/* ============================================================
   友旺咨询 SHYWZX · 设计系统 v2.0（明亮轻快 · 天空蓝）
   白底 × 淡蓝渐变 × 清爽留白
   ============================================================ */

:root {
  /* 色板 —— 天空蓝系 */
  --ink-950: #f4f9ff;            /* 页面底 */
  --ink-900: #edf5fe;
  --ink-850: #e6f0fd;
  --ink-800: #dceafa;
  --ink-700: #cfdef6;
  --ink-600: #bcd0ee;
  --line: rgba(31, 85, 173, 0.10);
  --line-strong: rgba(79, 139, 232, 0.32);

  --gold-300: #b8d8fb;           /* 浅蓝亮 */
  --gold-400: #5b93ea;           /* 主蓝 */
  --gold-500: #2f6fd6;           /* 深蓝 */
  --gold-600: #1f55ad;
  --gold-grad: linear-gradient(135deg, #7cb3f7 0%, #4f8be8 48%, #2f6fd6 100%);

  --paper: #ffffff;
  --text-hi: #0d1f3c;            /* 深海军蓝文字 */
  --text-mid: #475f82;
  --text-low: #8294b0;

  --font-serif: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "SimSun", serif;
  --font-sans: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;

  --container: 1200px;
  --radius: 8px;
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-soft: cubic-bezier(0.33, 0, 0.2, 1);
  --shadow-soft: 0 8px 34px rgba(31, 85, 173, 0.06);
  --shadow-hover: 0 16px 48px rgba(31, 85, 173, 0.12);
}

/* ---------- Reset ---------- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body {
  font-family: var(--font-sans);
  background: var(--ink-950);
  color: var(--text-mid);
  font-size: 16px;
  line-height: 1.8;
  letter-spacing: 0.02em;
  overflow-x: hidden;
}

::selection { background: var(--gold-500); color: #fff; }

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; }

/* ---------- 背景氛围 ---------- */
.site-bg {
  position: fixed; inset: 0; z-index: -2;
  background:
    radial-gradient(1100px 720px at 88% -8%, rgba(124, 179, 247, 0.22), transparent 62%),
    radial-gradient(900px 680px at -8% 26%, rgba(124, 179, 247, 0.16), transparent 60%),
    linear-gradient(180deg, #f7fbff 0%, #f2f8fe 52%, #eef6fd 100%);
}
.site-grid {
  position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background-image:
    linear-gradient(rgba(47, 111, 214, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(47, 111, 214, 0.035) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, #000 30%, transparent 78%);
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, #000 30%, transparent 78%);
}

/* ---------- 容器 ---------- */
.container { max-width: var(--container); margin: 0 auto; padding: 0 32px; }

/* ---------- 排版 ---------- */
.serif { font-family: var(--font-serif); }

.sec { padding: 120px 0; position: relative; }
.sec-head { margin-bottom: 72px; }

.kicker {
  display: inline-flex; align-items: center; gap: 14px;
  font-size: 13px; letter-spacing: 0.42em; color: var(--gold-500);
  text-transform: uppercase; font-weight: 600;
}
.kicker::before {
  content: ""; width: 34px; height: 2px;
  background: var(--gold-grad); border-radius: 2px;
}

.sec-title {
  font-family: var(--font-serif);
  font-size: clamp(30px, 4vw, 46px);
  font-weight: 700;
  color: var(--text-hi);
  line-height: 1.35;
  letter-spacing: 0.05em;
  margin-top: 20px;
}
.sec-sub {
  margin-top: 18px; font-size: 16px; max-width: 640px; color: var(--text-mid);
}

.sec-head.center { text-align: center; }
.sec-head.center .kicker::before { display: none; }
.sec-head.center .kicker::after {
  content: ""; width: 34px; height: 2px; border-radius: 2px; background: var(--gold-grad);
}
.sec-head.center .sec-sub { margin-left: auto; margin-right: auto; }

/* ---------- 导航 ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  transition: all 0.45s var(--ease-soft);
  border-bottom: 1px solid transparent;
}
.nav .container {
  display: flex; align-items: center; justify-content: space-between;
  height: 84px; transition: height 0.4s var(--ease-soft);
}
.nav.scrolled {
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-bottom-color: var(--line);
  box-shadow: 0 4px 28px rgba(31, 85, 173, 0.06);
}
.nav.scrolled .container { height: 68px; }

.brand { display: flex; align-items: center; gap: 14px; }
.brand-mark {
  width: 44px; height: 44px; flex: none;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  display: grid; place-items: center;
  background: radial-gradient(circle at 30% 25%, rgba(124, 179, 247, 0.30), rgba(79, 139, 232, 0.08));
  position: relative;
}
.brand-mark::after {
  content: ""; position: absolute; inset: 5px;
  border: 1px dashed rgba(47, 111, 214, 0.35); border-radius: 50%;
  animation: spin 24s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }
.brand-mark svg { width: 20px; height: 20px; }

.brand-text { line-height: 1.2; }
.brand-name {
  font-family: var(--font-serif);
  font-size: 21px; font-weight: 700; color: var(--text-hi);
  letter-spacing: 0.18em;
}
.brand-tag {
  font-size: 10px; color: var(--gold-500);
  letter-spacing: 0.32em; margin-top: 2px;
}

.nav-links { display: flex; align-items: center; gap: 42px; }
.nav-links a {
  font-size: 14.5px; letter-spacing: 0.12em; color: var(--text-mid);
  position: relative; padding: 6px 0; transition: color 0.3s;
}
.nav-links a::after {
  content: ""; position: absolute; left: 0; bottom: 0;
  width: 0; height: 2px; background: var(--gold-grad);
  border-radius: 2px;
  transition: width 0.35s var(--ease-out);
}
.nav-links a:hover { color: var(--text-hi); }
.nav-links a:hover::after { width: 100%; }
.nav-links a.active { color: var(--gold-500); font-weight: 600; }
.nav-links a.active::after { width: 100%; }

.nav-cta {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 22px; font-size: 14px; letter-spacing: 0.14em;
  color: #ffffff; font-weight: 600;
  background: var(--gold-grad);
  border-radius: 100px;
  box-shadow: 0 8px 24px rgba(79, 139, 232, 0.30);
  transition: all 0.35s var(--ease-out);
}
.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 34px rgba(47, 111, 214, 0.40);
}

.nav-toggle {
  display: none; background: #fff; border: 1px solid var(--line);
  width: 44px; height: 44px; border-radius: 8px;
  flex-direction: column; align-items: center; justify-content: center; gap: 5px;
  box-shadow: var(--shadow-soft);
}
.nav-toggle span {
  width: 20px; height: 2px; background: var(--text-hi);
  border-radius: 2px;
  transition: all 0.3s;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex; align-items: center;
  padding: 160px 0 100px;
  overflow: hidden;
}
.hero-glow {
  position: absolute; border-radius: 50%; filter: blur(80px); pointer-events: none;
}
.hero-glow.g1 { width: 620px; height: 620px; background: rgba(124, 179, 247, 0.35); top: -140px; right: -110px; animation: float1 14s ease-in-out infinite; }
.hero-glow.g2 { width: 520px; height: 520px; background: rgba(47, 111, 214, 0.16); bottom: -190px; left: -130px; animation: float2 18s ease-in-out infinite; }
@keyframes float1 { 0%,100% { transform: translate(0,0); } 50% { transform: translate(-40px, 40px); } }
@keyframes float2 { 0%,100% { transform: translate(0,0); } 50% { transform: translate(50px, -30px); } }

.hero-inner { position: relative; z-index: 2; width: 100%; }

.hero-eyebrow {
  display: inline-flex; align-items: center; gap: 12px;
  padding: 8px 18px;
  border: 1px solid var(--line-strong);
  border-radius: 100px;
  font-size: 12.5px; letter-spacing: 0.3em; color: var(--gold-500);
  background: rgba(255, 255, 255, 0.75);
  box-shadow: var(--shadow-soft);
  margin-bottom: 36px;
}
.hero-eyebrow .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--gold-500); box-shadow: 0 0 12px rgba(79, 139, 232, 0.8); animation: pulse 2.4s infinite; }
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: 0.35; } }

.hero-title {
  font-family: var(--font-sans);
  font-size: clamp(40px, 6.4vw, 72px);
  font-weight: 800;
  line-height: 1.25;
  color: var(--text-hi);
  letter-spacing: 0.02em;
  max-width: 860px;
}
.hero-title .grad {
  background: var(--gold-grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero-sub {
  margin-top: 30px; font-size: 17px; max-width: 620px; color: var(--text-mid);
  line-height: 2;
}
.hero-actions { margin-top: 48px; display: flex; gap: 20px; flex-wrap: wrap; }

.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 15px 34px; font-size: 15px; letter-spacing: 0.16em;
  border-radius: 100px; transition: all 0.35s var(--ease-out);
  font-weight: 600;
}
.btn-gold {
  background: var(--gold-grad); color: #ffffff;
  box-shadow: 0 10px 30px rgba(79, 139, 232, 0.30);
}
.btn-gold:hover { transform: translateY(-3px); box-shadow: 0 16px 44px rgba(47, 111, 214, 0.40); }
.btn-ghost {
  border: 1px solid rgba(47, 111, 214, 0.30); color: var(--gold-600);
  background: rgba(255, 255, 255, 0.8);
}
.btn-ghost:hover { border-color: var(--gold-500); color: var(--gold-500); transform: translateY(-3px); box-shadow: var(--shadow-soft); }

.hero-stats {
  margin-top: 84px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
  padding-top: 44px;
  max-width: 880px;
}
.stat { border-left: 1px solid var(--line); padding-left: 28px; }
.stat:first-child { border-left: none; padding-left: 0; }
.stat-num {
  font-family: var(--font-serif);
  font-size: clamp(34px, 3.6vw, 48px); font-weight: 700;
  color: var(--text-hi); line-height: 1; letter-spacing: 0.02em;
  display: flex; align-items: baseline;
}
.stat-num .unit { font-size: 20px; color: var(--gold-500); margin-left: 6px; letter-spacing: 0.1em; }
.stat-label { margin-top: 10px; font-size: 13.5px; letter-spacing: 0.22em; color: var(--text-low); }

.hero-scroll {
  position: absolute; bottom: 36px; left: 50%; transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 10px;
  color: var(--text-low); font-size: 11px; letter-spacing: 0.4em;
  z-index: 2;
}
.hero-scroll .line {
  width: 1px; height: 48px; overflow: hidden; position: relative;
  background: rgba(47, 111, 214, 0.18);
}
.hero-scroll .line::after {
  content: ""; position: absolute; top: -100%; left: 0;
  width: 100%; height: 100%;
  background: var(--gold-500);
  animation: scrolldrop 2.2s var(--ease-soft) infinite;
}
@keyframes scrolldrop { 0% { top: -100%; } 60% { top: 100%; } 100% { top: 100%; } }

/* ---------- 通用面板 ---------- */
.panel {
  background: var(--paper);
  border: 1px solid rgba(31, 85, 173, 0.08);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  transition: all 0.45s var(--ease-out);
  position: relative;
  overflow: hidden;
}
.panel::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(600px 300px at var(--mx, 20%) var(--my, 0%), rgba(124, 179, 247, 0.14), transparent 60%);
  opacity: 0; transition: opacity 0.5s;
  pointer-events: none;
}
.panel:hover {
  border-color: var(--line-strong);
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}
.panel:hover::before { opacity: 1; }

/* ---------- 服务网格 ---------- */
.svc-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.svc-card { padding: 40px 34px; }
.svc-num {
  font-family: var(--font-serif); font-size: 13px; color: var(--gold-500);
  letter-spacing: 0.3em; display: flex; align-items: center; gap: 10px;
  font-weight: 600;
}
.svc-num::after { content: ""; width: 28px; height: 1px; background: var(--line-strong); }
.svc-icon {
  width: 52px; height: 52px; margin: 26px 0 22px;
  border: 1px solid var(--line-strong); border-radius: 12px;
  display: grid; place-items: center; color: var(--gold-500);
  background: linear-gradient(135deg, rgba(124, 179, 247, 0.18), rgba(79, 139, 232, 0.06));
  transition: all 0.4s var(--ease-out);
}
.svc-card:hover .svc-icon {
  background: var(--gold-grad); color: #ffffff;
  box-shadow: 0 10px 26px rgba(79, 139, 232, 0.35);
  transform: rotate(-4deg) scale(1.05);
}
.svc-icon svg { width: 24px; height: 24px; }
.svc-title { font-family: var(--font-serif); font-size: 20px; font-weight: 700; color: var(--text-hi); letter-spacing: 0.05em; }
.svc-desc { margin-top: 12px; font-size: 14.5px; color: var(--text-mid); line-height: 1.9; }
.svc-tags { margin-top: 18px; display: flex; flex-wrap: wrap; gap: 8px; }
.tag {
  font-size: 11.5px; letter-spacing: 0.1em; color: var(--gold-600);
  border: 1px solid rgba(79, 139, 232, 0.25); border-radius: 100px;
  padding: 4px 12px; background: rgba(124, 179, 247, 0.10);
}

/* ---------- 王牌项目 ---------- */
.ace-wrap {
  display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 56px; align-items: center;
}
.ace-visual {
  position: relative;
  border: 1px solid rgba(31, 85, 173, 0.10);
  border-radius: var(--radius);
  background:
    radial-gradient(520px 400px at 70% 10%, rgba(124, 179, 247, 0.25), transparent 60%),
    linear-gradient(160deg, #ffffff, #f0f7fe);
  box-shadow: var(--shadow-soft);
  padding: 48px;
  overflow: hidden;
}
.ace-visual::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, transparent, var(--gold-500), transparent);
}
.ace-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 7px 16px; border-radius: 100px;
  background: linear-gradient(135deg, rgba(124, 179, 247, 0.20), rgba(79, 139, 232, 0.10));
  border: 1px solid var(--line-strong);
  font-size: 12px; letter-spacing: 0.2em; color: var(--gold-600); font-weight: 600;
}
.ace-money {
  font-family: var(--font-serif);
  font-size: clamp(48px, 6vw, 72px); font-weight: 700; color: var(--text-hi);
  margin-top: 26px; line-height: 1.1;
}
.ace-money .unit { font-size: 24px; color: var(--gold-500); margin-left: 8px; }
.ace-feat {
  margin-top: 14px; font-size: 14px; color: var(--text-mid); letter-spacing: 0.14em;
  display: flex; gap: 18px; flex-wrap: wrap;
}
.ace-feat span { display: inline-flex; align-items: center; gap: 8px; }
.ace-feat svg { width: 14px; height: 14px; color: var(--gold-500); }
.ace-list { margin-top: 36px; display: flex; flex-direction: column; }
.ace-item {
  display: flex; gap: 16px; padding: 16px 0;
  border-top: 1px solid var(--line); align-items: flex-start;
}
.ace-item .idx {
  font-family: var(--font-serif); font-size: 13px; color: var(--gold-500);
  padding-top: 5px; min-width: 22px; letter-spacing: 0.1em; font-weight: 600;
}
.ace-item h4 { font-size: 15.5px; color: var(--text-hi); font-weight: 600; letter-spacing: 0.04em; }
.ace-item p { font-size: 13.5px; color: var(--text-mid); margin-top: 3px; line-height: 1.7; }

/* ---------- 流程 ---------- */
.flow-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; counter-reset: flow; }
.flow-card { padding: 40px 30px; position: relative; }
.flow-card::after {
  counter-increment: flow;
  content: "0" counter(flow);
  position: absolute; top: 28px; right: 26px;
  font-family: var(--font-serif); font-size: 42px; font-weight: 700;
  color: rgba(47, 111, 214, 0.07); letter-spacing: 0.05em;
}
.flow-ico { width: 48px; height: 48px; color: var(--gold-500); margin-bottom: 22px; }
.flow-ico svg { width: 34px; height: 34px; }
.flow-card h4 { font-family: var(--font-serif); font-size: 18px; color: var(--text-hi); font-weight: 700; letter-spacing: 0.06em; }
.flow-card p { margin-top: 10px; font-size: 13.5px; color: var(--text-mid); line-height: 1.85; }
.flow-arrow {
  position: absolute; top: 50%; right: -22px; transform: translateY(-50%);
  color: var(--gold-500); z-index: 3; width: 20px; height: 20px;
}
.flow-card:nth-child(4) .flow-arrow { display: none; }

/* ---------- 案例 ---------- */
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.case-card { padding: 34px 30px; }
.case-co {
  display: flex; align-items: center; gap: 14px;
  font-family: var(--font-serif); font-size: 17px; font-weight: 700;
  color: var(--text-hi); letter-spacing: 0.03em; line-height: 1.5;
}
.case-co .mark {
  width: 38px; height: 38px; flex: none; border-radius: 8px;
  border: 1px solid var(--line-strong);
  display: grid; place-items: center;
  font-size: 13px; color: var(--gold-600); font-weight: 600;
  background: linear-gradient(135deg, rgba(124, 179, 247, 0.22), rgba(79, 139, 232, 0.08));
}
.case-tags { margin-top: 16px; display: flex; flex-wrap: wrap; gap: 8px; }
.case-desc { margin-top: 14px; font-size: 13.5px; color: var(--text-mid); line-height: 1.8; }
.case-proj {
  margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--line);
  font-size: 12px; letter-spacing: 0.14em; color: var(--gold-600);
  display: flex; flex-wrap: wrap; gap: 6px 14px;
}
.case-proj span::before { content: "◆"; color: var(--gold-500); font-size: 8px; margin-right: 6px; vertical-align: 1px; }

/* ---------- 优势 ---------- */
.adv-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.adv-card { padding: 44px 36px; text-align: center; }
.adv-icon {
  width: 68px; height: 68px; margin: 0 auto 26px;
  border-radius: 50%;
  border: 1px solid var(--line-strong);
  display: grid; place-items: center;
  color: var(--gold-500);
  background: radial-gradient(circle at 35% 30%, rgba(124, 179, 247, 0.30), rgba(79, 139, 232, 0.06));
  position: relative;
}
.adv-icon svg { width: 28px; height: 28px; }
.adv-card h4 { font-family: var(--font-serif); font-size: 21px; color: var(--text-hi); font-weight: 700; letter-spacing: 0.08em; }
.adv-card p { margin-top: 14px; font-size: 14px; color: var(--text-mid); line-height: 1.9; }

/* ---------- 数字条 ---------- */
.metrics {
  background: linear-gradient(160deg, rgba(124, 179, 247, 0.16), rgba(79, 139, 232, 0.05));
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  display: grid; grid-template-columns: repeat(4, 1fr);
  padding: 52px 20px;
}
.metric { text-align: center; position: relative; }
.metric + .metric::before {
  content: ""; position: absolute; left: 0; top: 50%; transform: translateY(-50%);
  width: 1px; height: 56px; background: rgba(47, 111, 214, 0.12);
}
.metric-num { font-family: var(--font-serif); font-size: clamp(40px, 4vw, 58px); font-weight: 700; color: var(--text-hi); }
.metric-num .unit { font-size: 20px; color: var(--gold-500); margin-left: 4px; }
.metric-label { margin-top: 10px; font-size: 13px; letter-spacing: 0.24em; color: var(--text-low); }

/* ---------- 合作品牌 ---------- */
.logo-cloud { display: flex; flex-wrap: wrap; justify-content: center; gap: 14px 18px; }
.logo-chip {
  padding: 16px 26px;
  border: 1px solid var(--line);
  border-radius: 10px;
  font-family: var(--font-serif);
  font-size: 15.5px; letter-spacing: 0.1em; color: var(--text-mid);
  background: var(--paper);
  box-shadow: var(--shadow-soft);
  transition: all 0.35s var(--ease-out);
  white-space: nowrap;
}
.logo-chip:hover {
  color: var(--gold-600); border-color: var(--line-strong);
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
}

/* ---------- 政策动态 ---------- */
.news-list { display: flex; flex-direction: column; }
.news-row {
  display: grid; grid-template-columns: 120px 1fr auto; gap: 28px;
  align-items: center;
  padding: 26px 4px;
  border-bottom: 1px solid var(--line);
  transition: all 0.35s var(--ease-out);
  cursor: pointer;
}
.news-row:first-child { border-top: 1px solid var(--line); }
.news-row:hover { padding-left: 16px; }
.news-date { font-family: var(--font-serif); font-size: 14px; color: var(--gold-500); letter-spacing: 0.1em; font-weight: 600; }
.news-title { font-size: 16.5px; color: var(--text-hi); letter-spacing: 0.03em; transition: color 0.3s; line-height: 1.7; }
.news-row:hover .news-title { color: var(--gold-600); }
.news-cat {
  font-size: 11.5px; letter-spacing: 0.16em; color: var(--gold-600);
  border: 1px solid rgba(79, 139, 232, 0.25); padding: 4px 12px; border-radius: 100px;
  background: rgba(124, 179, 247, 0.10);
  white-space: nowrap;
}

/* ---------- 关于 · 双栏 ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 72px; align-items: center; }
.about-fig {
  position: relative; padding: 40px 40px 56px;
  border: 1px solid rgba(31, 85, 173, 0.10); border-radius: var(--radius);
  background:
    radial-gradient(480px 360px at 80% 0%, rgba(124, 179, 247, 0.22), transparent 60%),
    linear-gradient(160deg, #ffffff, #f0f7fe);
  box-shadow: var(--shadow-soft);
}
.about-fig::before {
  content: ""; position: absolute; top: -1px; left: 40px; right: 40px; height: 3px;
  background: linear-gradient(90deg, transparent, var(--gold-500), transparent);
}
.about-quote {
  font-family: var(--font-serif);
  font-size: clamp(22px, 2.4vw, 28px);
  line-height: 1.8; color: var(--text-hi); letter-spacing: 0.04em;
}
.about-quote .mark { color: var(--gold-500); font-size: 1.3em; line-height: 0; }
.about-sign { margin-top: 28px; display: flex; align-items: center; gap: 18px; }
.about-sign .ln { width: 44px; height: 2px; border-radius: 2px; background: var(--gold-grad); }
.about-sign .who { font-size: 15px; color: var(--gold-600); letter-spacing: 0.14em; font-weight: 600; }
.about-sign .what { font-size: 12px; color: var(--text-low); letter-spacing: 0.2em; margin-top: 2px; }

.about-points { display: flex; flex-direction: column; gap: 34px; }
.ap { display: flex; gap: 22px; }
.ap .no {
  font-family: var(--font-serif); font-size: 15px; color: var(--gold-500);
  letter-spacing: 0.2em; padding-top: 6px; min-width: 40px; font-weight: 600;
}
.ap h4 { font-family: var(--font-serif); font-size: 20px; color: var(--text-hi); font-weight: 700; letter-spacing: 0.05em; }
.ap p { margin-top: 10px; font-size: 14.5px; color: var(--text-mid); line-height: 1.9; }

/* ---------- CTA 横幅 ---------- */
.cta-band {
  position: relative; overflow: hidden;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  background:
    radial-gradient(700px 400px at 85% 20%, rgba(124, 179, 247, 0.30), transparent 60%),
    radial-gradient(500px 380px at 5% 100%, rgba(47, 111, 214, 0.10), transparent 65%),
    linear-gradient(160deg, #ffffff, #eaf4fd);
  box-shadow: var(--shadow-soft);
  padding: 76px 64px;
  text-align: center;
}
.cta-band h2 {
  font-family: var(--font-serif); font-size: clamp(28px, 3.6vw, 40px);
  color: var(--text-hi); font-weight: 700; letter-spacing: 0.06em; line-height: 1.5;
}
.cta-band h2 .grad { background: var(--gold-grad); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.cta-band p { margin-top: 18px; font-size: 15px; color: var(--text-mid); max-width: 560px; margin-left: auto; margin-right: auto; }
.cta-band .hero-actions { justify-content: center; }

/* ---------- 页脚 ---------- */
.footer {
  border-top: 1px solid var(--line); padding: 80px 0 40px; position: relative;
  background: linear-gradient(180deg, rgba(124, 179, 247, 0.07), rgba(79, 139, 232, 0.03));
}
.footer::before {
  content: ""; position: absolute; top: -1px; left: 50%; transform: translateX(-50%);
  width: 320px; height: 2px; background: linear-gradient(90deg, transparent, var(--gold-500), transparent);
}
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.3fr; gap: 48px; }
.footer .brand { margin-bottom: 22px; }
.footer-desc { font-size: 14px; color: var(--text-low); line-height: 2; max-width: 300px; }
.footer h5 {
  font-size: 13px; letter-spacing: 0.3em; color: var(--text-hi);
  font-weight: 700; margin-bottom: 24px;
}
.footer-links { display: flex; flex-direction: column; gap: 12px; }
.footer-links a { font-size: 14px; color: var(--text-mid); transition: all 0.3s; }
.footer-links a:hover { color: var(--gold-600); padding-left: 6px; }
.footer-contact li {
  display: flex; gap: 12px; font-size: 14px; color: var(--text-mid);
  margin-bottom: 16px; align-items: flex-start; line-height: 1.7;
}
.footer-contact svg { width: 16px; height: 16px; color: var(--gold-500); flex: none; margin-top: 4px; }
.footer-bottom {
  margin-top: 60px; padding-top: 28px;
  border-top: 1px solid var(--line);
  display: flex; justify-content: space-between; align-items: center;
  font-size: 12.5px; color: var(--text-low); letter-spacing: 0.08em;
  flex-wrap: wrap; gap: 12px;
}

/* ---------- 页面头部 (内页) ---------- */
.page-hero {
  position: relative; padding: 180px 0 90px;
  overflow: hidden;
}
.page-hero::before {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(800px 400px at 70% -10%, rgba(124, 179, 247, 0.22), transparent 60%),
    linear-gradient(180deg, rgba(124, 179, 247, 0.10), transparent);
  pointer-events: none;
}
.page-hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(34px, 5vw, 56px);
  font-weight: 700; color: var(--text-hi); letter-spacing: 0.06em; line-height: 1.3;
  margin-top: 22px;
}
.page-hero .crumb {
  display: flex; align-items: center; gap: 10px;
  font-size: 12.5px; letter-spacing: 0.24em; color: var(--text-low);
  margin-top: 20px;
}
.page-hero .crumb a { color: var(--gold-500); font-weight: 600; }
.page-hero .crumb span { color: var(--text-low); }

/* ---------- 子页区块 ---------- */
.sub-sec { padding: 0 0 120px; }

/* 服务列表（services） */
.svc-grp { margin-bottom: 90px; }
.svc-grp:last-child { margin-bottom: 0; }
.grp-head {
  display: flex; align-items: center; gap: 22px;
  margin-bottom: 36px;
}
.grp-badge {
  font-family: var(--font-serif); font-size: 13px; letter-spacing: 0.26em;
  color: #ffffff; font-weight: 700;
  background: var(--gold-grad); padding: 7px 18px; border-radius: 100px;
  box-shadow: 0 6px 18px rgba(79, 139, 232, 0.25);
}
.grp-title { font-family: var(--font-serif); font-size: 26px; color: var(--text-hi); font-weight: 700; letter-spacing: 0.06em; }
.grp-line { flex: 1; height: 1px; background: var(--line); }

/* 详情列表 */
.dtl-list { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.dtl-card { padding: 30px 30px; }
.dtl-card h4 {
  font-family: var(--font-serif); font-size: 18px; font-weight: 700;
  color: var(--text-hi); letter-spacing: 0.04em;
  display: flex; gap: 12px; align-items: baseline;
}
.dtl-card h4 .no { font-size: 13px; color: var(--gold-500); letter-spacing: 0.2em; min-width: 30px; font-weight: 600; }
.dtl-card p { margin-top: 12px; font-size: 14px; color: var(--text-mid); line-height: 1.9; }
.dtl-card .amt {
  margin-top: 14px; display: inline-flex; align-items: center; gap: 8px;
  font-size: 12.5px; letter-spacing: 0.06em; color: var(--gold-600);
  border: 1px solid rgba(79, 139, 232, 0.28); border-radius: 100px;
  padding: 5px 14px; background: rgba(124, 179, 247, 0.10);
}

/* 费用模式 */
.fee-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.fee-card { padding: 44px 36px; text-align: center; position: relative; }
.fee-card .big {
  font-family: var(--font-serif); font-size: 34px; font-weight: 700;
  color: var(--gold-500); letter-spacing: 0.05em; margin-bottom: 12px;
}
.fee-card h4 { font-family: var(--font-serif); font-size: 18px; color: var(--text-hi); font-weight: 700; letter-spacing: 0.06em; }
.fee-card p { margin-top: 12px; font-size: 13.5px; color: var(--text-mid); line-height: 1.85; }
.fee-card.hot { border-color: var(--line-strong); }
.fee-card.hot::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: var(--gold-grad);
}

/* 案例页 */
.case-filters { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 44px; }
.cf-btn {
  padding: 9px 22px; font-size: 13px; letter-spacing: 0.12em;
  color: var(--text-mid); border: 1px solid var(--line); border-radius: 100px;
  background: var(--paper); transition: all 0.3s;
  box-shadow: var(--shadow-soft);
}
.cf-btn:hover { color: var(--gold-600); border-color: var(--line-strong); }
.cf-btn.on { background: var(--gold-grad); color: #ffffff; border-color: transparent; font-weight: 600; box-shadow: 0 8px 22px rgba(79, 139, 232, 0.30); }

/* 联系页 */
.contact-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 56px; }
.ci { display: flex; gap: 18px; padding: 26px 0; border-bottom: 1px solid var(--line); align-items: flex-start; }
.ci:first-child { padding-top: 0; }
.ci-ico {
  width: 46px; height: 46px; flex: none;
  border: 1px solid var(--line-strong); border-radius: 12px;
  display: grid; place-items: center; color: var(--gold-500);
  background: linear-gradient(135deg, rgba(124, 179, 247, 0.22), rgba(79, 139, 232, 0.08));
}
.ci-ico svg { width: 20px; height: 20px; }
.ci h4 { font-family: var(--font-serif); font-size: 16px; color: var(--text-hi); font-weight: 700; letter-spacing: 0.06em; }
.ci p { margin-top: 6px; font-size: 15px; color: var(--text-mid); line-height: 1.7; }
.ci .hint { font-size: 12.5px; color: var(--text-low); margin-top: 2px; }

.form-panel { padding: 48px 44px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { margin-bottom: 20px; }
.field label {
  display: block; font-size: 12.5px; letter-spacing: 0.2em;
  color: var(--gold-600); margin-bottom: 10px; font-weight: 600;
}
.field input, .field textarea {
  width: 100%; background: #f7fbff;
  border: 1px solid var(--line); border-radius: 8px;
  color: var(--text-hi); font-family: inherit; font-size: 15px;
  padding: 14px 16px; transition: all 0.3s;
  outline: none;
}
.field input:focus, .field textarea:focus {
  border-color: var(--gold-500);
  background: #ffffff;
  box-shadow: 0 0 0 4px rgba(79, 139, 232, 0.12);
}
.field textarea { min-height: 120px; resize: vertical; }
.field ::placeholder { color: var(--text-low); }
.form-note { font-size: 12px; color: var(--text-low); margin-top: 14px; line-height: 1.8; }

/* ---------- 动效 ---------- */
.reveal {
  opacity: 0; transform: translateY(36px);
  transition: opacity 0.9s var(--ease-out), transform 0.9s var(--ease-out);
}
.reveal.in { opacity: 1; transform: translateY(0); }
.reveal.d1 { transition-delay: 0.08s; }
.reveal.d2 { transition-delay: 0.16s; }
.reveal.d3 { transition-delay: 0.24s; }
.reveal.d4 { transition-delay: 0.32s; }

/* ---------- 滚动条 ---------- */
::-webkit-scrollbar { width: 9px; }
::-webkit-scrollbar-track { background: var(--ink-950); }
::-webkit-scrollbar-thumb { background: #b9cdec; border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--gold-500); }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .svc-grid, .adv-grid, .case-grid { grid-template-columns: repeat(2, 1fr); }
  .flow-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
  .flow-arrow { display: none; }
  .ace-wrap { grid-template-columns: 1fr; gap: 40px; }
  .split { grid-template-columns: 1fr; gap: 48px; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .dtl-list { grid-template-columns: 1fr; }
  .nav-links {
    position: fixed; top: 0; right: 0; bottom: 0;
    width: min(360px, 84vw);
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(20px);
    flex-direction: column; align-items: flex-start;
    padding: 120px 48px 48px; gap: 30px;
    transform: translateX(100%);
    transition: transform 0.5s var(--ease-out);
    border-left: 1px solid var(--line);
    box-shadow: -12px 0 44px rgba(31, 85, 173, 0.10);
    z-index: 99;
  }
  .nav-links.open { transform: translateX(0); }
  .nav-links a { font-size: 17px; }
  .nav-toggle { display: flex; }
  .nav-cta { display: none; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 32px 0; }
  .stat:nth-child(3) { border-left: none; padding-left: 0; }
  .metrics { grid-template-columns: repeat(2, 1fr); gap: 36px 0; }
  .metric + .metric::before { display: none; }
  .cta-band { padding: 56px 32px; }
}

@media (max-width: 640px) {
  .container { padding: 0 20px; }
  .sec { padding: 84px 0; }
  .svc-grid, .adv-grid, .case-grid, .fee-grid { grid-template-columns: 1fr; }
  .flow-grid { grid-template-columns: 1fr; }
  .hero { padding: 130px 0 80px; }
  .hero-stats { margin-top: 60px; }
  .stat-label { letter-spacing: 0.14em; }
  .news-row { grid-template-columns: 1fr; gap: 8px; }
  .news-cat { justify-self: start; }
  .footer-grid { grid-template-columns: 1fr; gap: 40px; }
  .form-row { grid-template-columns: 1fr; }
  .page-hero { padding: 150px 0 60px; }
}