: scaleX(1); }
.nav-link[aria-current="page"] { color: var(--jade); font-weight: 700; }
.nav-link[aria-current="page"]::after { transform: scaleX(1); }
.nav-toggle {
  display: none; width: 44px; height: 44px; border-radius: 8px;
  border: 1px solid var(--line-2); background: var(--card);
  flex-direction: column; align-items: center; justify-content: center; gap: 5px;
}
.nav-toggle span { display: block; width: 20px; height: 2px; background: var(--jade); border-radius: 2px; transition: transform .3s ease, opacity .3s ease; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- 6. 首页主视觉 ---------- */
.hero {
  position: relative; padding: clamp(52px, 7vw, 92px) 0 clamp(44px, 6vw, 76px); overflow: hidden;
  background:
    linear-gradient(100deg, rgba(248, 245, 238, .97) 0%, rgba(248, 245, 238, .86) 38%, rgba(248, 245, 238, .36) 74%, rgba(248, 245, 238, .6) 100%),
    url("../images/hero-bg.jpg") center 72% / cover no-repeat;
}
.hero::before {
  content: ""; position: absolute; inset: 0; pointer-events: none;
  background:
    linear-gradient(115deg, rgba(16, 89, 74, .05) 0%, transparent 34%),
    linear-gradient(295deg, rgba(183, 138, 44, .07) 0%, transparent 30%);
}
/* 装饰云纹 */
.hero-cloud { position: absolute; opacity: .5; pointer-events: none; }
.hero-cloud--a { top: 66px; right: 6%; width: 150px; }
.hero-cloud--b { bottom: 40px; left: 4%; width: 110px; transform: scaleX(-1); }
.hero-inner { position: relative; display: grid; grid-template-columns: minmax(0, 1.25fr) minmax(0, .9fr); gap: clamp(32px, 5vw, 72px); align-items: center; }
.hero-title { margin: 22px 0 20px; }
.hero-title .line { display: block; }
.hero-title em {
  color: var(--jade);
  background: linear-gradient(180deg, transparent 68%, rgba(217, 178, 93, .5) 68%, rgba(217, 178, 93, .5) 92%, transparent 92%);
}
.hero-sub { font-size: 1.02rem; max-width: 560px; }
.hero-kws { display: flex; flex-wrap: wrap; gap: 10px; margin: 26px 0 30px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; align-items: center; }
.hero-note { margin-top: 22px; font-size: .84rem; color: var(--ink-3); letter-spacing: .04em; }
.hero-note b { color: var(--gold); font-weight: 600; }

/* 右侧「立轴画卷」 */
.hero-art { position: relative; justify-self: end; width: min(420px, 100%); }
.scroll-card {
  position: relative; background: var(--card);
  border: 1px solid var(--line-2); border-radius: 6px;
  box-shadow: var(--shadow); padding: 30px 30px 26px;
}
.scroll-card::before, .scroll-card::after {
  content: ""; position: absolute; left: -9px; right: -9px; height: 14px;
  background: linear-gradient(180deg, #d9b25d, #a8791f); border-radius: 4px;
  box-shadow: 0 4px 10px rgba(120, 86, 20, .3);
}
.scroll-card::before { top: -8px; }
.scroll-card::after { bottom: -8px; }
.scroll-inner { display: grid; grid-template-columns: 1fr 86px; gap: 22px; align-items: center; border: 1px solid var(--line); border-radius: 3px; padding: 22px 18px; background: linear-gradient(160deg, #fffefb, #f6f2e6); }
.scroll-verses { writing-mode: vertical-rl; text-orientation: upright; margin-inline: auto; height: 236px; display: flex; gap: 18px; }
.scroll-verses p {
  font-family: var(--font-serif); font-size: 1.12rem; letter-spacing: .34em;
  color: var(--ink); margin: 0;
}
.scroll-verses p:nth-child(2) { color: var(--jade); }
.seal-badge {
  writing-mode: vertical-rl; text-orientation: upright;
  justify-self: center; align-self: start;
  width: 44px; padding: 14px 0; border-radius: 6px;
  background: linear-gradient(160deg, #b23a2a, #8f2317);
  color: #f8ecd8; font-family: var(--font-serif); font-size: .92rem; font-weight: 700;
  letter-spacing: .3em; text-align: center;
  box-shadow: inset 0 0 0 2px rgba(248, 236, 216, .55), 0 6px 14px rgba(143, 35, 23, .3);
}
.scroll-caption { margin-top: 14px; text-align: center; font-size: .8rem; letter-spacing: .24em; color: var(--ink-3); }

/* 数据带 */
.stat-band { border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); background: rgba(255, 253, 247, .6); }
.stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.stat-item { padding: 30px 18px; text-align: center; position: relative; }
.stat-item + .stat-item::before { content: ""; position: absolute; left: 0; top: 26%; bottom: 26%; width: 1px; background: var(--line); }
.stat-item b { display: block; font-family: var(--font-serif); font-size: clamp(1.6rem, 3vw, 2.3rem); color: var(--jade); letter-spacing: .02em; }
.stat-item b i { font-style: normal; font-size: .62em; color: var(--gold); }
.stat-item span { font-size: .86rem; color: var(--ink-2); letter-spacing: .08em; }

/* ---------- 7. 核心业务卡片 ---------- */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.svc-card {
  position: relative; background: var(--card); border: 1px solid var(--line);
  border-radius: var(--radius); padding: 34px 30px 30px; overflow: hidden;
  transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
}
.svc-card::before {
  content: ""; position: absolute; top: 0; left: 0; width: 58px; height: 58px;
  border-top: 3px solid var(--gold); border-left: 3px solid var(--gold);
  border-top-left-radius: var(--radius); opacity: .85;
}
.svc-card::after {
  content: ""; position: absolute; right: 14px; bottom: 14px; width: 46px; height: 46px;
  background:
    linear-gradient(var(--line-2), var(--line-2)) 0 0/100% 1px no-repeat,
    linear-gradient(var(--line-2), var(--line-2)) 0 0/1px 100% no-repeat,
    linear-gradient(var(--line-2), var(--line-2)) 100% 100%/100% 1px no-repeat,
    linear-gradient(var(--line-2), var(--line-2)) 100% 100%/1px 100% no-repeat;
  opacity: .8;
}
.svc-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: var(--gold-2); }
.svc-icon {
  width: 58px; height: 58px; border-radius: 14px; display: grid; place-items: center;
  background: linear-gradient(150deg, var(--jade-mist), #f4ead2);
  border: 1px solid rgba(183, 138, 44, .3); margin-bottom: 20px;
}
.svc-icon svg { width: 30px; height: 30px; }
.svc-num { position: absolute; top: 20px; right: 24px; font-family: var(--font-serif); font-size: 2rem; color: rgba(16, 89, 74, .1); font-weight: 700; letter-spacing: .04em; }
.svc-card h3 { margin-bottom: 10px; color: var(--ink); }
.svc-card p { font-size: .93rem; }
.svc-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 16px; }
.svc-tags span { font-size: .76rem; color: var(--jade); background: rgba(16, 89, 74, .06); border: 1px solid rgba(16, 89, 74, .14); padding: 3px 10px; border-radius: 999px; }

/* ---------- 8. 产品卡片 ---------- */
.prod-filter { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin-bottom: 34px; }
.filter-btn {
  padding: 9px 22px; border-radius: 999px; font-size: .88rem; letter-spacing: .06em;
  border: 1px solid var(--line-2); color: var(--ink-2); background: var(--card);
  transition: all .25s ease;
}
.filter-btn:hover { border-color: var(--jade); color: var(--jade); }
.filter-btn.is-active { background: var(--jade); border-color: var(--jade); color: #fdfbf4; box-shadow: 0 8px 20px rgba(16, 89, 74, .25); }
.prod-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.prod-card {
  background: var(--card); border: 1px solid var(--line); border-radius: var(--radius-lg);
  overflow: hidden; display: flex; flex-direction: column;
  transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
}
.prod-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: var(--gold-2); }
.prod-card.is-hidden { display: none; }
.prod-art {
  position: relative; aspect-ratio: 16 / 9.4; display: grid; place-items: center; overflow: hidden;
}
.prod-art img {
  position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover;
  transition: transform .6s ease;
}
.prod-card:hover .prod-art img { transform: scale(1.05); }
.prod-art::before {
  content: ""; position: absolute; inset: 0; z-index: 1;
  background: linear-gradient(180deg, rgba(12, 30, 24, .16) 0%, transparent 34%, transparent 56%, rgba(12, 30, 24, .64) 100%);
}
.prod-art .glyph {
  position: absolute; z-index: 2; left: 18px; bottom: 15px;
  font-family: var(--font-serif); font-size: 1.34rem; letter-spacing: .16em;
  color: #fdfbf4; text-shadow: 0 2px 14px rgba(12, 30, 24, .65);
  padding: 2px 0 2px 13px; border-left: 3px solid var(--gold-2);
}
.art-a { background: linear-gradient(145deg, #0f5a48, #1d7a64 58%, #2f9c7d); }
.art-b { background: linear-gradient(145deg, #14334f, #1e5a7a 58%, #3d87a8); }
.art-c { background: linear-gradient(145deg, #6d4a17, #a8791f 58%, #cf9c3d); }
.art-d { background: linear-gradient(145deg, #5a2438, #8f3b52 58%, #b25a6e); }
.art-e { background: linear-gradient(145deg, #3c3a63, #57548c 58%, #7673ab); }
.art-f { background: linear-gradient(145deg, #2c5442, #43795c 60%, #6a9c74); }
.prod-body { padding: 24px 24px 26px; display: flex; flex-direction: column; flex: 1; }
.prod-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 12px; }
.prod-tags span { font-size: .74rem; letter-spacing: .05em; color: var(--gold); background: rgba(183, 138, 44, .08); border: 1px solid rgba(183, 138, 44, .22); padding: 2px 10px; border-radius: 999px; }
.prod-body h3 { font-size: 1.22rem; margin-bottom: 10px; }
.prod-body h3 a { color: var(--ink); }
.prod-body h3 a:hover { color: var(--jade); }
.prod-body > p { font-size: .92rem; flex: 1; }
.prod-meta { display: flex; justify-content: space-between; align-items: center; margin-top: 18px; padding-top: 16px; border-top: 1px dashed var(--line-2); font-size: .82rem; color: var(--ink-3); }
.prod-meta b { color: var(--jade); font-weight: 600; }

/* ---------- 9. 深玉技术区 ---------- */
.section--jade {
  background:
    radial-gradient(800px 400px at 88% 0%, rgba(217, 178, 93, .12), transparent 60%),
    radial-gradient(700px 380px at 0% 100%, rgba(29, 122, 100, .3), transparent 55%),
    var(--jade-deep);
  color: #eef3ee;
}
.section--jade .sec-head h2 { color: #f7f4ea; }
.section--jade .sec-head h2 em { color: var(--gold-2); }
.section--jade .sec-head p { color: rgba(238, 243, 238, .72); }
.section--jade .eyebrow { color: var(--gold-2); }
.section--jade .eyebrow::before { background: linear-gradient(90deg, transparent, var(--gold-2)); }
.section--jade .eyebrow::after { background: linear-gradient(90deg, var(--gold-2), transparent); }
.tech-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.tech-card {
  border: 1px solid rgba(217, 178, 93, .26); border-radius: var(--radius);
  background: rgba(255, 255, 255, .045); padding: 28px 24px;
  transition: transform .3s ease, background .3s ease, border-color .3s ease;
}
.tech-card:hover { transform: translateY(-5px); background: rgba(255, 255, 255, .08); border-color: rgba(217, 178, 93, .5); }
.tech-card .tk { font-family: var(--font-serif); font-size: .78rem; letter-spacing: .3em; color: var(--gold-2); }
.tech-card h3 { color: #f7f4ea; font-size: 1.08rem; margin: 12px 0 10px; }
.tech-card p { color: rgba(238, 243, 238, .68); font-size: .88rem; }

/* 研发管线步骤 */
.pipeline { display: grid; grid-template-columns: repeat(6, 1fr); gap: 14px; margin-top: clamp(36px, 5vw, 56px); counter-reset: step; }
.step { position: relative; padding: 22px 16px 20px; border-radius: var(--radius); background: rgba(255, 255, 255, .05); border: 1px solid rgba(217, 178, 93, .2); text-align: center; }
.step::after {
  content: ""; position: absolute; top: 50%; right: -14px; width: 14px; height: 1px;
  background: rgba(217, 178, 93, .5);
}
.step:last-child::after { display: none; }
.step .no { font-family: var(--font-serif); font-size: .8rem; letter-spacing: .2em; color: var(--gold-2); display: block; margin-bottom: 8px; }
.step h4 { color: #f2f5f0; font-size: .98rem; font-family: var(--font-sans); font-weight: 600; }
.step p { color: rgba(238, 243, 238, .62); font-size: .8rem; margin-top: 6px; line-height: 1.6; }
.kpi-row { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 40px; }
.kpi { text-align: center; padding: 24px 14px; border-radius: var(--radius); border: 1px dashed rgba(217, 178, 93, .35); }
.kpi b { display: block; font-family: var(--font-serif); font-size: clamp(1.5rem, 2.6vw, 2rem); color: var(--gold-2); }
.kpi span { font-size: .84rem; color: rgba(238, 243, 238, .7); letter-spacing: .06em; }

/* ---------- 10. 关于/时间线 ---------- */
.about-split { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr); gap: clamp(30px, 5vw, 64px); align-items: center; }
.about-text h2 { margin-bottom: 16px; }
.about-text h2 em { color: var(--jade); }
.about-text p { margin-bottom: 14px; }
.about-points { margin: 22px 0 26px; display: grid; gap: 12px; }
.about-points li { position: relative; padding-left: 28px; color: var(--ink-2); }
.about-points li::before {
  content: "◆"; position: absolute; left: 2px; top: 0; color: var(--gold); font-size: .7rem; line-height: 2.4;
}
.about-points b { color: var(--ink); }
.about-media {
  position: relative; border-radius: var(--radius-lg); overflow: hidden;
  border: 1px solid var(--line-2); box-shadow: var(--shadow);
  background: linear-gradient(155deg, #123f34, #0b3d33 55%, #175245);
  min-height: 380px; display: grid; place-items: center; padding: 34px;
}
.about-media img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.about-media::before {
  content: ""; position: absolute; inset: 0; z-index: 1;
  background:
    radial-gradient(420px 260px at 78% 18%, rgba(217, 178, 93, .18), transparent 60%),
    linear-gradient(180deg, rgba(11, 61, 51, .3), rgba(11, 61, 51, .55));
}
.about-media .am-inner {
  position: relative; z-index: 2; text-align: center;
  background: rgba(11, 61, 51, .62); border: 1px solid rgba(217, 178, 93, .35);
  border-radius: 16px; padding: 30px 32px;
  backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px);
}
.about-media .am-seal {
  width: 110px; height: 110px; margin: 0 auto 20px; border-radius: 16px;
  background: linear-gradient(160deg, rgba(217, 178, 93, .92), rgba(168, 121, 31, .92));
  display: grid; place-items: center; font-family: var(--font-serif); font-size: 3rem; font-weight: 700; color: #123f34;
  box-shadow: inset 0 0 0 3px rgba(255, 255, 255, .4), 0 16px 36px rgba(0, 0, 0, .3);
}
.about-media .am-title { font-family: var(--font-serif); color: #f4ead2; font-size: 1.3rem; letter-spacing: .3em; }
.about-media .am-sub { color: rgba(238, 243, 238, .6); font-size: .8rem; letter-spacing: .22em; margin-top: 8px; }
.about-media .am-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px; margin-top: 28px; }
.about-media .am-stats div { border: 1px solid rgba(217, 178, 93, .3); border-radius: 10px; padding: 12px 8px; }
.about-media .am-stats b { display: block; color: var(--gold-2); font-family: var(--font-serif); font-size: 1.3rem; }
.about-media .am-stats span { font-size: .74rem; color: rgba(238, 243, 238, .65); letter-spacing: .1em; }

/* 时间线 */
.timeline { position: relative; max-width: 780px; margin: 0 auto; padding-left: 30px; }
.timeline::before { content: ""; position: absolute; left: 8px; top: 6px; bottom: 6px; width: 2px; background: linear-gradient(180deg, var(--gold-2), var(--jade-2), transparent); }
.tl-item { position: relative; padding: 0 0 30px 26px; }
.tl-item::before {
  content: ""; position: absolute; left: -30px; top: 7px; width: 12px; height: 12px; border-radius: 50%;
  background: var(--paper); border: 3px solid var(--gold); box-shadow: 0 0 0 4px rgba(183, 138, 44, .14);
}
.tl-item time { font-family: var(--font-serif); font-size: 1.05rem; color: var(--jade); font-weight: 700; letter-spacing: .06em; }
.tl-item h3 { font-size: 1rem; margin: 4px 0 6px; }
.tl-item p { font-size: .9rem; }

/* ---------- 11. 新闻 ---------- */
.news-list { display: grid; gap: 0; border-top: 1px solid var(--line); }
.news-item {
  display: grid; grid-template-columns: 132px 190px 1fr auto; gap: 26px; align-items: center;
  padding: 26px 10px; border-bottom: 1px solid var(--line);
  transition: background .25s ease, padding-left .25s ease;
}
.news-item:hover { background: rgba(255, 253, 247, .8); padding-left: 18px; }
.news-date { text-align: center; border-right: 1px solid var(--line-2); padding-right: 22px; }
.news-date b { display: block; font-family: var(--font-serif); font-size: 1.9rem; color: var(--jade); line-height: 1.2; }
.news-date span { font-size: .78rem; color: var(--ink-3); letter-spacing: .1em; }
.news-date time { display: block; }
.news-body h3 { font-size: 1.12rem; margin-bottom: 8px; }
.news-body h3 a { color: var(--ink); }
.news-body h3 a:hover { color: var(--jade); }
.news-body p { font-size: .9rem; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.news-cat {
  font-size: .74rem; color: var(--gold); border: 1px solid rgba(183, 138, 44, .3);
  background: rgba(183, 138, 44, .07); border-radius: 999px; padding: 3px 12px; letter-spacing: .08em; white-space: nowrap;
}
.news-more-row { text-align: center; margin-top: 36px; }

/* 新闻缩略图 */
.news-thumb {
  display: block; width: 190px; aspect-ratio: 16 / 9.6; border-radius: 10px; overflow: hidden;
  border: 1px solid var(--line); background: var(--paper-2);
}
.news-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .55s ease; }
.news-item:hover .news-thumb img { transform: scale(1.06); }

/* 内容区宽幅插图 */
.figure-wide {
  position: relative; border-radius: var(--radius-lg); overflow: hidden;
  border: 1px solid var(--line-2); box-shadow: var(--shadow); margin: 0 0 30px;
}
.figure-wide img { width: 100%; display: block; }
.figure-wide figcaption {
  padding: 12px 20px; font-size: .82rem; color: var(--ink-3); letter-spacing: .06em;
  background: var(--card); border-top: 1px solid var(--line);
}

/* ---------- 12. FAQ 手风琴 ---------- */
.faq { max-width: 860px; margin: 0 auto; display: grid; gap: 14px; }
.faq-item { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; transition: border-color .25s ease; }
.faq-item.open { border-color: var(--gold-2); }
.faq-q {
  width: 100%; display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 20px 24px; text-align: left; font-size: 1rem; font-weight: 600; color: var(--ink);
}
.faq-q .q-mark {
  flex: 0 0 auto; width: 26px; height: 26px; border-radius: 50%;
  border: 1px solid var(--gold); color: var(--gold); display: grid; place-items: center;
  font-weight: 400; font-size: 1rem; transition: transform .3s ease, background .3s ease, color .3s ease;
}
.faq-item.open .q-mark { transform: rotate(45deg); background: var(--gold); color: #fff; }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .4s ease; }
.faq-a > div { padding: 0 24px 22px; border-top: 1px dashed var(--line); margin: 0 24px 0; padding: 16px 0 22px; font-size: .93rem; }
.faq-a p { font-size: .93rem; }
.faq-a p + p { margin-top: 10px; }
/* 帮助中心分类标题 */
.faq-cat-wrap { max-width: 860px; margin: 0 auto; }
.faq-cat-wrap + .faq-cat-wrap { margin-top: 6px; }
.faq-cat { font-size: 1.3rem; margin: 40px 0 18px; padding-left: 14px; border-left: 4px solid var(--gold); letter-spacing: .04em; }
.faq-cat-wrap:first-child .faq-cat { margin-top: 0; }
.faq-more { margin-top: 26px; text-align: center; }

/* ---------- 13. CTA 行动区 ---------- */
.cta-band { position: relative; overflow: hidden; background: linear-gradient(120deg, #0e4a3d, #10594a 46%, #17695a); color: #f4ead2; border-radius: var(--radius-lg); padding: clamp(38px, 5vw, 60px) clamp(28px, 5vw, 64px); box-shadow: 0 24px 60px rgba(11, 61, 51, .3); }
.cta-band::before {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(480px 240px at 86% -10%, rgba(217, 178, 93, .3), transparent 62%),
    linear-gradient(rgba(244, 234, 210, .05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(244, 234, 210, .05) 1px, transparent 1px);
  background-size: auto, 42px 42px, 42px 42px;
}
.cta-inner { position: relative; display: flex; align-items: center; justify-content: space-between; gap: 30px; flex-wrap: wrap; }
.cta-inner h2 { color: #fdfaf0; margin-bottom: 10px; }
.cta-inner p { color: rgba(244, 234, 210, .8); max-width: 560px; }
.cta-actions { display: flex; gap: 14px; flex-wrap: wrap; }

/* ---------- 14. 面包屑与子页头 ---------- */
.crumb { background: var(--paper-2); border-bottom: 1px solid var(--line); font-size: .84rem; }
.crumb-inner { display: flex; align-items: center; gap: 10px; min-height: 46px; color: var(--ink-3); flex-wrap: wrap; }
.crumb a { color: var(--ink-2); }
.crumb a:hover { color: var(--jade); }
.crumb .sep { color: var(--line-2); }
.crumb .cur { color: var(--jade); font-weight: 600; }
.page-hero { position: relative; padding: clamp(48px, 6.5vw, 84px) 0 clamp(40px, 5vw, 64px); overflow: hidden; border-bottom: 1px solid var(--line); }
.page-hero::before {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(760px 340px at 82% -20%, rgba(16, 89, 74, .12), transparent 62%),
    radial-gradient(560px 300px at 6% 110%, rgba(183, 138, 44, .1), transparent 60%);
}
.page-hero .ph-inner { position: relative; max-width: 820px; }
.page-hero h1 { margin: 18px 0 16px; }
.page-hero h1 em { color: var(--jade); }
.page-hero p { font-size: 1.02rem; }
.page-hero .ph-en { position: absolute; right: 0; top: 50%; transform: translateY(-50%); font-family: var(--font-serif); font-size: clamp(3rem, 7vw, 5.6rem); letter-spacing: .1em; color: rgba(16, 89, 74, .06); pointer-events: none; text-transform: uppercase; white-space: nowrap; }

/* ---------- 15. 内容排版（利于百度识别正文与结构） ---------- */
.prose { max-width: 860px; }
.prose h2 { margin: 40px 0 16px; padding-left: 16px; border-left: 4px solid var(--gold); }
.prose h3 { margin: 28px 0 12px; color: var(--jade); }
.prose p { margin-bottom: 14px; }
.prose ul, .prose ol { margin: 0 0 16px 4px; display: grid; gap: 10px; }
.prose ul li, .prose ol li { position: relative; padding-left: 26px; color: var(--ink-2); }
.prose ul li::before { content: "◆"; position: absolute; left: 2px; top: 0; color: var(--gold); font-size: .68rem; line-height: 2.5; }
.prose ol { counter-reset: item; }
.prose ol li::before { counter-increment: item; content: counter(item) "."; position: absolute; left: 0; color: var(--jade); font-weight: 700; font-family: var(--font-serif); }
.lead { font-size: 1.06rem; color: var(--ink); font-family: var(--font-serif); }
.highlight-box {
  background: linear-gradient(150deg, #fbf8ef, #f4ead2);
  border: 1px solid var(--line-2); border-left: 4px solid var(--gold);
  border-radius: 0 var(--radius) var(--radius) 0; padding: 24px 26px; margin: 24px 0;
}
.highlight-box p { margin: 0; color: var(--ink); }
.quote-box {
  position: relative; border: 1px solid var(--line-2); border-radius: var(--radius);
  background: var(--card); padding: 28px 30px 24px; margin: 24px 0;
}
.quote-box::before { content: "“"; position: absolute; top: 2px; left: 18px; font-family: var(--font-serif); font-size: 3.2rem; color: var(--gold-2); line-height: 1; }
.quote-box p { margin: 0; padding-left: 30px; font-family: var(--font-serif); color: var(--ink); }

/* 表格 */
.tbl { width: 100%; border-collapse: collapse; background: var(--card); font-size: .92rem; margin: 20px 0; }
.tbl caption { caption-side: top; text-align: left; font-size: .84rem; color: var(--ink-3); padding-bottom: 10px; }
.tbl th, .tbl td { border: 1px solid var(--line); padding: 13px 16px; text-align: left; }
.tbl th { background: var(--jade-mist); color: var(--jade-deep); font-weight: 600; font-family: var(--font-serif); letter-spacing: .04em; }
.tbl tbody tr:nth-child(even) { background: rgba(241, 236, 223, .5); }

/* 通用信息卡 */
.card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease; }
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-sm); border-color: var(--gold-2); }
.card h3 { margin-bottom: 10px; }
.card p { font-size: .92rem; }
.card .card-k { font-family: var(--font-serif); letter-spacing: .26em; font-size: .78rem; color: var(--gold); display: block; margin-bottom: 10px; }

/* 荣誉/资质 */
.honor-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.honor {
  text-align: center; padding: 26px 16px; border: 1px dashed var(--line-2); border-radius: var(--radius);
  background: rgba(255, 253, 247, .7);
}
.honor b { display: block; font-family: var(--font-serif); color: var(--jade); font-size: 1rem; margin-bottom: 6px; }
.honor span { font-size: .78rem; color: var(--ink-3); }

/* 团队 */
.team-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.team-card { text-align: center; background: var(--card); border: 1px solid var(--line); border-radius: var(--radius); padding: 30px 20px; transition: transform .3s ease, border-color .3s ease; }
.team-card:hover { transform: translateY(-5px); border-color: var(--gold-2); }
.avatar {
  width: 84px; height: 84px; margin: 0 auto 16px; border-radius: 50%;
  display: grid; place-items: center; font-family: var(--font-serif); font-size: 1.8rem; font-weight: 700;
  color: #f4ead2; background: linear-gradient(150deg, var(--jade-2), var(--jade-deep));
  box-shadow: inset 0 0 0 3px rgba(217, 178, 93, .45), 0 10px 22px rgba(11, 61, 51, .22);
}
.team-card h3 { font-size: 1.05rem; }
.team-card .role { color: var(--gold); font-size: .8rem; letter-spacing: .12em; margin: 4px 0 10px; }
.team-card p { font-size: .84rem; }

/* ---------- 16. 联系我们 ---------- */
.contact-grid { display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); gap: clamp(28px, 4vw, 52px); align-items: start; }
.info-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 32px 30px; box-shadow: var(--shadow-sm); }
.info-card h2 { font-size: 1.3rem; margin-bottom: 18px; }
.info-list { display: grid; gap: 18px; }
.info-list li { display: grid; grid-template-columns: 46px 1fr; gap: 14px; align-items: start; }
.info-ico {
  width: 46px; height: 46px; border-radius: 12px; display: grid; place-items: center;
  background: var(--jade-mist); border: 1px solid rgba(16, 89, 74, .18); color: var(--jade);
}
.info-ico svg { width: 22px; height: 22px; }
.info-list b { display: block; font-size: .96rem; color: var(--ink); }
.info-list span, .info-list a { font-size: .9rem; color: var(--ink-2); }
.info-list a:hover { color: var(--gold); }
.form-card { background: var(--card); border: 1px solid var(--line); border-radius: var(--radius-lg); padding: 32px 30px; box-shadow: var(--shadow-sm); }
.form-card h2 { font-size: 1.3rem; margin-bottom: 6px; }
.form-card .form-sub { font-size: .88rem; color: var(--ink-3); margin-bottom: 22px; }
.form { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field { display: grid; gap: 7px; }
.field--full { grid-column: 1 / -1; }
.field label { font-size: .86rem; color: var(--ink); font-weight: 600; letter-spacing: .04em; }
.field label i { color: #b23a2a; font-style: normal; }
.field input, .field select, .field textarea {
  width: 100%; padding: 12px 14px; border: 1px solid var(--line-2); border-radius: 8px;
  background: #fffefb; transition: border-color .25s ease, box-shadow .25s ease; font-size: .94rem;
}
.field textarea { resize: vertical; min-height: 118px; }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--jade-2); box-shadow: 0 0 0 3px rgba(29, 122, 100, .14); }
.form-note { grid-column: 1 / -1; font-size: .8rem; color: var(--ink-3); }
.form-actions { grid-column: 1 / -1; display: flex; align-items: center; gap: 16px; flex-wrap: wrap; }
.form-msg { font-size: .86rem; color: var(--jade); font-weight: 600; display: none; }
.form-msg.show { display: inline; }
.map-frame { margin-top: 26px; border: 1px solid var(--line); border-radius: var(--radius-lg); overflow: hidden; background: linear-gradient(150deg, #eef3ee, #f4ead2); min-height: 240px; display: grid; place-items: center; text-align: center; padding: 30px; }
.map-frame .mf-t { font-family: var(--font-serif); color: var(--jade-deep); letter-spacing: .2em; font-size: 1.05rem; }
.map-frame .mf-s { font-size: .84rem; color: var(--ink-3); margin-top: 6px; }

/* ---------- 17. 页脚 ---------- */
.site-footer { background: var(--jade-deep); color: rgba(238, 243, 238, .78); margin-top: clamp(56px, 7vw, 90px); position: relative; }
.site-footer::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px; background: linear-gradient(90deg, transparent, var(--gold-2) 30%, var(--gold-2) 70%, transparent); }
.foot-grid { display: grid; grid-template-columns: 1.35fr 1fr 1fr 1.15fr; gap: 34px; padding: clamp(44px, 6vw, 66px) 0 38px; }
.foot-brand { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.foot-brand img { width: 44px; height: 44px; border-radius: 10px; }
.foot-brand strong { font-family: var(--font-serif); color: #f4ead2; font-size: 1.25rem; letter-spacing: .1em; }
.foot-brand small { display: block; font-size: .64rem; letter-spacing: .28em; color: rgba(238, 243, 238, .5); text-transform: uppercase; }
.foot-about { font-size: .86rem; color: rgba(238, 243, 238, .66); line-height: 1.9; }
.foot-col h4 { color: #f4ead2; font-size: 1rem; letter-spacing: .12em; margin-bottom: 16px; position: relative; padding-bottom: 10px; }
.foot-col h4::after { content: ""; position: absolute; left: 0; bottom: 0; width: 30px; height: 2px; background: linear-gradient(90deg, var(--gold-2), transparent); }
.foot-links { display: grid; gap: 10px; }
.foot-links a { color: rgba(238, 243, 238, .72); font-size: .88rem; }
.foot-links a:hover { color: var(--gold-2); }
.foot-contact { display: grid; gap: 12px; font-size: .86rem; }
.foot-contact b { color: #f4ead2; }
.foot-bottom { border-top: 1px solid rgba(217, 178, 93, .18); padding: 20px 0 26px; font-size: .78rem; color: rgba(238, 243, 238, .5); }
.foot-bottom-inner { display: flex; justify-content: space-between; gap: 14px; flex-wrap: wrap; }
.foot-bottom a { color: rgba(238, 243, 238, .6); }
.foot-bottom a:hover { color: var(--gold-2); }
.friends { padding: 0 0 22px; font-size: .78rem; color: rgba(238, 243, 238, .45); border-top: 1px solid rgba(217, 178, 93, .12); padding-top: 18px; }
.friends a { color: rgba(238, 243, 238, .6); margin-right: 16px; }

/* ---------- 18. 返回顶部 ---------- */
.back-top {
  position: fixed; right: 26px; bottom: 30px; z-index: 950;
  width: 46px; height: 46px; border-radius: 10px;
  background: var(--jade); color: #f4ead2; display: grid; place-items: center;
  box-shadow: 0 12px 28px rgba(11, 61, 51, .32);
  opacity: 0; visibility: hidden; transform: translateY(12px);
  transition: all .3s ease; font-size: 1.1rem;
}
.back-top.show { opacity: 1; visibility: visible; transform: none; }
.back-top:hover { background: var(--jade-deep); color: var(--gold-2); }

/* ---------- 19. 404 ---------- */
.nf-wrap { min-height: calc(100vh - 480px); display: grid; place-items: center; text-align: center; padding: clamp(70px, 10vw, 130px) 0; }
.nf-code { font-family: var(--font-serif); font-size: clamp(5rem, 14vw, 9rem); line-height: 1; color: rgba(16, 89, 74, .14); letter-spacing: .06em; }
.nf-wrap h1 { margin: 6px 0 14px; }
.nf-wrap p { max-width: 520px; margin: 0 auto 28px; }
.nf-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* ---------- 20. 辅助类 ---------- */
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }
.mt-16 { margin-top: 16px; } .mt-24 { margin-top: 24px; } .mt-32 { margin-top: 32px; } .mt-48 { margin-top: 48px; }
.mb-24 { margin-bottom: 24px; } .mb-32 { margin-bottom: 32px; }
.text-center { text-align: center; }

/* ---------- 21. 响应式 ---------- */
/* 中宽屏（7 项导航）：紧凑化，防止文字折行/溢出 */
@media (max-width: 1240px) and (min-width: 861px) {
  .site-nav { gap: 14px; }
  .nav-list { gap: 0; }
  .nav-link { padding: 10px 9px; font-size: .88rem; letter-spacing: .02em; }
  .nav-link::after { left: 9px; right: 9px; }
  .brand-text strong { font-size: 1.12rem; letter-spacing: .04em; }
  .nav-cta { padding-left: 13px; padding-right: 13px; }
}
@media (max-width: 1000px) and (min-width: 861px) {
  .nav-cta { display: none; }
}
@media (max-width: 1080px) {
  .hero-inner { grid-template-columns: 1fr; gap: 44px; }
  .hero-art { justify-self: center; }
  .grid-4, .tech-grid, .honor-grid, .team-grid { grid-template-columns: repeat(2, 1fr); }
  .prod-grid, .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .pipeline { grid-template-columns: repeat(3, 1fr); }
  .step:nth-child(3)::after { display: none; }
  .foot-grid { grid-template-columns: repeat(2, 1fr); }
  .stat-grid { grid-template-columns: repeat(2, 1fr); }
  .stat-item:nth-child(3)::before { display: none; }
  .page-hero .ph-en { display: none; }
}
@media (max-width: 860px) {
  .topbar .tb-right a.tb-link { display: none; }
  .site-nav {
    position: fixed; top: 0; right: 0; bottom: 0; width: min(340px, 86vw);
    background: var(--card); border-left: 1px solid var(--line-2);
    flex-direction: column; align-items: stretch; gap: 0;
    padding: 86px 26px 30px; z-index: 990;
    transform: translateX(102%); transition: transform .36s ease;
    box-shadow: -18px 0 50px rgba(34, 48, 42, .18);
    overflow-y: auto;
  }
  .site-nav.open { transform: none; }
  .site-nav .nav-list { flex-direction: column; align-items: stretch; gap: 2px; }
  .nav-link { padding: 14px 12px; border-bottom: 1px dashed var(--line); border-radius: 0; font-size: 1.02rem; }
  .nav-link::after { display: none; }
  .nav-link[aria-current="page"] { background: var(--jade-mist); border-radius: 8px; }
  .nav-cta { margin-top: 22px; width: 100%; }
  .nav-toggle { display: inline-flex; position: relative; z-index: 1000; }
  .mask { position: fixed; inset: 0; background: rgba(34, 48, 42, .4); z-index: 980; opacity: 0; visibility: hidden; transition: opacity .3s ease, visibility .3s ease; }
  .mask.show { opacity: 1; visibility: visible; }
  .about-split, .contact-grid { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .cta-inner { flex-direction: column; align-items: flex-start; }
  .news-item { grid-template-columns: 96px 1fr; }
  .news-item .news-thumb { display: none; }
  .news-item .news-cat { display: none; }
  .hero { background-position: center, center 82%; }
}
@media (max-width: 600px) {
  .grid-3, .prod-grid, .grid-4, .tech-grid, .honor-grid, .team-grid { grid-template-columns: 1fr; }
  .pipeline { grid-template-columns: 1fr; }
  .step::after { display: none; }
  .kpi-row { grid-template-columns: 1fr; }
  .stat-grid { grid-template-columns: 1fr 1fr; }
  .stat-item { padding: 22px 10px; }
  .hero-actions .btn { width: 100%; }
  .scroll-inner { grid-template-columns: 1fr 64px; padding: 18px 12px; }
  .scroll-verses { height: 200px; gap: 14px; }
  .scroll-verses p { font-size: .98rem; }
  .form { grid-template-columns: 1fr; }
  .foot-grid { grid-template-columns: 1fr; gap: 28px; }
  .news-item { grid-template-columns: 1fr; gap: 12px; padding-left: 0; }
  .news-date { display: flex; align-items: baseline; gap: 10px; border-right: none; padding-right: 0; text-align: left; }
  .news-date b { font-size: 1.3rem; }
  .topbar .tb-left { display: none; }
  .topbar-inner { justify-content: center; }
}
@media (max-width: 430px) {
  .brand-text small { display: none; }
  .brand img { width: 40px; height: 40px; }
  .back-top { right: 16px; bottom: 20px; width: 42px; height: 42px; }
  .stat-grid { grid-template-columns: 1fr; }
  .stat-item + .stat-item::before { display: none; }
}