/* 自托管字体见 fonts-self-hosted.css（由 index.html 先于本文件加载） */

:root {
  --ff-display: 'Playfair Display', 'Noto Serif SC', Georgia, serif;
  --ff-body: 'DM Sans', 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
  --ff-mono: 'DM Mono', 'SF Mono', 'Courier New', monospace;

  /* ─ Color tokens (aligned with landing_white palette) ─ */
  --ink: #1A1814;
  --paper: #FAFAF8;
  --cream: #ffffff;
  --bg3: #F4F2EE;
  --bg4: #EDEBE5;
  --gold: #B8882A;
  --gold-light: #D4A843;
  --gold-dim: rgba(184,136,42,0.12);
  --terracotta: #B8882A;
  --terracotta-dim: rgba(184,136,42,0.12);
  --sage: #1A9E6A;
  --blue: #2878D6;
  --muted: #8A857C;
  --text2: #4A4540;
  --border: rgba(184,136,42,0.15);
  --border-light: rgba(184,136,42,0.08);
  --border-accent: rgba(184,136,42,0.35);

  /* ─ Layout ─ */
  --max-w: 1420px;
  --nav-h: 68px;
  --r: 3px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --section-py: clamp(4.5rem, 8vw, 6.5rem);

  /* ─ Surfaces (layered depth) ─ */
  --surface-0: #ffffff;
  --surface-1: #FAFAF8;
  --surface-2: #F4F2EE;
  --surface-3: #EDEBE5;
  --gold-deep: #8A6010;
  --gold-glow: rgba(184,136,42,0.14);

  /* ─ Shadows (elevation scale) ─ */
  --shadow-sm: 0 1px 4px rgba(30,20,5,0.06);
  --shadow-md: 0 4px 20px rgba(30,20,5,0.08);
  --shadow-lg: 0 12px 48px rgba(30,20,5,0.1);
  --shadow-xl: 0 24px 64px rgba(26,24,20,0.11);
  --shadow-hero: 0 32px 80px rgba(26,24,20,0.13);
  --glow-gold: 0 4px 20px rgba(184,136,42,0.32);

  /* ─ Footer (dark deck, extends CTA/trust rhythm) ─ */
  --footer-bg-top: #1A1814;
  --footer-bg-bottom: #0c0b0a;
  --footer-text-strong: #FAFAF8;
  --footer-text: rgba(250,250,248,0.82);
  --footer-text-muted: rgba(250,250,248,0.68);
  --footer-border: rgba(184,136,42,0.22);
  --footer-border-strong: rgba(184,136,42,0.32);

  /* ─ Typography（B2B / 40+ 友好，中文正文优先可读）── */
  --text-2xs: 0.8125rem;  /* 13px — 标签/元信息下限 */
  --text-sm: 0.875rem;    /* 14px — 次要正文 */
  --text-sm-plus: 0.9375rem; /* 15px — 卡片描述、FAQ 答案 */
  --text-base: 1rem;      /* 16px — 基准正文 */
  --text-md: 1.0625rem;   /* 17px — 区块引导文 */
  --text-lg: 1.125rem;    /* 18px — Hero 副文案 */
  --leading-tight: 1.45;
  --leading-normal: 1.72;
  --leading-relaxed: 1.82;
  --tracking-label: 0.1em;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--ff-body);
  background: var(--surface-1);
  color: var(--ink);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* ════════════════════════════════════════
   STICKY CONTACT RAIL — always visible
   ════════════════════════════════════════ */
.contact-rail {
  position: fixed;
  right: 0;
  top: 50%;
  transform: translateY(-50%);
  z-index: 300;
  display: flex;
  flex-direction: column;
  gap: 0;
  filter: drop-shadow(-4px 0 18px rgba(0, 0, 0, 0.12));
}
.contact-rail-contact {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.contact-rail-btn {
  display: flex;
  align-items: center;
  gap: 0;
  background: var(--ink);
  color: var(--paper);
  text-decoration: none;
  font-size: var(--text-2xs);
  font-weight: 500;
  letter-spacing: 0.04em;
  padding: 0.75rem 0.6rem;
  writing-mode: vertical-rl;
  text-orientation: mixed;
  transition: background 0.2s, padding 0.2s, filter 0.2s;
  border-left: 2px solid transparent;
  position: relative;
  overflow: hidden;
}
.contact-rail-contact .contact-rail-btn:first-child { border-radius: var(--r) 0 0 0; }
.contact-rail-contact .contact-rail-btn:last-child { border-radius: 0; }
.contact-rail-btn.wechat { background: var(--sage); }
.contact-rail-btn.phone { background: var(--gold); }
.contact-rail-btn.email { background: var(--ink); color: var(--paper); }
.contact-rail-btn:hover { filter: brightness(1.12); padding-right: 0.9rem; }
.contact-rail-icon {
  font-size: 1rem;
  display: block;
  writing-mode: horizontal-tb;
  margin-bottom: 6px;
}

/* 分隔线：联系区 ↔ 滚动区 */
.contact-rail-sep {
  height: 1px;
  margin: 3px 0;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.16) 30%, rgba(255, 255, 255, 0.16) 70%, transparent);
  flex-shrink: 0;
}

/* 到顶 / 到底 — 与联系栏同宽，纯箭头 */
.contact-rail-scroll {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.contact-rail-scroll-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  min-width: 2.35rem;
  min-height: 2.15rem;
  padding: 0.45rem 0.6rem;
  border: none;
  background: #252118;
  color: rgba(250, 250, 248, 0.68);
  cursor: pointer;
  transition: background 0.2s, color 0.2s, padding 0.2s, border-color 0.2s;
  border-left: 2px solid rgba(184, 136, 42, 0.22);
}
.contact-rail-scroll-btn:first-child { border-radius: 0; }
.contact-rail-scroll-btn:last-child {
  border-radius: 0 0 0 var(--r);
  border-left-color: rgba(184, 136, 42, 0.35);
}
.contact-rail-scroll-btn:hover:not(.is-dim) {
  background: #302a22;
  color: var(--gold-light);
  border-left-color: var(--gold-light);
  padding-right: 0.78rem;
}
.contact-rail-scroll-btn.is-dim {
  opacity: 0.28;
  cursor: default;
  pointer-events: none;
}
.contact-rail-scroll-btn svg {
  display: block;
  flex-shrink: 0;
}

/* ════════════════════════════════════════
   FLOATING CONTACT BAR (mobile bottom)
   ════════════════════════════════════════ */
.contact-float-bar {
  display: none;
  position: fixed;
  bottom: 0; left: 0; right: 0;
  z-index: 300;
  background: var(--ink);
  padding: 0.75rem 1rem;
  gap: 0.5rem;
}
.contact-float-bar a {
  flex: 1;
  text-align: center;
  padding: 0.7rem 0.5rem;
  border-radius: var(--r);
  font-size: var(--text-sm);
  font-weight: 500;
  text-decoration: none;
  letter-spacing: 0.03em;
}
.cfb-wechat { background: var(--sage); color: white; }
.cfb-phone  { background: var(--gold); color: white; }
.cfb-email  { background: var(--ink); color: var(--paper); }

/* ════════════════════════════════════════
   NAV
   ════════════════════════════════════════ */
#mainNav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 220;
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: 0 4rem;
  height: var(--nav-h);
  background: rgba(255,255,255,0.94);
  backdrop-filter: blur(20px) saturate(1.6);
  -webkit-backdrop-filter: blur(20px) saturate(1.6);
  border-bottom: 1px solid rgba(184,136,42,0.12);
  box-shadow: 0 1px 0 rgba(0,0,0,0.04);
  transition: box-shadow 0.3s, background 0.3s;
}
#mainNav.scrolled {
  background: rgba(255,255,255,0.98);
  box-shadow: 0 1px 12px rgba(0,0,0,0.08);
}
.nav-logo {
  display: inline-flex; align-items: center; align-self: stretch;
  text-decoration: none; min-height: 0; flex-shrink: 0;
}
.nav-logo-img {
  display: block; width: auto; height: auto;
  max-height: calc(var(--nav-h) - 16px);
  max-width: min(260px, 46vw);
  object-fit: contain;
}
.nav-links { display: flex; gap: 2rem; list-style: none; align-items: center; }
.nav-links a {
  text-decoration: none; color: var(--muted);
  font-size: var(--text-sm); font-weight: 500; letter-spacing: 0.02em;
  transition: color 0.2s; white-space: nowrap;
}
.nav-links a:hover { color: var(--gold); }
.nav-cta {
  background: var(--gold) !important; color: #fff !important;
  padding: 0.55rem 1.35rem !important; border-radius: var(--r);
  font-weight: 700 !important; letter-spacing: 0.02em !important;
  transition: background 0.2s, transform 0.15s !important;
  box-shadow: 0 2px 8px rgba(184,136,42,0.3) !important;
}
.nav-cta:hover { background: #9A7020 !important; color: #fff !important; transform: translateY(-1px) !important; }

/* progress bar */
.nav-progress {
  position: absolute; bottom: -1px; left: 0;
  height: 2px; width: 0%;
  background: linear-gradient(90deg, var(--gold), var(--gold-light));
  transition: width 0.1s linear;
}

.nav-hamburger {
  display: none; flex-direction: column; gap: 5px;
  background: none; border: none; cursor: pointer; padding: 4px;
}
.nav-hamburger span {
  display: block; width: 24px; height: 2px;
  background: var(--ink); border-radius: 1px;
  transition: transform 0.3s, opacity 0.3s;
}
.nav-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.nav-drawer {
  display: none; position: fixed; top: var(--nav-h); left: 0; right: 0; bottom: 0;
  background: var(--cream); z-index: 210; flex-direction: column;
  overflow-y: auto; padding: 2.5rem 2rem; gap: 0;
  transform: translateX(100%); transition: transform 0.35s cubic-bezier(.4,0,.2,1);
}
.nav-drawer.open { transform: translateX(0); }
.nav-drawer a {
  text-decoration: none; color: var(--ink);
  font-size: 1.35rem; font-family: var(--ff-display);
  font-weight: 700; padding: 1rem 0; border-bottom: 1px solid var(--border);
  transition: color 0.2s, padding-left 0.2s;
}
.nav-drawer a:hover { color: var(--gold); padding-left: 0.5rem; }
.nav-drawer .drawer-cta {
  margin-top: 2rem; background: var(--gold); color: #fff !important;
  text-align: center; border-radius: var(--r); padding: 1rem !important;
  border-bottom: none !important; font-size: 1rem !important;
}
/* ────────────── DRAWER CONTACT INFO ────────────── */
.drawer-contact-block {
  margin-top: 2.5rem;
  display: flex; flex-direction: column; gap: 0.75rem;
}
.drawer-contact-item {
  display: flex; align-items: center; gap: 0.75rem;
  font-size: var(--text-sm-plus); color: var(--muted);
}
.drawer-contact-item a { color: var(--ink); font-size: var(--text-sm-plus); text-decoration: none; border-bottom: none; padding: 0 !important; font-family: var(--ff-body); font-weight: 500; }

/* ════════════════════════════════════════
   SECTION BASE
   ════════════════════════════════════════ */
section {
  padding: var(--section-py) clamp(1.5rem, 4vw, 4rem);
  position: relative;
}
.section-inner {
  max-width: var(--max-w);
  margin: 0 auto;
}
.section-surface { background: var(--surface-0); }
.section-muted { background: var(--surface-1); }
.section-warm { background: var(--surface-2); }
.section-tag {
  display: inline-block;
  font-size: var(--text-2xs); letter-spacing: var(--tracking-label); text-transform: uppercase;
  color: var(--gold); font-weight: 700; margin-bottom: 1rem;
  background: rgba(184,136,42,0.1);
  padding: 5px 14px; border-radius: 2px;
  border: 1px solid rgba(184,136,42,0.15);
}
.section-tag::before { display: none; }
.section-title {
  font-family: var(--ff-display);
  font-size: clamp(2rem, 3.8vw, 3.2rem);
  font-weight: 700; line-height: 1.14;
  letter-spacing: -0.02em; margin-bottom: 1.25rem;
  color: var(--ink);
  max-width: 720px;
}
.section-title .accent { color: var(--gold); }
.section-body {
  font-size: var(--text-md); color: var(--text2);
  max-width: 580px; line-height: var(--leading-relaxed);
  margin-bottom: 3rem;
}
.section-body strong { color: var(--ink); font-weight: 600; }

/* ════════════════════════════════════════
   HERO
   ════════════════════════════════════════ */
#hero.hero {
  min-height: 100vh;
  padding: 0;
  padding-top: var(--nav-h);
  padding-bottom: 2rem;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  background: var(--cream);
}

.hero-bg {
  position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 70% 55% at 65% 40%, rgba(184,136,42,0.07) 0%, transparent 65%),
    radial-gradient(ellipse 40% 30% at 90% 15%, rgba(40,120,214,0.04) 0%, transparent 55%),
    var(--cream);
}

.hero-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(184,136,42,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(184,136,42,0.06) 1px, transparent 1px);
  background-size: 72px 72px;
  animation: gridDrift 24s linear infinite;
  mask-image: radial-gradient(ellipse 80% 80% at 60% 50%, black 20%, transparent 80%);
  pointer-events: none;
}
@keyframes gridDrift { to { background-position: 72px 72px; } }

.hero-orb {
  position: absolute; border-radius: 50%;
  filter: blur(70px); pointer-events: none;
}
.orb1 { width: 500px; height: 500px; right: -60px; top: -80px; background: rgba(184,136,42,0.07); }
.orb2 { width: 350px; height: 350px; left: -60px; bottom: 12%; background: rgba(40,120,214,0.04); }

.hero-inner {
  position: relative; z-index: 2;
  max-width: 1420px; margin: 0 auto;
  padding: 5rem 4rem;
  width: 100%;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}

.hero-left { position: relative; z-index: 1; }

.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  border: 1px solid var(--border-accent);
  padding: 7px 18px; border-radius: 50px;
  font-size: var(--text-sm); color: var(--gold);
  letter-spacing: 0.06em; margin-bottom: 2rem;
  background: rgba(184,136,42,0.08);
  animation: fadeUp 0.8s ease forwards;
  font-weight: 600;
}
.hero-badge::before {
  content: ''; width: 6px; height: 6px;
  border-radius: 50%; background: var(--sage);
  animation: pulseDot 2s infinite;
}
@keyframes pulseDot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.8); }
}

.hero-title {
  font-family: var(--ff-display);
  font-size: clamp(2.6rem, 4.8vw, 4.4rem);
  line-height: 1.06;
  margin-bottom: 1.75rem;
  color: var(--ink);
  font-weight: 700;
  animation: fadeUp 0.8s 0.15s ease both;
}
.hero-title .line2 { color: var(--gold); }
.hero-title .line3 {
  display: inline-block;
  background: linear-gradient(135deg, var(--gold), var(--gold-light), #8A6010);
  -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-desc {
  color: var(--text2); font-size: var(--text-lg);
  max-width: 520px; margin-bottom: 3rem; line-height: var(--leading-relaxed);
  animation: fadeUp 0.8s 0.3s ease both;
}
.hero-desc strong { color: var(--ink); font-weight: 600; }

.hero-actions {
  display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 3.5rem;
  animation: fadeUp 0.8s 0.45s ease both;
}

.btn-primary {
  background: var(--gold); color: #fff;
  padding: 0.95rem 2.1rem; border-radius: var(--r);
  font-family: var(--ff-body); font-size: var(--text-base); font-weight: 700;
  text-decoration: none; letter-spacing: 0.02em;
  transition: background 0.2s, transform 0.2s, box-shadow 0.2s;
  display: inline-flex; align-items: center; gap: 8px;
  white-space: nowrap;
  box-shadow: var(--glow-gold);
}
.btn-primary:hover {
  background: #9A7020; transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(184,136,42,0.35);
}
.btn-primary.gold-btn {
  background: var(--gold); color: #fff;
}
.btn-primary.gold-btn:hover {
  background: var(--gold-light); color: var(--ink);
  box-shadow: 0 8px 28px rgba(184,136,42,0.35);
}

.btn-secondary {
  border: 1.5px solid var(--border-accent); color: var(--gold);
  font-size: var(--text-base); padding: 0.95rem 2.1rem; border-radius: var(--r);
  text-decoration: none; display: inline-flex; align-items: center; gap: 8px;
  transition: all 0.2s; background: transparent; white-space: nowrap;
  font-weight: 600;
}
.btn-secondary:hover { border-color: var(--gold); background: rgba(184,136,42,0.08); }

.btn-ghost {
  color: var(--ink); font-size: var(--text-base); font-weight: 400;
  text-decoration: none; display: flex; align-items: center; gap: 0.5rem;
  border-bottom: 1px solid var(--border); padding-bottom: 2px;
  transition: border-color 0.2s, color 0.2s; white-space: nowrap;
}
.btn-ghost:hover { color: var(--gold); border-color: var(--gold); }

.hero-stats {
  display: flex; gap: 2.5rem; flex-wrap: wrap;
  animation: fadeUp 0.8s 0.6s ease both;
}
.stat-item { text-align: left; }
.stat-num {
  font-family: var(--ff-display);
  font-size: 2.1rem; font-weight: 700;
  color: var(--gold); line-height: 1;
  display: block;
}
.stat-label { color: var(--muted); font-size: var(--text-sm); margin-top: 5px; line-height: var(--leading-tight); }

@keyframes fadeUp {
  from { opacity: 0; transform: translateY(28px); }
  to { opacity: 1; transform: none; }
}
@keyframes fadeIn {
  from { opacity: 0; transform: translateX(30px); }
  to { opacity: 1; transform: none; }
}

/* Hero visual — browser mockup */
#hero .hero-visual {
  animation: fadeIn 1s 0.5s ease both;
  position: relative;
}

.mockup-browser {
  background: var(--cream);
  border: 1px solid rgba(0,0,0,0.1);
  border-radius: var(--radius-lg); overflow: hidden;
  box-shadow: var(--shadow-hero), 0 0 0 1px rgba(184,136,42,0.12);
}
.browser-bar {
  height: 42px; background: var(--bg3);
  display: flex; align-items: center; gap: 8px; padding: 0 16px;
  border-bottom: 1px solid rgba(0,0,0,0.07);
}
.browser-dot { width: 11px; height: 11px; border-radius: 50%; }
.browser-url {
  flex: 1; margin: 0 16px;
  background: var(--cream); border-radius: 4px;
  height: 22px;
  display: flex; align-items: center; padding: 0 12px;
  font-size: var(--text-2xs); color: var(--muted);
  border: 1px solid rgba(0,0,0,0.08);
}
.browser-content {
  padding: 22px; aspect-ratio: 16/10;
  position: relative; overflow: hidden;
  background: var(--paper);
}
.bc-header {
  background: linear-gradient(135deg, var(--cream), var(--bg3));
  border-radius: 6px; height: 44px; margin-bottom: 14px;
  display: flex; align-items: center; padding: 0 16px; gap: 12px;
  border: 1px solid rgba(0,0,0,0.06);
  box-shadow: var(--shadow-sm);
}
.bc-logo-ph { width: 72px; height: 10px; background: var(--gold); border-radius: 2px; opacity: 0.7; }
.bc-nav-items { display: flex; gap: 14px; margin-left: auto; }
.bc-nav-item { width: 36px; height: 7px; background: var(--muted); border-radius: 2px; opacity: 0.3; }
.bc-hero-ph {
  background: linear-gradient(135deg, rgba(184,136,42,0.08), rgba(40,120,214,0.04));
  border-radius: 6px; padding: 18px; margin-bottom: 10px;
  border: 1px solid rgba(184,136,42,0.1);
}
.bc-h1-ph { height: 16px; background: var(--ink); border-radius: 2px; width: 66%; margin-bottom: 9px; opacity: 0.5; }
.bc-h2-ph { height: 11px; background: var(--text2); border-radius: 2px; width: 46%; margin-bottom: 14px; opacity: 0.3; }
.bc-cta-ph { height: 28px; width: 110px; background: var(--gold); border-radius: 3px; opacity: 0.85; }
.bc-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 7px; }
.bc-card-ph {
  height: 52px; border-radius: 4px;
  background: var(--cream); border: 1px solid rgba(0,0,0,0.08);
  position: relative; overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.bc-card-ph::after {
  content: ''; position: absolute;
  top: 10px; left: 10px; right: 10px;
  height: 7px; background: var(--muted); border-radius: 2px; opacity: 0.2;
}

.floating-tag {
  position: absolute;
  background: var(--cream);
  border: 1px solid var(--border-accent);
  border-radius: 8px; padding: 9px 15px;
  font-size: var(--text-sm); white-space: nowrap;
  animation: floatTag 4s ease-in-out infinite;
  box-shadow: var(--shadow-md);
  font-weight: 600;
  color: var(--ink);
}
.ft1 { top: -20px; right: -18px; color: var(--sage); animation-delay: 0s; }
.ft2 { bottom: 18px; left: -28px; color: var(--gold); animation-delay: 2s; }
.ft3 { bottom: 76px; right: -18px; color: var(--blue); animation-delay: 1s; }
@keyframes floatTag {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

/* ════════════════════════════════════════
   MARQUEE
   ════════════════════════════════════════ */
.marquee-wrap {
  overflow: hidden;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--paper);
  padding: 0.9rem 0;
}
.marquee-track {
  display: flex; gap: 0; width: max-content;
  animation: marquee 30s linear infinite;
}
.marquee-track:hover { animation-play-state: paused; }
@keyframes marquee { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }
.marquee-item {
  font-size: var(--text-2xs); letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--muted); padding: 0 2.5rem; white-space: nowrap;
  border-right: 1px solid var(--border);
}
.marquee-item:nth-child(odd) { color: var(--ink); }

/* ════════════════════════════════════════
   TRUST SECTION — 15秒核心价值传达
   ════════════════════════════════════════ */
.trust-section {
  background: var(--ink);
  padding: 4rem clamp(1.5rem, 4vw, 4rem);
}
.trust-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 0;
  max-width: var(--max-w);
  margin: 0 auto;
  border: 1px solid rgba(184,136,42,0.15);
  border-radius: 4px;
  overflow: hidden;
}
.trust-item {
  padding: 2.5rem 2rem;
  border-right: 1px solid rgba(184,136,42,0.12);
  position: relative;
  transition: background 0.3s;
}
.trust-item:last-child { border-right: none; }
.trust-item:hover { background: rgba(184,136,42,0.04); }
.trust-num {
  font-family: var(--ff-display);
  font-size: clamp(2.4rem, 3.5vw, 3.8rem);
  font-weight: 900; color: var(--gold);
  line-height: 1; margin-bottom: 0.5rem;
  letter-spacing: -0.04em;
}
.trust-label {
  font-size: var(--text-sm-plus); color: rgba(250,250,248,0.72); line-height: var(--leading-normal);
}
.trust-label strong {
  display: block; color: var(--paper); font-weight: 600; margin-bottom: 0.2rem;
  font-size: var(--text-base);
}
.trust-label-sub {
  display: block; margin-top: 0.35rem;
  font-size: var(--text-2xs); color: rgba(250,250,248,0.55); line-height: var(--leading-tight);
}

/* ════════════════════════════════════════
   WHO WE HELP
   ════════════════════════════════════════ */
.who-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  border: 1px solid var(--border); margin-top: 3rem;
}
.who-item {
  padding: 2.5rem 2rem;
  border-right: 1px solid var(--border);
  transition: background 0.25s;
}
.who-item:last-child { border-right: none; }
.who-item:hover { background: rgba(184,136,42,0.08); }
.who-icon {
  font-size: 2rem; margin-bottom: 1.25rem;
  display: flex; align-items: center; justify-content: center;
  width: 56px; height: 56px;
  background: rgba(184,136,42,0.08); border: 1px solid var(--border-accent);
  border-radius: var(--r);
}
.who-item h3 { font-family: var(--ff-display); font-size: 1.05rem; font-weight: 700; margin-bottom: 0.75rem; }
.who-item p { font-size: var(--text-sm); color: var(--muted); line-height: var(--leading-relaxed); }

/* ════════════════════════════════════════
   PAIN POINTS
   ════════════════════════════════════════ */
.pain-section { background: var(--surface-2); }
.pain-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: rgba(26,24,20,0.08);
  border: 1px solid rgba(26,24,20,0.08);
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-top: 3rem;
  box-shadow: var(--shadow-md);
}
.pain-item {
  background: var(--surface-0);
  padding: 2rem 1.75rem;
  transition: background 0.25s, box-shadow 0.25s;
  position: relative;
}
.pain-item:hover {
  background: rgba(184,136,42,0.07);
  z-index: 1;
  box-shadow: inset 0 0 0 1px rgba(184,136,42,0.2);
}
.pain-icon { font-size: 1.85rem; margin-bottom: 1rem; display: block; }
.pain-title {
  font-family: var(--ff-display);
  font-size: 1.1rem; font-weight: 700;
  color: var(--ink); margin-bottom: 0.65rem;
}
.pain-desc { font-size: var(--text-sm-plus); color: var(--text2); line-height: var(--leading-relaxed); margin-bottom: 0.75rem; }
.pain-tag {
  display: inline-block;
  font-size: var(--text-2xs); color: var(--gold); font-weight: 600;
  border: 1px solid var(--border-accent);
  padding: 3px 11px; border-radius: 50px;
  background: rgba(184,136,42,0.08);
}

/* ════════════════════════════════════════
   SERVICES
   ════════════════════════════════════════ */
.services-section { background: var(--surface-0); }
.services-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem; margin-top: 3rem;
}
.service-card {
  background: var(--surface-0);
  border: 1px solid rgba(26,24,20,0.08);
  border-radius: var(--radius-md);
  padding: 2rem 1.75rem;
  position: relative; overflow: hidden;
  transition: border-color 0.3s, transform 0.3s, box-shadow 0.3s;
}
.service-card::before {
  content: ''; position: absolute;
  top: 0; left: 0; right: 0; height: 3px;
  background: linear-gradient(90deg, var(--gold), var(--gold-light));
  transform: scaleX(0); transform-origin: left;
  transition: transform 0.35s ease;
}
.service-card:hover {
  border-color: var(--border-accent);
  transform: translateY(-5px);
  box-shadow: var(--shadow-lg);
}
.service-card:hover::before { transform: scaleX(1); }
.service-icon {
  width: 52px; height: 52px; border-radius: var(--radius-md);
  background: rgba(184,136,42,0.1); border: 1px solid var(--border-accent);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.45rem; margin-bottom: 1.25rem;
}
.service-name {
  font-family: var(--ff-display);
  font-size: 1.15rem; font-weight: 700;
  color: var(--ink); margin-bottom: 0.65rem;
}
.service-desc { font-size: var(--text-sm-plus); color: var(--text2); line-height: var(--leading-relaxed); margin-bottom: 1.1rem; }
.service-tags { display: flex; flex-wrap: wrap; gap: 7px; }
.service-tag {
  background: var(--surface-2); border: 1px solid rgba(26,24,20,0.08);
  color: var(--muted); font-size: var(--text-2xs); padding: 4px 10px; border-radius: 2px;
}

/* ════════════════════════════════════════
   INDUSTRIES (expanded who)
   ════════════════════════════════════════ */
.industries-section { background: var(--surface-1); }
.industries-grid {
  display: grid; grid-template-columns: repeat(4, 1fr);
  gap: 1rem; margin-top: 3rem;
}
.industry-card {
  background: var(--surface-0);
  border: 1px solid rgba(26,24,20,0.08);
  border-radius: var(--radius-md);
  padding: 1.75rem 1.5rem;
  transition: all 0.25s;
}
.industry-card:hover {
  border-color: var(--border-accent);
  background: rgba(184,136,42,0.06);
  transform: translateY(-3px);
  box-shadow: var(--shadow-md);
}
.industry-icon { font-size: 1.75rem; margin-bottom: 0.85rem; display: block; }
.industry-name { font-size: var(--text-base); font-weight: 700; color: var(--ink); margin-bottom: 0.45rem; }
.industry-desc { font-size: var(--text-sm); color: var(--muted); line-height: var(--leading-normal); }

/* ════════════════════════════════════════
   PROOF / SOCIAL PROOF BAND
   ════════════════════════════════════════ */
.proof-section {
  background: var(--surface-0);
  border-top: 1px solid rgba(184,136,42,0.12);
  border-bottom: 1px solid rgba(184,136,42,0.12);
  padding: var(--section-py) clamp(1.5rem, 4vw, 4rem);
  position: relative;
}
.proof-section::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(ellipse 60% 50% at 50% 0%, var(--gold-glow) 0%, transparent 70%);
  pointer-events: none;
}
.proof-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; margin-top: 3rem;
  position: relative;
}
.proof-card {
  background: var(--surface-0); border: 1px solid rgba(26,24,20,0.08);
  border-radius: var(--radius-lg); padding: 2rem 1.75rem;
  transition: transform 0.25s, box-shadow 0.25s, border-color 0.25s;
  box-shadow: var(--shadow-sm);
  display: flex; flex-direction: column;
}
.proof-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-xl);
  border-color: var(--border-accent);
}
.proof-stars { color: var(--gold-light); font-size: var(--text-sm); letter-spacing: 0.08em; margin-bottom: 0.75rem; }
.proof-quote {
  font-family: var(--ff-display); font-size: 2.4rem;
  color: var(--gold); opacity: 0.25; line-height: 1;
  margin-bottom: 0.5rem;
}
.proof-text {
  font-size: var(--text-sm-plus); line-height: var(--leading-relaxed); color: var(--text2);
  margin-bottom: 1rem; flex: 1;
  font-style: italic;
}
.proof-result {
  display: inline-block;
  font-size: var(--text-2xs); font-weight: 700; color: var(--sage);
  background: rgba(26,158,106,0.08);
  border: 1px solid rgba(26,158,106,0.2);
  padding: 4px 10px; border-radius: 50px;
  margin-bottom: 1.25rem; align-self: flex-start;
}
.proof-author { display: flex; align-items: center; gap: 0.85rem; }
.proof-avatar {
  width: 44px; height: 44px; border-radius: 50%; flex-shrink: 0;
  background: linear-gradient(135deg, var(--gold), var(--gold-light));
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: var(--text-sm-plus); color: #fff;
  box-shadow: 0 4px 12px rgba(184,136,42,0.25);
}
.proof-cite { font-size: var(--text-sm-plus); color: var(--ink); font-weight: 700; }
.proof-role { font-size: var(--text-sm); color: var(--muted); margin-top: 2px; }

/* ════════════════════════════════════════
   PRICING
   ════════════════════════════════════════ */
.pricing-section { background: var(--surface-2); }
.pricing-intro { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: start; margin-bottom: 3rem; }
.pricing-note {
  background: var(--paper); border: 1px solid var(--border); border-left: 3px solid var(--gold);
  border-radius: var(--r); padding: 1.5rem 1.75rem;
  font-size: var(--text-sm); color: var(--muted); line-height: 1.75;
}
.pricing-note strong { color: var(--ink); }
.pricing-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.5rem; }
.price-card {
  background: var(--cream); border: 1px solid rgba(0,0,0,0.08); border-radius: 6px;
  padding: 2.5rem 2rem; position: relative;
  transition: box-shadow 0.25s, transform 0.25s, border-color 0.25s;
}
.price-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); border-color: var(--border-accent); }
.price-card.featured {
  background: var(--cream);
  border-color: var(--gold);
  box-shadow: 0 0 0 1px var(--gold), var(--shadow-md);
}
.price-badge {
  position: absolute; top: -14px; left: 50%; transform: translateX(-50%);
  background: var(--gold); color: #fff;
  font-size: var(--text-2xs); font-weight: 700; letter-spacing: 0.06em;
  padding: 5px 18px; border-radius: 50px;
  box-shadow: 0 3px 10px rgba(184,136,42,0.35);
}
.price-type {
  font-size: var(--text-sm); letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--gold); font-weight: 700; margin-bottom: 0.4rem;
}
.price-name {
  font-family: var(--ff-display); font-size: 1.5rem; font-weight: 700;
  color: var(--ink); margin-bottom: 0.25rem;
}
.price-tagline { font-size: var(--text-sm); color: var(--muted); margin-bottom: 1.5rem; }
.price-amount { display: flex; align-items: baseline; gap: 0.2rem; }
.price-currency { font-size: 1.5rem; font-weight: 700; color: var(--ink); }
.price-num {
  font-family: var(--ff-display); font-size: 3rem; font-weight: 900; color: var(--gold);
  line-height: 1; letter-spacing: -0.04em;
}
.price-card.featured .price-currency,
.price-card.featured .price-num { color: var(--gold); }
.price-period { font-size: var(--text-2xs); color: var(--muted); margin-top: 0.15rem; }
.price-range { font-family: var(--ff-mono); font-size: var(--text-2xs); color: var(--gold); margin-top: 0.2rem; }
.price-divider { border: none; border-top: 1px solid rgba(0,0,0,0.06); margin: 1.5rem 0; }
.price-features { list-style: none; display: flex; flex-direction: column; gap: 0.6rem; margin-bottom: 1.75rem; }
.price-features li {
  font-size: var(--text-sm); color: var(--text2);
  padding-left: 1.25rem; position: relative; line-height: 1.5;
}
.price-features li::before { content: '✓'; position: absolute; left: 0; color: var(--sage); font-size: var(--text-2xs); top: 0.05em; font-weight: 700; }
.price-cta {
  display: block; text-align: center; padding: 0.875rem;
  border: 1.5px solid var(--border-accent); border-radius: var(--r);
  font-size: var(--text-sm); font-weight: 700; color: var(--gold);
  text-decoration: none; letter-spacing: 0.03em;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}
.price-cta:hover { background: rgba(184,136,42,0.08); border-color: var(--gold); }
.price-card.featured .price-cta {
  background: var(--gold); border-color: var(--gold); color: #fff;
  box-shadow: 0 3px 12px rgba(184,136,42,0.3);
}
.price-card.featured .price-cta:hover { background: #9A7020; border-color: #9A7020; }
.price-custom {
  margin-top: 1.5rem; border: 1px solid var(--border); border-radius: 4px;
  padding: 2rem 2.5rem; display: flex; align-items: center; gap: 3rem;
  background: var(--paper); flex-wrap: wrap;
}
.price-custom-left { flex: 1; min-width: 240px; }
.price-custom-left h3 { font-family: var(--ff-display); font-size: 1.35rem; font-weight: 700; margin-bottom: 0.5rem; }
.price-custom-left p { font-size: var(--text-sm); color: var(--muted); }
.price-custom-amount { font-family: var(--ff-display); font-size: 1.85rem; font-weight: 900; color: var(--ink); white-space: nowrap; }
.price-custom-amount span { font-size: var(--text-sm-plus); color: var(--gold); font-weight: 400; }

.pricing-included {
  text-align: center;
  margin-top: 2rem;
  font-size: var(--text-sm);
  color: var(--muted);
}
.pricing-guarantee {
  display: block;
  text-align: center;
  margin: 1.25rem auto 0;
  max-width: 680px;
  color: var(--gold);
  font-size: var(--text-sm-plus);
  border: 1px solid var(--border-accent);
  padding: 14px 28px;
  border-radius: var(--radius-md);
  background: rgba(184,136,42,0.08);
  line-height: 1.75;
}

/* ════════════════════════════════════════
   CALCULATOR
   ════════════════════════════════════════ */
.calc-section {
  background: linear-gradient(165deg, #1A1814 0%, #252118 50%, #1A1814 100%);
  color: var(--paper);
  position: relative;
  overflow: hidden;
}
.calc-section::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(ellipse 55% 45% at 80% 20%, rgba(184,136,42,0.12) 0%, transparent 60%);
  pointer-events: none;
}
.calc-section .section-tag { color: var(--gold-light); background: rgba(184,136,42,0.15); }
.calc-section .section-body { color: rgba(255,255,255,0.55); }
.calc-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; margin-top: 3rem; align-items: start; }
.calc-options { display: flex; flex-direction: column; gap: 0.75rem; }
.calc-option {
  display: flex; align-items: center; gap: 1rem;
  padding: 1rem 1.25rem; border: 1px solid rgba(245,240,232,0.1);
  border-radius: 4px; cursor: pointer; transition: all 0.2s;
}
.calc-option:hover, .calc-option.active { border-color: var(--gold); background: rgba(184,136,42,0.1); }
.calc-option input[type="checkbox"] { width: 16px; height: 16px; accent-color: var(--gold); cursor: pointer; flex-shrink: 0; }
.calc-option-label { flex: 1; }
.calc-option-label strong { display: block; font-size: var(--text-sm-plus); font-weight: 500; color: var(--paper); }
.calc-option-label span { font-size: var(--text-sm); color: rgba(245,240,232,0.55); }
.calc-option-price { font-family: var(--ff-mono); font-size: var(--text-sm); color: var(--gold); white-space: nowrap; }
.calc-result {
  position: sticky; top: calc(var(--nav-h) + 1rem);
  background: rgba(255,255,255,0.04); border: 1px solid rgba(184,136,42,0.28);
  border-radius: 6px; padding: 2.25rem;
}
.calc-total-label { font-size: var(--text-2xs); letter-spacing: 0.12em; text-transform: uppercase; color: rgba(245,240,232,0.45); margin-bottom: 0.75rem; }
.calc-total-num { font-family: var(--ff-display); font-size: 3.2rem; font-weight: 900; color: var(--paper); line-height: 1; margin-bottom: 0.4rem; letter-spacing: -0.03em; }
.calc-total-sub { font-size: var(--text-sm); color: rgba(245,240,232,0.45); margin-bottom: 1.5rem; }
.calc-breakdown { border-top: 1px solid rgba(245,240,232,0.08); padding-top: 1.25rem; margin-bottom: 1.5rem; }
.calc-breakdown-item { display: flex; justify-content: space-between; font-size: var(--text-sm); color: rgba(245,240,232,0.62); margin-bottom: 0.4rem; }
.calc-breakdown-item span:last-child { font-family: var(--ff-mono); color: var(--gold); }
.calc-cta {
  display: block; text-align: center; padding: 1rem;
  background: var(--gold); color: #fff; border-radius: var(--r);
  font-weight: 700; font-size: var(--text-base); text-decoration: none; letter-spacing: 0.03em;
  transition: background 0.2s;
  box-shadow: 0 3px 12px rgba(184,136,42,0.3);
}
.calc-cta:hover { background: #9A7020; }

/* ════════════════════════════════════════
   PROCESS
   ════════════════════════════════════════ */
.process-steps {
  display: grid; grid-template-columns: repeat(5, 1fr);
  gap: 0; margin-top: 4rem; position: relative;
}
.process-steps::before {
  content: ''; position: absolute; top: 31px; left: 10%; right: 10%; height: 1px;
  background: linear-gradient(90deg, transparent, var(--border-accent), var(--gold), var(--border-accent), transparent); z-index: 0;
}
.process-step { text-align: center; padding: 0 0.75rem; position: relative; z-index: 1; }
.process-step-num {
  width: 62px; height: 62px; border-radius: 50%;
  border: 1.5px solid var(--border-accent); background: var(--cream);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--ff-display); font-size: 1.4rem; font-weight: 700; color: var(--gold);
  margin: 0 auto 1rem;
  box-shadow: var(--shadow-sm);
  transition: all 0.3s;
}
.process-step:hover .process-step-num {
  background: var(--gold); color: #fff;
  box-shadow: 0 0 24px rgba(184,136,42,0.3);
}
.process-step h3 { font-family: var(--ff-display); font-size: var(--text-base); font-weight: 700; margin-bottom: 0.5rem; }
.process-step p { font-size: var(--text-sm); color: var(--muted); line-height: var(--leading-normal); }

/* ════════════════════════════════════════
   SEO — dark green panel (图二配色)
   ════════════════════════════════════════ */
.seo-section {
  background: linear-gradient(160deg, #243322 0%, #2d3e2d 48%, #283528 100%);
  color: #fff;
  position: relative;
  overflow: hidden;
}
.seo-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 60% 70% at 85% 20%, rgba(184,136,42,0.1) 0%, transparent 65%);
  pointer-events: none;
}
.seo-section .section-inner { position: relative; z-index: 1; }
.seo-section .section-tag {
  color: rgba(255,255,255,0.72);
  background: transparent;
  border: none;
  border-left: 3px solid var(--gold);
  border-radius: 0;
  padding: 0 0 0 12px;
  letter-spacing: 0.18em;
}
.seo-title {
  color: #fff;
  max-width: none;
  margin-bottom: 0.75rem;
}
.seo-desc {
  color: rgba(255,255,255,0.58);
  max-width: 56ch;
  margin-bottom: 0;
}
.seo-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(2.5rem, 5vw, 4rem);
  margin-top: 3rem;
}
.seo-kw-label {
  font-size: var(--text-2xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.45);
  margin-bottom: 1.25rem;
}
.seo-keywords-wall { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.seo-kw {
  background: rgba(255,255,255,0.07);
  border: 1px solid rgba(255,255,255,0.12);
  color: rgba(255,255,255,0.78);
  font-size: var(--text-sm);
  padding: 8px 14px;
  border-radius: 4px;
  font-family: var(--ff-body);
  transition: background 0.2s, border-color 0.2s, color 0.2s;
}
.seo-kw:hover {
  background: rgba(255,255,255,0.12);
  border-color: rgba(255,255,255,0.22);
  color: #fff;
}
.seo-kw.high {
  background: transparent;
  border-color: rgba(212,168,67,0.65);
  color: var(--gold-light);
  font-weight: 600;
}
.seo-kw.high:hover {
  background: rgba(184,136,42,0.12);
  border-color: var(--gold-light);
}
.seo-tip {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.4rem;
  padding-bottom: 1.4rem;
  border-bottom: 1px solid rgba(255,255,255,0.09);
}
.seo-tip:last-child { border-bottom: none; margin-bottom: 0; padding-bottom: 0; }
.seo-tip-num {
  font-family: var(--ff-display);
  font-size: clamp(2rem, 3vw, 2.6rem);
  font-weight: 900;
  color: rgba(184,136,42,0.42);
  line-height: 1;
  flex-shrink: 0;
  min-width: 2rem;
}
.seo-tip-content h4 {
  font-weight: 700;
  margin-bottom: 0.3rem;
  color: #fff;
}
.seo-tip-content p {
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.6);
  line-height: 1.65;
}

#process { background: var(--surface-0); }

/* ════════════════════════════════════════
   FAQ
   ════════════════════════════════════════ */
.faq-section {
  background: var(--surface-0);
}
.faq-layout {
  display: grid;
  grid-template-columns: minmax(260px, 340px) 1fr;
  gap: clamp(2.5rem, 5vw, 5rem);
  align-items: start;
}
.faq-intro {
  position: sticky;
  top: calc(var(--nav-h) + 2rem);
}
.faq-title {
  max-width: none;
  margin-bottom: 1rem;
}
.faq-intro-desc {
  font-size: var(--text-sm-plus);
  color: var(--text2);
  line-height: var(--leading-relaxed);
  margin-bottom: 2rem;
}
.faq-highlights {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  margin-bottom: 2rem;
  padding: 1.25rem 0;
  border-top: 1px solid rgba(0,0,0,0.07);
  border-bottom: 1px solid rgba(0,0,0,0.07);
}
.faq-highlight {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}
.faq-highlight-icon {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: rgba(26,158,106,0.12);
  color: var(--sage);
  font-size: var(--text-2xs);
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 0.15rem;
}
.faq-highlight strong {
  display: block;
  font-size: var(--text-sm-plus);
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 0.15rem;
}
.faq-highlight span {
  font-size: var(--text-sm);
  color: var(--muted);
  line-height: var(--leading-normal);
}
.faq-intro-note {
  font-size: var(--text-sm);
  color: var(--muted);
  line-height: var(--leading-normal);
}
.faq-intro-note a {
  color: var(--gold);
  font-weight: 600;
  text-decoration: none;
  border-bottom: 1px solid rgba(184,136,42,0.35);
}
.faq-intro-note a:hover { color: var(--gold-deep); }

.faq-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px 16px;
  align-content: start;
}
.faq-item {
  border: 1px solid rgba(0,0,0,0.08);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--cream);
  transition: border-color 0.25s, box-shadow 0.25s, transform 0.25s;
  align-self: start;
}
.faq-item:hover {
  border-color: var(--border-accent);
  box-shadow: var(--shadow-sm);
  transform: translateY(-1px);
}
.faq-item.open {
  border-color: var(--border-accent);
  box-shadow: var(--shadow-md);
  transform: none;
  background: linear-gradient(135deg, #fff 0%, rgba(184,136,42,0.03) 100%);
}
.faq-q {
  width: 100%; text-align: left; background: none; border: none; cursor: pointer;
  padding: 1.15rem 1.35rem; display: flex; justify-content: space-between; align-items: flex-start;
  font-family: var(--ff-body); font-size: var(--text-base); font-weight: 700; color: var(--ink); gap: 1rem;
  line-height: var(--leading-tight);
}
.faq-q:hover { color: var(--gold); }
.faq-item.open .faq-q { color: var(--gold); padding-bottom: 1rem; }
.faq-icon {
  flex-shrink: 0; font-size: 1rem; font-weight: 400;
  transition: transform 0.3s, background 0.3s, color 0.3s; color: var(--gold);
  width: 26px; height: 26px; border-radius: 50%;
  border: 1.5px solid var(--border-accent);
  display: flex; align-items: center; justify-content: center;
  background: rgba(184,136,42,0.08);
  margin-top: 0.05rem;
}
.faq-item.open .faq-icon {
  transform: rotate(45deg);
  background: var(--gold);
  color: #fff;
  border-color: var(--gold);
}
.faq-a {
  font-size: var(--text-sm-plus); color: var(--text2); line-height: var(--leading-relaxed);
  max-height: 0; overflow: hidden;
  padding: 0 1.35rem;
  transition: max-height 0.55s ease, padding 0.3s, border-top-width 0.3s;
  border-top: 0 solid rgba(184,136,42,0.12);
}
.faq-item.open .faq-a {
  max-height: 900px;
  padding: 0 1.35rem 1.35rem;
  border-top: 1px solid rgba(184,136,42,0.12);
}

/* FAQ noscript 降级（由 generate-sitemap / sync 从 content-index.json 写入） */
.faq-noscript {
  margin-top: 1.5rem;
  padding-top: 1.25rem;
  border-top: 1px dashed rgba(184,136,42,0.25);
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}
.faq-noscript-item {
  background: var(--surface-0);
  border: 1px solid rgba(184,136,42,0.15);
  border-radius: var(--radius-md);
  padding: 0.85rem 1.1rem;
}
.faq-noscript-item summary {
  font-size: var(--text-sm-plus);
  font-weight: 700;
  color: var(--ink);
  cursor: pointer;
  line-height: 1.5;
  list-style: none;
}
.faq-noscript-item summary::-webkit-details-marker { display: none; }
.faq-noscript-item p {
  margin: 0.75rem 0 0;
  font-size: var(--text-sm);
  line-height: var(--leading-relaxed);
  color: var(--text2);
}

/* ════════════════════════════════════════
   CTA — Final conversion section
   ════════════════════════════════════════ */
.cta-section {
  background: linear-gradient(165deg, #0f0e0c 0%, #1A1814 45%, #1f1912 100%);
  color: var(--paper);
  padding: clamp(5rem, 9vw, 7rem) clamp(1.5rem, 4vw, 4rem);
  position: relative;
  overflow: hidden;
  border-top: 1px solid rgba(184,136,42,0.12);
}
.cta-glow {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 55% 70% at 15% 50%, rgba(184,136,42,0.14) 0%, transparent 65%),
    radial-gradient(ellipse 40% 50% at 85% 60%, rgba(184,136,42,0.08) 0%, transparent 60%);
  pointer-events: none;
}
.cta-bg-text {
  position: absolute;
  top: 50%;
  right: -2%;
  transform: translateY(-50%);
  font-family: var(--ff-display);
  font-size: clamp(5rem, 12vw, 11rem);
  font-weight: 900;
  color: rgba(184,136,42,0.035);
  white-space: nowrap;
  pointer-events: none;
  letter-spacing: -0.04em;
  line-height: 1;
}
.cta-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(320px, 400px);
  gap: clamp(2.5rem, 5vw, 4.5rem);
  align-items: center;
  position: relative;
  z-index: 1;
}
.cta-section .section-tag {
  color: var(--gold-light);
  background: rgba(184,136,42,0.12);
  border-color: rgba(184,136,42,0.22);
  margin-bottom: 1.25rem;
}
.cta-title {
  font-family: var(--ff-display);
  font-size: clamp(2.1rem, 3.8vw, 3.5rem);
  font-weight: 700;
  line-height: 1.14;
  letter-spacing: -0.02em;
  color: #fff;
  margin-bottom: 1.25rem;
  max-width: 14ch;
}
.cta-accent {
  color: var(--gold-light);
  font-style: italic;
}
.cta-desc {
  font-size: clamp(var(--text-sm-plus), 1.1vw, var(--text-md));
  color: rgba(255,255,255,0.62);
  line-height: var(--leading-relaxed);
  max-width: 52ch;
  margin-bottom: 2rem;
}
.cta-desc strong {
  color: rgba(255,255,255,0.92);
  font-weight: 600;
}
.cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  align-items: center;
}
.cta-btn-primary {
  font-size: var(--text-base);
  padding: 1rem 2rem;
}
.cta-btn-secondary {
  border-color: rgba(255,255,255,0.22);
  color: rgba(255,255,255,0.88);
  background: rgba(255,255,255,0.04);
  font-size: var(--text-base);
  padding: 0.95rem 1.6rem;
}
.cta-btn-secondary:hover {
  border-color: var(--gold-light);
  color: var(--gold-light);
  background: rgba(184,136,42,0.1);
}

/* Contact panel */
.cta-panel {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(184,136,42,0.22);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  backdrop-filter: blur(16px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.25);
}
.cta-panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.1rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.cta-panel-label {
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.5);
}
.cta-panel-badge {
  font-size: var(--text-2xs);
  font-weight: 700;
  color: var(--gold-light);
  background: rgba(184,136,42,0.15);
  border: 1px solid rgba(184,136,42,0.28);
  padding: 4px 10px;
  border-radius: 50px;
  white-space: nowrap;
}
.cta-contact-list {
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
}
.cta-contact-row {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.9rem 1rem;
  border-radius: var(--radius-md);
  text-decoration: none;
  border: 1px solid rgba(255,255,255,0.07);
  background: rgba(255,255,255,0.02);
  transition: background 0.22s, border-color 0.22s, transform 0.22s;
}
.cta-contact-row:hover {
  background: rgba(184,136,42,0.1);
  border-color: rgba(184,136,42,0.3);
  transform: translateX(3px);
}
.cta-contact-row--featured {
  background: rgba(184,136,42,0.12);
  border-color: rgba(184,136,42,0.32);
}
.cta-row-icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: 8px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.05rem;
}
.cta-contact-row--featured .cta-row-icon {
  background: rgba(184,136,42,0.18);
  border-color: rgba(184,136,42,0.35);
}
.cta-row-body {
  flex: 1;
  min-width: 0;
  text-align: left;
}
.cta-row-type {
  display: block;
  font-size: var(--text-2xs);
  color: rgba(255,255,255,0.42);
  margin-bottom: 0.15rem;
  letter-spacing: 0.03em;
}
.cta-row-value {
  display: block;
  font-size: var(--text-base);
  font-weight: 600;
  color: var(--gold-light);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.cta-row-arrow {
  flex-shrink: 0;
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.25);
  transition: color 0.22s, transform 0.22s;
}
.cta-contact-row:hover .cta-row-arrow {
  color: var(--gold-light);
  transform: translateX(2px);
}
.cta-panel-note {
  margin-top: 1rem;
  padding-top: 0.85rem;
  border-top: 1px solid rgba(255,255,255,0.06);
  font-size: var(--text-2xs);
  color: rgba(255,255,255,0.38);
  text-align: center;
  line-height: 1.5;
}

/* Trust bar */
.cta-trust-bar {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem 1.5rem;
  margin-top: clamp(2.5rem, 4vw, 3.5rem);
  padding-top: 2rem;
  border-top: 1px solid rgba(255,255,255,0.08);
  position: relative;
  z-index: 1;
}
.cta-trust-item {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  font-size: var(--text-sm);
  color: rgba(255,255,255,0.48);
  line-height: 1.45;
  text-align: left;
}
.cta-trust-item::before {
  content: '✓';
  flex-shrink: 0;
  color: var(--sage);
  font-size: var(--text-2xs);
  font-weight: 700;
  margin-top: 0.1rem;
}

/* ════════════════════════════════════════
   FOOTER — dark deck (extends CTA / trust palette)
   ════════════════════════════════════════ */
footer {
  position: relative;
  background: linear-gradient(180deg, var(--footer-bg-top) 0%, var(--footer-bg-bottom) 100%);
  color: var(--footer-text);
  padding: clamp(3.25rem, 6vw, 4.75rem) clamp(1.5rem, 4vw, 4rem) clamp(2.5rem, 4vw, 3.25rem);
  border-top: none;
  overflow: hidden;
}
footer::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 55% at 18% 0%, rgba(184,136,42,0.09) 0%, transparent 58%),
    radial-gradient(ellipse 50% 40% at 92% 85%, rgba(184,136,42,0.05) 0%, transparent 55%);
  pointer-events: none;
}
.footer-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  position: relative;
  z-index: 1;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: clamp(2rem, 4vw, 3.5rem);
  margin-bottom: clamp(2.5rem, 4vw, 3.5rem);
}
.footer-logo-link {
  display: inline-block;
  text-decoration: none;
  margin-bottom: 1rem;
}
.footer-logo {
  font-family: var(--ff-display);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--footer-text-strong);
}
.footer-logo span { color: var(--gold-light); }
.footer-brand-desc {
  font-size: var(--text-sm);
  line-height: 1.78;
  color: var(--footer-text);
  max-width: 320px;
  margin-bottom: 0.65rem;
}
.footer-brand-note {
  font-size: var(--text-sm);
  color: var(--footer-text-muted);
}
.footer-col h4 {
  font-size: var(--text-sm);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: #E8C878;
  margin-bottom: 1.1rem;
  font-weight: 700;
  font-family: var(--ff-body);
  padding-left: 0.7rem;
  border-left: 2px solid rgba(212,168,67,0.65);
}
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 0.55rem; }
.footer-col a {
  color: var(--footer-text);
  text-decoration: none;
  font-size: var(--text-sm);
  transition: color 0.2s;
}
.footer-col a:hover { color: var(--footer-text-strong); }
.footer-bottom {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
  padding-top: 1.75rem;
  border-top: 1px solid var(--footer-border);
}
.footer-legal-block {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}
.footer-copy {
  font-size: var(--text-sm);
  color: var(--footer-text);
  line-height: 1.65;
}
.footer-beian {
  font-size: var(--text-sm);
  color: var(--footer-text);
  text-decoration: none;
  transition: color 0.2s;
}
.footer-beian:hover { color: #E8C878; }
.footer-seo-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  justify-content: flex-end;
  max-width: 420px;
}
.footer-seo-tag {
  font-size: var(--text-2xs);
  color: var(--footer-text-muted);
  border: 1px solid rgba(184,136,42,0.32);
  padding: 3px 9px;
  border-radius: 2px;
  background: rgba(255,255,255,0.06);
}

/* ════════════════════════════════════════
   SCROLL ANIMATIONS
   ════════════════════════════════════════ */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.65s ease, transform 0.65s ease; }
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ════════════════════════════════════════
   RESPONSIVE — TABLET
   ════════════════════════════════════════ */
@media (max-width: 1024px) {
  #mainNav { padding: 0 2rem; }
  .nav-links { display: none; }
  .nav-hamburger { display: flex; }
  .nav-drawer { display: flex; }

  .hero-inner { grid-template-columns: 1fr; gap: 3.75rem; padding: 4rem 2rem 3rem; text-align: center; }
  .hero-desc { margin: 0 auto 3rem; }
  .hero-actions { justify-content: center; }
  .hero-stats { justify-content: center; margin: 0 auto; }
  #hero .hero-visual { display: none; }

  .pain-grid { grid-template-columns: repeat(2, 1fr); }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .industries-grid { grid-template-columns: repeat(2, 1fr); }

  .trust-grid { grid-template-columns: repeat(2,1fr); }
  .trust-item:nth-child(2) { border-right: none; }
  .trust-item:nth-child(3) { border-top: 1px solid rgba(184,136,42,0.12); }
  .trust-item:nth-child(4) { border-top: 1px solid rgba(184,136,42,0.12); border-right: none; }

  .who-grid { grid-template-columns: repeat(2,1fr); }

  .proof-grid { grid-template-columns: 1fr; }
  .pricing-intro { grid-template-columns: 1fr; gap: 2rem; margin-bottom: 2rem; }
  .pricing-grid { grid-template-columns: 1fr 1fr; }
  .calc-grid { grid-template-columns: 1fr; }
  .process-steps { grid-template-columns: repeat(3,1fr); gap: 2rem; }
  .process-steps::before { display: none; }
  .seo-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .faq-layout { grid-template-columns: 1fr; gap: 2.5rem; }
  .faq-intro { position: static; }
  .faq-list { grid-template-columns: 1fr; }
  .cta-layout { grid-template-columns: 1fr; gap: 2.5rem; }
  .cta-title { max-width: none; }
  .cta-trust-bar { grid-template-columns: repeat(2, 1fr); }

  section { padding: 5rem 2.5rem; }
  .trust-section { padding: 3rem 2.5rem; }

  .contact-rail {
    top: auto;
    bottom: calc(4.75rem + env(safe-area-inset-bottom, 0px));
    transform: none;
    filter: drop-shadow(-2px 0 12px rgba(0, 0, 0, 0.18));
  }
  .contact-rail-contact,
  .contact-rail-sep { display: none; }
  .contact-rail-scroll-btn:first-child { border-radius: var(--r) 0 0 0; }
  .contact-float-bar { display: flex; }
  body { padding-bottom: 64px; }
}

@media (max-width: 600px) {
  .pricing-grid { grid-template-columns: 1fr; }
  .pain-grid { grid-template-columns: 1fr; }
  .services-grid { grid-template-columns: 1fr; }
  .industries-grid { grid-template-columns: 1fr 1fr; }
  .process-steps { grid-template-columns: repeat(2,1fr); }
  .trust-grid { grid-template-columns: 1fr 1fr; }
  .industries-grid { grid-template-columns: 1fr; }
  section { padding: 4rem 1.5rem; }
  .trust-section { padding: 3rem 1.5rem; }
  footer { padding: 2.5rem 1.5rem; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; }
  .footer-seo-tags { justify-content: flex-start; max-width: none; }
  .cta-section { padding: 5rem 1.5rem; }
  .cta-trust-bar { grid-template-columns: 1fr; gap: 0.65rem; }
  .cta-actions { flex-direction: column; align-items: stretch; }
  .cta-btn-primary, .cta-btn-secondary { justify-content: center; width: 100%; }
  .cta-bg-text { display: none; }
  .hero-inner { padding: 3.5rem 1.5rem 2.5rem; }
  .hero-stats { gap: 1.5rem; }
  #hero.hero { min-height: auto; }

  /* 移动端：可读正文不低于 14px */
  .pain-desc, .service-desc, .proof-text, .faq-a, .faq-intro-desc,
  .pricing-note, .price-features li, .cta-desc, .cta-trust-item,
  .footer-brand-desc, .footer-col a, .footer-copy {
    font-size: max(var(--text-sm), 14px);
  }
}

@media (min-width: 1440px) {
  #mainNav { padding: 0 5rem; }
  section { padding: 7rem 5rem; }
  .hero-inner { padding: 5rem 5rem; }
  footer { padding: 3rem 5rem; }
}