/* =============================================
   熊大叔工作室官网样式
   深空蓝黑 + 香槟金 · 高端大气风 · 响应式
   底色 --ink: #0a0e17 / 金 --gold: #d8b36a
   ============================================= */
:root {
  --ink: #0a0e17;
  --ink-2: #0e1421;
  --ink-3: #131a2b;
  --gold: #d8b36a;
  --gold-bright: #f0d49a;
  --gold-dim: rgba(216, 179, 106, 0.35);
  --text: #e9edf6;
  --text-dim: #97a1b5;
  --text-faint: #6b7488;
  --line: rgba(255, 255, 255, 0.08);
  --line-gold: rgba(216, 179, 106, 0.28);
  --radius: 4px;
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.45);
  --serif: Georgia, "Times New Roman", "Songti SC", serif;
  --sans: "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  color: var(--text);
  background: var(--ink);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* 全局噪点颗粒 */
body::after {
  content: "";
  position: fixed; inset: 0; z-index: 999; pointer-events: none;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)'/%3E%3C/svg%3E");
}

::selection { background: var(--gold); color: var(--ink); }

.container { max-width: 1160px; margin: 0 auto; padding: 0 24px; }

/* ---------- 滚动入场 ---------- */
.reveal {
  opacity: 0; transform: translateY(28px);
  transition: opacity 0.9s cubic-bezier(0.16, 1, 0.3, 1), transform 0.9s cubic-bezier(0.16, 1, 0.3, 1);
}
.reveal.in-view { opacity: 1; transform: none; }
.d1 { transition-delay: 0.1s; }
.d2 { transition-delay: 0.2s; }
.d3 { transition-delay: 0.3s; }
.d4 { transition-delay: 0.4s; }
.d5 { transition-delay: 0.5s; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* ---------- 导航栏 ---------- */
.navbar {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  background: rgba(10, 14, 23, 0.6);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color 0.35s, background 0.35s;
}
.navbar.scrolled {
  background: rgba(10, 14, 23, 0.92);
  border-bottom-color: var(--line);
}
.nav-wrap { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.brand-mark {
  width: 38px; height: 38px;
  display: block; object-fit: contain;
  border-radius: 8px;
}
.brand-name { font-size: 18px; font-weight: 600; color: var(--text); letter-spacing: 2px; }
.nav-menu { display: flex; align-items: center; gap: 30px; }
.nav-link {
  position: relative;
  text-decoration: none; color: var(--text-dim); font-size: 14px; letter-spacing: 1.5px;
  padding: 6px 0; transition: color 0.25s;
}
.nav-link::after {
  content: ""; position: absolute; left: 0; right: 100%; bottom: 0;
  height: 1px; background: var(--gold); transition: right 0.3s ease;
}
.nav-link:hover, .nav-link.active { color: var(--gold-bright); }
.nav-link:hover::after, .nav-link.active::after { right: 0; }
.nav-cta {
  background: transparent; color: var(--gold) !important; text-decoration: none;
  padding: 9px 22px; font-size: 13px; letter-spacing: 1.5px;
  border: 1px solid var(--line-gold);
  transition: 0.25s;
}
.nav-cta:hover { background: var(--gold); color: var(--ink) !important; border-color: var(--gold); }

/* 移动端汉堡 */
.nav-toggle {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: none; cursor: pointer; padding: 6px;
}
.nav-toggle span { width: 24px; height: 1.5px; background: var(--gold); transition: 0.3s; }
.nav-toggle.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex; align-items: center;
  padding: 140px 0 90px;
  overflow: hidden;
  background:
    radial-gradient(ellipse 70% 50% at 50% -10%, rgba(216, 179, 106, 0.14), transparent 65%),
    radial-gradient(ellipse 50% 40% at 85% 60%, rgba(43, 78, 158, 0.18), transparent 70%),
    var(--ink);
}
.hero-bg { position: absolute; inset: 0; pointer-events: none; }
/* 网格底纹 */
.hero-bg::before {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 88px 88px;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, #000 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, #000 30%, transparent 75%);
  opacity: 0.6;
}
/* 描边大字 */
.hero-ghost {
  position: absolute; left: 50%; top: 46%;
  transform: translate(-50%, -50%);
  font-family: var(--serif); font-size: clamp(90px, 17vw, 250px);
  font-weight: 700; letter-spacing: 0.04em; white-space: nowrap;
  color: transparent;
  -webkit-text-stroke: 1px rgba(216, 179, 106, 0.14);
  animation: ghostDrift 18s ease-in-out infinite alternate;
}
@keyframes ghostDrift {
  from { transform: translate(-52%, -50%); }
  to   { transform: translate(-48%, -53%); }
}
.hero-orb { position: absolute; border-radius: 50%; filter: blur(70px); }
.orb-a {
  width: 380px; height: 380px; left: -120px; top: 10%;
  background: radial-gradient(circle, rgba(216, 179, 106, 0.22), transparent 70%);
  animation: orbFloat 12s ease-in-out infinite alternate;
}
.orb-b {
  width: 460px; height: 460px; right: -160px; bottom: -80px;
  background: radial-gradient(circle, rgba(46, 88, 190, 0.25), transparent 70%);
  animation: orbFloat 15s ease-in-out infinite alternate-reverse;
}
@keyframes orbFloat {
  from { transform: translate(0, 0); }
  to   { transform: translate(40px, -50px); }
}
.hero-line {
  position: absolute; left: 50%; bottom: 0; width: 1px; height: 90px;
  background: linear-gradient(to bottom, transparent, var(--gold-dim));
}

.hero-inner { position: relative; text-align: center; }
.hero-eyebrow {
  font-family: var(--serif); font-size: 13px; letter-spacing: 0.42em;
  text-transform: uppercase; color: var(--gold);
  margin-bottom: 26px;
}
.hero-title {
  font-size: clamp(40px, 7.5vw, 84px);
  font-weight: 800; line-height: 1.15; letter-spacing: 6px;
  color: var(--text);
}
.hero-title .gold {
  background: linear-gradient(105deg, var(--gold) 10%, var(--gold-bright) 50%, var(--gold) 90%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero-sub {
  margin-top: 24px;
  font-size: clamp(15px, 2vw, 19px); color: var(--text-dim); letter-spacing: 2px;
}
.hero-badges { margin-top: 34px; display: flex; justify-content: center; gap: 12px; flex-wrap: wrap; }
.badge {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
  padding: 7px 20px; font-size: 13px; letter-spacing: 2px; color: var(--text-dim);
}
.hero-actions { margin-top: 44px; display: flex; justify-content: center; gap: 18px; flex-wrap: wrap; }

.hero-stats {
  margin-top: 76px;
  display: grid; grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
  max-width: 860px; margin-left: auto; margin-right: auto;
}
.stat { padding: 26px 8px 0; position: relative; }
.stat + .stat::before {
  content: ""; position: absolute; left: 0; top: 26px; bottom: 6px;
  width: 1px; background: var(--line);
}
.stat em { font-family: var(--serif); font-style: normal; font-size: clamp(30px, 4vw, 46px); color: var(--gold-bright); }
.stat i { font-family: var(--serif); font-style: normal; font-size: 20px; color: var(--gold); }
.stat-dot { font-size: 12px !important; vertical-align: middle; }
.stat span { display: block; margin-top: 4px; font-size: 13px; letter-spacing: 2px; color: var(--text-faint); }

.hero-scroll {
  position: absolute; left: 50%; bottom: 26px; transform: translateX(-50%);
  width: 22px; height: 36px; border: 1px solid var(--line-gold); border-radius: 12px;
}
.hero-scroll span {
  position: absolute; left: 50%; top: 7px; width: 2px; height: 7px;
  margin-left: -1px; background: var(--gold); border-radius: 2px;
  animation: scrollHint 1.8s ease-in-out infinite;
}
@keyframes scrollHint {
  0% { transform: translateY(0); opacity: 1; }
  70% { transform: translateY(12px); opacity: 0; }
  100% { transform: translateY(0); opacity: 0; }
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-block; text-decoration: none; cursor: pointer; border: none;
  font-family: var(--sans); font-size: 14px; letter-spacing: 2.5px;
  padding: 14px 36px; transition: 0.3s; position: relative; overflow: hidden;
}
.btn-lg { padding: 16px 44px; font-size: 15px; }
.btn-gold {
  background: linear-gradient(120deg, var(--gold), var(--gold-bright) 55%, var(--gold));
  color: var(--ink); font-weight: 600;
  box-shadow: 0 10px 34px rgba(216, 179, 106, 0.22);
}
.btn-gold:hover { transform: translateY(-2px); box-shadow: 0 16px 44px rgba(216, 179, 106, 0.34); }
.btn-ghost {
  background: transparent; color: var(--text);
  border: 1px solid rgba(255, 255, 255, 0.22);
}
.btn-ghost:hover { border-color: var(--gold); color: var(--gold-bright); transform: translateY(-2px); }
.btn-block { width: 100%; }
.btn:disabled { opacity: 0.55; cursor: not-allowed; transform: none; }

/* ---------- 通用区块 ---------- */
.section { padding: 120px 0; position: relative; }
.section-alt {
  background: var(--ink-2);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}
.sec-head { text-align: center; margin-bottom: 64px; }
.sec-eyebrow {
  font-family: var(--serif); font-size: 12px; letter-spacing: 0.5em;
  text-transform: uppercase; color: var(--gold); margin-bottom: 16px;
}
.section-title {
  font-size: clamp(28px, 4vw, 42px);
  font-weight: 800; letter-spacing: 5px; color: var(--text);
}
.section-sub { margin-top: 14px; color: var(--text-dim); letter-spacing: 1.5px; }

/* ---------- 核心优势 ---------- */
.adv { padding-top: 100px; }
.adv-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; align-items: stretch; }
.adv-card {
  position: relative;
  border: 1px solid var(--line);
  background: linear-gradient(165deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.01));
  padding: 44px 32px 36px;
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.4s;
}
.adv-card:hover { transform: translateY(-8px); border-color: var(--line-gold); }
.adv-hot {
  border-color: var(--line-gold);
  background:
    radial-gradient(ellipse 90% 60% at 50% 0%, rgba(216, 179, 106, 0.16), transparent 70%),
    linear-gradient(165deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.015));
  box-shadow: 0 24px 70px rgba(216, 179, 106, 0.1);
}
.adv-flag {
  position: absolute; top: 0; right: 26px;
  background: linear-gradient(120deg, var(--gold), var(--gold-bright));
  color: var(--ink); font-size: 12px; font-weight: 700; letter-spacing: 3px;
  padding: 5px 12px 6px;
}
.adv-icon {
  width: 58px; height: 58px;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--serif); font-size: 26px; color: var(--gold-bright);
  border: 1px solid var(--line-gold);
  background: rgba(216, 179, 106, 0.07);
  margin-bottom: 22px;
}
.adv-label {
  font-family: var(--serif); font-size: 12px; letter-spacing: 0.45em;
  text-transform: uppercase; color: var(--gold); margin-bottom: 10px;
}
.adv-card h3 { font-size: 21px; font-weight: 700; letter-spacing: 1.5px; color: var(--text); margin-bottom: 14px; }
.adv-desc { font-size: 14px; color: var(--text-dim); margin-bottom: 22px; }
.adv-points { list-style: none; border-top: 1px solid var(--line); padding-top: 18px; }
.adv-points li {
  position: relative; padding-left: 22px;
  font-size: 13.5px; color: var(--text-dim); margin-bottom: 10px;
}
.adv-points li::before {
  content: ""; position: absolute; left: 0; top: 9px;
  width: 10px; height: 1px; background: var(--gold);
}
.adv-note {
  margin-top: 34px;
  display: flex; align-items: center; justify-content: center; flex-wrap: wrap; gap: 14px 28px;
}
.adv-note > span {
  font-size: 13px; letter-spacing: 1.5px; color: var(--text-faint);
  position: relative; padding-left: 18px;
}
.adv-note > span::before {
  content: ""; position: absolute; left: 0; top: 50%;
  width: 6px; height: 6px; margin-top: -3px;
  border: 1px solid var(--gold); transform: rotate(45deg);
}
.adv-note .btn { padding: 12px 34px; font-size: 13.5px; }

/* ---------- 服务卡片 ---------- */
.card-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 20px; }
.card {
  position: relative;
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.012));
  border: 1px solid var(--line);
  padding: 36px 28px 30px;
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.4s, background 0.4s;
  overflow: hidden;
}
.card::before {
  content: ""; position: absolute; left: 0; top: 0; width: 0; height: 1px;
  background: linear-gradient(90deg, var(--gold), transparent);
  transition: width 0.5s ease;
}
.card:hover { transform: translateY(-8px); border-color: var(--line-gold); }
.card:hover::before { width: 100%; }
.card-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 26px; }
.card-num { font-family: var(--serif); font-size: 30px; color: rgba(216, 179, 106, 0.35); letter-spacing: 1px; }
.card-icon { font-size: 26px; filter: grayscale(0.2); }
.card h3 { font-size: 19px; font-weight: 600; letter-spacing: 2px; color: var(--text); margin-bottom: 12px; }
.card p { font-size: 14px; color: var(--text-dim); }
.card-tags { list-style: none; margin-top: 20px; display: flex; flex-wrap: wrap; gap: 8px; }
.card-tags li {
  font-size: 11.5px; letter-spacing: 1px; color: var(--gold);
  border: 1px solid var(--line-gold);
  padding: 3px 11px;
}

/* ---------- 案例卡片 ---------- */
.case-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(310px, 1fr)); gap: 22px; }
.case-card {
  background: var(--ink-3);
  border: 1px solid var(--line);
  overflow: hidden;
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), border-color 0.4s;
}
.case-card:hover { transform: translateY(-8px); border-color: var(--line-gold); }
.case-cover {
  height: 180px; position: relative; overflow: hidden;
  display: flex; align-items: flex-end; padding: 18px 22px;
}
.case-cover span {
  font-family: var(--serif); font-size: 54px; line-height: 1;
  color: rgba(255, 255, 255, 0.16);
  transition: color 0.4s, transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
}
.case-card:hover .case-cover span { color: rgba(216, 179, 106, 0.6); transform: translateY(-6px); }
.cover-a { background: linear-gradient(135deg, #16203a, #0d1119 70%), repeating-linear-gradient(45deg, transparent, transparent 18px, rgba(216,179,106,0.05) 18px, rgba(216,179,106,0.05) 36px); background-blend-mode: normal, normal; }
.cover-b { background: radial-gradient(circle at 80% 20%, rgba(216, 179, 106, 0.3), transparent 55%), linear-gradient(135deg, #1a1626, #0d1119 75%); }
.cover-c { background: linear-gradient(160deg, #101c33, #0d1119 70%), repeating-linear-gradient(-45deg, transparent, transparent 26px, rgba(255,255,255,0.04) 26px, rgba(255,255,255,0.04) 27px); }
.cover-d { background: radial-gradient(circle at 20% 80%, rgba(46, 88, 190, 0.4), transparent 55%), linear-gradient(135deg, #0f1524, #0d1119 70%); }
.cover-e { background: radial-gradient(circle at 70% 70%, rgba(216, 179, 106, 0.22), transparent 55%), linear-gradient(135deg, #151b2e, #0d1119 75%); }
.cover-f { background: repeating-linear-gradient(90deg, transparent, transparent 40px, rgba(216,179,106,0.06) 40px, rgba(216,179,106,0.06) 41px), linear-gradient(135deg, #12182a, #0d1119 80%); }
.case-cover::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(10, 14, 23, 0.55), transparent 55%);
}
.case-cover span { position: relative; z-index: 1; }
.case-body { padding: 24px 24px 26px; }
.case-meta { margin-bottom: 12px; }
.case-tag {
  font-size: 11px; letter-spacing: 2px; color: var(--gold);
  border: 1px solid var(--line-gold); padding: 2px 10px;
}
.case-body h3 { font-size: 17px; font-weight: 600; letter-spacing: 1px; color: var(--text); margin-bottom: 8px; }
.case-body p { font-size: 13.5px; color: var(--text-dim); margin-bottom: 16px; }
.case-points { list-style: none; border-top: 1px solid var(--line); padding-top: 14px; }
.case-points li {
  position: relative; padding-left: 20px;
  font-size: 13px; color: var(--text-dim); margin-bottom: 8px;
}
.case-points li::before {
  content: ""; position: absolute; left: 0; top: 8.5px;
  width: 10px; height: 1px; background: var(--gold);
}
.case-more { font-size: 12.5px; letter-spacing: 2px; color: var(--gold); }
.case-more::after { content: " →"; }
.case-more.disabled { color: var(--text-faint); cursor: not-allowed; }
.case-more.disabled::after { content: ""; }

/* ---------- 流程步骤 ---------- */
.steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 16px; position: relative; }
.steps::before {
  content: ""; position: absolute; left: 4%; right: 4%; top: 33px; height: 1px;
  background: linear-gradient(90deg, transparent, var(--line-gold), var(--line-gold), transparent);
}
.step {
  text-align: center; padding: 0 8px; position: relative;
}
.step-num {
  width: 66px; height: 66px; margin: 0 auto 20px;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--serif); font-size: 20px; color: var(--gold-bright);
  background: var(--ink);
  border: 1px solid var(--line-gold);
  border-radius: 50%;
  position: relative; z-index: 1;
  transition: 0.35s;
}
.step:hover .step-num {
  background: var(--gold); color: var(--ink);
  box-shadow: 0 0 0 6px rgba(216, 179, 106, 0.12);
}
.step h3 { font-size: 16px; letter-spacing: 2px; color: var(--text); margin-bottom: 8px; }
.step p { font-size: 13px; color: var(--text-dim); }

/* ---------- 关于 ---------- */
.about-wrap { max-width: 960px; margin: 0 auto; text-align: center; }
.about-quote {
  font-family: var(--serif);
  font-size: clamp(24px, 3.6vw, 38px); line-height: 1.6;
  color: var(--gold-bright); letter-spacing: 3px;
  padding-bottom: 34px; margin-bottom: 40px;
  border-bottom: 1px solid var(--line-gold);
  position: relative;
}
.about-quote::before {
  content: "“"; position: absolute; left: -34px; top: -26px;
  font-size: 90px; color: rgba(216, 179, 106, 0.2); font-family: var(--serif);
}
.about-grid {
  display: grid; grid-template-columns: 340px 1fr; gap: 34px;
  text-align: left; align-items: stretch;
}
.dev-card {
  border: 1px solid var(--line-gold);
  background:
    radial-gradient(ellipse 100% 70% at 50% 0%, rgba(216, 179, 106, 0.12), transparent 65%),
    rgba(255, 255, 255, 0.025);
  padding: 36px 30px; text-align: center;
}
.dev-avatar {
  width: 96px; height: 96px; margin: 0 auto 18px;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--serif); font-size: 32px; color: var(--gold-bright);
  border: 1px solid var(--line-gold); border-radius: 50%;
  background: linear-gradient(150deg, rgba(216, 179, 106, 0.2), rgba(216, 179, 106, 0.03));
}
.dev-name { font-size: 20px; font-weight: 700; letter-spacing: 2px; color: var(--text); }
.dev-name span {
  display: block; margin-top: 4px;
  font-size: 12.5px; font-weight: 400; letter-spacing: 2px; color: var(--gold);
}
.dev-meta {
  display: flex; justify-content: center; gap: 18px;
  margin: 22px 0; padding: 18px 0;
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
  flex-wrap: wrap;
}
.dev-meta span { font-size: 12px; color: var(--text-faint); letter-spacing: 1px; }
.dev-meta em {
  display: block; font-family: var(--serif); font-style: normal;
  font-size: 22px; color: var(--gold-bright); margin-bottom: 2px;
}
.dev-bio { font-size: 13.5px; color: var(--text-dim); text-align: left; }
.about-text { display: flex; flex-direction: column; justify-content: center; }
.about-text p { color: var(--text-dim); margin-bottom: 14px; font-size: 15px; }
.tech-cloud { list-style: none; margin-top: 20px; display: flex; flex-wrap: wrap; gap: 10px; }
.tech-cloud li {
  border: 1px solid var(--line); background: rgba(255, 255, 255, 0.03);
  padding: 7px 18px; font-size: 13px; letter-spacing: 1.5px; color: var(--text-dim);
  transition: 0.3s;
}
.tech-cloud li:hover { border-color: var(--line-gold); color: var(--gold-bright); }

/* ---------- 客户评价 ---------- */
.testi-grid {
  max-width: 760px; margin: 56px auto 0;
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px;
  text-align: left;
}
.testi {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.025);
  padding: 28px 26px 24px;
  position: relative;
  transition: border-color 0.3s;
}
.testi:hover { border-color: var(--line-gold); }
.testi::before {
  content: "“"; position: absolute; top: 10px; right: 18px;
  font-family: var(--serif); font-size: 54px; color: rgba(216, 179, 106, 0.25);
}
.testi blockquote { font-size: 13.5px; color: var(--text-dim); line-height: 1.85; }
.testi figcaption {
  margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--line);
  font-size: 13px; color: var(--text); letter-spacing: 1px;
}
.testi figcaption span {
  display: block; margin-top: 3px;
  font-size: 11.5px; color: var(--text-faint); letter-spacing: 1.5px;
}

/* ---------- FAQ ---------- */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.02);
  margin-bottom: 12px;
  transition: border-color 0.3s;
}
.faq-item[open] { border-color: var(--line-gold); }
.faq-item summary {
  list-style: none; cursor: pointer;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 20px 24px;
  font-size: 15.5px; font-weight: 600; letter-spacing: 1px; color: var(--text);
  transition: color 0.25s;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:hover { color: var(--gold-bright); }
.faq-icon {
  flex: none; position: relative; width: 16px; height: 16px;
}
.faq-icon::before, .faq-icon::after {
  content: ""; position: absolute; left: 50%; top: 50%;
  background: var(--gold); transition: transform 0.3s;
}
.faq-icon::before { width: 14px; height: 1.5px; margin: -0.75px 0 0 -7px; }
.faq-icon::after { width: 1.5px; height: 14px; margin: -7px 0 0 -0.75px; }
.faq-item[open] .faq-icon::after { transform: scaleY(0); }
.faq-a {
  padding: 0 24px 22px;
  font-size: 14px; color: var(--text-dim); line-height: 1.9;
  border-top: 1px dashed var(--line);
  padding-top: 16px; margin: 0 24px 0;
}

/* ---------- 联系 + 表单 ---------- */
.contact-wrap {
  display: grid; grid-template-columns: 1fr 1.5fr; gap: 44px; align-items: start;
}
.contact-info {
  border: 1px solid var(--line);
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.01));
  padding: 40px 34px;
}
.qr-box { text-align: center; margin-bottom: 28px; }
.qr-img {
  display: block; width: 188px; height: 188px;
  margin: 0 auto;
  padding: 8px; background: #fff;
  border: 1px solid var(--line-gold);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.35);
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1), box-shadow 0.35s;
}
.qr-img:hover {
  transform: scale(1.04);
  box-shadow: 0 18px 50px rgba(216, 179, 106, 0.22);
}
.qr-caption {
  margin-top: 14px;
  font-size: 13px; letter-spacing: 2px; color: var(--text-dim);
}
.contact-lines p {
  display: flex; gap: 16px; align-items: baseline;
  margin-bottom: 14px; font-size: 14px; color: var(--text-dim);
}
.contact-lines a {
  color: var(--text-dim); text-decoration: none;
  transition: color 0.25s;
  word-break: break-all;
}
.contact-lines a:hover { color: var(--gold-bright); }
.contact-lines b {
  flex: none; width: 40px; font-weight: 500;
  font-size: 12px; letter-spacing: 2px; color: var(--gold);
}

.inquiry-form {
  border: 1px solid var(--line);
  background: var(--ink-3);
  padding: 38px 36px;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-group { margin-bottom: 18px; }
.form-group label {
  display: block; font-size: 12.5px; letter-spacing: 2px;
  color: var(--text-dim); margin-bottom: 8px;
}
.form-group input, .form-group select, .form-group textarea {
  width: 100%; padding: 12px 14px; font-size: 14px; font-family: inherit;
  color: var(--text);
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--line); border-radius: 0; outline: none;
  transition: border-color 0.25s, background 0.25s, box-shadow 0.25s;
}
.form-group select option { background: var(--ink-3); color: var(--text); }
.form-group input::placeholder, .form-group textarea::placeholder { color: var(--text-faint); }
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  border-color: var(--gold); background: rgba(216, 179, 106, 0.05);
  box-shadow: 0 0 0 3px rgba(216, 179, 106, 0.1);
}
.form-group textarea { resize: vertical; min-height: 110px; }
.form-group input.invalid, .form-group textarea.invalid { border-color: #e06a6a; }
.form-tip { margin-top: 16px; font-size: 12px; color: var(--text-faint); text-align: center; letter-spacing: 0.5px; }

/* ---------- 页脚 ---------- */
.footer {
  background: #070a11;
  border-top: 1px solid var(--line);
  padding: 54px 0 40px; font-size: 14px; color: var(--text-faint);
}
.footer-top { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 20px; }
.footer-nav { display: flex; gap: 26px; flex-wrap: wrap; }
.footer-nav a {
  color: var(--text-dim); text-decoration: none; font-size: 13px; letter-spacing: 2px;
  transition: color 0.25s;
}
.footer-nav a:hover { color: var(--gold-bright); }
.footer-line { height: 1px; background: var(--line); margin: 30px 0 24px; }
.footer-bottom { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px; }
.footer-copy { font-size: 12px; opacity: 0.65; }
.footer-icp { font-size: 12px; opacity: 0.65; }
.footer-icp a { color: inherit; text-decoration: none; transition: color 0.25s; }
.footer-icp a:hover { color: var(--gold); }

/* ---------- Toast ---------- */
.toast {
  position: fixed; left: 50%; bottom: 44px; transform: translateX(-50%) translateY(20px);
  background: rgba(20, 26, 40, 0.96); color: var(--text);
  border: 1px solid var(--line-gold);
  padding: 13px 28px; font-size: 14px; letter-spacing: 1px;
  opacity: 0; pointer-events: none; transition: 0.35s; z-index: 200;
  max-width: 86vw; text-align: center;
  box-shadow: var(--shadow);
}
.toast.show { opacity: 1; transform: translateX(-50%) translateY(0); }
.toast.success { border-color: rgba(120, 200, 150, 0.5); color: #a8e6c1; }
.toast.error { border-color: rgba(224, 106, 106, 0.55); color: #f0a8a8; }

/* ---------- 响应式 ---------- */
@media (max-width: 960px) {
  .steps { grid-template-columns: repeat(3, 1fr); row-gap: 40px; }
  .steps::before { display: none; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); row-gap: 10px; }
  .stat:nth-child(3)::before { display: none; }
  .adv-grid { grid-template-columns: 1fr; max-width: 560px; margin: 0 auto; }
  .adv-hot { order: -1; }
  .about-grid { grid-template-columns: 1fr; max-width: 560px; margin-left: auto; margin-right: auto; }
  .testi-grid { grid-template-columns: 1fr; max-width: 560px; }
}
@media (max-width: 860px) {
  .contact-wrap { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; gap: 0; }
}
@media (max-width: 768px) {
  .nav-toggle { display: flex; }
  .nav-menu {
    position: fixed; top: 72px; left: 0; right: 0;
    background: rgba(10, 14, 23, 0.98);
    flex-direction: column; gap: 0;
    border-bottom: 1px solid var(--line);
    max-height: 0; overflow: hidden; transition: max-height 0.35s;
  }
  .nav-menu.open { max-height: 460px; }
  .nav-link { padding: 15px 26px; width: 100%; border-bottom: 1px solid var(--line); text-align: center; }
  .nav-link::after { display: none; }
  .nav-cta { margin: 16px 26px 20px; width: calc(100% - 52px); text-align: center; }
  .hero { padding: 120px 0 80px; min-height: auto; }
  .hero-title { letter-spacing: 3px; }
  .section { padding: 76px 0; }
  .sec-head { margin-bottom: 44px; }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .inquiry-form { padding: 28px 22px; }
  .contact-info { padding: 30px 24px; }
  .about-quote::before { left: -6px; top: -40px; }
}
@media (max-width: 480px) {
  .steps { grid-template-columns: 1fr; }
  .case-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; }
}