/* ==========================================================================
   冀平 · 外贸获客顾问 — 设计系统
   ========================================================================== */

:root {
  --bg: #070a14;
  --bg-2: #0a0e1c;
  --bg-3: #0d1226;
  --surface: rgba(255, 255, 255, 0.038);
  --surface-2: rgba(255, 255, 255, 0.062);
  --surface-3: rgba(255, 255, 255, 0.09);
  --border: rgba(255, 255, 255, 0.085);
  --border-2: rgba(255, 255, 255, 0.15);
  --text: #e9edf7;
  --text-2: #b9c4da;
  --muted: #8b9ab8;
  --dim: #6b7a96;

  --primary: #6366f1;
  --primary-2: #4f46e5;
  --cyan: #06b6d4;
  --cyan-2: #22d3ee;
  --violet: #a855f7;
  --accent: #fb923c;
  --accent-2: #f97316;

  --grad: linear-gradient(115deg, #6366f1 0%, #06b6d4 55%, #22d3ee 100%);
  --grad-soft: linear-gradient(115deg, rgba(99, 102, 241, 0.22), rgba(6, 182, 212, 0.16));
  --grad-warm: linear-gradient(115deg, #f97316, #fb7185);
  --grad-text: linear-gradient(100deg, #a5b4fc 0%, #67e8f9 48%, #22d3ee 100%);

  --radius: 22px;
  --radius-sm: 14px;
  --radius-xs: 10px;
  --shadow: 0 26px 70px -28px rgba(0, 0, 0, 0.85);
  --shadow-sm: 0 12px 30px -14px rgba(0, 0, 0, 0.7);
  --glow: 0 20px 60px -22px rgba(99, 102, 241, 0.6);

  --maxw: 1220px;
  --maxw-narrow: 820px;
  --header-h: 74px;

  --font: 'Inter', 'Noto Sans SC', -apple-system, BlinkMacSystemFont, 'Segoe UI',
    'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', sans-serif;
  --mono: 'JetBrains Mono', 'SFMono-Regular', Consolas, monospace;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.72;
  font-size: 16px;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
ul, ol { list-style: none; }
input, textarea, select { font: inherit; color: inherit; }

::selection { background: rgba(99, 102, 241, 0.42); color: #fff; }

.ico { width: 20px; height: 20px; flex: 0 0 auto; }
.ico-sm { width: 16px; height: 16px; }
.ico-xs { width: 14px; height: 14px; }
.ico.flip { transform: rotate(180deg); }

/* ---------- 背景层 ---------- */
.bg-layer { position: fixed; inset: 0; z-index: 0; pointer-events: none; overflow: hidden; }
.bg-grid {
  position: absolute; inset: -2px;
  background-image: linear-gradient(rgba(255,255,255,.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.028) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 100% 60% at 50% 0%, #000 20%, transparent 78%);
  -webkit-mask-image: radial-gradient(ellipse 100% 60% at 50% 0%, #000 20%, transparent 78%);
}
.bg-glow { position: absolute; border-radius: 50%; filter: blur(110px); opacity: .5; }
.bg-glow-1 { width: 62vw; height: 62vw; top: -24vw; left: -14vw; background: radial-gradient(circle, rgba(99,102,241,.55), transparent 66%); animation: drift1 26s ease-in-out infinite; }
.bg-glow-2 { width: 54vw; height: 54vw; top: 34vh; right: -20vw; background: radial-gradient(circle, rgba(6,182,212,.4), transparent 66%); animation: drift2 32s ease-in-out infinite; }
.bg-noise {
  position: absolute; inset: 0; opacity: .22; mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)' opacity='.42'/%3E%3C/svg%3E");
}
@keyframes drift1 { 0%,100% { transform: translate3d(0,0,0) scale(1); } 50% { transform: translate3d(6vw,4vh,0) scale(1.12); } }
@keyframes drift2 { 0%,100% { transform: translate3d(0,0,0) scale(1); } 50% { transform: translate3d(-5vw,-5vh,0) scale(1.15); } }

/* ---------- 布局 ---------- */
.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 26px; position: relative; z-index: 1; }
.container.narrow { max-width: var(--maxw-narrow); }
main { position: relative; z-index: 1; }

.skip-link { position: absolute; left: -9999px; top: 0; z-index: 999; background: var(--primary); color: #fff; padding: 10px 18px; border-radius: 0 0 10px 0; }
.skip-link:focus { left: 0; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  padding: 13px 24px; border-radius: 100px; font-weight: 650; font-size: 15px;
  letter-spacing: .01em; white-space: nowrap; position: relative; overflow: hidden;
  transition: transform .28s cubic-bezier(.34,1.4,.5,1), box-shadow .3s, background .3s, border-color .3s, color .3s;
  will-change: transform;
}
.btn-sm { padding: 9px 17px; font-size: 13.5px; }
.btn-lg { padding: 16px 30px; font-size: 16px; }
.btn-block { width: 100%; }

.btn-primary { background: var(--grad); color: #04070f; font-weight: 750; box-shadow: var(--glow); }
.btn-primary::after {
  content: ''; position: absolute; inset: 0; background: linear-gradient(120deg, transparent 20%, rgba(255,255,255,.5), transparent 80%);
  transform: translateX(-130%); transition: transform .7s ease;
}
.btn-primary:hover::after { transform: translateX(130%); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 26px 66px -20px rgba(34, 211, 238, 0.75); }

.btn-ghost { background: var(--surface); border: 1px solid var(--border-2); color: var(--text); backdrop-filter: blur(12px); }
.btn-ghost:hover { background: var(--surface-2); border-color: rgba(103, 232, 249, .5); transform: translateY(-2px); }

.btn:active { transform: translateY(0) scale(.985); }

/* ---------- 滚动条 ---------- */
.scroll-progress {
  position: fixed; top: 0; left: 0; height: 2px; width: 0;
  background: var(--grad); z-index: 200; box-shadow: 0 0 14px rgba(34,211,238,.85);
  transition: width .1s linear;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 120;
  transition: background .35s, border-color .35s, box-shadow .35s, backdrop-filter .35s;
  border-bottom: 1px solid transparent;
}
.site-header.is-stuck {
  background: rgba(7, 10, 20, 0.78); backdrop-filter: blur(20px) saturate(160%);
  border-bottom-color: var(--border); box-shadow: 0 12px 40px -22px rgba(0,0,0,.9);
}
.header-inner { display: flex; align-items: center; gap: 22px; height: var(--header-h); }
.brand { display: flex; align-items: center; gap: 11px; flex: 0 0 auto; }
.brand-mark {
  width: 40px; height: 40px; border-radius: 12px; display: grid; place-items: center;
  background: var(--grad); color: #04070f; font-weight: 900; font-size: 16px; letter-spacing: -.02em;
  box-shadow: 0 10px 26px -12px rgba(34,211,238,.8);
}
.brand-text { display: flex; flex-direction: column; line-height: 1.16; }
.brand-text strong { font-size: 15.5px; font-weight: 800; letter-spacing: .01em; }
.brand-text em { font-style: normal; font-size: 11.5px; color: var(--muted); letter-spacing: .06em; text-transform: uppercase; }

.main-nav { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.nav-link {
  padding: 9px 14px; border-radius: 10px; font-size: 14.5px; font-weight: 520; color: var(--text-2);
  position: relative; transition: color .25s, background .25s;
}
.nav-link::after {
  content: ''; position: absolute; left: 14px; right: 14px; bottom: 5px; height: 1.5px;
  background: var(--grad); transform: scaleX(0); transform-origin: left; transition: transform .35s cubic-bezier(.4,0,.2,1);
}
.nav-link:hover { color: #fff; background: var(--surface); }
.nav-link:hover::after, .nav-link.is-active::after { transform: scaleX(1); }
.nav-link.is-active { color: #fff; }

.header-actions { display: flex; align-items: center; gap: 10px; flex: 0 0 auto; }
.lang-switch {
  display: inline-flex; align-items: center; gap: 6px; padding: 8px 13px; border-radius: 100px;
  border: 1px solid var(--border); background: var(--surface); font-size: 13px; color: var(--text-2);
  transition: all .25s;
}
.lang-switch:hover { color: #fff; border-color: rgba(103,232,249,.5); background: var(--surface-2); }
.lang-switch .ico { width: 15px; height: 15px; }

.menu-toggle { display: none; width: 42px; height: 42px; border-radius: 12px; border: 1px solid var(--border); background: var(--surface); place-items: center; }
.menu-toggle .menu-icon-close { display: none; }
.menu-toggle.is-open .menu-icon { display: none; }
.menu-toggle.is-open .menu-icon-close { display: block; }
.menu-toggle svg { width: 20px; height: 20px; }

/* ---------- Hero ---------- */
.hero { position: relative; padding: 84px 0 90px; overflow: hidden; min-height: 88vh; display: flex; align-items: center; }
.hero-canvas { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 0; opacity: .85; }
.hero-spotlight {
  position: absolute; width: 620px; height: 620px; border-radius: 50%; pointer-events: none; z-index: 1;
  background: radial-gradient(circle, rgba(99,102,241,.22), transparent 62%);
  left: 0; top: 0; transform: translate(-50%,-50%); transition: opacity .4s;
}
.hero-inner { display: grid; grid-template-columns: 1.08fr .92fr; gap: 60px; align-items: center; }

.hero-badge {
  display: inline-flex; align-items: center; gap: 9px; padding: 8px 16px 8px 12px; border-radius: 100px;
  background: var(--surface); border: 1px solid var(--border-2); font-size: 13px; color: var(--text-2);
  backdrop-filter: blur(10px); margin-bottom: 26px;
}
.pulse-dot { width: 7px; height: 7px; border-radius: 50%; background: #34d399; box-shadow: 0 0 0 0 rgba(52,211,153,.7); animation: pulse 2.1s infinite; }
@keyframes pulse { 0% { box-shadow: 0 0 0 0 rgba(52,211,153,.65); } 70% { box-shadow: 0 0 0 11px rgba(52,211,153,0); } 100% { box-shadow: 0 0 0 0 rgba(52,211,153,0); } }

.hero-title { font-size: clamp(2.15rem, 4.7vw, 3.85rem); line-height: 1.16; font-weight: 900; letter-spacing: -.028em; }
.hero-title .line { display: block; }
.hero-title .grad, .grad-text {
  background: var(--grad-text); -webkit-background-clip: text; background-clip: text; color: transparent;
}
.rotating { min-height: 1.22em; }
.rotator { position: relative; display: inline-block; height: 1.22em; overflow: hidden; vertical-align: bottom; }
.rotator em {
  font-style: normal; display: block; white-space: nowrap;
  background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent;
  opacity: 0; transform: translateY(102%); position: absolute; inset: 0;
}
.rotator em.is-on { opacity: 1; transform: translateY(0); position: relative; animation: rotIn .7s cubic-bezier(.22,1,.36,1); }
@keyframes rotIn { from { opacity: 0; transform: translateY(102%); } to { opacity: 1; transform: translateY(0); } }

.hero-desc { margin-top: 24px; font-size: 17px; color: var(--text-2); max-width: 560px; }
.hero-actions { display: flex; gap: 14px; margin-top: 34px; flex-wrap: wrap; }
.hero-points { display: flex; flex-direction: column; gap: 10px; margin-top: 32px; }
.hero-points li { display: flex; align-items: center; gap: 10px; font-size: 14.5px; color: var(--text-2); }
.hero-points .ico { color: var(--cyan-2); }

/* hero 视觉 */
.hero-visual { position: relative; height: 470px; }
.hv-card {
  background: rgba(13, 18, 38, 0.72); border: 1px solid var(--border-2); border-radius: var(--radius);
  backdrop-filter: blur(22px) saturate(150%); box-shadow: var(--shadow);
}
.hv-main { position: absolute; inset: 0 12px 46px 0; padding: 18px; display: flex; flex-direction: column; }
.hv-head { display: flex; align-items: center; gap: 7px; padding-bottom: 14px; border-bottom: 1px solid var(--border); }
.hv-dot { width: 9px; height: 9px; border-radius: 50%; background: var(--surface-3); }
.hv-dot:nth-child(1) { background: #ff5f57; } .hv-dot:nth-child(2) { background: #febc2e; } .hv-dot:nth-child(3) { background: #28c840; }
.hv-head em { font-style: normal; font-size: 12px; color: var(--muted); margin-left: 8px; letter-spacing: .04em; }
.hv-timeline { display: flex; flex-direction: column; gap: 10px; margin-top: 16px; }
.hv-item {
  display: flex; gap: 12px; align-items: flex-start; padding: 12px 14px; border-radius: var(--radius-sm);
  background: var(--surface); border: 1px solid var(--border); opacity: 0; transform: translateX(-14px);
  animation: hvIn .6s cubic-bezier(.22,1,.36,1) forwards;
}
.hv-item:nth-child(1) { animation-delay: .5s; } .hv-item:nth-child(2) { animation-delay: .95s; }
.hv-item:nth-child(3) { animation-delay: 1.4s; } .hv-item:nth-child(4) { animation-delay: 1.85s; }
@keyframes hvIn { to { opacity: 1; transform: translateX(0); } }
.hv-item i { width: 30px; height: 30px; border-radius: 9px; display: grid; place-items: center; flex: 0 0 auto; background: var(--surface-2); }
.hv-item i svg { width: 15px; height: 15px; }
.hv-item b { display: block; font-size: 13px; font-weight: 700; }
.hv-item span { font-size: 12.5px; color: var(--muted); }
.t-wa { color: #25d366; } .t-site { color: var(--cyan-2); } .t-mail { color: #f59e0b; } .t-fb { color: #818cf8; }

.hv-chip {
  position: absolute; padding: 14px 18px; display: flex; flex-direction: column; gap: 2px;
  animation: float 6s ease-in-out infinite;
}
.hv-chip b { font-size: 24px; font-weight: 900; background: var(--grad-text); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hv-chip span { font-size: 11.5px; color: var(--muted); white-space: nowrap; }
.hv-chip-1 { right: -18px; top: 30px; animation-delay: .2s; }
.hv-chip-2 { left: -26px; bottom: -10px; animation-delay: 1.4s; }
@keyframes float { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-11px); } }

.hero-scroll { position: absolute; bottom: 26px; left: 50%; transform: translateX(-50%); display: flex; flex-direction: column; align-items: center; gap: 8px; z-index: 2; }
.hero-scroll span { font-size: 11.5px; color: var(--dim); letter-spacing: .12em; text-transform: uppercase; }
.hero-scroll i { width: 1px; height: 34px; background: linear-gradient(var(--cyan-2), transparent); position: relative; overflow: hidden; }
.hero-scroll i::after { content: ''; position: absolute; top: -34px; left: 0; width: 1px; height: 34px; background: #fff; animation: scrollLine 2s ease-in-out infinite; }
@keyframes scrollLine { 0% { top: -34px; } 100% { top: 34px; } }

/* ---------- Logo 条 ---------- */
.logo-strip { padding: 34px 0 54px; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.logo-strip-title { text-align: center; font-size: 13.5px; color: var(--muted); margin-bottom: 26px; letter-spacing: .02em; }
.marquee { overflow: hidden; mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent); -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent); }
.marquee-track { display: flex; gap: 16px; width: max-content; animation: marquee 42s linear infinite; }
.marquee:hover .marquee-track { animation-play-state: paused; }
@keyframes marquee { to { transform: translateX(-50%); } }
.logo-pill {
  padding: 12px 26px; border-radius: 100px; border: 1px solid var(--border); background: var(--surface);
  font-size: 14.5px; font-weight: 600; color: var(--text-2); white-space: nowrap; transition: all .3s;
}
.logo-pill:hover { color: #fff; border-color: rgba(103,232,249,.42); background: var(--surface-2); }

/* ---------- 通用 section ---------- */
section { position: relative; }
.stats-section, .services-section, .why-section, .process-section, .cases-section, .blog-section, .faq-section,
.others-section, .testi-section, .svc-problems, .svc-features, .svc-deliver, .case-detail, .about-story, .contact-section { padding: 92px 0; }

.section-head { max-width: 760px; margin: 0 auto 54px; }
.section-head.align { text-align: center; margin-left: auto; margin-right: auto; }
.section-head h2 { font-size: clamp(1.7rem, 3.1vw, 2.5rem); font-weight: 880; line-height: 1.22; letter-spacing: -.022em; margin-top: 16px; }
.section-desc { margin-top: 18px; color: var(--text-2); font-size: 16.5px; }
.section-more { text-align: center; margin-top: 44px; }

.kicker {
  display: inline-flex; align-items: center; gap: 8px; font-size: 12.5px; font-weight: 700;
  letter-spacing: .13em; text-transform: uppercase; color: var(--cyan-2);
  padding: 6px 14px; border-radius: 100px; background: rgba(6,182,212,.09); border: 1px solid rgba(6,182,212,.24);
}
.kicker .ico { width: 14px; height: 14px; }

/* ---------- 数据 ---------- */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.stat-card {
  padding: 30px 24px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--border);
  text-align: center; transition: all .35s; position: relative; overflow: hidden;
}
.stat-card::before { content: ''; position: absolute; top: 0; left: 20%; right: 20%; height: 1px; background: var(--grad); opacity: .7; }
.stat-card:hover { transform: translateY(-5px); border-color: var(--border-2); background: var(--surface-2); box-shadow: var(--shadow-sm); }
.stat-card b { display: block; font-size: clamp(2rem, 3.6vw, 2.9rem); font-weight: 900; letter-spacing: -.03em; background: var(--grad-text); -webkit-background-clip: text; background-clip: text; color: transparent; }
.stat-card span { display: block; margin-top: 8px; font-size: 13.5px; color: var(--muted); }
.stats-note { text-align: center; margin-top: 24px; font-size: 12.5px; color: var(--dim); }

/* ---------- 服务卡 ---------- */
.service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.service-card {
  position: relative; padding: 30px 26px 26px; border-radius: var(--radius);
  background: var(--surface); border: 1px solid var(--border); overflow: hidden;
  transition: transform .4s cubic-bezier(.2,.8,.3,1), border-color .35s, background .35s, box-shadow .4s;
  transform-style: preserve-3d;
}
.sc-glow {
  position: absolute; width: 260px; height: 260px; border-radius: 50%; pointer-events: none;
  background: radial-gradient(circle, rgba(99,102,241,.35), transparent 66%);
  top: -120px; right: -100px; opacity: 0; transition: opacity .45s;
}
.service-card:hover { border-color: var(--border-2); background: var(--surface-2); box-shadow: var(--shadow); }
.service-card:hover .sc-glow { opacity: 1; }
.sc-icon {
  width: 50px; height: 50px; border-radius: 15px; display: grid; place-items: center; margin-bottom: 18px;
  background: var(--grad-soft); border: 1px solid rgba(103,232,249,.24); color: var(--cyan-2);
  transition: transform .4s;
}
.service-card:hover .sc-icon { transform: scale(1.08) rotate(-4deg); }
.sc-icon .ico { width: 23px; height: 23px; }
.sc-tag {
  position: absolute; top: 26px; right: 24px; font-size: 11px; letter-spacing: .08em; text-transform: uppercase;
  color: var(--muted); padding: 4px 10px; border-radius: 100px; border: 1px solid var(--border);
}
.service-card h3 { font-size: 18.5px; font-weight: 750; margin-bottom: 10px; letter-spacing: -.012em; }
.service-card p { font-size: 14.3px; color: var(--muted); line-height: 1.68; }
.sc-link { display: inline-flex; align-items: center; gap: 7px; margin-top: 18px; font-size: 13.8px; font-weight: 650; color: var(--cyan-2); }
.sc-link .ico { transition: transform .3s; }
.sc-link:hover .ico { transform: translateX(4px); }

/* ---------- Why ---------- */
.why-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 56px; align-items: start; }
.why-list { display: flex; flex-direction: column; gap: 22px; margin-top: 8px; }
.why-item { display: flex; gap: 16px; padding: 20px; border-radius: var(--radius-sm); background: var(--surface); border: 1px solid var(--border); transition: all .35s; }
.why-item:hover { background: var(--surface-2); border-color: var(--border-2); transform: translateX(5px); }
.wi-icon { width: 44px; height: 44px; border-radius: 13px; display: grid; place-items: center; flex: 0 0 auto; background: var(--grad-soft); color: var(--cyan-2); border: 1px solid rgba(103,232,249,.2); }
.wi-icon .ico { width: 21px; height: 21px; }
.why-item h3 { font-size: 16.5px; font-weight: 720; margin-bottom: 5px; }
.why-item p { font-size: 14.2px; color: var(--muted); }

.why-right { display: flex; flex-direction: column; gap: 18px; }
.quote-panel { padding: 30px 28px; border-radius: var(--radius); background: linear-gradient(150deg, rgba(99,102,241,.13), rgba(6,182,212,.06)); border: 1px solid var(--border-2); position: relative; transition: transform .4s; }
.quote-panel:hover { transform: translateY(-5px); }
.quote-panel.alt { background: linear-gradient(150deg, rgba(6,182,212,.12), rgba(168,85,247,.06)); }
.quote-ico { width: 26px; height: 26px; color: var(--cyan-2); opacity: .8; margin-bottom: 12px; }
.quote-panel blockquote { font-size: 15.6px; line-height: 1.78; color: var(--text-2); }
.quote-panel cite { display: block; margin-top: 16px; font-style: normal; font-size: 13px; color: var(--muted); padding-top: 14px; border-top: 1px solid var(--border); }

/* ---------- 流程 ---------- */
.process-track { display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px; position: relative; }
.process-line { position: absolute; top: 27px; left: 6%; right: 6%; height: 1px; background: linear-gradient(90deg, transparent, rgba(99,102,241,.5), rgba(34,211,238,.5), transparent); }
.process-step { position: relative; padding-top: 0; }
.ps-num {
  width: 54px; height: 54px; border-radius: 16px; display: grid; place-items: center; font-weight: 900; font-size: 16px;
  background: var(--bg-3); border: 1px solid var(--border-2); color: var(--cyan-2); margin-bottom: 20px;
  box-shadow: 0 0 0 6px rgba(7,10,20,1); transition: all .4s; position: relative; z-index: 1;
}
.process-step:hover .ps-num { background: var(--grad); color: #04070f; border-color: transparent; transform: translateY(-4px); box-shadow: 0 0 0 6px rgba(7,10,20,1), var(--glow); }
.process-step h3 { font-size: 16px; font-weight: 720; margin-bottom: 8px; }
.process-step p { font-size: 13.8px; color: var(--muted); line-height: 1.66; }

/* ---------- 案例 ---------- */
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.case-card { padding: 28px 26px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--border); display: flex; flex-direction: column; transition: all .4s cubic-bezier(.2,.8,.3,1); }
.case-card:hover { border-color: var(--border-2); background: var(--surface-2); box-shadow: var(--shadow); transform: translateY(-4px); }
.cc-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 16px; flex-wrap: wrap; }
.cc-industry { font-size: 11.5px; letter-spacing: .09em; text-transform: uppercase; color: var(--cyan-2); padding: 4px 11px; border-radius: 100px; background: rgba(6,182,212,.1); border: 1px solid rgba(6,182,212,.22); }
.cc-tags { display: flex; gap: 6px; flex-wrap: wrap; }
.cc-tags span { font-size: 11px; color: var(--dim); padding: 3px 9px; border-radius: 100px; border: 1px solid var(--border); }
.case-card h3 { font-size: 16.6px; font-weight: 750; line-height: 1.45; margin-bottom: 12px; }
.case-card > p { font-size: 13.8px; color: var(--muted); flex: 1; }
.cc-metrics { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin: 20px 0 16px; padding-top: 18px; border-top: 1px solid var(--border); }
.cc-metric b { display: block; font-size: 19px; font-weight: 880; background: var(--grad-text); -webkit-background-clip: text; background-clip: text; color: transparent; letter-spacing: -.02em; }
.cc-metric span { font-size: 11px; color: var(--dim); line-height: 1.4; display: block; margin-top: 3px; }

/* ---------- 博客卡 ---------- */
.post-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.post-card { border-radius: var(--radius); background: var(--surface); border: 1px solid var(--border); overflow: hidden; display: flex; flex-direction: column; transition: all .4s cubic-bezier(.2,.8,.3,1); }
.post-card:hover { border-color: var(--border-2); background: var(--surface-2); box-shadow: var(--shadow); transform: translateY(-4px); }
.pc-cover { position: relative; aspect-ratio: 16 / 8.4; display: grid; place-items: center; background: linear-gradient(135deg, rgba(99,102,241,.24), rgba(6,182,212,.13) 60%, rgba(168,85,247,.13)); overflow: hidden; }
.pc-cover::after { content: ''; position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px); background-size: 26px 26px; opacity: .55; }
.pc-cover-letter { font-size: 52px; font-weight: 900; color: rgba(255,255,255,.16); position: relative; z-index: 1; transition: transform .5s; }
.post-card:hover .pc-cover-letter { transform: scale(1.14); }
.pc-cover-cat { position: absolute; left: 14px; top: 14px; z-index: 2; font-size: 11px; padding: 4px 11px; border-radius: 100px; background: rgba(7,10,20,.68); border: 1px solid var(--border-2); color: var(--cyan-2); backdrop-filter: blur(8px); }
.pc-body { padding: 22px; display: flex; flex-direction: column; flex: 1; }
.pc-meta { display: flex; gap: 14px; font-size: 12px; color: var(--dim); margin-bottom: 12px; }
.pc-meta span { display: inline-flex; align-items: center; gap: 5px; }
.pc-body h3 { font-size: 16.6px; font-weight: 740; line-height: 1.48; margin-bottom: 10px; }
.pc-body h3 a:hover { color: var(--cyan-2); }
.pc-body p { font-size: 13.9px; color: var(--muted); flex: 1; display: -webkit-box; -webkit-line-clamp: 3; -webkit-box-orient: vertical; overflow: hidden; }
.pc-foot { display: flex; align-items: center; justify-content: space-between; margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--border); }
.pc-cat { font-size: 12px; color: var(--dim); }
.pc-foot .sc-link { margin-top: 0; font-size: 13.2px; }

/* ---------- FAQ ---------- */
.faq-list { display: flex; flex-direction: column; gap: 12px; }
.faq-item { border-radius: var(--radius-sm); background: var(--surface); border: 1px solid var(--border); overflow: hidden; transition: all .3s; }
.faq-item[open] { border-color: var(--border-2); background: var(--surface-2); }
.faq-item summary { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 20px 22px; cursor: pointer; list-style: none; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-q { font-size: 15.8px; font-weight: 650; }
.faq-toggle { width: 30px; height: 30px; border-radius: 9px; display: grid; place-items: center; flex: 0 0 auto; background: var(--surface-2); border: 1px solid var(--border); transition: transform .35s, background .3s; }
.faq-toggle .ico { width: 15px; height: 15px; }
.faq-item[open] .faq-toggle { transform: rotate(135deg); background: var(--grad); color: #04070f; border-color: transparent; }
.faq-a { padding: 0 22px 22px; }
.faq-a p { font-size: 14.6px; color: var(--muted); line-height: 1.78; }
.faq-a p + p { margin-top: 12px; }

/* ---------- CTA band ---------- */
.cta-band { position: relative; padding: 100px 0; overflow: hidden; border-top: 1px solid var(--border); }
.cta-aurora { position: absolute; inset: 0; pointer-events: none; }
.cta-aurora i { position: absolute; border-radius: 50%; filter: blur(90px); }
.cta-aurora i:nth-child(1) { width: 44%; height: 200%; left: -6%; top: -50%; background: rgba(99,102,241,.32); animation: drift1 22s ease-in-out infinite; }
.cta-aurora i:nth-child(2) { width: 38%; height: 180%; right: -4%; top: -30%; background: rgba(6,182,212,.26); animation: drift2 28s ease-in-out infinite; }
.cta-aurora i:nth-child(3) { width: 30%; height: 150%; left: 38%; top: 10%; background: rgba(168,85,247,.2); animation: drift1 34s ease-in-out infinite reverse; }
.cta-inner { text-align: center; max-width: 820px; }
.cta-inner h2 { font-size: clamp(1.85rem, 3.5vw, 2.9rem); font-weight: 900; letter-spacing: -.025em; margin-top: 20px; line-height: 1.2; }
.cta-inner > p { margin-top: 20px; font-size: 17px; color: var(--text-2); }
.cta-actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; margin-top: 34px; }
.cta-contact-line { display: flex; gap: 26px; justify-content: center; flex-wrap: wrap; margin-top: 40px; padding-top: 30px; border-top: 1px solid var(--border); }
.cta-contact-line span { display: inline-flex; align-items: center; gap: 8px; font-size: 14px; color: var(--muted); }
.cta-contact-line .ico { width: 16px; height: 16px; color: var(--cyan-2); }

/* ---------- 表单 ---------- */
.lead-form { padding: 30px; border-radius: var(--radius); background: rgba(13,18,38,.7); border: 1px solid var(--border-2); backdrop-filter: blur(18px); box-shadow: var(--shadow); }
.lf-head h3 { font-size: 20px; font-weight: 780; }
.lf-head p { font-size: 13px; color: var(--dim); margin-top: 6px; }
.lf-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 16px; }
.lf-field { display: flex; flex-direction: column; gap: 7px; margin-top: 16px; }
.lf-row .lf-field { margin-top: 0; }
.lf-field span { font-size: 12.8px; color: var(--text-2); font-weight: 600; }
.lf-field span i { color: var(--accent); font-style: normal; }
.lf-field input, .lf-field textarea {
  width: 100%; padding: 13px 15px; border-radius: var(--radius-xs); background: rgba(255,255,255,.045);
  border: 1px solid var(--border); color: var(--text); font-size: 14.5px; transition: all .25s; resize: vertical;
}
.lf-field input::placeholder, .lf-field textarea::placeholder { color: var(--dim); }
.lf-field input:focus, .lf-field textarea:focus { outline: none; border-color: rgba(103,232,249,.6); background: rgba(255,255,255,.07); box-shadow: 0 0 0 4px rgba(6,182,212,.12); }
.lf-field input.is-error, .lf-field textarea.is-error { border-color: #f87171; box-shadow: 0 0 0 4px rgba(248,113,113,.13); }
.hp { position: absolute !important; left: -9999px !important; opacity: 0; pointer-events: none; }
.lead-form .btn { margin-top: 22px; }
.lf-status { margin-top: 14px; font-size: 13.5px; text-align: center; min-height: 20px; }
.lf-status.ok { color: #34d399; }
.lf-status.err { color: #f87171; }
.lead-form.is-compact { padding: 26px; }

/* ---------- 页头（子页面） ---------- */
.page-hero { padding: 92px 0 66px; text-align: center; border-bottom: 1px solid var(--border); }
.page-hero h1 { font-size: clamp(2rem, 4.1vw, 3.2rem); font-weight: 900; letter-spacing: -.028em; line-height: 1.18; margin-top: 18px; max-width: 900px; margin-left: auto; margin-right: auto; }
.page-hero > .container > p { margin-top: 22px; font-size: 17px; color: var(--text-2); max-width: 720px; margin-left: auto; margin-right: auto; }
.page-hero .hero-actions { justify-content: center; }
.page-hero.notfound { padding: 130px 0; }
.nf-code { font-size: clamp(5rem, 15vw, 9rem); font-weight: 900; line-height: 1; background: var(--grad-text); -webkit-background-clip: text; background-clip: text; color: transparent; letter-spacing: -.05em; }

.breadcrumb { padding: 20px 0 0; font-size: 13px; color: var(--dim); }
.breadcrumb a { color: var(--muted); }
.breadcrumb a:hover { color: var(--cyan-2); }
.breadcrumb i { font-style: normal; margin: 0 9px; opacity: .5; }

/* ---------- 服务详情 ---------- */
.svc-hero { padding: 46px 0 76px; border-bottom: 1px solid var(--border); }
.svc-hero-inner { display: grid; grid-template-columns: 1.25fr .75fr; gap: 56px; align-items: center; }
.svc-hero h1 { font-size: clamp(1.9rem, 3.9vw, 3rem); font-weight: 900; letter-spacing: -.028em; line-height: 1.2; margin-top: 18px; }
.svc-hero p { margin-top: 22px; font-size: 16.6px; color: var(--text-2); }
.svc-hero-kpis { display: grid; gap: 14px; }
.kpi-card { padding: 22px 24px; border-radius: var(--radius-sm); background: var(--surface); border: 1px solid var(--border); transition: all .35s; }
.kpi-card:hover { background: var(--surface-2); border-color: var(--border-2); transform: translateX(5px); }
.kpi-card b { display: block; font-size: 27px; font-weight: 900; letter-spacing: -.03em; background: var(--grad-text); -webkit-background-clip: text; background-clip: text; color: transparent; }
.kpi-card span { display: block; font-size: 12.8px; color: var(--muted); margin-top: 5px; line-height: 1.5; }

.problem-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.problem-card { padding: 26px 22px; border-radius: var(--radius-sm); background: var(--surface); border: 1px solid var(--border); transition: all .35s; }
.problem-card:hover { border-color: rgba(248,113,113,.4); background: rgba(248,113,113,.05); transform: translateY(-4px); }
.pico { width: 22px; height: 22px; color: #f87171; margin-bottom: 14px; }
.problem-card p { font-size: 14.6px; color: var(--text-2); line-height: 1.7; }

.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.feature-card { position: relative; padding: 28px 24px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--border); transition: all .4s; overflow: hidden; }
.feature-card:hover { background: var(--surface-2); border-color: var(--border-2); box-shadow: var(--shadow-sm); transform: translateY(-4px); }
.fc-num { font-family: var(--mono); font-size: 12px; color: var(--cyan-2); opacity: .75; letter-spacing: .1em; }
.feature-card h3 { font-size: 16.4px; font-weight: 730; margin: 12px 0 9px; }
.feature-card p { font-size: 14px; color: var(--muted); line-height: 1.7; }

.deliver-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
.deliver-left h2 { font-size: clamp(1.6rem, 2.8vw, 2.2rem); font-weight: 860; margin-top: 16px; letter-spacing: -.022em; }
.deliver-list { margin-top: 26px; display: flex; flex-direction: column; gap: 13px; }
.deliver-list li { display: flex; align-items: flex-start; gap: 11px; font-size: 15px; color: var(--text-2); }
.deliver-list .ico { color: var(--cyan-2); margin-top: 4px; }

/* ---------- 案例详情 ---------- */
.case-block { padding: 30px 0; border-bottom: 1px solid var(--border); }
.case-block:last-of-type { border-bottom: 0; }
.case-block > p { margin-top: 16px; font-size: 16.4px; color: var(--text-2); line-height: 1.8; }
.result-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin-top: 22px; }
.result-card { padding: 24px; border-radius: var(--radius-sm); background: var(--surface); border: 1px solid var(--border); text-align: center; }
.result-card b { display: block; font-size: 30px; font-weight: 900; background: var(--grad-text); -webkit-background-clip: text; background-clip: text; color: transparent; letter-spacing: -.03em; }
.result-card span { display: block; margin-top: 7px; font-size: 12.6px; color: var(--muted); }
.case-tags { display: flex; gap: 9px; flex-wrap: wrap; margin-top: 26px; }
.case-tags span { font-size: 12.5px; padding: 6px 14px; border-radius: 100px; background: var(--surface); border: 1px solid var(--border); color: var(--text-2); }
.case-source { margin-top: 20px; font-size: 12.5px; color: var(--dim); }

/* ---------- 客户评价 ---------- */
.testi-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.testi-card { padding: 30px 26px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--border); transition: all .4s; }
.testi-card:hover { background: var(--surface-2); border-color: var(--border-2); transform: translateY(-4px); }
.testi-card blockquote { font-size: 15.4px; color: var(--text-2); line-height: 1.8; margin-top: 12px; }
.testi-card cite { display: block; margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--border); font-style: normal; font-size: 12.8px; color: var(--muted); }

/* ---------- 博客列表 ---------- */
.feat-post { display: grid; grid-template-columns: .82fr 1.18fr; gap: 0; border-radius: var(--radius); overflow: hidden; background: var(--surface); border: 1px solid var(--border-2); margin-bottom: 40px; }
.fp-cover { position: relative; display: grid; place-items: center; min-height: 300px; background: linear-gradient(135deg, rgba(99,102,241,.3), rgba(6,182,212,.16) 55%, rgba(168,85,247,.18)); }
.fp-cover::after { content: ''; position: absolute; inset: 0; background-image: linear-gradient(rgba(255,255,255,.06) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.06) 1px, transparent 1px); background-size: 30px 30px; }
.fp-letter { font-size: 88px; font-weight: 900; color: rgba(255,255,255,.14); position: relative; z-index: 1; }
.fp-cat { position: absolute; left: 18px; top: 18px; z-index: 2; font-size: 11.5px; padding: 5px 13px; border-radius: 100px; background: rgba(7,10,20,.7); border: 1px solid var(--border-2); color: var(--cyan-2); backdrop-filter: blur(8px); }
.fp-body { padding: 38px 40px; display: flex; flex-direction: column; justify-content: center; }
.fp-body h2 { font-size: clamp(1.35rem, 2.4vw, 1.85rem); font-weight: 820; line-height: 1.35; margin-bottom: 16px; letter-spacing: -.018em; }
.fp-body h2 a:hover { color: var(--cyan-2); }
.fp-body > p { font-size: 15px; color: var(--muted); }
.fp-body .btn { margin-top: 24px; align-self: flex-start; }

.filter-bar { display: flex; gap: 9px; flex-wrap: wrap; margin-bottom: 32px; }
.chip { padding: 8px 17px; border-radius: 100px; border: 1px solid var(--border); background: var(--surface); font-size: 13.4px; color: var(--text-2); transition: all .28s; }
.chip:hover { border-color: var(--border-2); color: #fff; }
.chip.is-on { background: var(--grad); color: #04070f; border-color: transparent; font-weight: 700; }
.empty-hint { text-align: center; color: var(--dim); padding: 40px 0; }

/* ---------- 文章页 ---------- */
.post-header { padding: 60px 0 40px; text-align: center; border-bottom: 1px solid var(--border); }
.post-header h1 { font-size: clamp(1.75rem, 3.5vw, 2.7rem); font-weight: 880; line-height: 1.28; letter-spacing: -.026em; margin-top: 18px; }
.post-meta { display: flex; gap: 22px; justify-content: center; flex-wrap: wrap; margin-top: 24px; font-size: 13.2px; color: var(--muted); }
.post-meta span { display: inline-flex; align-items: center; gap: 7px; }

.post-layout { display: grid; grid-template-columns: 232px minmax(0, 1fr); gap: 52px; padding: 54px 26px; max-width: 1120px; }
.post-toc { position: sticky; top: 100px; align-self: start; }
.post-toc h4 { font-size: 12px; letter-spacing: .13em; text-transform: uppercase; color: var(--dim); margin-bottom: 14px; }
.post-toc ul { display: flex; flex-direction: column; gap: 2px; border-left: 1px solid var(--border); }
.post-toc a { display: block; padding: 6px 0 6px 14px; font-size: 13.4px; color: var(--muted); border-left: 2px solid transparent; margin-left: -1px; transition: all .25s; }
.post-toc a:hover, .post-toc a.is-active { color: var(--cyan-2); border-left-color: var(--cyan-2); }

.post-content { max-width: 760px; font-size: 16.6px; line-height: 1.86; color: var(--text-2); }
.post-content > * + * { margin-top: 22px; }
.post-content h2 { font-size: clamp(1.35rem, 2.4vw, 1.72rem); font-weight: 820; color: var(--text); letter-spacing: -.02em; line-height: 1.35; margin-top: 52px; padding-top: 8px; position: relative; }
.post-content h3 { font-size: 1.16rem; font-weight: 720; color: var(--text); margin-top: 36px; }
.post-content h2 .anchor, .post-content h3 .anchor { position: absolute; left: -24px; opacity: 0; color: var(--cyan-2); text-decoration: none; font-weight: 400; transition: opacity .25s; }
.post-content h2:hover .anchor, .post-content h3:hover .anchor { opacity: .55; }
.post-content strong { color: var(--text); font-weight: 720; }
.post-content a { color: var(--cyan-2); border-bottom: 1px solid rgba(34,211,238,.3); }
.post-content a:hover { border-bottom-color: var(--cyan-2); }
.post-content ul, .post-content ol { padding-left: 4px; display: flex; flex-direction: column; gap: 11px; }
.post-content ol { counter-reset: li; }
.post-content ul li { position: relative; padding-left: 26px; }
.post-content ul li::before { content: ''; position: absolute; left: 6px; top: .72em; width: 6px; height: 6px; border-radius: 50%; background: var(--grad); }
.post-content ol li { position: relative; padding-left: 34px; counter-increment: li; }
.post-content ol li::before { content: counter(li); position: absolute; left: 0; top: .34em; width: 22px; height: 22px; border-radius: 7px; display: grid; place-items: center; font-size: 11.5px; font-weight: 800; background: var(--grad-soft); border: 1px solid rgba(103,232,249,.24); color: var(--cyan-2); }
.post-content ul ul, .post-content ul ol, .post-content ol ul, .post-content ol ol { margin-top: 11px; }
.post-content blockquote { padding: 20px 24px; border-radius: var(--radius-sm); background: var(--grad-soft); border-left: 3px solid var(--cyan); }
.post-content blockquote p { font-size: 15.8px; color: var(--text); }
.post-content blockquote > * + * { margin-top: 12px; }
.post-content code { font-family: var(--mono); font-size: .88em; padding: 2px 7px; border-radius: 6px; background: rgba(255,255,255,.07); border: 1px solid var(--border); color: var(--cyan-2); }
.post-content pre.code-block { padding: 20px; border-radius: var(--radius-sm); background: #05070f; border: 1px solid var(--border); overflow-x: auto; }
.post-content pre.code-block code { background: none; border: 0; padding: 0; color: #cbd5e1; font-size: 13.4px; line-height: 1.7; }
.post-content hr { border: 0; height: 1px; background: var(--border); }
.post-content img { border-radius: var(--radius-sm); border: 1px solid var(--border); }
.table-wrap { overflow-x: auto; border-radius: var(--radius-sm); border: 1px solid var(--border); }
.post-content table { width: 100%; border-collapse: collapse; font-size: 14.4px; min-width: 460px; }
.post-content th { background: rgba(255,255,255,.05); text-align: left; padding: 13px 16px; font-weight: 700; color: var(--text); font-size: 13.6px; border-bottom: 1px solid var(--border-2); }
.post-content td { padding: 12px 16px; border-bottom: 1px solid var(--border); vertical-align: top; }
.post-content tbody tr:last-child td { border-bottom: 0; }
.post-content tbody tr:hover { background: rgba(255,255,255,.025); }

.post-tags { display: flex; gap: 9px; flex-wrap: wrap; margin-top: 44px; padding-top: 28px; border-top: 1px solid var(--border); }
.post-tags span { display: inline-flex; align-items: center; gap: 6px; font-size: 12.5px; padding: 6px 13px; border-radius: 100px; background: var(--surface); border: 1px solid var(--border); color: var(--muted); }
.post-author { display: flex; gap: 18px; margin-top: 30px; padding: 26px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--border-2); }
.pa-avatar { width: 54px; height: 54px; border-radius: 15px; display: grid; place-items: center; flex: 0 0 auto; background: var(--grad); color: #04070f; font-weight: 900; font-size: 18px; }
.post-author b { font-size: 15.4px; }
.post-author p { font-size: 13.8px; color: var(--muted); margin-top: 7px; }
.post-author .btn { margin-top: 14px; }

.post-nav { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; padding-bottom: 60px; }
.pn-item { padding: 20px 22px; border-radius: var(--radius-sm); background: var(--surface); border: 1px solid var(--border); transition: all .3s; }
.pn-item:hover { background: var(--surface-2); border-color: var(--border-2); }
.pn-item.right { text-align: right; }
.pn-item span { display: inline-flex; align-items: center; gap: 6px; font-size: 12.4px; color: var(--dim); }
.pn-item b { display: block; margin-top: 9px; font-size: 14.6px; font-weight: 650; line-height: 1.5; }

/* ---------- 关于 ---------- */
.about-grid { display: grid; grid-template-columns: 1.35fr .65fr; gap: 56px; align-items: start; }
.about-text h2 { font-size: clamp(1.4rem, 2.5vw, 1.85rem); font-weight: 840; margin: 38px 0 16px; letter-spacing: -.022em; line-height: 1.32; }
.about-text h2:first-child { margin-top: 0; }
.about-text p { font-size: 16.2px; color: var(--text-2); line-height: 1.85; }
.about-text p + p { margin-top: 16px; }
.about-text strong { color: var(--text); font-weight: 720; }
.about-side { display: flex; flex-direction: column; gap: 18px; position: sticky; top: 100px; }
.profile-card { padding: 30px; border-radius: var(--radius); background: rgba(13,18,38,.72); border: 1px solid var(--border-2); backdrop-filter: blur(16px); box-shadow: var(--shadow); text-align: center; }
.pc-avatar-lg { width: 68px; height: 68px; border-radius: 20px; display: grid; place-items: center; margin: 0 auto 16px; background: var(--grad); color: #04070f; font-weight: 900; font-size: 23px; box-shadow: var(--glow); }
.profile-card h3 { font-size: 19px; font-weight: 800; }
.pc-role { font-size: 13.2px; color: var(--cyan-2); margin-top: 5px; letter-spacing: .02em; }
.profile-list { margin: 22px 0; display: flex; flex-direction: column; gap: 12px; text-align: left; }
.profile-list li { display: flex; align-items: center; gap: 11px; font-size: 13.8px; color: var(--text-2); }
.profile-list .ico { color: var(--cyan-2); }
.profile-list a:hover { color: var(--cyan-2); }
.badge-card { padding: 24px 26px; border-radius: var(--radius); background: var(--surface); border: 1px solid var(--border); }
.badge-card ul { margin-top: 16px; display: flex; flex-direction: column; gap: 11px; }
.badge-card li { display: flex; align-items: center; gap: 10px; font-size: 13.6px; color: var(--text-2); }
.badge-card .ico { color: var(--cyan-2); }

/* ---------- 联系 ---------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1.05fr; gap: 46px; align-items: start; }
.contact-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.contact-card { display: flex; align-items: center; gap: 14px; padding: 20px; border-radius: var(--radius-sm); background: var(--surface); border: 1px solid var(--border); transition: all .35s; }
.contact-card:hover { background: var(--surface-2); border-color: var(--border-2); transform: translateY(-3px); }
.cci { width: 44px; height: 44px; border-radius: 13px; display: grid; place-items: center; flex: 0 0 auto; background: var(--grad-soft); color: var(--cyan-2); border: 1px solid rgba(103,232,249,.2); }
.cci .ico { width: 20px; height: 20px; }
.cci.wa { color: #25d366; background: rgba(37,211,102,.1); border-color: rgba(37,211,102,.25); }
.cci.wx { color: #07c160; background: rgba(7,193,96,.1); border-color: rgba(7,193,96,.25); }
.contact-card b { display: block; font-size: 14.4px; font-weight: 700; }
.contact-card span { display: block; font-size: 12.8px; color: var(--muted); margin-top: 3px; word-break: break-all; }

/* ---------- 悬浮联系 ---------- */
.float-rail { position: fixed; right: 22px; bottom: 26px; z-index: 130; display: flex; flex-direction: column; gap: 12px; }
.float-btn { width: 50px; height: 50px; border-radius: 16px; display: grid; place-items: center; position: relative; background: rgba(13,18,38,.86); border: 1px solid var(--border-2); backdrop-filter: blur(14px); box-shadow: var(--shadow-sm); transition: all .3s; }
.float-btn .ico { width: 21px; height: 21px; }
.float-btn:hover { transform: translateY(-3px) scale(1.05); border-color: rgba(103,232,249,.6); }
.float-btn.wa { color: #25d366; }
.float-btn.tel { color: var(--cyan-2); }
.float-btn.top { opacity: 0; pointer-events: none; color: var(--text-2); }
.float-btn.top.is-on { opacity: 1; pointer-events: auto; }
.float-btn.wa::before { content: ''; position: absolute; inset: -1px; border-radius: inherit; border: 1px solid rgba(37,211,102,.6); animation: ring 2.6s ease-out infinite; }
@keyframes ring { 0% { transform: scale(1); opacity: .8; } 100% { transform: scale(1.55); opacity: 0; } }
.float-tip {
  position: absolute; right: calc(100% + 12px); top: 50%; transform: translateY(-50%) translateX(8px);
  padding: 8px 14px; border-radius: 10px; background: rgba(13,18,38,.96); border: 1px solid var(--border-2);
  font-size: 12.8px; white-space: nowrap; opacity: 0; pointer-events: none; transition: all .28s;
}
.float-btn:hover .float-tip { opacity: 1; transform: translateY(-50%) translateX(0); }

.mobile-cta { display: none; }

/* ---------- Footer ---------- */
.site-footer { position: relative; margin-top: 40px; border-top: 1px solid var(--border); background: linear-gradient(180deg, rgba(10,14,28,.6), rgba(5,7,15,.95)); overflow: hidden; }
.footer-glow { position: absolute; width: 60%; height: 260px; left: 20%; top: -140px; background: radial-gradient(ellipse, rgba(99,102,241,.24), transparent 68%); filter: blur(60px); }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.3fr; gap: 40px; padding: 64px 26px 44px; position: relative; z-index: 1; }
.footer-brand p { margin-top: 16px; font-size: 14px; color: var(--muted); max-width: 300px; }
.footer-social { display: flex; gap: 10px; margin-top: 20px; }
.footer-social a { width: 38px; height: 38px; border-radius: 11px; display: grid; place-items: center; background: var(--surface); border: 1px solid var(--border); color: var(--muted); transition: all .3s; }
.footer-social a:hover { color: var(--cyan-2); border-color: rgba(103,232,249,.5); transform: translateY(-3px); }
.footer-social .ico { width: 18px; height: 18px; }
.footer-col h4 { font-size: 13.4px; font-weight: 720; letter-spacing: .04em; margin-bottom: 18px; color: var(--text); }
.footer-col ul { display: flex; flex-direction: column; gap: 11px; }
.footer-col a { font-size: 13.6px; color: var(--muted); transition: color .25s; }
.footer-col a:hover { color: var(--cyan-2); }
.footer-contact li { display: flex; align-items: flex-start; gap: 10px; font-size: 13.4px; color: var(--muted); }
.footer-contact .ico { width: 15px; height: 15px; color: var(--cyan-2); margin-top: 3px; flex: 0 0 auto; }
.footer-bottom { display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; padding: 22px 26px 30px; border-top: 1px solid var(--border); position: relative; z-index: 1; }
.footer-bottom p { font-size: 12.8px; color: var(--dim); }
.footer-keywords { text-align: right; }

/* ---------- 滚动入场 ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .8s cubic-bezier(.22,1,.36,1), transform .8s cubic-bezier(.22,1,.36,1); transition-delay: var(--d, 0s); }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  * { animation-duration: .01ms !important; animation-iteration-count: 1 !important; }
  html { scroll-behavior: auto; }
}

/* ---------- 响应式 ---------- */
@media (max-width: 1100px) {
  .hero-inner { grid-template-columns: 1fr; gap: 52px; }
  .hero-visual { height: 400px; max-width: 560px; }
  .why-grid, .deliver-grid, .contact-grid, .about-grid { grid-template-columns: 1fr; gap: 40px; }
  .about-side { position: static; }
  .svc-hero-inner { grid-template-columns: 1fr; gap: 38px; }
  .service-grid, .case-grid, .post-grid, .testi-grid, .feature-grid { grid-template-columns: repeat(2, 1fr); }
  .problem-grid, .stats-grid { grid-template-columns: repeat(2, 1fr); }
  .process-track { grid-template-columns: repeat(2, 1fr); gap: 26px; }
  .process-line { display: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 34px; }
  .post-layout { grid-template-columns: 1fr; }
  .post-toc { position: static; }
}

@media (max-width: 900px) {
  .main-nav {
    position: fixed; inset: var(--header-h) 0 auto 0; flex-direction: column; align-items: stretch; gap: 2px;
    padding: 18px 22px 24px; background: rgba(7,10,20,.97); backdrop-filter: blur(22px);
    border-bottom: 1px solid var(--border); transform: translateY(-118%); transition: transform .42s cubic-bezier(.22,1,.36,1);
    max-height: calc(100vh - var(--header-h)); overflow-y: auto; margin-left: 0;
  }
  .main-nav.is-open { transform: translateY(0); }
  .nav-link { padding: 14px 16px; font-size: 16px; border-radius: 12px; }
  .nav-link::after { display: none; }
  .menu-toggle { display: grid; }
  .header-actions .btn-primary { display: none; }
  .lang-switch span { display: none; }
  .header-inner { gap: 14px; }
  .main-nav { margin-left: auto; }
}

@media (max-width: 680px) {
  .container { padding: 0 20px; }
  .hero { padding: 56px 0 76px; min-height: auto; }
  .hero-scroll { display: none; }
  .hero-visual { height: 350px; }
  .hv-main { inset: 0 0 40px 0; }
  .hv-chip-1 { right: 0; top: 6px; }
  .hv-chip-2 { left: 0; bottom: -6px; }
  .service-grid, .case-grid, .post-grid, .testi-grid, .feature-grid, .problem-grid, .contact-cards, .result-grid, .lf-row, .stats-grid { grid-template-columns: 1fr; }
  .process-track { grid-template-columns: 1fr; }
  .feat-post { grid-template-columns: 1fr; }
  .fp-cover { min-height: 170px; }
  .fp-letter { font-size: 60px; }
  .fp-body { padding: 26px 22px; }
  .stats-section, .services-section, .why-section, .process-section, .cases-section, .blog-section, .faq-section,
  .others-section, .testi-section, .svc-problems, .svc-features, .svc-deliver, .case-detail, .about-story, .contact-section { padding: 62px 0; }
  .page-hero { padding: 58px 0 44px; }
  .cta-contact-line { flex-direction: column; align-items: center; gap: 12px; }
  .footer-grid { grid-template-columns: 1fr; gap: 30px; padding: 48px 20px 34px; }
  .footer-keywords { text-align: left; }
  .float-rail { right: 14px; bottom: 84px; }
  .float-tip { display: none; }
  .mobile-cta { display: block; position: fixed; left: 0; right: 0; bottom: 0; z-index: 129; padding: 12px 16px calc(12px + env(safe-area-inset-bottom)); background: linear-gradient(180deg, rgba(7,10,20,0), rgba(7,10,20,.94) 42%); }
  .mobile-cta .btn { border-radius: 100px; }
  .post-nav { grid-template-columns: 1fr; }
  .post-content { font-size: 16px; }
  .brand-text em { display: none; }
  .hero-title { font-size: clamp(1.85rem, 8.4vw, 2.6rem); }
  .hero-desc { font-size: 15.6px; }
  .cta-actions .btn, .hero-actions .btn { flex: 1 1 auto; }
  .post-layout { padding: 36px 20px; }
  .quote-panel, .lead-form, .profile-card { padding: 24px 22px; }
}

/* ---------- 微信二维码 ---------- */
.float-btn.wx { color: #07c160; }
.float-btn.wx::before { content: ''; position: absolute; inset: -1px; border-radius: inherit; border: 1px solid rgba(7,193,96,.55); animation: ring 2.6s .9s ease-out infinite; }

button.contact-card { font: inherit; color: inherit; text-align: left; cursor: pointer; width: 100%; position: relative; padding-right: 84px; }
.cc-qr { position: absolute; right: 16px; top: 50%; transform: translateY(-50%); width: 56px; height: 56px; border-radius: 12px; object-fit: cover; background: #fff; border: 1px solid var(--border-2); transition: transform .35s; }
button.contact-card:hover .cc-qr { transform: translateY(-50%) scale(1.08) rotate(-2deg); }

.qr-modal { position: fixed; inset: 0; z-index: 210; display: grid; place-items: center; padding: 24px; opacity: 0; pointer-events: none; transition: opacity .3s ease; }
.qr-modal.is-open { opacity: 1; pointer-events: auto; }
.qr-backdrop { position: absolute; inset: 0; background: rgba(3,7,18,.8); backdrop-filter: blur(10px); }
.qr-card {
  position: relative; width: min(340px, 100%); background: #fff; color: #17233d;
  border-radius: 22px; padding: 16px 16px 20px; text-align: center;
  box-shadow: 0 30px 90px rgba(0,0,0,.55); overflow: hidden;
  transform: translateY(18px) scale(.95); transition: transform .38s cubic-bezier(.22,1,.36,1);
}
.qr-modal.is-open .qr-card { transform: none; }
.qr-card > img { width: 100%; height: auto; display: block; border-radius: 14px; }
.qr-meta { padding: 14px 6px 0; display: grid; gap: 6px; }
.qr-meta b { font-size: 16.5px; display: inline-flex; align-items: center; justify-content: center; gap: 7px; }
.qr-meta b .ico { width: 18px; height: 18px; color: #07c160; }
.qr-meta span { font-size: 12.8px; color: #5b6b8c; line-height: 1.55; }
.qr-meta i { font-style: normal; font-size: 11.5px; color: #98a6c3; letter-spacing: .04em; }
.qr-close {
  position: absolute; top: 10px; right: 10px; z-index: 2; width: 32px; height: 32px;
  border-radius: 50%; border: none; cursor: pointer; font-size: 19px; line-height: 1;
  background: rgba(23,35,61,.1); color: #17233d; transition: background .25s, transform .25s;
}
.qr-close:hover { background: rgba(23,35,61,.2); transform: rotate(90deg); }