/* ============================================================
   玥通(福建)智能科技有限公司 · 官网
   设计概念:「深海信号 DEEP-SEA SIGNAL」
   —— 深渊蓝黑为底,龙虾红为品牌强调,生物荧光青为信号色
   ============================================================ */

@font-face {
  font-family: 'Michroma';
  src: url('../fonts/michroma.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}

:root {
  /* 深海色阶 */
  --abyss-0: #02060f;
  --abyss-1: #050b18;
  --abyss-2: #081226;
  --abyss-3: #0c1a38;
  --panel: rgba(9, 19, 40, 0.58);
  --panel-solid: #0a1428;
  --line: rgba(110, 170, 255, 0.14);
  --line-strong: rgba(110, 170, 255, 0.28);

  /* 生物荧光青 —— 信号色 */
  --cyan: #43e8ff;
  --cyan-dim: #2bb8d9;
  --cyan-glow: rgba(67, 232, 255, 0.16);

  /* 龙虾红 —— 品牌强调色 */
  --lobster: #ff4d2e;
  --lobster-hi: #ff7a45;
  --lobster-deep: #e03214;
  --lobster-glow: rgba(255, 77, 46, 0.22);

  /* 电光蓝紫 —— 深海渐变辅助 */
  --electric: #3d6bff;
  --violet: #7a5cff;

  /* 文字 */
  --ink-hi: #eef4ff;
  --ink: #b9c9e4;
  --ink-dim: #7a90b5;

  /* 字体 */
  --display: 'Michroma', 'Bahnschrift', 'Arial Narrow', sans-serif;
  --sans: 'PingFang SC', 'HarmonyOS Sans SC', 'MiSans', 'Source Han Sans SC',
    'Microsoft YaHei', 'Noto Sans SC', sans-serif;
  --mono: 'JetBrains Mono', 'Cascadia Code', 'Consolas', 'Courier New', monospace;

  /* 渐变 */
  --grad-lobster: linear-gradient(135deg, #ff7a45 0%, #ff4d2e 55%, #e03214 100%);
  --grad-signal: linear-gradient(90deg, var(--cyan) 0%, #7a5cff 100%);
  --grad-text: linear-gradient(92deg, #eef4ff 0%, #9fc4ff 55%, #43e8ff 100%);

  --radius: 18px;
  --radius-sm: 12px;
  --nav-h: 72px;
  --shadow-card: 0 20px 60px -20px rgba(2, 8, 24, 0.9);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink);
  background-color: var(--abyss-1);
  overflow-x: hidden;
  min-height: 100vh;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font: inherit; color: inherit; background: none; border: none; cursor: pointer; }
::selection { background: rgba(255, 77, 46, 0.35); color: #fff; }

/* ---------- 全局氛围层 ---------- */
body::before {
  /* 深海光柱与浮游光 */
  content: '';
  position: fixed; inset: 0; z-index: -3; pointer-events: none;
  background:
    radial-gradient(1100px 520px at 88% -8%, rgba(61, 107, 255, 0.17), transparent 62%),
    radial-gradient(900px 640px at -12% 32%, rgba(43, 184, 217, 0.10), transparent 55%),
    radial-gradient(760px 500px at 55% 118%, rgba(255, 77, 46, 0.07), transparent 60%),
    var(--abyss-1);
}
body::after {
  /* 胶片颗粒 */
  content: '';
  position: fixed; inset: 0; z-index: 60; pointer-events: none;
  opacity: 0.05;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)'/%3E%3C/svg%3E");
}

.container { width: min(1180px, 92%); margin-inline: auto; }
.section { padding: 104px 0; position: relative; }
.section.tight { padding: 72px 0; }

/* ---------- 通用排版 ---------- */
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--mono); font-size: 12.5px; letter-spacing: 0.22em;
  color: var(--cyan); text-transform: uppercase;
}
.eyebrow::before {
  content: '';
  width: 26px; height: 1px;
  background: linear-gradient(90deg, transparent, var(--cyan));
}
.eyebrow .idx { color: var(--lobster); }

.display-latin {
  font-family: var(--display);
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.h-section {
  margin-top: 16px;
  font-size: clamp(1.7rem, 3.4vw, 2.5rem);
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: 0.01em;
  color: var(--ink-hi);
}
.h-section em {
  font-style: normal;
  background: var(--grad-text);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}
.section-sub {
  margin-top: 14px;
  max-width: 620px;
  color: var(--ink-dim);
  font-size: 15.5px;
}
.section-head { margin-bottom: 56px; }
.section-head.center { text-align: center; }
.section-head.center .section-sub { margin-inline: auto; }
.section-head.center .eyebrow::before { display: none; }
.section-head.center .eyebrow { justify-content: center; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  padding: 14px 30px;
  border-radius: 999px;
  font-size: 15.5px; font-weight: 600; letter-spacing: 0.02em;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background 0.25s ease, border-color 0.25s ease;
  white-space: nowrap;
}
.btn svg { width: 17px; height: 17px; }
.btn-primary {
  color: #fff;
  background: var(--grad-lobster);
  box-shadow: 0 10px 34px -8px var(--lobster-glow), inset 0 1px 0 rgba(255,255,255,0.22);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 16px 44px -8px rgba(255, 77, 46, 0.4), inset 0 1px 0 rgba(255,255,255,0.22); }
.btn-ghost {
  color: var(--cyan);
  border: 1px solid rgba(67, 232, 255, 0.35);
  background: rgba(67, 232, 255, 0.05);
}
.btn-ghost:hover { transform: translateY(-2px); border-color: var(--cyan); background: var(--cyan-glow); }
.btn-sm { padding: 10px 22px; font-size: 14px; }
.btn-lg { padding: 17px 38px; font-size: 16.5px; }

/* ---------- 导航 ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: var(--nav-h);
  display: flex; align-items: center;
  transition: background 0.3s ease, border-color 0.3s ease, backdrop-filter 0.3s ease;
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  background: rgba(4, 9, 20, 0.78);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border-bottom-color: var(--line);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; width: min(1180px, 92%); margin-inline: auto; }
.brand { display: flex; align-items: center; gap: 12px; }
.brand-mark { width: 40px; height: 40px; filter: drop-shadow(0 4px 14px rgba(255, 77, 46, 0.35)); }
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-cn { font-size: 18px; font-weight: 800; color: var(--ink-hi); letter-spacing: 0.08em; }
.brand-en { font-family: var(--display); font-size: 9.5px; letter-spacing: 0.34em; color: var(--ink-dim); }

.nav-links { display: flex; align-items: center; gap: 34px; }
.nav-links a {
  position: relative;
  font-size: 15px; color: var(--ink);
  padding: 6px 0;
  transition: color 0.25s ease;
}
.nav-links a::after {
  content: '';
  position: absolute; left: 0; right: 100%; bottom: 0;
  height: 2px; border-radius: 2px;
  background: var(--grad-lobster);
  transition: right 0.3s ease;
}
.nav-links a:hover, .nav-links a.active { color: var(--ink-hi); }
.nav-links a:hover::after, .nav-links a.active::after { right: 0; }
.nav-cta { display: flex; align-items: center; gap: 14px; }

.nav-toggle { display: none; width: 42px; height: 42px; position: relative; z-index: 110; }
.nav-toggle span {
  position: absolute; left: 10px; right: 10px; height: 2px; border-radius: 2px;
  background: var(--ink-hi);
  transition: transform 0.3s ease, opacity 0.3s ease, top 0.3s ease;
}
.nav-toggle span:nth-child(1) { top: 15px; }
.nav-toggle span:nth-child(2) { top: 22px; }
.nav-toggle span:nth-child(3) { top: 29px; }
.nav-toggle.open span:nth-child(1) { top: 22px; transform: rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { top: 22px; transform: rotate(-45deg); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: calc(var(--nav-h) + 84px) 0 96px;
  overflow: hidden;
}
.hero::before {
  /* 深海透光 */
  content: '';
  position: absolute; inset: 0; pointer-events: none;
  background:
    linear-gradient(180deg, rgba(2, 6, 15, 0) 0%, rgba(2, 6, 15, 0.4) 88%, var(--abyss-1) 100%),
    radial-gradient(640px 420px at 76% 42%, rgba(61, 107, 255, 0.10), transparent 70%);
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 48px;
  align-items: center;
  position: relative;
  z-index: 2;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 7px 16px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: rgba(12, 26, 56, 0.5);
  font-size: 13px; color: var(--ink);
  margin-bottom: 28px;
}
.hero-badge .dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 10px var(--cyan);
  animation: blink 2.2s ease-in-out infinite;
}
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0.25; } }

.hero h1 {
  font-size: clamp(2.3rem, 5.2vw, 3.7rem);
  font-weight: 900;
  line-height: 1.22;
  letter-spacing: 0.01em;
  color: var(--ink-hi);
}
.hero h1 .hl {
  background: var(--grad-lobster);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}
.hero h1 .hl2 {
  background: var(--grad-signal);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}
.hero-sub {
  margin-top: 22px;
  max-width: 560px;
  font-size: 16.5px;
  color: var(--ink);
}
.hero-sub strong { color: var(--cyan); font-weight: 600; }
.hero-actions { margin-top: 36px; display: flex; gap: 16px; flex-wrap: wrap; }
.hero-note {
  margin-top: 20px;
  display: flex; align-items: center; gap: 8px;
  font-family: var(--mono); font-size: 12px; color: var(--ink-dim);
}
.hero-note svg { width: 14px; height: 14px; color: var(--cyan); }

.hero-stats {
  margin-top: 60px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
  padding-top: 30px;
  gap: 24px;
}
.stat .num {
  font-family: var(--display);
  font-size: clamp(1.35rem, 2.4vw, 1.85rem);
  color: var(--ink-hi);
  line-height: 1.2;
  white-space: nowrap;
}
.stat .num .unit { font-size: 0.62em; color: var(--lobster); margin-left: 2px; }
.stat .label { margin-top: 6px; font-size: 13px; color: var(--ink-dim); }

/* ---------- 声呐雷达 ---------- */
.sonar-wrap { position: relative; display: flex; justify-content: center; }
.sonar {
  position: relative;
  width: min(440px, 82vw);
  aspect-ratio: 1;
}
.sonar-ring {
  position: absolute; inset: 0;
  border-radius: 50%;
  border: 1px solid var(--line);
}
.sonar-ring.r2 { inset: 12.5%; border-color: var(--line-strong); }
.sonar-ring.r3 { inset: 25%; }
.sonar-ring.r4 { inset: 37.5%; }
.sonar-cross::before, .sonar-cross::after {
  content: '';
  position: absolute; inset: 0;
  margin: auto;
  background: var(--line);
}
.sonar-cross::before { width: 100%; height: 1px; }
.sonar-cross::after { width: 1px; height: 100%; }
.sonar-sweep {
  position: absolute; inset: 0;
  border-radius: 50%;
  background: conic-gradient(from 0deg, rgba(67, 232, 255, 0.30), rgba(67, 232, 255, 0.04) 72deg, transparent 74deg);
  -webkit-mask: radial-gradient(circle, transparent 0 11.5%, #000 12%);
  mask: radial-gradient(circle, transparent 0 11.5%, #000 12%);
  animation: sweep 7s linear infinite;
}
@keyframes sweep { to { transform: rotate(360deg); } }
.sonar-core {
  position: absolute; inset: 42%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(67, 232, 255, 0.5), rgba(61, 107, 255, 0.25) 62%, transparent);
  box-shadow: 0 0 42px rgba(67, 232, 255, 0.45);
  animation: core 3.4s ease-in-out infinite;
}
@keyframes core { 0%, 100% { transform: scale(1); } 50% { transform: scale(1.14); } }

.sonar-blip {
  position: absolute;
  display: flex; flex-direction: column; align-items: center; gap: 3px;
  transform: translate(-50%, -50%);
}
.sonar-blip .bdot {
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--lobster);
  box-shadow: 0 0 0 4px rgba(255, 77, 46, 0.18), 0 0 16px var(--lobster);
}
.sonar-blip .bdot::after {
  content: '';
  position: absolute; inset: -6px;
  border-radius: 50%;
  border: 1px solid rgba(255, 77, 46, 0.7);
  animation: ping 2.4s ease-out infinite;
}
@keyframes ping { 0% { transform: scale(0.5); opacity: 0.9; } 100% { transform: scale(2.1); opacity: 0; } }
.sonar-blip .btag {
  font-family: var(--mono); font-size: 11px; letter-spacing: 0.08em;
  color: var(--ink-hi);
  background: rgba(5, 11, 24, 0.82);
  border: 1px solid var(--line-strong);
  padding: 3px 10px; border-radius: 999px;
  white-space: nowrap;
}
.sonar-blip.b-cyan .bdot { background: var(--cyan); box-shadow: 0 0 0 4px rgba(67, 232, 255, 0.16), 0 0 16px var(--cyan); }
.sonar-blip.b-cyan .bdot::after { border-color: rgba(67, 232, 255, 0.6); }
.b1 { left: 22%; top: 27%; }
.b2 { left: 71%; top: 20%; }
.b3 { left: 78%; top: 62%; }
.b4 { left: 30%; top: 74%; }

.sonar-caption {
  position: absolute; left: 50%; bottom: -6px; transform: translateX(-50%);
  font-family: var(--mono); font-size: 11.5px; letter-spacing: 0.14em;
  color: var(--ink-dim); white-space: nowrap;
}

/* ---------- 关键词跑马灯 ---------- */
.marquee {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 20px 0;
  overflow: hidden;
  position: relative;
}
.marquee::before, .marquee::after {
  content: '';
  position: absolute; top: 0; bottom: 0; width: 120px; z-index: 2; pointer-events: none;
}
.marquee::before { left: 0; background: linear-gradient(90deg, var(--abyss-1), transparent); }
.marquee::after { right: 0; background: linear-gradient(-90deg, var(--abyss-1), transparent); }
.marquee-track {
  display: flex; gap: 56px; width: max-content;
  animation: marquee 30s linear infinite;
}
.marquee:hover .marquee-track { animation-play-state: paused; }
@keyframes marquee { to { transform: translateX(-50%); } }
.marquee-item {
  display: flex; align-items: center; gap: 14px;
  font-size: 15px; color: var(--ink-dim);
  white-space: nowrap;
  letter-spacing: 0.06em;
}
.marquee-item::before {
  content: '';
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--lobster);
  box-shadow: 0 0 10px var(--lobster);
}
.marquee-item:nth-child(odd)::before { background: var(--cyan); box-shadow: 0 0 10px var(--cyan); }

/* ---------- 服务卡片 ---------- */
.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.card {
  position: relative;
  padding: 34px 30px 30px;
  border-radius: var(--radius);
  background: var(--panel);
  border: 1px solid var(--line);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  overflow: hidden;
  transition: transform 0.32s ease, border-color 0.32s ease, box-shadow 0.32s ease;
}
.card::before {
  content: '';
  position: absolute; inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(140deg, rgba(255, 122, 69, 0.55), rgba(67, 232, 255, 0.4), transparent 55%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  mask-composite: exclude;
  opacity: 0;
  transition: opacity 0.32s ease;
  pointer-events: none;
}
.card::after {
  content: '';
  position: absolute; top: -40%; right: -30%;
  width: 260px; height: 260px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(61, 107, 255, 0.14), transparent 70%);
  transition: transform 0.5s ease;
  pointer-events: none;
}
.card:hover { transform: translateY(-6px); border-color: var(--line-strong); box-shadow: var(--shadow-card); }
.card:hover::before { opacity: 1; }
.card:hover::after { transform: translate(-20px, 16px) scale(1.15); }
.card-num {
  font-family: var(--display);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--ink-dim);
  display: flex; justify-content: space-between; align-items: center;
}
.card-num .corner { color: var(--lobster); }
.card-icon {
  width: 54px; height: 54px;
  margin: 24px 0 20px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 14px;
  background: rgba(67, 232, 255, 0.07);
  border: 1px solid var(--line);
  color: var(--cyan);
  transition: background 0.3s ease, color 0.3s ease;
}
.card-icon svg { width: 26px; height: 26px; }
.card:hover .card-icon { background: var(--cyan-glow); }
.card h3 { font-size: 19px; font-weight: 700; color: var(--ink-hi); margin-bottom: 10px; }
.card p { font-size: 14.5px; color: var(--ink-dim); }
.card-tags { margin-top: 18px; display: flex; flex-wrap: wrap; gap: 8px; }
.card-tags span {
  font-family: var(--mono); font-size: 11.5px;
  padding: 4px 11px;
  border-radius: 999px;
  border: 1px solid var(--line);
  color: var(--ink-dim);
  transition: color 0.25s ease, border-color 0.25s ease;
}
.card:hover .card-tags span { color: var(--ink); border-color: var(--line-strong); }
.card-link {
  margin-top: 22px;
  display: inline-flex; align-items: center; gap: 7px;
  font-size: 14px; color: var(--cyan);
  transition: gap 0.25s ease;
}
.card-link svg { width: 15px; height: 15px; }
.card-link:hover { gap: 12px; }

/* ---------- 龙虾获客引擎 焦点区 ---------- */
.lobster-section {
  background:
    radial-gradient(900px 460px at 18% 0%, rgba(255, 77, 46, 0.09), transparent 60%),
    radial-gradient(800px 500px at 92% 100%, rgba(67, 232, 255, 0.07), transparent 60%),
    var(--abyss-0);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}
.lobster-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.lobster-tag {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--mono); font-size: 12px; letter-spacing: 0.16em;
  color: var(--lobster-hi);
  border: 1px solid rgba(255, 77, 46, 0.35);
  background: rgba(255, 77, 46, 0.08);
  padding: 6px 14px; border-radius: 999px;
  margin-bottom: 20px;
}
.lobster-tag .pulse {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--lobster);
  animation: blink 1.6s ease-in-out infinite;
}
.lobster-section h2 {
  font-size: clamp(1.8rem, 3.6vw, 2.6rem);
  font-weight: 900; color: var(--ink-hi); line-height: 1.3;
}
.lobster-section h2 em {
  font-style: normal;
  background: var(--grad-lobster);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}
.lobster-desc { margin-top: 18px; color: var(--ink); font-size: 16px; max-width: 520px; }
.lobster-desc strong { color: var(--cyan); }

.lobster-features {
  margin-top: 34px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px 26px;
}
.lobster-feature {
  display: flex; gap: 12px; align-items: flex-start;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: rgba(8, 18, 38, 0.5);
  transition: border-color 0.25s ease, transform 0.25s ease;
}
.lobster-feature:hover { border-color: rgba(255, 77, 46, 0.4); transform: translateY(-2px); }
.lobster-feature svg { width: 19px; height: 19px; color: var(--lobster-hi); flex-shrink: 0; margin-top: 2px; }
.lobster-feature b { display: block; font-size: 14.5px; color: var(--ink-hi); font-weight: 600; }
.lobster-feature span { font-size: 12.5px; color: var(--ink-dim); }

/* 龙虾获客模拟面板 */
.lobster-panel {
  position: relative;
  border-radius: 22px;
  border: 1px solid var(--line-strong);
  background: linear-gradient(165deg, rgba(10, 20, 40, 0.92), rgba(5, 11, 24, 0.96));
  box-shadow: 0 40px 90px -30px rgba(2, 6, 15, 0.95), 0 0 0 1px rgba(67, 232, 255, 0.04);
  overflow: hidden;
}
.lobster-panel::before {
  content: '';
  position: absolute; inset: 0;
  background: repeating-linear-gradient(0deg, transparent 0 2px, rgba(67, 232, 255, 0.012) 2px 3px);
  pointer-events: none;
}
.panel-head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 15px 20px;
  border-bottom: 1px solid var(--line);
}
.panel-head .ph-title { display: flex; align-items: center; gap: 10px; font-size: 14px; font-weight: 700; color: var(--ink-hi); }
.panel-head .ph-title .mark { width: 26px; height: 26px; }
.panel-head .ph-status {
  display: flex; align-items: center; gap: 7px;
  font-family: var(--mono); font-size: 11px; color: var(--cyan); letter-spacing: 0.1em;
}
.panel-head .ph-status i {
  width: 7px; height: 7px; border-radius: 50%; background: var(--cyan);
  box-shadow: 0 0 10px var(--cyan);
  animation: blink 1.8s ease-in-out infinite;
}
.panel-body { padding: 18px 20px; display: flex; flex-direction: column; gap: 11px; }
.lead-row {
  display: flex; align-items: center; gap: 13px;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: rgba(12, 26, 56, 0.45);
  animation: leadIn 0.6s ease both;
}
.lead-row:nth-child(2) { animation-delay: 0.15s; }
.lead-row:nth-child(3) { animation-delay: 0.3s; }
@keyframes leadIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: none; } }
.lead-avatar {
  width: 38px; height: 38px; flex-shrink: 0;
  border-radius: 11px;
  display: flex; align-items: center; justify-content: center;
  font-size: 15px; font-weight: 800; color: #fff;
  background: var(--grad-lobster);
}
.lead-avatar.a2 { background: linear-gradient(135deg, #43e8ff, #3d6bff); }
.lead-avatar.a3 { background: linear-gradient(135deg, #7a5cff, #3d6bff); }
.lead-info { flex: 1; min-width: 0; }
.lead-info b { display: block; font-size: 13.5px; color: var(--ink-hi); font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.lead-info span { font-size: 12px; color: var(--ink-dim); }
.lead-score {
  flex-shrink: 0;
  font-family: var(--mono); font-size: 11px;
  color: var(--lobster-hi);
  border: 1px solid rgba(255, 77, 46, 0.4);
  background: rgba(255, 77, 46, 0.08);
  border-radius: 999px;
  padding: 3px 10px;
}
.lead-score.hot { color: #ffd24a; border-color: rgba(255, 210, 74, 0.4); background: rgba(255, 210, 74, 0.08); }
.panel-foot {
  padding: 13px 20px;
  border-top: 1px solid var(--line);
  display: flex; justify-content: space-between; align-items: center;
  font-family: var(--mono); font-size: 11.5px; color: var(--ink-dim);
}
.panel-foot .live b { color: var(--cyan); font-weight: 400; }

/* 获客流程 */
.flow-row { margin-top: 44px; display: grid; grid-template-columns: repeat(4, 1fr); gap: 0; position: relative; }
.flow-step { position: relative; text-align: center; padding: 0 18px; }
.flow-step:not(:last-child)::after {
  content: '';
  position: absolute; top: 21px; left: calc(50% + 30px); right: calc(-50% + 30px);
  height: 1px;
  background: repeating-linear-gradient(90deg, var(--line-strong) 0 6px, transparent 6px 12px);
}
.flow-dot {
  width: 44px; height: 44px; margin: 0 auto 14px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--display); font-size: 13px;
  color: var(--cyan);
  border: 1px solid var(--line-strong);
  background: var(--abyss-2);
  box-shadow: 0 0 0 6px rgba(67, 232, 255, 0.05);
}
.flow-step b { display: block; font-size: 15.5px; color: var(--ink-hi); font-weight: 700; }
.flow-step span { display: block; margin-top: 5px; font-size: 12.5px; color: var(--ink-dim); }

/* ---------- 为什么选玥通 ---------- */
.why-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.why-card {
  padding: 30px 26px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--panel);
  transition: transform 0.3s ease, border-color 0.3s ease;
}
.why-card:hover { transform: translateY(-5px); border-color: rgba(67, 232, 255, 0.4); }
.why-icon {
  width: 46px; height: 46px;
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(67, 232, 255, 0.07);
  border: 1px solid var(--line);
  color: var(--cyan);
  margin-bottom: 18px;
}
.why-icon svg { width: 23px; height: 23px; }
.why-card h3 { font-size: 17px; font-weight: 700; color: var(--ink-hi); margin-bottom: 9px; }
.why-card p { font-size: 13.5px; color: var(--ink-dim); }

/* ---------- 适用场景 ---------- */
.scene-wrap { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; }
.scene-chip {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 13px 26px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  background: var(--panel);
  font-size: 15px; color: var(--ink);
  transition: border-color 0.28s ease, color 0.28s ease, background 0.28s ease, transform 0.28s ease, box-shadow 0.28s ease;
}
.scene-chip svg { width: 17px; height: 17px; color: var(--cyan); }
.scene-chip:hover {
  border-color: var(--lobster);
  color: var(--ink-hi);
  background: rgba(255, 77, 46, 0.08);
  transform: translateY(-3px);
  box-shadow: 0 12px 30px -12px var(--lobster-glow);
}

/* ---------- FAQ ---------- */
.faq-wrap { max-width: 780px; margin-inline: auto; display: flex; flex-direction: column; gap: 14px; }
.faq-item {
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  background: var(--panel);
  overflow: hidden;
  transition: border-color 0.3s ease;
}
.faq-item[open] { border-color: rgba(67, 232, 255, 0.4); }
.faq-item summary {
  list-style: none;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 20px 24px;
  cursor: pointer;
  font-size: 16px; font-weight: 600; color: var(--ink-hi);
  transition: color 0.25s ease;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary:hover { color: var(--cyan); }
.faq-icon {
  flex-shrink: 0;
  width: 26px; height: 26px;
  border-radius: 50%;
  border: 1px solid var(--line-strong);
  display: flex; align-items: center; justify-content: center;
  color: var(--cyan);
  transition: transform 0.3s ease, background 0.3s ease;
}
.faq-icon svg { width: 12px; height: 12px; }
.faq-item[open] .faq-icon { transform: rotate(45deg); background: var(--cyan-glow); }
.faq-answer { padding: 0 24px 22px; font-size: 14.5px; color: var(--ink-dim); }
.faq-answer strong { color: var(--ink); }

/* ---------- CTA 横幅 ---------- */
.cta-banner {
  position: relative;
  border-radius: 26px;
  overflow: hidden;
  padding: 72px 60px;
  text-align: center;
  border: 1px solid rgba(255, 77, 46, 0.35);
  background:
    radial-gradient(700px 380px at 50% -60%, rgba(255, 77, 46, 0.22), transparent 70%),
    radial-gradient(600px 320px at 88% 120%, rgba(67, 232, 255, 0.13), transparent 70%),
    linear-gradient(160deg, #0c1a38 0%, #071022 100%);
}
.cta-banner::before {
  content: '';
  position: absolute; inset: 0;
  background-image: url('../assets/contours.svg');
  background-size: cover;
  opacity: 0.5;
  pointer-events: none;
}
.cta-banner h2 {
  position: relative;
  font-size: clamp(1.7rem, 3.4vw, 2.4rem);
  font-weight: 900;
  color: var(--ink-hi);
  line-height: 1.35;
}
.cta-banner h2 em {
  font-style: normal;
  background: var(--grad-lobster);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}
.cta-banner p { position: relative; margin-top: 14px; color: var(--ink); font-size: 15.5px; }
.cta-banner .btn { position: relative; margin-top: 34px; }

/* ---------- 页脚 ---------- */
.footer {
  border-top: 1px solid var(--line);
  background:
    radial-gradient(700px 300px at 50% 130%, rgba(61, 107, 255, 0.08), transparent 70%),
    var(--abyss-0);
  padding: 76px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 44px;
  padding-bottom: 56px;
}
.footer-brand p { margin-top: 16px; font-size: 13.5px; color: var(--ink-dim); max-width: 300px; }
.footer h3 {
  font-size: 14px; font-weight: 700; color: var(--ink-hi);
  letter-spacing: 0.08em;
  margin-bottom: 20px;
  display: flex; align-items: center; gap: 10px;
}
.footer h3::before { content: ''; width: 16px; height: 2px; background: var(--grad-lobster); border-radius: 2px; }
.footer-links { display: flex; flex-direction: column; gap: 12px; }
.footer-links a { font-size: 14px; color: var(--ink-dim); transition: color 0.25s ease, padding-left 0.25s ease; }
.footer-links a:hover { color: var(--cyan); padding-left: 5px; }
.footer-contact { display: flex; flex-direction: column; gap: 13px; }
.footer-contact li { display: flex; gap: 11px; align-items: flex-start; font-size: 13.5px; color: var(--ink-dim); }
.footer-contact svg { width: 16px; height: 16px; color: var(--cyan); flex-shrink: 0; margin-top: 4px; }
.footer-bottom {
  border-top: 1px solid var(--line);
  padding: 22px 0 26px;
  display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  font-size: 12.5px; color: var(--ink-dim);
}
.footer-bottom a { color: var(--ink-dim); transition: color 0.25s ease; }
.footer-bottom a:hover { color: var(--cyan); }
.footer-icp { display: flex; gap: 20px; align-items: center; }

/* ---------- 内页 ---------- */
.page-hero {
  position: relative;
  padding: calc(var(--nav-h) + 76px) 0 64px;
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}
.page-hero::before {
  content: '';
  position: absolute; inset: 0; pointer-events: none;
  background:
    url('../assets/contours.svg') center / cover no-repeat,
    radial-gradient(700px 340px at 82% -30%, rgba(61, 107, 255, 0.14), transparent 70%);
  opacity: 0.55;
}
.page-hero .container { position: relative; }
.page-hero h1 {
  font-size: clamp(1.9rem, 4vw, 2.7rem);
  font-weight: 900; color: var(--ink-hi); line-height: 1.3;
}
.page-hero h1 em {
  font-style: normal;
  background: var(--grad-text);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}
.page-hero p { margin-top: 14px; max-width: 640px; color: var(--ink); font-size: 15.5px; }
.crumbs {
  margin-top: 22px;
  display: flex; align-items: center; gap: 9px;
  font-family: var(--mono); font-size: 12px; color: var(--ink-dim); letter-spacing: 0.06em;
}
.crumbs a:hover { color: var(--cyan); }
.crumbs .sep { color: var(--line-strong); }

/* 服务详情 */
.service-row {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 56px;
  align-items: start;
  padding: 64px 0;
  border-bottom: 1px solid var(--line);
  scroll-margin-top: calc(var(--nav-h) + 20px);
}
.service-row:last-child { border-bottom: none; }
.service-sticky { position: sticky; top: calc(var(--nav-h) + 30px); }
.service-ic {
  width: 62px; height: 62px;
  border-radius: 16px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(67, 232, 255, 0.07);
  border: 1px solid var(--line-strong);
  color: var(--cyan);
  margin-bottom: 22px;
}
.service-ic svg { width: 30px; height: 30px; }
.service-row h2 { font-size: clamp(1.5rem, 2.8vw, 2.05rem); font-weight: 800; color: var(--ink-hi); line-height: 1.35; }
.service-row .s-tag {
  display: inline-block;
  font-family: var(--mono); font-size: 11.5px; letter-spacing: 0.14em;
  color: var(--lobster-hi);
  border: 1px solid rgba(255, 77, 46, 0.35);
  background: rgba(255, 77, 46, 0.08);
  border-radius: 999px;
  padding: 5px 13px;
  margin-bottom: 16px;
}
.service-body > p { margin-top: 16px; color: var(--ink); font-size: 15.5px; }
.s-check { margin-top: 26px; display: grid; grid-template-columns: 1fr 1fr; gap: 13px 22px; }
.s-check li { display: flex; gap: 10px; align-items: flex-start; font-size: 14.5px; color: var(--ink); }
.s-check svg { width: 17px; height: 17px; color: var(--cyan); flex-shrink: 0; margin-top: 4px; }
.s-check li b { color: var(--ink-hi); font-weight: 600; }
.service-quote {
  margin-top: 30px;
  padding: 20px 24px;
  border-left: 3px solid var(--lobster);
  background: rgba(255, 77, 46, 0.05);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 14px;
  color: var(--ink);
}
.service-quote b { color: var(--lobster-hi); }

/* 关于页 */
.about-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.about-grid p { margin-top: 16px; font-size: 15.5px; color: var(--ink); }
.about-grid p strong { color: var(--cyan); }
.about-visual {
  position: relative;
  border-radius: 26px;
  border: 1px solid var(--line-strong);
  background:
    radial-gradient(420px 300px at 70% 20%, rgba(255, 77, 46, 0.1), transparent 70%),
    radial-gradient(400px 280px at 20% 85%, rgba(67, 232, 255, 0.09), transparent 70%),
    var(--abyss-2);
  padding: 44px 40px;
  display: flex; flex-direction: column; gap: 20px;
  overflow: hidden;
}
.about-visual::before {
  content: '';
  position: absolute; inset: 0;
  background-image: url('../assets/contours.svg');
  background-size: cover;
  opacity: 0.4;
}
.a-words { position: relative; }
.a-words b {
  display: block;
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  font-weight: 900; color: var(--ink-hi); line-height: 1.4;
}
.a-words b em { font-style: normal; color: var(--lobster-hi); }
.a-words span { display: block; margin-top: 10px; font-family: var(--mono); font-size: 12px; letter-spacing: 0.16em; color: var(--ink-dim); }
.a-line { position: relative; height: 1px; background: var(--line); }
.values-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.value-card {
  padding: 30px 26px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--panel);
  text-align: center;
  transition: transform 0.3s ease, border-color 0.3s ease;
}
.value-card:hover { transform: translateY(-5px); border-color: rgba(255, 77, 46, 0.4); }
.value-card .v-num { font-family: var(--display); font-size: 13px; color: var(--lobster); letter-spacing: 0.2em; }
.value-card h3 { margin: 14px 0 8px; font-size: 18px; color: var(--ink-hi); font-weight: 700; }
.value-card p { font-size: 13.5px; color: var(--ink-dim); }

/* 联系页 */
.contact-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 48px; align-items: start; }
.contact-cards { display: flex; flex-direction: column; gap: 16px; }
.contact-card {
  display: flex; gap: 16px; align-items: flex-start;
  padding: 22px 24px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: var(--panel);
  transition: border-color 0.28s ease, transform 0.28s ease;
}
.contact-card:hover { border-color: rgba(67, 232, 255, 0.4); transform: translateY(-3px); }
.contact-card .c-ic {
  width: 46px; height: 46px; flex-shrink: 0;
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(67, 232, 255, 0.07);
  border: 1px solid var(--line);
  color: var(--cyan);
}
.contact-card .c-ic svg { width: 22px; height: 22px; }
.contact-card b { display: block; font-size: 14px; color: var(--ink-hi); font-weight: 600; margin-bottom: 3px; }
.contact-card span { font-size: 14.5px; color: var(--ink); font-family: var(--mono); letter-spacing: 0.02em; }
.contact-card small { display: block; margin-top: 4px; font-size: 12px; color: var(--ink-dim); }

.form-panel {
  padding: 38px 36px;
  border-radius: 22px;
  border: 1px solid var(--line-strong);
  background: linear-gradient(165deg, rgba(10, 20, 40, 0.9), rgba(5, 11, 24, 0.96));
  box-shadow: var(--shadow-card);
}
.form-panel h3 { font-size: 20px; font-weight: 800; color: var(--ink-hi); margin-bottom: 6px; }
.form-panel .fp-sub { font-size: 13.5px; color: var(--ink-dim); margin-bottom: 28px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { display: flex; flex-direction: column; gap: 8px; }
.field.full { grid-column: 1 / -1; }
.field label { font-size: 13px; color: var(--ink); font-weight: 500; }
.field label .req { color: var(--lobster); }
.field input, .field select, .field textarea {
  font: inherit;
  font-size: 14.5px;
  color: var(--ink-hi);
  padding: 13px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line-strong);
  background: rgba(4, 9, 20, 0.6);
  outline: none;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
  width: 100%;
}
.field textarea { resize: vertical; min-height: 110px; }
.field input:focus, .field select:focus, .field textarea:focus {
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px rgba(67, 232, 255, 0.12);
}
.field select { appearance: none; -webkit-appearance: none; }
.field select option { background: var(--abyss-2); }
.form-foot { margin-top: 24px; display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.form-hint { font-size: 12px; color: var(--ink-dim); }
.form-success {
  display: none;
  margin-top: 18px;
  padding: 14px 18px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(67, 232, 255, 0.4);
  background: rgba(67, 232, 255, 0.06);
  font-size: 14px; color: var(--cyan);
}
.form-success.show { display: block; animation: leadIn 0.4s ease both; }
.form-success.error { color: var(--lobster-hi); border-color: rgba(255, 77, 46, 0.4); background: rgba(255, 77, 46, 0.06); }

/* 隐私同意勾选 */
.consent { margin-top: 0; }
.consent-label {
  display: flex; gap: 10px; align-items: flex-start;
  font-size: 13px; color: var(--ink-dim); line-height: 1.7;
  cursor: pointer;
}
.consent-label input {
  width: 16px !important; height: 16px; flex-shrink: 0; margin-top: 4px;
  accent-color: var(--cyan);
  cursor: pointer;
}
.consent-label a { color: var(--cyan); text-decoration: underline; text-underline-offset: 3px; }
.consent-label a:hover { color: var(--ink-hi); }

/* 键盘焦点可见性 */
:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 4px;
}
.btn:focus-visible, .card:focus-visible, .card-link:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
}
.nav-links a:focus-visible { outline-offset: 6px; }

/* 404 */
.p404 { min-height: 72vh; display: flex; align-items: center; justify-content: center; text-align: center; padding: calc(var(--nav-h) + 40px) 0 80px; }
.p404 .code {
  font-family: var(--display);
  font-size: clamp(4.6rem, 14vw, 9rem);
  line-height: 1;
  background: var(--grad-text);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
  filter: drop-shadow(0 0 40px rgba(67, 232, 255, 0.25));
}
.p404 h1 { margin-top: 18px; font-size: 22px; font-weight: 800; color: var(--ink-hi); }
.p404 p { margin-top: 10px; color: var(--ink-dim); }
.p404 .sonar { margin: 40px auto 0; width: 200px; opacity: 0.8; }
.p404 .btn { margin-top: 40px; }

/* ---------- 动效入场 ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.in { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: 0.08s; }
.reveal.d2 { transition-delay: 0.16s; }
.reveal.d3 { transition-delay: 0.24s; }
.reveal.d4 { transition-delay: 0.32s; }

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .cards-grid { grid-template-columns: repeat(2, 1fr); }
  .why-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .hero-grid { grid-template-columns: 1fr; gap: 60px; }
  .sonar-wrap { order: -1; }
  .hero { padding-top: calc(var(--nav-h) + 56px); }
  .lobster-grid { grid-template-columns: 1fr; gap: 44px; }
  .about-grid { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .section { padding: 76px 0; }
  .nav-links {
    position: fixed; inset: 0;
    flex-direction: column; justify-content: center; gap: 30px;
    background: rgba(3, 7, 16, 0.96);
    -webkit-backdrop-filter: blur(18px);
    backdrop-filter: blur(18px);
    opacity: 0; pointer-events: none;
    transition: opacity 0.3s ease;
    z-index: 105;
  }
  .nav-links.open { opacity: 1; pointer-events: auto; }
  .nav-links a { font-size: 20px; }
  .nav-toggle { display: block; }
  .nav-cta .btn { display: none; }
  .hero-stats { grid-template-columns: repeat(2, 1fr); gap: 20px 12px; }
  .cards-grid { grid-template-columns: 1fr; }
  .why-grid { grid-template-columns: 1fr; }
  .lobster-features { grid-template-columns: 1fr; }
  .flow-row { grid-template-columns: 1fr 1fr; gap: 34px 0; }
  .flow-step:not(:last-child)::after { display: none; }
  .service-row { grid-template-columns: 1fr; gap: 32px; padding: 48px 0; }
  .service-sticky { position: static; }
  .s-check { grid-template-columns: 1fr; }
  .values-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 36px; }
  .cta-banner { padding: 52px 28px; }
  .form-grid { grid-template-columns: 1fr; }
  .form-panel { padding: 28px 22px; }
  .sonar-blip .btag { font-size: 10px; }
}
@media (max-width: 480px) {
  .hero-actions .btn { width: 100%; }
  .sonar { width: 92vw; }
  .sonar-blip .btag { display: none; }
}

/* ---------- 无障碍 ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
}