/* ============================================================
   SAC 沙特阿拉伯理事会 · 前台门户样式
   主题：暗夜极光（暗色系 + 沙特绿/深绿/紫/蓝 + 渐变，扁平）
   ============================================================ */

/* ---------- 本地字体（英文：Cormorant Garamond / Playfair Display / Inter） ---------- */
@font-face { font-family:'Helvetica Neue'; font-weight:400; font-style:normal; src:url('../fonts/arimo-400.woff2') format('woff2'); font-display:swap; }
@font-face { font-family:'Helvetica Neue'; font-weight:500; font-style:normal; src:url('../fonts/arimo-500.woff2') format('woff2'); font-display:swap; }
@font-face { font-family:'Helvetica Neue'; font-weight:600; font-style:normal; src:url('../fonts/arimo-600.woff2') format('woff2'); font-display:swap; }
@font-face { font-family:'Helvetica Neue'; font-weight:700; font-style:normal; src:url('../fonts/arimo-700.woff2') format('woff2'); font-display:swap; }

@font-face {
  font-family: 'Avenir Book';
  src: url('../fonts/Avenir-Book.woff2') format('woff2');
  font-weight: normal;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Avenir Book';
  src: url('../fonts/Avenir-BookOblique.woff2') format('woff2');
  font-weight: normal;
  font-style: italic;
  font-display: swap;
}

@font-face {
  font-family: 'Avenir';
  src: url('../fonts/Avenir-Black.woff2') format('woff2');
  font-weight: 900;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Avenir Black Oblique';
  src: url('../fonts/Avenir-BlackOblique.woff2') format('woff2');
  font-weight: 900;
  font-style: italic;
  font-display: swap;
}

@font-face {
  font-family: 'Avenir';
  src: url('../fonts/Avenir-Heavy.woff2') format('woff2');
  font-weight: 900;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Avenir';
  src: url('../fonts/Avenir-HeavyOblique.woff2') format('woff2');
  font-weight: 900;
  font-style: italic;
  font-display: swap;
}

@font-face {
  font-family: 'Avenir';
  src: url('../fonts/Avenir-Light.woff2') format('woff2');
  font-weight: 300;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Avenir';
  src: url('../fonts/Avenir-LightOblique.woff2') format('woff2');
  font-weight: 300;
  font-style: italic;
  font-display: swap;
}

@font-face {
  font-family: 'Avenir';
  src: url('../fonts/Avenir-Medium.woff2') format('woff2');
  font-weight: 500;
  font-style: normal;
  font-display: swap;
}

@font-face {
  font-family: 'Avenir';
  src: url('../fonts/Avenir-MediumOblique.woff2') format('woff2');
  font-weight: 500;
  font-style: italic;
  font-display: swap;
}

@font-face {
  font-family: 'Avenir';
  src: url('../fonts/Avenir-Oblique.woff2') format('woff2');
  font-weight: normal;
  font-style: italic;
  font-display: swap;
}

@font-face {
  font-family: 'Avenir';
  src: url('../fonts/Avenir-Roman.woff2') format('woff2');
  font-weight: normal;
  font-style: normal;
  font-display: swap;
}

/* ---------- 主题切换过渡 ---------- */
/* View Transitions API 交叉淡入淡出时长 */
::view-transition-old(root),
::view-transition-new(root) {
  animation-duration: 0.45s;
}

/* 降级浏览器：CSS 颜色渐变 */
html {
  transition: background-color 0.5s ease;
}
body {
  transition: background-color 0.5s ease, color 0.5s ease;
}
.site-header,
.site-footer,
.hero,
.page-hero,
.cta,
.card,
section,
button,
a,
h1, h2, h3, h4, h5, h6,
p, span, li {
  transition: background-color 0.4s ease, color 0.4s ease, border-color 0.4s ease, box-shadow 0.4s ease;
}

/* ---------- 设计变量 ---------- */
:root {
  /* 暗色基底（带绿/蓝/紫微调，营造层次） */
  --ink: #0A1410;          /* 主底：深墨绿黑 */
  --ink-2: #0E1A16;        /* 次底 */
  --ink-3: #12221C;        /* 再亮一点 */
  --ink-blue: #0B1422;     /* 带蓝调暗底 */
  --ink-purple: #110D1B;   /* 带紫调暗底 */
  --surface: #141D18;      /* 卡片面 */
  --surface-2: #18221C;
  /* 绿系 */
  --green: #00D27A;        /* 亮翡翠绿（暗底主色，显眼） */
  --green-mid: #00A85A;
  --saudi: #006C35;        /* 沙特绿 */
  --green-deep: #053D22;
  /* 蓝 */
  --blue: #3B82F6;
  --blue-bright: #60A5FA;
  --blue-deep: #1E3A8A;
  /* 紫 */
  --purple: #8B5CF6;
  --purple-bright: #A78BFA;
  --purple-deep: #6D28D9;
  /* 中性/文字 */
  --cream: #ECF2EE;
  --text-light: #E8EFEA;
  --text-light-mute: #9FADA4;
  --text-dim: #6B7770;
  /* 描边 */
  --line: rgba(0,210,122,.28);
  --line-soft: rgba(255,255,255,.08);
  --line-gradient: rgba(139,92,246,.30);
  /* 阴影 */
  --shadow: 0 18px 50px rgba(0,0,0,.45);
  /* 渐变（核心） */
  --grad-main: linear-gradient(120deg, #00D27A 0%, #3B82F6 100%);       /* 绿→蓝 */
  --grad-purple: linear-gradient(120deg, #8B5CF6 0%, #3B82F6 100%);     /* 紫→蓝 */
  --grad-greenpurple: linear-gradient(120deg, #00D27A 0%, #8B5CF6 100%);/* 绿→紫 */
  --grad-cool: linear-gradient(120deg, #3B82F6 0%, #8B5CF6 100%);       /* 蓝→紫 */
  --grad-line: linear-gradient(90deg, transparent 0%, #00D27A 25%, #8B5CF6 60%, #3B82F6 90%, transparent 100%);
  /* 字体 */
  --serif: 'Helvetica Neue', "Cormorant Garamond", "Noto Serif SC", "Songti SC", "SimSun", Georgia, serif;
  --sans: 'Avenir Book', "Segoe UI", "Inter", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", Arial, sans-serif;
  --display: 'Avenir Book', "Playfair Display", "Cormorant Garamond", "Noto Serif SC", Georgia, serif;
  --maxw: 1240px;
  --radius: 14px;
}

/* ---------- 重置与基础 ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--sans);
  color: var(--text-light);
  background:
    radial-gradient(1000px 600px at 85% -5%, rgba(139,92,246,.10), transparent 55%),
    radial-gradient(900px 500px at -5% 30%, rgba(0,210,122,.08), transparent 55%),
    var(--ink);
  line-height: 1.75; font-size: 16px; overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color .25s ease; }
ul { list-style: none; }
h1,h2,h3,h4 { font-family: var(--serif); font-weight: 700; line-height: 1.25; }

/* ---------- 通用布局 ---------- */
.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.section { padding: 96px 0; position: relative; }
.section-sm { padding: 64px 0; }
.bg-ink {
  background:
    radial-gradient(900px 480px at 80% 0%, rgba(0,210,122,.08), transparent 60%),
    var(--ink);
}
.bg-cream {
  background:
    radial-gradient(800px 460px at 10% 0%, rgba(59,130,246,.07), transparent 60%),
    var(--ink-2);
}
.bg-cream-2 {
  background:
    radial-gradient(700px 420px at 90% 100%, rgba(139,92,246,.08), transparent 60%),
    var(--ink-3);
}
.text-center { text-align: center; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--display); font-style: italic;
  letter-spacing: .12em; text-transform: uppercase;
  font-size: 14px; margin-bottom: 18px;
  background: var(--grad-main); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.eyebrow::before { content: ""; width: 34px; height: 2px; background: var(--grad-line); border-radius: 2px; }

.section-title { font-size: clamp(28px, 4vw, 44px); letter-spacing: .01em; margin-bottom: 18px; color: #fff; }
.section-title .accent {
  background: var(--grad-main); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.section-desc { max-width: 720px; color: var(--text-light-mute); font-size: 17px; }
.section-head { margin-bottom: 56px; }
.section-head.center { text-align: center; margin-left: auto; margin-right: auto; }
.section-head.center .section-desc { margin: 0 auto; }

.gold-line { width: 90px; height: 3px; background: var(--grad-line); border-radius: 3px; margin: 22px 0; }
.center .gold-line { margin-left: auto; margin-right: auto; }

/* ---------- 按钮（扁平，无立体） ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 13px 28px; border-radius: 50px; font-size: 15px; font-weight: 600;
  letter-spacing: .03em; cursor: pointer; border: 1px solid transparent;
  transition: background .3s ease, color .3s ease, border-color .3s ease;
  font-family: var(--sans);
}
.btn-gold { background: var(--grad-main); color: #04140C; }
.btn-gold:hover { background: var(--grad-purple); color: #fff; }
.btn-outline { border-color: var(--line); color: var(--text-light); background: transparent; }
.btn-outline:hover { border-color: var(--green); color: var(--green); }
.btn-light { background: rgba(255,255,255,.06); color: var(--text-light); border-color: rgba(255,255,255,.16); backdrop-filter: blur(6px); }
.btn-light:hover { background: var(--grad-purple); color: #fff; border-color: transparent; }
.btn-ghost-gold { border-color: var(--green); color: var(--green); }
.btn-ghost-gold:hover { background: var(--grad-main); color: #04140C; }

/* ---------- 顶部导航 ---------- */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  padding: 18px 0; transition: all .35s ease;
  background: linear-gradient(180deg, rgba(10,20,16,.65), rgba(10,20,16,0));
}
.site-header.scrolled {
  background: rgba(8,16,12,.92); backdrop-filter: blur(12px);
  padding: 12px 0; border-bottom: 1px solid var(--line-soft);
}
.nav { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.brand { display: flex; align-items: center; gap: 14px; flex-shrink: 0; }
.brand img { width: 56px; height: 56px; object-fit: contain; border-radius: 8px; flex-shrink: 0; }
.brand-text { line-height: 1.2; display: flex; flex-direction: column; white-space: nowrap; }
.brand-text .b-en { font-family: var(--sans); font-size: 20px; font-weight: 700; color: #00A85A; letter-spacing: .02em; line-height: 1.1; white-space: nowrap; }
.brand-text .b-cn { font-family: var(--sans); font-size: 10px; font-weight: 500; color: rgba(232,239,234,.65); letter-spacing: .14em; margin-top: 3px; text-transform: uppercase; white-space: nowrap; }
.nav-list { display: flex; align-items: center; gap: 4px; }
.nav-list a { color: var(--text-light-mute); padding: 8px 14px; font-weight: 500; border-radius: 8px; font-size: 15px; position: relative; white-space: nowrap; }
.nav-list a:hover, .nav-list a.active { color: #fff; }
.nav-list a.active::after {
  content: ""; position: absolute; left: 14px; right: 14px; bottom: 2px; height: 2px;
  background: var(--grad-main); border-radius: 2px;
}
.nav-actions { display: flex; align-items: center; gap: 4px; }
/* 语言下拉切换 */
.lang-switch { position: relative; display: inline-flex; align-items: center; }
.lang-btn {
  display: inline-flex; align-items: center; gap: 4px; padding: 5px 8px;
  background: none; border: none; border-radius: 6px;
  color: var(--text-light-mute); font-size: 12px; cursor: pointer; font-family: var(--sans);
  transition: color .25s;
}
.lang-btn:hover { color: #fff; }
.lang-current { font-weight: 600; }
.lang-arrow { font-size: 9px; transition: transform .25s; }
.lang-switch:hover .lang-arrow { transform: rotate(180deg); }
.lang-drop {
  position: absolute; top: 100%; right: 0; margin-top: 6px; min-width: 90px;
  background: rgba(14,22,18,.97); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--line); border-radius: 8px; padding: 4px; box-shadow: 0 12px 30px rgba(0,0,0,.5);
  opacity: 0; visibility: hidden; transform: translateY(-4px);
  transition: opacity .25s, transform .25s, visibility .25s; z-index: 130;
}
.lang-switch:hover .lang-drop,
.lang-switch.open .lang-drop { opacity: 1; visibility: visible; transform: translateY(0); }
.lang-switch.open .lang-arrow { transform: rotate(180deg); }
.lang-drop span {
  display: block; padding: 6px 14px; border-radius: 5px; font-size: 13px; color: var(--text-light-mute);
  cursor: pointer; transition: background .2s, color .2s; white-space: nowrap;
}
.lang-drop span:hover { background: rgba(0,210,122,.14); color: #fff; }
.lang-drop span.on { color: var(--green); font-weight: 600; background: rgba(0,210,122,.08); }
.nav-cta { padding: 9px 20px; font-size: 14px; }
.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 6px; }
.nav-toggle span { width: 26px; height: 2px; background: #fff; border-radius: 2px; transition: .3s; }

/* ---------- "更多" 折叠菜单（平板横屏导航收折） ---------- */
.nav-more { display: none; position: relative; }
.nav-more-btn {
  display: inline-flex; align-items: center; gap: 4px; padding: 8px 14px; border-radius: 8px;
  font-size: 15px; color: var(--text-light-mute); background: none; border: 1px solid var(--line-soft);
  cursor: pointer; font-family: var(--sans); transition: color .25s, border-color .25s;
}
.nav-more-btn:hover { color: #fff; border-color: var(--green); }
.nav-more-btn.active { color: #fff; border-color: var(--green); background: rgba(0,210,122,.12); }
.nav-more-arrow { font-size: 10px; transition: transform .25s; }
.nav-more:hover .nav-more-arrow { transform: rotate(180deg); }
.nav-more-drop {
  position: absolute; top: 100%; right: 0; margin-top: 8px; min-width: 150px;
  background: rgba(14,22,18,.97); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--line); border-radius: 10px; padding: 6px; box-shadow: 0 14px 36px rgba(0,0,0,.5);
  opacity: 0; visibility: hidden; transform: translateY(-6px); transition: opacity .25s, transform .25s, visibility .25s;
  z-index: 120;
}
.nav-more:hover .nav-more-drop { opacity: 1; visibility: visible; transform: translateY(0); }
.nav-more-drop a {
  display: block; padding: 9px 14px; border-radius: 6px; font-size: 14px; color: var(--text-light-mute);
  white-space: nowrap; border-bottom: none;
}
.nav-more-drop a:hover { background: rgba(0,210,122,.12); color: #fff; }

/* 亮色主题 */
[data-theme="light"] .nav-more-btn { color:#4A5C52; border-color:var(--line-soft); }
[data-theme="light"] .nav-more-btn:hover { color:#006C35; border-color:var(--green); }
[data-theme="light"] .nav-more-drop { background:rgba(255,255,255,.97); box-shadow:0 14px 36px rgba(0,0,0,.12); }
[data-theme="light"] .nav-more-drop a { color:#4A5C52; }
[data-theme="light"] .nav-more-drop a:hover { background:rgba(0,210,122,.10); color:#006C35; }
[data-theme="light"] .lang-btn { background:none; color:#4A5C52; }
[data-theme="light"] .lang-btn:hover { color:#006C35; }
[data-theme="light"] .lang-drop { background:rgba(255,255,255,.97); box-shadow:0 12px 30px rgba(0,0,0,.1); }
[data-theme="light"] .lang-drop span { color:#4A5C52; }
[data-theme="light"] .lang-drop span:hover { background:rgba(0,210,122,.10); color:#006C35; }
[data-theme="light"] .lang-drop span.on { color:#00843E; background:rgba(0,210,122,.12); }

/* ---------- Hero（多层渐变光晕） ---------- */
.hero {
  position: relative; min-height: 100vh; display: flex; align-items: center;
  color: #fff; overflow: hidden;
  background:
    radial-gradient(1100px 620px at 75% 15%, rgba(0,210,122,.22), transparent 60%),
    radial-gradient(900px 540px at 18% 85%, rgba(59,130,246,.22), transparent 60%),
    radial-gradient(700px 440px at 50% 50%, rgba(139,92,246,.14), transparent 60%),
    linear-gradient(160deg, #07120E 0%, #0A1410 45%, #0B1422 100%);
}
.hero::before {
  content: ""; position: absolute; inset: 0;
  background-image: radial-gradient(rgba(255,255,255,.06) 1px, transparent 1px);
  background-size: 28px 28px; opacity: .6; mask-image: linear-gradient(180deg, #000, transparent 70%);
}
.hero-inner { position: relative; z-index: 2; padding-top: 140px; padding-bottom: 90px; max-width: 1040px; }
.hero-title { font-size: clamp(38px, 6vw, 68px); line-height: 1.4; letter-spacing: .01em; color: #fff; margin-bottom: 24px; }
.hero-title .accent {
  background: linear-gradient(120deg, #00D27A 0%, #60A5FA 50%, #A78BFA 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-sub { font-size: clamp(16px, 2vw, 20px); color: var(--text-light-mute); max-width: 620px; margin-bottom: 38px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-badges { display: flex; gap: 28px; margin-top: 54px; flex-wrap: wrap; }
.hero-badge { display: flex; align-items: center; gap: 10px; color: var(--text-light-mute); font-size: 14px; }
.hero-badge .dot { width: 9px; height: 9px; border-radius: 50%; background: var(--grad-main); }
.hero-scroll { position: absolute; bottom: 30px; left: 50%; transform: translateX(-50%); color: var(--text-dim); font-size: 12px; letter-spacing: .2em; }

/* ---------- 内页标题区 ---------- */
.page-hero {
  position: relative; padding: 160px 0 80px; color: #fff; overflow: hidden;
  background:
    radial-gradient(900px 500px at 82% 8%, rgba(139,92,246,.20), transparent 60%),
    radial-gradient(700px 420px at 8% 90%, rgba(0,210,122,.18), transparent 60%),
    linear-gradient(160deg, #0A1410, #0E1A24 55%, #120E1B);
}
.page-hero h1 { font-size: clamp(32px, 5vw, 54px); color: #fff; }
.page-hero h1 span { background: var(--grad-main); -webkit-background-clip: text; background-clip: text; color: transparent; }
.page-hero p { color: var(--text-light-mute); max-width: 640px; margin-top: 16px; }
.breadcrumb { font-size: 13px; color: var(--text-dim); margin-top: 22px; }
.breadcrumb a:hover { color: var(--green); }

/* ---------- 业务总览卡片（四色渐变） ---------- */
.biz-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 20px; }
.biz-card {
  position: relative; border-radius: var(--radius); overflow: hidden; min-height: 360px;
  display: flex; flex-direction: column; justify-content: flex-end; padding: 28px;
  color: #fff; border: 1px solid var(--line-soft);
  cursor: pointer;
  transition: transform .4s cubic-bezier(.2,.7,.3,1), box-shadow .4s ease, border-color .4s ease;
}
.biz-card::before {
  content: ""; position: absolute; inset: 0; border-radius: var(--radius); padding: 1.5px;
  background: var(--grad-main); -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 .4s ease; pointer-events: none; z-index: 3;
}
.biz-card::after {
  content: ""; position: absolute; left: 0; right: 0; top: 0; height: 3px;
  background: var(--grad-main); transform: scaleX(0); transform-origin: left; transition: transform .45s ease; z-index: 3;
}
.biz-card .biz-bg { position: absolute; inset: 0; background: linear-gradient(180deg, transparent 25%, rgba(7,15,11,.94) 100%); transition: transform .6s ease, filter .4s ease; }
.biz-card .biz-icon { position: relative; font-size: 40px; margin-bottom: auto; transition: transform .4s ease; z-index: 2; }
.biz-card .biz-name { position: relative; font-family: var(--serif); font-size: 24px; margin-bottom: 4px; color:#fff; z-index: 2; }
.biz-card .biz-en { position: relative; font-family: var(--display); font-style: italic; font-size: 13px; letter-spacing: .12em; text-transform: uppercase; background: var(--grad-main); -webkit-background-clip: text; background-clip: text; color: transparent; z-index: 2; }
.biz-card .biz-desc { position: relative; font-size: 14px; color: rgba(232,239,234,.92); margin-top: 10px; z-index: 2; }
.biz-card .biz-link { position: relative; margin-top: 16px; color: var(--green); font-size: 14px; display: inline-flex; align-items: center; gap: 6px; z-index: 2; transition: gap .3s ease, color .3s ease; }
.biz-card:hover { transform: translateY(-10px); box-shadow: 0 26px 60px rgba(0,0,0,.5), 0 0 30px rgba(0,210,122,.22); border-color: transparent; }
.biz-card:hover::before { opacity: 1; }
.biz-card:hover::after { transform: scaleX(1); }
.biz-card:hover .biz-bg { transform: scale(1.08); filter: brightness(1.12); }
.biz-card:hover .biz-icon { transform: scale(1.12) translateY(-2px); }
.biz-card:hover .biz-link { gap: 12px; color: #fff; }
/* 四业务不同色调渐变 */
.biz-card.c-agarwood { background: linear-gradient(160deg, #053D22 0%, #006C35 45%, #07120E 100%); }       /* 深绿 */
.biz-card.c-jewelry  { background: linear-gradient(160deg, #2A1A45 0%, #6D28D9 50%, #0C0A16 100%); }       /* 紫 */
.biz-card.c-drone    { background: linear-gradient(160deg, #0E2A4A 0%, #1E5F8E 50%, #07111E 100%); }       /* 蓝 */
.biz-card.c-truck    { background: linear-gradient(160deg, #063327 0%, #006C35 40%, #1E3A8A 100%); }       /* 绿→蓝 */

/* ---------- 关于 SAC 四块 ---------- */
.about-blocks { display: grid; grid-template-columns: repeat(2,1fr); gap: 28px; }
.about-block {
  padding: 36px; border-radius: var(--radius); background: var(--surface);
  border: 1px solid var(--line-soft); transition: all .35s ease; position: relative; overflow: hidden;
}
.about-block::before { content:""; position:absolute; top:0; left:0; width:4px; height:0; background: var(--grad-main); transition: height .4s ease; }
.about-block:hover { transform: translateY(-4px); border-color: var(--line); }
.about-block:hover::before { height: 100%; }
.about-block .num { font-family: var(--display); font-size: 36px; font-weight: 700; background: var(--grad-main); -webkit-background-clip: text; background-clip: text; color: transparent; }
.about-block h3 { font-size: 22px; margin: 8px 0 4px; color: #fff; }
.about-block .en { font-family: var(--display); font-style: italic; color: var(--green); font-size: 14px; letter-spacing: .08em; }
.about-block p { color: var(--text-light-mute); margin-top: 14px; font-size: 15px; }
.about-block ul li { color: var(--text-light-mute); padding-left: 22px; position: relative; margin-top: 10px; font-size: 15px; }
.about-block ul li::before { content:""; position:absolute; left:0; top:11px; width:8px; height:8px; background: var(--grad-main); border-radius:50%; }

/* ---------- 数据统计（渐变数字） ---------- */
.stats { display: grid; grid-template-columns: repeat(4,1fr); gap: 24px; }
.stat { text-align: center; padding: 30px 16px; border-left: 1px solid var(--line-soft); }
.stat:first-child { border-left: 0; }
.stat-num {
  font-family: var(--display); font-size: clamp(36px,5vw,56px); font-weight: 700; line-height: 1;
  background: var(--grad-main); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.stat-num .suffix { font-size: .5em; vertical-align: super; }
.stat-label { margin-top: 12px; color: var(--text-light-mute); font-size: 15px; }

/* ---------- 列表卡片 ---------- */
.card-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 28px; }
.card {
  border-radius: var(--radius); overflow: hidden; background: var(--surface);
  border: 1px solid var(--line-soft); transition: all .35s ease; display: flex; flex-direction: column;
}
.card:hover { transform: translateY(-6px); border-color: var(--line); box-shadow: 0 16px 38px rgba(0,210,122,.12); }
.card-media {
  aspect-ratio: 16/10; position: relative; overflow: hidden;
  background: linear-gradient(135deg, #053D22 0%, #0E2A4A 55%, #2A1A45 100%);
  display:flex; align-items:center; justify-content:center; color: rgba(255,255,255,.32);
  font-family: var(--display); font-size: 40px; font-style: italic;
}
.card-media .tag {
  position: absolute; top: 14px; left: 14px; font-size: 12px; padding: 4px 12px; border-radius: 50px; color:#fff;
  background: var(--grad-purple);
}
.card-media .tag.green { background: var(--grad-main); color:#04140C; }
.card-media .tag.gold { background: var(--grad-greenpurple); color:#04140C; }
.card-body { padding: 22px; flex: 1; display: flex; flex-direction: column; }
.card-meta { font-size: 13px; letter-spacing: .05em; margin-bottom: 8px; display:flex; gap:12px; color: var(--green); }
.card-title { font-size: 19px; color: #fff; margin-bottom: 8px; }
.card-desc { font-size: 14px; color: var(--text-light-mute); flex: 1; }
.card-more { margin-top: 16px; font-size: 14px; font-weight: 600; display:inline-flex; gap:6px; align-items:center; background: var(--grad-main); -webkit-background-clip: text; background-clip: text; color: transparent; }
.card-more:hover { gap: 12px; }

/* ---------- 通用图文双栏 ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.split-media {
  border-radius: var(--radius); min-height: 420px; position: relative; overflow: hidden;
  background:
    radial-gradient(380px 240px at 28% 22%, rgba(0,210,122,.28), transparent 60%),
    radial-gradient(360px 220px at 78% 80%, rgba(139,92,246,.26), transparent 60%),
    linear-gradient(150deg, #053D22 0%, #0E2A4A 55%, #2A1A45 100%);
  display:flex; align-items:center; justify-content:center;
  color: rgba(255,255,255,.30); font-family: var(--display); font-size: 60px; font-style: italic;
}
.split-media .ph-note { position:absolute; bottom:18px; left:20px; font-family:var(--sans); font-style:normal; font-size:13px; color: var(--text-light-mute); }

/* 特性列表（渐变图标） ---------- */
.feature-list { display: grid; grid-template-columns: repeat(3,1fr); gap: 22px; margin-top: 40px; }
.feature { padding: 26px; border-radius: var(--radius); background: var(--surface); border:1px solid var(--line-soft); }
.feature .f-icon {
  width: 54px; height: 54px; border-radius: 14px; display:flex; align-items:center; justify-content:center; font-size: 26px;
  background: var(--grad-main);
}
.feature:nth-child(2) .f-icon { background: var(--grad-purple); }
.feature:nth-child(3) .f-icon { background: var(--grad-greenpurple); }
.feature:nth-child(4) .f-icon { background: var(--grad-cool); }
.feature h4 { font-size: 18px; margin: 14px 0 8px; color:#fff; }
.feature p { font-size: 14px; color: var(--text-light-mute); }

/* ---------- CTA 区 ---------- */
.cta {
  position: relative; overflow: hidden; color: #fff; text-align: center;
  background:
    radial-gradient(820px 420px at 50% 0%, rgba(0,210,122,.20), transparent 60%),
    radial-gradient(640px 380px at 82% 100%, rgba(139,92,246,.20), transparent 60%),
    radial-gradient(560px 340px at 12% 90%, rgba(59,130,246,.18), transparent 60%),
    linear-gradient(160deg, #0A1410 0%, #0E1A24 55%, #120E1B 100%);
}
.cta h2 { font-size: clamp(28px,4vw,42px); color:#fff; margin-bottom: 16px; }
.cta h2 + p, .cta p { color: var(--text-light-mute); max-width: 600px; margin: 0 auto 30px; }
.cta-actions { display:flex; gap:16px; justify-content:center; flex-wrap: wrap; }

/* ---------- 办事处 / 联系 ---------- */
.office-grid { display:grid; grid-template-columns: repeat(2,1fr); gap: 28px; }
.office { padding: 32px; border-radius: var(--radius); background: var(--surface); border:1px solid var(--line-soft); }
.office .o-flag { font-size: 30px; }
.office h4 { font-size: 20px; margin: 10px 0; color:#fff; }
.office .o-addr { color: var(--text-light-mute); font-size: 15px; }
.contact-line { display:flex; align-items:center; gap:12px; padding: 10px 0; border-bottom:1px solid var(--line-soft); }
.contact-line .c-ic { width:42px; height:42px; border-radius:12px; display:flex; align-items:center; justify-content:center; color:#04140C; background: var(--grad-main); }
.contact-line:nth-of-type(2) .c-ic { background: var(--grad-purple); color:#fff; }
.contact-line:nth-of-type(3) .c-ic { background: var(--grad-cool); color:#fff; }
.contact-line .c-label { font-size:13px; color: var(--text-dim); }
.contact-line .c-val { font-size:15px; color: #fff; font-weight:600; }
.contact-line .c-val a { color: #fff; }
.contact-line .c-val a:hover { color: var(--green); }

/* ---------- 页脚 ---------- */
.site-footer { background: linear-gradient(180deg, #0A1410 0%, #060D0A 100%); color: var(--text-light-mute); padding: 70px 0 30px; }
.footer-top { display:grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: 40px; padding-bottom: 40px; border-bottom: 1px solid var(--line-soft); }
.footer-brand .brand { margin-bottom: 18px; }
.footer-brand p { font-size: 14px; line-height: 1.8; max-width: 320px; }
.footer-col h5 { color: #fff; font-family: var(--serif); font-size: 16px; margin-bottom: 18px; }
.footer-col ul li { margin-bottom: 10px; font-size: 14px; }
.footer-col ul li a:hover { color: var(--green); }
.footer-bottom { display:flex; justify-content:space-between; align-items:center; padding-top: 24px; font-size: 13px; flex-wrap:wrap; gap:12px; }
.footer-bottom a:hover { color: var(--green); }

/* ---------- WhatsApp 悬浮 ---------- */
.wa-float {
  position: fixed; right: 26px; bottom: 26px; z-index: 90;
  width: 56px; height: 56px; border-radius: 50%; display:flex; align-items:center; justify-content:center;
  background: linear-gradient(135deg, #25D366, #128C7E); color: #fff;
  transition: transform .3s ease;
}
.wa-float:hover { transform: scale(1.08); }
.wa-float svg { width: 30px; height: 30px; fill: #fff; }

/* ---------- 滚动出现动画 ---------- */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity .8s ease, transform .8s ease; }
.reveal.in { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: .1s; } .reveal.d2 { transition-delay: .2s; } .reveal.d3 { transition-delay: .3s; }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .biz-grid { grid-template-columns: repeat(3,1fr); }
  .card-grid { grid-template-columns: repeat(2,1fr); }
  .stats { grid-template-columns: repeat(2,1fr); }
  .feature-list { grid-template-columns: repeat(2,1fr); }
  /* 页脚：品牌跨满宽 + 三列并排 + 字号收紧 */
  .site-footer { padding: 52px 0 24px; }
  .footer-top { grid-template-columns: repeat(3, 1fr); gap: 20px; padding-bottom: 28px; }
  .footer-brand { grid-column: 1 / -1; text-align: center; }
  .footer-brand .brand { justify-content: center; margin-bottom: 12px; }
  .footer-brand p { max-width: 100%; font-size: 13px; line-height: 1.6; }
  .footer-col h5 { font-size: 14px; margin-bottom: 10px; }
  .footer-col ul li { margin-bottom: 6px; font-size: 13px; }
  .footer-bottom { padding-top: 18px; font-size: 12px; }
  .nav-list > a { padding: 6px 10px; font-size: 14px; }
  .nav { gap: 14px; }
  .about-blocks { grid-template-columns: 1fr; }
}

/* 768–1280px：JS 动态折叠导航 */
@media (max-width: 1280px) {
  .nav-more { display: block; }
}
@media (max-width: 768px) {
  .section { padding: 64px 0; }
  .container { padding: 0 20px; }
  .nav-list {
    position: fixed; top: 0; right: -100%; height: 100vh; height: 100dvh; width: 78%; max-width: 340px;
    background: rgba(8,16,12,.96); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
    flex-direction: column; align-items: flex-start; padding: 90px 28px; gap: 6px;
    transition: right .4s ease; box-shadow: -10px 0 40px rgba(0,0,0,.5); z-index: 105;
  }
  .nav-list.open { right: 0; }
  .nav-list a { padding: 14px 8px; width: 100%; border-bottom: 1px solid var(--line-soft); border-radius: 0; }
  /* 浅色主题：移动端导航面板 */
  [data-theme="light"] .nav-list {
    background: rgba(255,255,255,.96);
    box-shadow: -10px 0 40px rgba(0,0,0,.12);
  }
  [data-theme="light"] .nav-list a {
    color: #2A3A30;
    border-bottom-color: rgba(0,0,0,.08);
  }
  [data-theme="light"] .nav-list a:hover,
  [data-theme="light"] .nav-list a.active {
    color: #006C35;
    background: rgba(0,108,53,.06);
  }
  .nav-toggle { display: flex; z-index: 110; }
  /* 移动端汉堡面板：隐藏"更多"按钮，JS 会把所有栏目归位 */
  .nav-more { display: none !important; }
  .split { grid-template-columns: 1fr; gap: 32px; }
  .about-blocks { grid-template-columns: 1fr; }
  .office-grid { grid-template-columns: 1fr; }
  .biz-grid, .card-grid, .stats, .feature-list, .svc-grid { grid-template-columns: 1fr; }
  /* 页脚：进一步收紧 */
  .site-footer { padding: 44px 0 20px; }
  .footer-top { gap: 14px; padding-bottom: 20px; }
  .footer-brand .brand { margin-bottom: 8px; }
  .footer-brand p { font-size: 12px; }
  .footer-col h5 { font-size: 13px; margin-bottom: 8px; }
  .footer-col ul li { margin-bottom: 5px; font-size: 12px; }
  .footer-bottom { flex-direction: column; text-align: center; gap: 6px; padding-top: 14px; font-size: 11px; }
  .stat { border-left: 0; border-top: 1px solid var(--line-soft); }
  .detail-meta { grid-template-columns: 1fr; }
  .detail-gallery { grid-template-columns: repeat(2, 1fr); }
  .biz-card { min-height: 300px; }
  .page-hero { padding: 140px 0 60px; }
}

/* ===== 项目合作流程指引 ===== */
.process { margin-top:28px; padding:24px 26px; border-radius:14px; background:rgba(255,255,255,.05); border:1px solid var(--line-soft); }
.process-title { font-size:18px; color:#fff; margin-bottom:4px; }
.process-sub { font-size:13px; color:var(--text-light-mute); margin-bottom:16px; }
.process-steps { list-style:none; padding:0; margin:0; counter-reset:step; display:grid; gap:12px; }
.process-steps li {
  position:relative; padding-left:40px; color:var(--text-light); font-size:14px; line-height:1.65;
  counter-increment:step;
}
.process-steps li::before {
  content:counter(step); position:absolute; left:0; top:0; width:26px; height:26px; border-radius:50%;
  background:var(--grad-main); color:#04140C; font-weight:700; font-size:13px;
  display:flex; align-items:center; justify-content:center;
}

/* ===== 市场咨询服务卡 ===== */
.svc-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:20px; }
.svc-card {
  padding:24px; border-radius:14px; background:var(--surface); border:1px solid var(--line-soft);
  transition:all .3s; position:relative; overflow:hidden;
}
.svc-card::before { content:""; position:absolute; top:0; left:0; width:4px; height:0; background:var(--grad-main); transition:height .4s; }
.svc-card:hover { transform:translateY(-4px); border-color:var(--line); box-shadow:0 14px 32px rgba(0,210,122,.12); }
.svc-card:hover::before { height:100%; }
.svc-num { font-family:var(--display); font-size:13px; color:var(--green); letter-spacing:.12em; }
.svc-card h4 { font-size:17px; color:#fff; margin:6px 0 10px; }
.svc-card p { font-size:13.5px; color:var(--text-light-mute); line-height:1.7; }
.svc-price { margin-top:14px; font-size:13px; font-weight:700; background:var(--grad-main); -webkit-background-clip:text; background-clip:text; color:transparent; }
@media (max-width:1024px) { .svc-grid { grid-template-columns:repeat(2,1fr); } }
@media (max-width:768px) { .svc-grid { grid-template-columns:1fr; } }

/* ===== 服务目录页 ===== */
.svc-note { background:var(--surface); border:1px solid var(--line-soft); border-left:3px solid var(--green); border-radius:12px; padding:20px 24px; color:var(--text-light-mute); font-size:14px; margin-bottom:48px; line-height:1.8; }
[data-theme="light"] .svc-note { color:#4A5C52; }
.svc-cat { margin-bottom:14px; border:1px solid var(--line-soft); border-radius:14px; overflow:hidden; background:var(--surface); transition:border-color .3s; }
.svc-cat.open { border-color:var(--line); }
.svc-cat-head { display:flex; gap:16px; align-items:center; padding:18px 22px; cursor:pointer; user-select:none; transition:background .3s; }
.svc-cat-head:hover { background:rgba(0,210,122,.06); }
.svc-cat-head > div:nth-child(2) { flex:1; min-width:0; }
.svc-cat-num { font-family:var(--display); font-size:22px; font-weight:700; background:var(--grad-main); -webkit-background-clip:text; background-clip:text; color:transparent; line-height:1; min-width:34px; }
.svc-cat-head h3 { font-size:17px; color:#fff; }
[data-theme="light"] .svc-cat-head h3 { color:#11241B; }
.svc-cat-desc { color:var(--text-light-mute); font-size:13px; margin-top:3px; line-height:1.5; }
[data-theme="light"] .svc-cat-desc { color:#4A5C52; }
.svc-cat-head::after { content:"+"; flex:0 0 auto; width:28px; height:28px; border-radius:50%; display:inline-flex; align-items:center; justify-content:center; color:var(--green); font-size:20px; font-weight:300; line-height:1; transition:transform .35s ease, background .3s; }
.svc-cat.open .svc-cat-head::after { content:"×"; transform:rotate(0); background:rgba(0,210,122,.14); }
.svc-items { display:grid; grid-template-columns:repeat(2,1fr); gap:12px; max-height:0; overflow:hidden; opacity:0; margin:0; padding:0 22px; transition:max-height .45s ease, opacity .3s ease, padding .3s ease; }
.svc-cat.open .svc-items { max-height:3200px; opacity:1; padding:4px 22px 20px; }
.svc-item { background:rgba(255,255,255,.03); border:1px solid var(--line-soft); border-radius:10px; padding:14px 16px; transition:.3s; }
[data-theme="light"] .svc-item { background:#FFFFFF; }
.svc-item:hover { border-color:var(--line); transform:translateY(-2px); }
.svc-item-h { display:flex; justify-content:space-between; gap:12px; align-items:baseline; }
.svc-item-name { font-weight:700; color:#fff; font-size:14.5px; }
[data-theme="light"] .svc-item-name { color:#11241B; }
.svc-item-price { font-size:12px; font-weight:700; white-space:nowrap; background:var(--grad-main); -webkit-background-clip:text; background-clip:text; color:transparent; }
.svc-item-desc { color:var(--text-light-mute); font-size:12.5px; margin-top:6px; line-height:1.6; }
[data-theme="light"] .svc-item-desc { color:#4A5C52; }
@media (max-width:768px){ .svc-items{grid-template-columns:1fr;} .svc-cat-desc{display:none;} }

/* ===== 亮绿主题（色系切换） ===== */
[data-theme="light"] {
  --ink:#FFFFFF; --ink-2:#F4FAF6; --ink-3:#EAF4EE;
  --surface:#FFFFFF; --surface-2:#F4FAF6;
  --text-light:#11241B; --text-light-mute:#4A5C52; --text-dim:#7C8C82;
  --line:rgba(0,108,53,.22); --line-soft:rgba(15,36,27,.10);
  --shadow:0 18px 50px rgba(0,108,53,.14);
}
[data-theme="light"] body { background:var(--ink-2); }
[data-theme="light"] .bg-ink { background:radial-gradient(900px 480px at 80% 0%, rgba(0,210,122,.10), transparent 60%), var(--ink-2); }
[data-theme="light"] .bg-cream { background:radial-gradient(800px 460px at 10% 0%, rgba(59,130,246,.06), transparent 60%), var(--ink-3); }
[data-theme="light"] .bg-cream-2 { background:radial-gradient(700px 420px at 90% 100%, rgba(139,92,246,.08), transparent 60%), var(--ink); }
[data-theme="light"] .site-header { background:linear-gradient(180deg, rgba(244,250,246,.85), rgba(244,250,246,0)); }
[data-theme="light"] .site-header.scrolled { background:rgba(255,255,255,.92); border-bottom-color:var(--line-soft); }
[data-theme="light"] .brand-text .b-en { color:#00843E; }
[data-theme="light"] .brand-text .b-cn { color:rgba(28,43,34,.6); }
@media (min-width: 769px) {
  [data-theme="light"] .nav-list a { color:#4A5C52; }
  [data-theme="light"] .nav-list a:hover, [data-theme="light"] .nav-list a.active { color:#006C35; }
}
[data-theme="light"] .nav-toggle span { background:#11241B; }
[data-theme="light"] .section-title { color:#11241B; }
[data-theme="light"] .card,
[data-theme="light"] .about-block,
[data-theme="light"] .feature,
[data-theme="light"] .office,
[data-theme="light"] .svc-card { background:#FFFFFF; border-color:var(--line-soft); box-shadow:0 8px 24px rgba(15,36,27,.06); }
[data-theme="light"] .about-block h3,
[data-theme="light"] .office h4,
[data-theme="light"] .feature h4,
[data-theme="light"] .svc-card h4,
[data-theme="light"] .card-title { color:#11241B; }
[data-theme="light"] .about-block p,
[data-theme="light"] .office .o-addr,
[data-theme="light"] .feature p,
[data-theme="light"] .svc-card p,
[data-theme="light"] .card-desc,
[data-theme="light"] .section-desc { color:#4A5C52; }
[data-theme="light"] .about-block ul li,
[data-theme="light"] .process-steps li { color:#11241B; }
[data-theme="light"] .process-title { color:#11241B; }
[data-theme="light"] .contact-line { border-color:var(--line-soft); }
[data-theme="light"] .contact-line .c-label { color:#7C8C82; }
[data-theme="light"] .contact-line .c-val,
[data-theme="light"] .contact-line .c-val a { color:#11241B; }
[data-theme="light"] .site-footer { background:linear-gradient(180deg,#FFFFFF,#EAF4EE); color:#4A5C52; }
[data-theme="light"] .footer-col h5 { color:#11241B; }
/* 亮主题：封面区（Hero / 页头 / CTA）改为浅色 + 深色文字 */
[data-theme="light"] .site-header { background:linear-gradient(180deg, rgba(247,251,248,.97), rgba(247,251,248,.75)); }
[data-theme="light"] .hero {
  background:
    radial-gradient(1100px 620px at 75% 15%, rgba(0,210,122,.18), transparent 60%),
    radial-gradient(900px 540px at 18% 85%, rgba(59,130,246,.14), transparent 60%),
    linear-gradient(160deg, #FFFFFF 0%, #F0F8F3 45%, #E8F0FB 100%);
  color:#11241B;
}
[data-theme="light"] .hero::before { background-image:radial-gradient(rgba(0,108,53,.08) 1px, transparent 1px); }
[data-theme="light"] .hero-title { color:#11241B; }
[data-theme="light"] .hero-sub,
[data-theme="light"] .hero-badge { color:#4A5C52; }
[data-theme="light"] .hero-scroll { color:#7C8C82; }
[data-theme="light"] .page-hero {
  background:
    radial-gradient(900px 500px at 82% 8%, rgba(139,92,246,.12), transparent 60%),
    radial-gradient(700px 420px at 8% 90%, rgba(0,210,122,.14), transparent 60%),
    linear-gradient(160deg, #FFFFFF, #EEF6F0 60%, #ECEAF7);
  color:#11241B;
}
[data-theme="light"] .page-hero h1 { color:#11241B; }
[data-theme="light"] .page-hero p { color:#4A5C52; }
[data-theme="light"] .breadcrumb { color:#7C8C82; }
[data-theme="light"] .cta {
  background:
    radial-gradient(820px 420px at 50% 0%, rgba(0,210,122,.16), transparent 60%),
    radial-gradient(640px 380px at 82% 100%, rgba(139,92,246,.14), transparent 60%),
    linear-gradient(160deg, #F0F8F3 0%, #E8F0FB 55%, #ECEAF7 100%);
  color:#11241B;
}
[data-theme="light"] .cta h2 { color:#11241B; }
[data-theme="light"] .cta p { color:#4A5C52; }
[data-theme="light"] .btn-light { background:rgba(0,108,53,.10); color:#11241B; border-color:var(--line); }
[data-theme="light"] .btn-ghost-gold { border-color:var(--green); color:var(--green-deep); }
/* 色系切换按钮 */
.theme-toggle { background:rgba(255,255,255,.08); border:1px solid rgba(255,255,255,.18); color:#fff; width:36px; height:36px; border-radius:50%; cursor:pointer; display:flex; align-items:center; justify-content:center; transition:transform .3s, background .3s, color .3s; }
.theme-toggle svg { width:18px; height:18px; display:block; }
[data-theme="light"] .theme-toggle { background:rgba(0,108,53,.10); border-color:var(--line); color:#00843E; }
.theme-toggle:hover { transform:scale(1.1); color:var(--green); }

/* ===== 多语言 / RTL ===== */
/* 阿拉伯文：切换字体 + 基础镜像 */
html[dir="rtl"] body { font-family:"Tajawal","IBM Plex Sans Arabic","Noto Sans SC",sans-serif; }
html[dir="rtl"] .eyebrow::before { display:none; }
html[dir="rtl"] .hero-badge, html[dir="rtl"] .contact-line, html[dir="rtl"] .footer-bottom { flex-direction:row-reverse; }
html[dir="rtl"] .nav { flex-direction:row-reverse; }
html[dir="rtl"] .nav-actions { flex-direction:row-reverse; }
html[dir="rtl"] .about-block ul li, html[dir="rtl"] .process-steps li { padding-left:0; padding-right:40px; }
html[dir="rtl"] .about-block ul li::before, html[dir="rtl"] .process-steps li::before { left:auto; right:0; }
html[dir="rtl"] .svc-card::before, html[dir="rtl"] .about-block::before { left:auto; right:0; }
html[dir="rtl"] .card-media .tag { left:auto; right:14px; }
html[dir="rtl"] .lang-drop { right:auto; left:0; }
html[dir="rtl"] .wa-float { right:auto; left:26px; }

/* 产品分页器 */
.portal-pagination { grid-column: 1 / -1; display: flex; justify-content: center; align-items: center; gap: 8px; padding: 30px 0 10px; flex-wrap: wrap; }
.portal-pagination .pg-btn { min-width: 38px; height: 38px; padding: 0 14px; border-radius: 8px; border: 1px solid var(--line-soft); background: var(--surface); color: var(--text-light-mute); font-size: 14px; cursor: pointer; transition: all .25s ease; }
.portal-pagination .pg-btn:hover { border-color: var(--green); color: var(--green); }
.portal-pagination .pg-btn.active { background: var(--grad-main); color: #04140C; border-color: transparent; font-weight: 700; }
.portal-pagination .pg-prev, .portal-pagination .pg-next { font-size: 13px; }

/* 卡片简介限制行数 */
.card-desc { display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }

/* 卡片链接（整个卡片可点击） */
.card-link { text-decoration: none; color: inherit; display: block; }
.card-link .card { height: 100%; }

/* 详情页 */
.detail-title { font-size: clamp(24px,4vw,36px); color:var(--text-light); margin-bottom:20px; }
.detail-cover { border-radius:14px; overflow:hidden; margin-bottom:28px; box-shadow:var(--shadow); }
.detail-cover img { width:100%; max-height:480px; object-fit:cover; }
.detail-meta { display:grid; grid-template-columns:repeat(auto-fill,minmax(240px,1fr)); gap:12px; margin-bottom:28px; }
.detail-meta-item { display:flex; align-items:center; gap:10px; padding:12px 16px; border-radius:10px; background:rgba(255,255,255,.04); border:1px solid var(--line-soft); }
.detail-meta-label { flex:0 0 auto; font-size:13px; color:var(--text-light-mute); font-weight:600; }
.detail-meta-value { flex:1; font-size:15px; color:var(--text-light); }
.detail-content { font-size:16px; line-height:1.9; color:var(--text-light-mute); margin-bottom:28px; }
.detail-content p { margin:0 0 14px; }
.detail-content img { max-width:100%; border-radius:8px; margin:16px 0; }
.detail-content h2,.detail-content h3 { color:var(--text-light); margin:24px 0 12px; }

/* 强制使用主题色变量覆盖富文本行内 style（!important 优先级高于普通行内样式） */
.detail-content,
.detail-content :is(p, div, span, h1, h2, h3, h4, h5, h6,
  li, td, th, blockquote, a:not(.btn), strong, em, b, i, u, s,
  label, figcaption, pre, code, small, big, sub, sup) {
  color: var(--text-light-mute) !important;
}
.detail-content :is(h1, h2, h3, h4, h5, h6) {
  color: var(--text-light) !important;
}
.detail-content a:not(.btn) {
  color: var(--green) !important;
}
.detail-content a:not(.btn):hover {
  color: var(--green-mid) !important;
}
/* 富文本背景色强制透明（避免浅色主题下出现深色块） */
.detail-content :is(div, table, td, th, blockquote, pre, section, article) {
  background-color: transparent !important;
}
.detail-gallery { display:grid; grid-template-columns:repeat(auto-fill,minmax(200px,1fr)); gap:12px; margin-bottom:28px; }
.detail-gallery img { width:100%; aspect-ratio:4/3; object-fit:cover; border-radius:10px; cursor:pointer; transition:transform .25s; }
.detail-gallery img:hover { transform:scale(1.03); }
.detail-back { margin-top:36px; }
.detail-back a { display:inline-flex; align-items:center; gap:6px; padding:10px 24px; border-radius:50px; border:1px solid var(--line); color:var(--green); font-size:14px; font-weight:600; transition:all .25s; }
.detail-back a:hover { background:var(--grad-main); color:#04140C; border-color:transparent; }

/* ============================================================
   响应式增强：移动端 & 平板适配
   ============================================================ */

/* ---------- 触摸设备全局优化 ---------- */
@media (hover: none) and (pointer: coarse) {
  .nav-list a { min-height: 44px; display: flex; align-items: center; }
  .btn { min-height: 44px; }
  .lang-btn { min-height: 40px; padding: 6px 12px; }
  .lang-drop span { min-height: 36px; display: flex; align-items: center; }
  .pg-btn { min-width: 42px; min-height: 42px; }
  .theme-toggle { min-width: 40px; min-height: 40px; }
  .svc-cat-head { min-height: 48px; }
}

/* ---------- 刘海屏 / 安全区域 ---------- */
@supports (padding-top: env(safe-area-inset-top)) {
  .site-header { padding-top: calc(18px + env(safe-area-inset-top)); }
  .site-header.scrolled { padding-top: calc(12px + env(safe-area-inset-top)); }
  .nav-list.open { padding-top: calc(90px + env(safe-area-inset-top)); }
  .wa-float { bottom: calc(26px + env(safe-area-inset-bottom)); right: calc(26px + env(safe-area-inset-right)); }
  html[dir="rtl"] .wa-float { right: auto; left: calc(26px + env(safe-area-inset-left)); }
}

/* ---------- ≤ 480px：小屏手机 ---------- */
@media (max-width: 480px) {
  .container { padding: 0 16px; }

  .section { padding: 56px 0; }
  .section-sm { padding: 40px 0; }

  /* 导航 */
  .brand img { width: 40px; height: 40px; }
  .brand-text .b-en { font-size: 16px; }
  .brand-text .b-cn { font-size: 8px; letter-spacing: .08em; }
  .site-header { padding: 12px 0; }
  .nav-cta { padding: 7px 14px; font-size: 12px; }

  /* Hero */
  .hero { min-height: auto; }
  .hero::before { background-size: 18px 18px; }
  .hero-inner { padding-top: 110px; padding-bottom: 50px; }
  .hero-title { font-size: clamp(26px, 7.5vw, 34px); }
  .hero-sub { font-size: 14px; margin-bottom: 28px; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .hero-badges { gap: 12px; margin-top: 28px; }
  .hero-badge { font-size: 12px; }
  .hero-scroll { display: none; }

  /* Page Hero */
  .page-hero { padding: 120px 0 48px; }
  .page-hero h1 { font-size: clamp(24px, 7vw, 32px); }
  .page-hero p { font-size: 14px; }

  /* 双栏 */
  .split { gap: 24px; }
  .split-media { min-height: 220px; border-radius: 10px; }

  /* 按钮 */
  .btn { padding: 12px 22px; font-size: 14px; }
  .cta-actions { flex-direction: column; }
  .cta-actions .btn { width: 100%; justify-content: center; }

  /* 标题 */
  .section-title { font-size: clamp(24px, 6vw, 30px); }
  .section-desc { font-size: 15px; }
  .section-head { margin-bottom: 36px; }
  .gold-line { margin: 16px 0; width: 60px; }

  /* 业务卡片 */
  .biz-card { min-height: 260px; padding: 20px; }
  .biz-card .biz-name { font-size: 19px; }
  .biz-card .biz-desc { font-size: 13px; }
  .biz-card .biz-en { font-size: 11px; }

  /* 统计 */
  .stat { padding: 20px 12px; }
  .stat-num { font-size: 30px; }
  .stats { grid-template-columns: repeat(2, 1fr); }

  /* 卡片 */
  .card-media { aspect-ratio: 4/3; }
  .card-body { padding: 16px; }
  .card-title { font-size: 17px; }

  /* About blocks */
  .about-block { padding: 24px; }
  .about-block .num { font-size: 28px; }
  .about-block h3 { font-size: 19px; }

  /* 特性 */
  .feature { padding: 20px; }
  .feature .f-icon { width: 44px; height: 44px; font-size: 22px; border-radius: 10px; }
  .feature h4 { font-size: 16px; }

  /* CTA */
  .cta h2 { font-size: clamp(22px, 5vw, 28px); }

  /* 联系 */
  .contact-line { flex-direction: column; align-items: flex-start; gap: 6px; }
  .contact-line .c-ic { width: 36px; height: 36px; border-radius: 10px; }

  /* 办事处 */
  .office { padding: 24px; }
  .office h4 { font-size: 18px; }

  /* 详情 */
  .detail-meta { grid-template-columns: 1fr; }
  .detail-gallery { grid-template-columns: repeat(2, 1fr); gap: 8px; }
  .detail-gallery img { border-radius: 8px; }
  .detail-cover img { max-height: 220px; }
  .detail-title { font-size: clamp(20px, 6vw, 26px); }
  .detail-content { font-size: 15px; }

  /* 咨询 */
  .svc-cat-head { padding: 12px 14px; gap: 8px; }
  .svc-cat-head h3 { font-size: 15px; }
  .svc-cat-num { font-size: 18px; min-width: 28px; }
  .svc-cat-head::after { width: 24px; height: 24px; font-size: 16px; }
  .svc-items { padding: 0 14px; }
  .svc-cat.open .svc-items { padding: 4px 14px 16px; }
  .svc-item { padding: 12px 14px; }
  .svc-item-h { flex-direction: column; gap: 4px; }
  .svc-item-name { font-size: 13.5px; }
  .svc-item-desc { font-size: 12px; }
  .svc-note { padding: 16px 18px; font-size: 13px; }

  /* 流程 */
  .process { padding: 18px; }
  .process-steps li { font-size: 13px; padding-left: 34px; }
  .process-steps li::before { width: 22px; height: 22px; font-size: 12px; }
  html[dir="rtl"] .process-steps li { padding-left: 0; padding-right: 34px; }

  /* 页脚：Business + About 一行，Contact 独占一行 */
  .site-footer { padding: 36px 0 16px; }
  .footer-top { grid-template-columns: 1fr 1fr; gap: 10px; padding-bottom: 16px; }
  .footer-brand { grid-column: 1 / -1; }
  .footer-brand .brand { margin-bottom: 6px; }
  .footer-brand .brand img { width: 38px; height: 38px; }
  .footer-brand .brand-text .b-en { font-size: 14px; }
  .footer-brand p { font-size: 12px; line-height: 1.5; }
  .footer-col { text-align: center; }
  .footer-col h5 { font-size: 13px; margin-bottom: 6px; }
  .footer-col ul li { margin-bottom: 4px; font-size: 12px; }
  .footer-col:last-child { grid-column: 1 / -1; }
  .footer-bottom { flex-direction: column; text-align: center; gap: 6px; padding-top: 12px; font-size: 11px; }

  /* WhatsApp */
  .wa-float { right: 14px; bottom: 14px; width: 48px; height: 48px; }
  .wa-float svg { width: 26px; height: 26px; }

  /* 分页器 */
  .portal-pagination { gap: 4px; padding: 20px 0 6px; }
  .portal-pagination .pg-btn { min-width: 34px; height: 34px; padding: 0 10px; font-size: 13px; }

  /* eye-brow */
  .eyebrow { font-size: 12px; gap: 8px; }
  .eyebrow::before { width: 24px; }

  /* breadcrumb */
  .breadcrumb { font-size: 12px; margin-top: 16px; }
}

/* ---------- 481px - 768px：大屏手机 / 小平板，卡片 2 列 ---------- */
@media (min-width: 481px) and (max-width: 768px) {
  .card-grid { grid-template-columns: repeat(2, 1fr); }
  .biz-grid { grid-template-columns: repeat(2, 1fr); }
  .feature-list { grid-template-columns: repeat(2, 1fr); }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .svc-grid { grid-template-columns: repeat(2, 1fr); }
  .detail-meta { grid-template-columns: repeat(2, 1fr); }
  .detail-gallery { grid-template-columns: repeat(3, 1fr); }
  /* 展会卡片 meta 自适应：窄卡片内日期+城市换行显示 */
  .card-meta {
    flex-wrap: wrap;
    gap: 4px 10px;
    font-size: 12px;
  }
}