/* ============================================================
   谷雨科技 GUYU TECH — 官网设计系统
   概念：雨生百谷 · 数智生长
   春暖花开浅色调 × 翠玉绿 × 谷穗金 × 桃粉点缀 × 宋体标题
   ============================================================ */

:root {
  --bg: #f8faf4;
  --bg-2: #f1f6ea;
  --bg-3: #eaf2e2;
  --surface: rgba(255, 255, 255, 0.66);
  --surface-hover: rgba(255, 255, 255, 0.92);
  --line: rgba(34, 90, 60, 0.2);
  --line-soft: rgba(34, 90, 60, 0.11);

  --ink: #1c2b22;
  --ink-2: #46584c;
  --ink-3: #7f8f84;

  --rain: #17a463;          /* 翠玉绿 — 主强调色 */
  --rain-deep: #0f8a52;
  --rain-glow: rgba(23, 164, 99, 0.25);
  --blossom: #ef9db1;       /* 桃粉 — 春花点缀 */
  --gold: #c9822a;          /* 谷穗金 — 点缀 */
  --gold-dim: rgba(180, 116, 36, 0.72);

  --serif: "Noto Serif SC", "Songti SC", "SimSun", serif;
  --sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --mono: "JetBrains Mono", "Cascadia Mono", Consolas, monospace;

  --radius: 14px;
  --radius-lg: 22px;
  --container: 1200px;
  --header-h: 76px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html { scroll-behavior: smooth; }

body {
  background:
    radial-gradient(ellipse 70% 45% at 88% -8%, rgba(23, 164, 99, 0.08), transparent),
    radial-gradient(ellipse 55% 40% at -5% 30%, rgba(239, 157, 177, 0.09), transparent),
    radial-gradient(ellipse 60% 40% at 50% 115%, rgba(201, 130, 42, 0.06), transparent),
    var(--bg);
  background-attachment: fixed;
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* —— 背景氛围：雨丝 Canvas + 噪点 —— */
#rain-canvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.6;
}

body::after {
  /* 细腻噪点，增加纸感质感 */
  content: "";
  position: fixed;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

main { position: relative; z-index: 2; }

::selection { background: var(--rain); color: #fff; }

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

.container {
  width: min(var(--container), calc(100% - 48px));
  margin-inline: auto;
}

/* ============================================================
   排版
   ============================================================ */
h1, h2, h3, .serif { font-family: var(--serif); font-weight: 700; line-height: 1.25; }

.section { padding: clamp(72px, 9vw, 130px) 0; position: relative; }

/* 杂志式章节编号 */
.sec-head { display: flex; align-items: flex-end; gap: 22px; margin-bottom: clamp(36px, 5vw, 64px); }
.sec-index {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.2em;
  color: var(--rain-deep);
  border: 1px solid rgba(23, 164, 99, 0.3);
  background: rgba(23, 164, 99, 0.05);
  border-radius: 999px;
  padding: 7px 16px;
  white-space: nowrap;
  margin-bottom: 10px;
}
.sec-title { font-size: clamp(28px, 4vw, 44px); letter-spacing: 0.04em; }
.sec-title em { font-style: normal; color: var(--rain); }
.sec-sub { color: var(--ink-3); margin-top: 10px; font-size: 15px; max-width: 560px; }

/* 竖排文字点缀（东方感） */
.vertical-text {
  writing-mode: vertical-rl;
  font-family: var(--serif);
  letter-spacing: 0.5em;
  color: var(--ink-3);
  font-size: 14px;
  user-select: none;
}

/* ============================================================
   顶部导航
   ============================================================ */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--header-h);
  z-index: 60;
  display: flex;
  align-items: center;
  transition: background 0.4s var(--ease), border-color 0.4s, box-shadow 0.4s;
  border-bottom: 1px solid transparent;
}
.site-header.scrolled {
  background: rgba(248, 250, 244, 0.85);
  backdrop-filter: blur(14px);
  border-bottom-color: var(--line-soft);
  box-shadow: 0 8px 30px -18px rgba(28, 43, 34, 0.25);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; }

.brand { display: flex; align-items: center; gap: 13px; }
.brand-mark {
  width: 40px; height: 40px;
  border: 1px solid rgba(23, 164, 99, 0.35);
  border-radius: 10px;
  display: grid; place-items: center;
  font-family: var(--serif);
  font-size: 20px;
  color: #fff;
  background: linear-gradient(135deg, var(--rain), #4cc98a);
  box-shadow: 0 6px 16px -6px var(--rain-glow);
}
.brand-name { font-family: var(--serif); font-size: 19px; font-weight: 700; letter-spacing: 0.12em; }
.brand-name small { display: block; font-family: var(--mono); font-size: 10px; letter-spacing: 0.32em; color: var(--ink-3); font-weight: 400; }

.main-nav { display: flex; gap: 6px; align-items: center; }
.main-nav a {
  padding: 9px 15px;
  border-radius: 8px;
  color: var(--ink-2);
  font-size: 14.5px;
  letter-spacing: 0.06em;
  transition: color 0.25s, background 0.25s;
  position: relative;
}
.main-nav a:hover { color: var(--ink); background: rgba(23, 164, 99, 0.07); }
.main-nav a.active { color: var(--rain-deep); font-weight: 500; }
.main-nav a.active::after {
  content: "";
  position: absolute;
  left: 15px; right: 15px; bottom: 4px;
  height: 2px;
  border-radius: 2px;
  background: var(--rain);
}

.header-cta {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 22px;
  border-radius: 999px;
  font-size: 14px;
  letter-spacing: 0.08em;
  color: #fff;
  background: linear-gradient(120deg, var(--rain), #4cc98a);
  font-weight: 600;
  box-shadow: 0 8px 24px -8px var(--rain-glow);
  transition: transform 0.3s var(--ease), box-shadow 0.3s;
  white-space: nowrap;
}
.header-cta:hover { transform: translateY(-2px); box-shadow: 0 12px 30px -8px var(--rain-glow); }

.nav-toggle { display: none; }

/* ============================================================
   HERO（首页）
   ============================================================ */
.hero {
  min-height: 100svh;
  display: flex;
  align-items: center;
  position: relative;
  padding-top: var(--header-h);
  overflow: hidden;
}
.hero::before {
  /* 地平线春光 */
  content: "";
  position: absolute;
  left: 50%; bottom: -10%;
  width: 130vw; height: 55vh;
  transform: translateX(-50%);
  background: radial-gradient(ellipse at center, rgba(23, 164, 99, 0.13), transparent 62%);
  pointer-events: none;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 40px;
  align-items: stretch;
}
.hero-kicker {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--mono);
  font-size: 12.5px;
  letter-spacing: 0.28em;
  color: var(--gold);
  border: 1px solid rgba(201, 130, 42, 0.35);
  background: rgba(255, 255, 255, 0.5);
  padding: 8px 18px;
  border-radius: 999px;
  margin-bottom: 30px;
}
.hero-kicker::before {
  content: "";
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--blossom);
  box-shadow: 0 0 10px rgba(239, 157, 177, 0.8);
  animation: pulse 2.4s infinite;
}
@keyframes pulse { 50% { opacity: 0.35; } }

.hero-title {
  font-size: clamp(40px, 7.2vw, 88px);
  font-weight: 900;
  letter-spacing: 0.06em;
  line-height: 1.18;
}
.hero-title .line { display: block; }
.hero-title em {
  font-style: normal;
  background: linear-gradient(105deg, var(--rain-deep) 15%, #3dbd7e 50%, var(--blossom) 90%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-desc {
  margin-top: 28px;
  max-width: 620px;
  color: var(--ink-2);
  font-size: clamp(15px, 1.4vw, 17.5px);
  font-weight: 300;
}
.hero-actions { display: flex; gap: 16px; margin-top: 44px; flex-wrap: wrap; }

.btn-primary, .btn-ghost {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 15px 34px;
  border-radius: 999px;
  font-size: 15px;
  letter-spacing: 0.1em;
  transition: transform 0.3s var(--ease), box-shadow 0.3s, background 0.3s, border-color 0.3s;
  cursor: pointer;
  border: none;
  font-family: var(--sans);
}
.btn-primary {
  color: #fff; font-weight: 600;
  background: linear-gradient(120deg, var(--rain), #4cc98a);
  box-shadow: 0 10px 28px -10px var(--rain-glow);
}
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 16px 36px -10px var(--rain-glow); }
.btn-ghost {
  color: var(--ink);
  background: rgba(255, 255, 255, 0.6);
  border: 1px solid var(--line);
}
.btn-ghost:hover { border-color: var(--rain); color: var(--rain-deep); transform: translateY(-3px); background: #fff; }

.hero-aside {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  padding-bottom: 8px;
}
.hero-scroll {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.3em;
  color: var(--ink-3);
  writing-mode: vertical-rl;
  display: flex;
  align-items: center;
  gap: 12px;
}
.hero-scroll::after {
  content: "";
  width: 1px; height: 64px;
  background: linear-gradient(var(--rain), transparent);
  animation: drip 2.2s var(--ease) infinite;
}
@keyframes drip { 0% { transform: scaleY(0); transform-origin: top; } 55% { transform: scaleY(1); transform-origin: top; } 100% { transform: scaleY(0); transform-origin: bottom; } }

/* 数据带 */
.stats-band {
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
  background: rgba(255, 255, 255, 0.55);
  backdrop-filter: blur(6px);
}
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.stat {
  padding: 34px 28px;
  border-left: 1px solid var(--line-soft);
}
.stat:first-child { border-left: none; }
.stat-num {
  font-family: var(--mono);
  font-size: clamp(26px, 3vw, 38px);
  color: var(--rain-deep);
  font-weight: 600;
  letter-spacing: 0.02em;
}
.stat-num span { color: var(--gold); font-size: 0.6em; margin-left: 2px; }
.stat-label { color: var(--ink-3); font-size: 13.5px; letter-spacing: 0.12em; margin-top: 4px; }

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

.card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
  padding: 34px 30px;
  overflow: hidden;
  transition: transform 0.45s var(--ease), border-color 0.45s, background 0.45s, box-shadow 0.45s;
  cursor: default;
}
.card::before {
  /* hover 顶部流光 */
  content: "";
  position: absolute;
  top: 0; left: 20%; right: 20%;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--rain), var(--blossom), transparent);
  opacity: 0;
  transition: opacity 0.45s;
}
.card:hover { transform: translateY(-6px); border-color: rgba(23, 164, 99, 0.35); background: var(--surface-hover); box-shadow: 0 24px 48px -24px rgba(28, 43, 34, 0.28); }
.card:hover::before { opacity: 1; }

.card-icon {
  width: 52px; height: 52px;
  border-radius: 13px;
  display: grid; place-items: center;
  border: 1px solid rgba(23, 164, 99, 0.3);
  color: var(--rain-deep);
  background: rgba(23, 164, 99, 0.08);
  margin-bottom: 22px;
  font-size: 24px;
}
.card-tag {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.22em;
  color: var(--gold-dim);
  margin-bottom: 10px;
  display: block;
}
.card h3 { font-size: 21px; letter-spacing: 0.05em; margin-bottom: 12px; }
.card p { color: var(--ink-2); font-size: 14.5px; font-weight: 300; }
.card .card-links { margin-top: 18px; display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  font-size: 12px;
  color: var(--ink-3);
  border: 1px solid var(--line-soft);
  background: rgba(255, 255, 255, 0.6);
  padding: 4px 12px;
  border-radius: 999px;
  letter-spacing: 0.06em;
}

/* 案例卡片配图占位（渐变 + 编号，替换真实截图处） */
.case-thumb {
  height: 200px;
  border-radius: var(--radius);
  margin-bottom: 22px;
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line-soft);
  display: grid;
  place-items: center;
}
.case-thumb .glyph {
  font-family: var(--serif);
  font-size: 54px;
  font-weight: 900;
  color: rgba(28, 43, 34, 0.14);
  letter-spacing: 0.1em;
}
.case-thumb .thumb-no {
  position: absolute;
  top: 14px; left: 18px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  color: rgba(28, 43, 34, 0.45);
}
.case-thumb.t1 { background: linear-gradient(135deg, rgba(23, 164, 99, 0.2), rgba(255, 255, 255, 0.55)); }
.case-thumb.t2 { background: linear-gradient(135deg, rgba(224, 161, 60, 0.22), rgba(255, 255, 255, 0.55)); }
.case-thumb.t3 { background: linear-gradient(135deg, rgba(94, 160, 227, 0.2), rgba(255, 255, 255, 0.55)); }
.case-thumb.t4 { background: linear-gradient(135deg, rgba(239, 157, 177, 0.25), rgba(255, 255, 255, 0.55)); }
.case-thumb.t5 { background: linear-gradient(135deg, rgba(168, 94, 227, 0.16), rgba(255, 255, 255, 0.55)); }
.case-thumb.t6 { background: linear-gradient(135deg, rgba(94, 210, 190, 0.22), rgba(255, 255, 255, 0.55)); }

.case-card { cursor: pointer; }
.case-card .card-meta { display: flex; align-items: center; justify-content: space-between; margin-top: 18px; }
.case-card .open-hint {
  font-size: 13px;
  color: var(--rain-deep);
  letter-spacing: 0.1em;
  display: inline-flex; align-items: center; gap: 6px;
}
.case-card .open-hint::after { content: "→"; transition: transform 0.3s var(--ease); }
.case-card:hover .open-hint::after { transform: translateX(5px); }

/* ============================================================
   自研产品区（AI智台账）
   ============================================================ */
.product-band {
  position: relative;
  border-block: 1px solid var(--line-soft);
  background:
    radial-gradient(ellipse 60% 90% at 85% 20%, rgba(23, 164, 99, 0.09), transparent),
    radial-gradient(ellipse 50% 80% at 10% 90%, rgba(239, 157, 177, 0.1), transparent),
    var(--bg-2);
}
.product-layout { display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 60px; align-items: center; }
.product-badge {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.24em;
  color: var(--rain-deep);
  margin-bottom: 20px;
}
.product-badge::before { content: "◆"; font-size: 9px; }
.product-name { font-size: clamp(30px, 4vw, 48px); }
.product-name em { font-style: normal; color: var(--rain); }
.product-desc { color: var(--ink-2); margin: 22px 0 30px; font-weight: 300; max-width: 520px; }
.feature-list { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px 26px; margin-bottom: 36px; }
.feature-list li { list-style: none; display: flex; gap: 10px; align-items: baseline; color: var(--ink-2); font-size: 14.5px; }
.feature-list li::before { content: "✦"; color: var(--blossom); font-size: 11px; }

.product-visual {
  border: 1px solid rgba(23, 164, 99, 0.22);
  border-radius: var(--radius-lg);
  background: linear-gradient(160deg, #ffffff, #f3f8ec);
  padding: 26px;
  box-shadow: 0 30px 60px -30px rgba(28, 43, 34, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.9);
  position: relative;
  overflow: hidden;
}
.product-visual::before {
  content: "";
  position: absolute; inset: 0;
  background:
    linear-gradient(rgba(34, 90, 60, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(34, 90, 60, 0.05) 1px, transparent 1px);
  background-size: 34px 34px;
  pointer-events: none;
}
.pv-row {
  display: flex; align-items: center; justify-content: space-between;
  padding: 15px 16px;
  border: 1px solid var(--line-soft);
  border-radius: 10px;
  margin-bottom: 12px;
  background: rgba(255, 255, 255, 0.85);
  font-size: 13.5px;
  color: var(--ink-2);
  position: relative;
}
.pv-row .pv-status {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  padding: 3px 10px;
  border-radius: 999px;
  border: 1px solid rgba(23, 164, 99, 0.4);
  color: var(--rain-deep);
  background: rgba(23, 164, 99, 0.06);
}
.pv-row .pv-status.warn { border-color: rgba(201, 130, 42, 0.45); color: var(--gold); background: rgba(201, 130, 42, 0.06); }
.pv-head {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.26em;
  color: var(--ink-3);
  margin-bottom: 16px;
  display: flex; justify-content: space-between;
}

/* ============================================================
   新闻
   ============================================================ */
.news-item {
  display: grid;
  grid-template-columns: 110px 1fr auto;
  gap: 28px;
  align-items: center;
  padding: 28px 6px;
  border-bottom: 1px solid var(--line-soft);
  cursor: pointer;
  transition: background 0.3s;
}
.news-item:first-of-type { border-top: 1px solid var(--line-soft); }
.news-item:hover { background: rgba(23, 164, 99, 0.05); }
.news-date { font-family: var(--mono); font-size: 13px; color: var(--ink-3); line-height: 1.6; }
.news-date b { display: block; color: var(--rain-deep); font-size: 22px; font-weight: 600; }
.news-item h3 { font-size: 18px; letter-spacing: 0.04em; font-weight: 600; }
.news-item p { color: var(--ink-3); font-size: 13.5px; margin-top: 6px; font-weight: 300; }
.news-item .open-hint { color: var(--ink-3); font-family: var(--mono); font-size: 13px; }
.news-item:hover .open-hint { color: var(--rain-deep); }

/* ============================================================
   CTA 横幅
   ============================================================ */
.cta-band {
  position: relative;
  text-align: center;
  padding: clamp(70px, 9vw, 120px) 24px;
  border-top: 1px solid var(--line-soft);
  background:
    radial-gradient(ellipse 55% 100% at 50% 115%, rgba(23, 164, 99, 0.14), transparent),
    radial-gradient(ellipse 40% 70% at 85% 0%, rgba(239, 157, 177, 0.12), transparent),
    var(--bg-2);
  overflow: hidden;
}
.cta-band h2 { font-size: clamp(28px, 4.5vw, 50px); letter-spacing: 0.08em; }
.cta-band p { color: var(--ink-2); margin: 18px auto 38px; max-width: 560px; font-weight: 300; }
.cta-band .mono-note { font-family: var(--mono); font-size: 12px; letter-spacing: 0.3em; color: var(--gold-dim); margin-bottom: 22px; }

/* ============================================================
   页脚
   ============================================================ */
.site-footer {
  border-top: 1px solid var(--line-soft);
  background: var(--bg-2);
  position: relative;
  z-index: 2;
  padding: 64px 0 30px;
}
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 40px; margin-bottom: 50px; }
.footer-brand p { color: var(--ink-3); font-size: 13.5px; margin-top: 16px; max-width: 300px; font-weight: 300; }
.footer-col h4 { font-family: var(--mono); font-size: 12px; letter-spacing: 0.26em; color: var(--gold-dim); margin-bottom: 20px; font-weight: 600; }
.footer-col a, .footer-col span { display: block; color: var(--ink-2); font-size: 14px; padding: 5px 0; transition: color 0.25s; }
.footer-col a:hover { color: var(--rain-deep); }
.footer-bottom {
  border-top: 1px solid var(--line-soft);
  padding-top: 26px;
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  color: var(--ink-3);
  font-size: 12.5px;
  font-family: var(--mono);
  letter-spacing: 0.06em;
}
.footer-bottom a { color: var(--ink-3); transition: color 0.25s; }
.footer-bottom a:hover { color: var(--rain-deep); }

/* ============================================================
   内页 Hero（page-hero）
   ============================================================ */
.page-hero {
  padding: calc(var(--header-h) + clamp(60px, 8vw, 110px)) 0 clamp(50px, 6vw, 80px);
  position: relative;
  border-bottom: 1px solid var(--line-soft);
  background: linear-gradient(180deg, rgba(23, 164, 99, 0.07), transparent 70%);
}
.page-hero .crumb {
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.24em;
  color: var(--ink-3);
  margin-bottom: 18px;
}
.page-hero .crumb b { color: var(--rain-deep); font-weight: 400; }
.page-hero h1 { font-size: clamp(32px, 5vw, 58px); letter-spacing: 0.08em; font-weight: 900; }
.page-hero .lede { color: var(--ink-2); margin-top: 18px; max-width: 640px; font-weight: 300; }

/* ============================================================
   服务详情（交替布局）
   ============================================================ */
.service-row {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: clamp(36px, 6vw, 90px);
  align-items: center;
  padding: clamp(48px, 6vw, 84px) 0;
  border-bottom: 1px solid var(--line-soft);
}
.service-row:last-child { border-bottom: none; }
.service-row:nth-child(even) { direction: rtl; }
.service-row:nth-child(even) > * { direction: ltr; }
.service-no {
  font-family: var(--mono);
  font-size: clamp(48px, 6vw, 84px);
  font-weight: 600;
  color: transparent;
  -webkit-text-stroke: 1px rgba(23, 164, 99, 0.45);
  line-height: 1;
  margin-bottom: 22px;
}
.service-row h2 { font-size: clamp(24px, 3vw, 34px); letter-spacing: 0.06em; margin-bottom: 16px; }
.service-row .lead { color: var(--ink-2); font-weight: 300; margin-bottom: 24px; }
.service-points li {
  list-style: none;
  padding: 13px 0;
  border-bottom: 1px dashed var(--line-soft);
  color: var(--ink-2);
  font-size: 14.5px;
  display: flex; gap: 12px; align-items: baseline;
}
.service-points li:last-child { border-bottom: none; }
.service-points li::before { content: "›"; color: var(--rain); font-family: var(--mono); }
.service-visual {
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
  min-height: 300px;
  background:
    radial-gradient(circle at 70% 30%, rgba(23, 164, 99, 0.12), transparent 55%),
    radial-gradient(circle at 20% 85%, rgba(239, 157, 177, 0.12), transparent 50%),
    rgba(255, 255, 255, 0.55);
  display: grid; place-items: center;
  position: relative;
  overflow: hidden;
}
.service-visual .big-glyph {
  font-family: var(--serif);
  font-size: clamp(80px, 10vw, 150px);
  font-weight: 900;
  color: rgba(28, 43, 34, 0.07);
  letter-spacing: 0.1em;
}

/* 服务流程 */
.process-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; counter-reset: step; }
.process-step {
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  padding: 26px 20px;
  background: var(--surface);
  position: relative;
  transition: border-color 0.3s, transform 0.3s var(--ease), box-shadow 0.3s;
}
.process-step:hover { border-color: rgba(23, 164, 99, 0.4); transform: translateY(-4px); box-shadow: 0 18px 36px -20px rgba(28, 43, 34, 0.25); }
.process-step .step-no {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--gold);
  letter-spacing: 0.2em;
  display: block;
  margin-bottom: 12px;
}
.process-step h4 { font-family: var(--serif); font-size: 17px; letter-spacing: 0.08em; margin-bottom: 8px; }
.process-step p { color: var(--ink-3); font-size: 12.5px; font-weight: 300; line-height: 1.7; }

/* ============================================================
   关于我们
   ============================================================ */
.about-quote {
  font-family: var(--serif);
  font-size: clamp(22px, 3vw, 32px);
  letter-spacing: 0.14em;
  line-height: 2;
  text-align: center;
  padding: clamp(50px, 7vw, 90px) 20px;
  position: relative;
}
.about-quote em { font-style: normal; color: var(--rain-deep); }
.about-quote::before, .about-quote::after {
  content: "";
  position: absolute;
  left: 50%; transform: translateX(-50%);
  width: 56px; height: 1px;
  background: linear-gradient(90deg, transparent, var(--rain), transparent);
}
.about-quote::before { top: 0; }
.about-quote::after { bottom: 0; }

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

/* ============================================================
   联系页
   ============================================================ */
.contact-layout { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: clamp(40px, 6vw, 80px); align-items: start; }
.contact-info-block { border-left: 2px solid rgba(23, 164, 99, 0.4); padding-left: 24px; margin-bottom: 36px; }
.contact-info-block .label {
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.26em;
  color: var(--gold-dim);
  margin-bottom: 8px;
}
.contact-info-block .value { font-size: clamp(17px, 2vw, 21px); font-family: var(--serif); letter-spacing: 0.04em; }
.contact-info-block .sub { color: var(--ink-3); font-size: 13px; margin-top: 4px; font-weight: 300; }

.form-card {
  background: var(--surface);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius-lg);
  padding: clamp(28px, 4vw, 44px);
  box-shadow: 0 24px 60px -30px rgba(28, 43, 34, 0.25);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { margin-bottom: 20px; }
.field label { display: block; font-size: 13.5px; color: var(--ink-2); letter-spacing: 0.1em; margin-bottom: 9px; }
.field label b { color: var(--rain-deep); font-weight: 400; }
.field input, .field textarea, .field select {
  width: 100%;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 14px 16px;
  color: var(--ink);
  font-family: var(--sans);
  font-size: 14.5px;
  transition: border-color 0.3s, box-shadow 0.3s;
  outline: none;
  resize: vertical;
}
.field input:focus, .field textarea:focus, .field select:focus {
  border-color: rgba(23, 164, 99, 0.6);
  box-shadow: 0 0 0 3px rgba(23, 164, 99, 0.13);
}
.field input::placeholder, .field textarea::placeholder { color: var(--ink-3); }
.field .err { color: #d4553c; font-size: 12px; margin-top: 6px; display: none; }
.field.invalid input, .field.invalid textarea { border-color: rgba(212, 85, 60, 0.65); }
.field.invalid .err { display: block; }
.form-submit { width: 100%; justify-content: center; margin-top: 6px; }
.form-note { text-align: center; color: var(--ink-3); font-size: 12.5px; margin-top: 16px; }
.form-success {
  display: none;
  text-align: center;
  padding: 40px 10px;
}
.form-success .check {
  width: 64px; height: 64px;
  margin: 0 auto 20px;
  border-radius: 50%;
  border: 1px solid rgba(23, 164, 99, 0.5);
  display: grid; place-items: center;
  color: var(--rain-deep);
  font-size: 26px;
  background: rgba(23, 164, 99, 0.07);
  box-shadow: 0 0 40px -8px var(--rain-glow);
}
.form-success h3 { font-size: 22px; margin-bottom: 10px; }
.form-success p { color: var(--ink-3); font-size: 14px; }
.form-success a { color: var(--rain-deep); text-decoration: underline; text-underline-offset: 3px; }
.form-success a:hover { color: var(--rain); }

/* ============================================================
   弹窗
   ============================================================ */
.modal-mask {
  position: fixed; inset: 0;
  z-index: 90;
  background: rgba(28, 43, 34, 0.35);
  backdrop-filter: blur(8px);
  display: grid;
  place-items: center;
  padding: 24px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.35s var(--ease), visibility 0.35s;
}
.modal-mask.open { opacity: 1; visibility: visible; }
.modal {
  width: min(680px, 100%);
  max-height: 84vh;
  overflow-y: auto;
  background: linear-gradient(165deg, #ffffff, #f5f9ee);
  border: 1px solid rgba(23, 164, 99, 0.25);
  border-radius: var(--radius-lg);
  padding: clamp(28px, 4vw, 44px);
  position: relative;
  transform: translateY(24px) scale(0.98);
  transition: transform 0.4s var(--ease);
  box-shadow: 0 40px 90px -30px rgba(28, 43, 34, 0.4);
}
.modal-mask.open .modal { transform: translateY(0) scale(1); }
.modal-close {
  position: absolute;
  top: 18px; right: 18px;
  width: 38px; height: 38px;
  border-radius: 50%;
  border: 1px solid var(--line-soft);
  background: rgba(255, 255, 255, 0.8);
  color: var(--ink-2);
  font-size: 17px;
  cursor: pointer;
  transition: border-color 0.25s, color 0.25s, transform 0.25s;
}
.modal-close:hover { border-color: var(--rain); color: var(--rain-deep); transform: rotate(90deg); }
.modal .modal-tag {
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.24em;
  color: var(--gold-dim);
  margin-bottom: 12px;
  display: block;
}
.modal h3 { font-size: 26px; letter-spacing: 0.06em; margin-bottom: 18px; }
.modal .modal-body { color: var(--ink-2); font-size: 14.5px; font-weight: 300; }
.modal .modal-body h4 {
  font-family: var(--serif);
  color: var(--ink);
  font-size: 15.5px;
  letter-spacing: 0.1em;
  margin: 24px 0 10px;
}
.modal .modal-body h4::before { content: "◈ "; color: var(--rain); font-size: 12px; }
.modal .modal-body ul { padding-left: 2px; }
.modal .modal-body ul li { list-style: none; padding: 6px 0; display: flex; gap: 10px; align-items: baseline; }
.modal .modal-body ul li::before { content: "›"; color: var(--rain); font-family: var(--mono); }
.modal .modal-link {
  display: inline-flex; align-items: center; gap: 8px;
  margin-top: 26px;
  padding: 12px 26px;
  border-radius: 999px;
  border: 1px solid rgba(23, 164, 99, 0.45);
  color: var(--rain-deep);
  font-size: 14px;
  letter-spacing: 0.08em;
  transition: background 0.3s, transform 0.3s var(--ease);
}
.modal .modal-link:hover { background: rgba(23, 164, 99, 0.08); transform: translateY(-2px); }

/* ============================================================
   浮动组件
   ============================================================ */
.float-widgets {
  position: fixed;
  right: 26px; bottom: 26px;
  z-index: 70;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.float-btn {
  width: 52px; height: 52px;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(8px);
  color: var(--rain-deep);
  display: grid; place-items: center;
  cursor: pointer;
  font-size: 20px;
  transition: transform 0.3s var(--ease), border-color 0.3s, box-shadow 0.3s;
  position: relative;
  box-shadow: 0 8px 24px -12px rgba(28, 43, 34, 0.35);
}
.float-btn:hover { transform: translateY(-4px); border-color: var(--rain); box-shadow: 0 12px 28px -8px var(--rain-glow); }
.float-btn .bubble {
  position: absolute;
  right: 64px; top: 50%;
  transform: translateY(-50%) translateX(8px);
  white-space: nowrap;
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid var(--line-soft);
  border-radius: 10px;
  padding: 10px 16px;
  font-size: 13px;
  color: var(--ink-2);
  box-shadow: 0 12px 30px -16px rgba(28, 43, 34, 0.35);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s, transform 0.3s var(--ease);
}
.float-btn:hover .bubble { opacity: 1; transform: translateY(-50%) translateX(0); }
.float-btn.main {
  background: linear-gradient(135deg, var(--rain), #4cc98a);
  color: #fff;
  border: none;
  box-shadow: 0 10px 30px -8px var(--rain-glow);
}
#to-top { opacity: 0; visibility: hidden; }
#to-top.show { opacity: 1; visibility: visible; }

/* —— 微信二维码 —— */
.qr-figure {
  margin: 16px 0 0;
  display: inline-block;
  text-align: center;
}
.qr-figure img {
  width: 132px;
  height: 132px;
  max-width: none;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: #fff;
  padding: 6px;
  display: block;
  box-shadow: 0 12px 28px -16px rgba(28, 43, 34, 0.35);
}
.qr-figure figcaption {
  font-size: 12px;
  color: var(--ink-3);
  margin-top: 8px;
  letter-spacing: 0.08em;
}

.bubble.bubble-qr {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 7px;
  white-space: normal;
  padding: 12px 14px;
  width: 136px;
}
.bubble.bubble-qr img {
  width: 108px;
  height: 108px;
  max-width: none;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: 9px;
  border: 1px solid var(--line-soft);
  background: #fff;
  padding: 4px;
  display: block;
}
.bubble.bubble-qr b { font-size: 13px; color: var(--ink); letter-spacing: 0.08em; font-weight: 600; white-space: nowrap; }
.bubble.bubble-qr em {
  font-style: normal;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-3);
  letter-spacing: 0.06em;
}

/* ============================================================
   滚动显现
   ============================================================ */
.reveal { opacity: 0; transform: translateY(34px); transition: opacity 0.9s var(--ease), transform 0.9s var(--ease); }
.reveal.visible { opacity: 1; transform: none; }
.reveal[data-delay="1"] { transition-delay: 0.12s; }
.reveal[data-delay="2"] { transition-delay: 0.24s; }
.reveal[data-delay="3"] { transition-delay: 0.36s; }
.reveal[data-delay="4"] { transition-delay: 0.48s; }

/* Hero 载入编排 */
.hero-load { opacity: 0; transform: translateY(30px); animation: heroIn 1.1s var(--ease) forwards; }
.hero-load[data-delay="1"] { animation-delay: 0.15s; }
.hero-load[data-delay="2"] { animation-delay: 0.3s; }
.hero-load[data-delay="3"] { animation-delay: 0.45s; }
.hero-load[data-delay="4"] { animation-delay: 0.6s; }
@keyframes heroIn { to { opacity: 1; transform: none; } }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .reveal, .hero-load { opacity: 1; transform: none; }
}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 1024px) {
  .cols-3 { grid-template-columns: repeat(2, 1fr); }
  .product-layout { grid-template-columns: 1fr; gap: 44px; }
  .process-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .stat:nth-child(3) { border-left: none; }
  .stat { border-top: 1px solid var(--line-soft); }
  .stat:nth-child(-n+2) { border-top: none; }
}

@media (max-width: 768px) {
  .main-nav {
    position: fixed;
    top: var(--header-h); left: 0; right: 0;
    flex-direction: column;
    align-items: stretch;
    background: rgba(248, 250, 244, 0.97);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--line);
    padding: 18px 24px 26px;
    gap: 4px;
    transform: translateY(-12px);
    opacity: 0;
    visibility: hidden;
    transition: all 0.35s var(--ease);
  }
  .main-nav.open { transform: none; opacity: 1; visibility: visible; }
  .main-nav a { padding: 13px 12px; font-size: 16px; }
  .main-nav a.active::after { display: none; }
  .nav-toggle {
    display: grid;
    place-items: center;
    width: 42px; height: 42px;
    background: transparent;
    border: 1px solid var(--line);
    border-radius: 10px;
    color: var(--ink);
    cursor: pointer;
    font-size: 18px;
  }
  .header-cta { display: none; }
  .hero-grid { grid-template-columns: 1fr; }
  .hero-aside { display: none; }
  .cols-3, .cols-2 { grid-template-columns: 1fr; }
  .service-row { grid-template-columns: 1fr; }
  .service-row:nth-child(even) { direction: ltr; }
  .service-row .service-visual { min-height: 220px; order: 2; }
  .contact-layout { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .feature-list { grid-template-columns: 1fr; }
  .news-item { grid-template-columns: 74px 1fr; }
  .news-item .open-hint { display: none; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; }
  .process-grid { grid-template-columns: 1fr; }
  .vertical-text { display: none; }
  .float-widgets { right: 16px; bottom: 16px; }
}