/* ==========================================================================
   上海胧月织梦科技有限公司 · 官网样式
   极光科技风 / 蓝紫绿黑配色
   ========================================================================== */

:root {
  --bg: #04060c;
  --bg-soft: #080c16;
  --surface: rgba(255, 255, 255, 0.035);
  --surface-strong: rgba(255, 255, 255, 0.06);
  --line: rgba(255, 255, 255, 0.09);
  --line-strong: rgba(255, 255, 255, 0.16);

  --blue: #3b82f6;
  --blue-deep: #1d4ed8;
  --purple: #8b5cf6;
  --purple-deep: #6d28d9;
  --green: #10b981;
  --green-light: #34d399;
  --cyan: #22d3ee;

  --text: #eef2fb;
  --text-dim: #a9b4c9;
  --text-mute: #6f7b93;

  --grad-aurora: linear-gradient(120deg, #22d3ee 0%, #3b82f6 32%, #8b5cf6 62%, #10b981 100%);
  --grad-blue-purple: linear-gradient(120deg, #2563eb, #7c3aed);
  --grad-green-blue: linear-gradient(120deg, #10b981, #2563eb);

  --radius-s: 10px;
  --radius: 16px;
  --radius-l: 24px;

  --shadow: 0 20px 60px rgba(0, 0, 0, 0.55);
  --glow-blue: 0 0 40px rgba(59, 130, 246, 0.35);
  --glow-purple: 0 0 40px rgba(139, 92, 246, 0.35);

  --nav-h: 72px;
  --max: 1200px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

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

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  font-family: "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", "Inter",
    -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  letter-spacing: 0.01em;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

::selection { background: rgba(139, 92, 246, 0.4); color: #fff; }

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: #05070f; }
::-webkit-scrollbar-thumb {
  border-radius: 10px;
  background: linear-gradient(180deg, #3b82f6, #8b5cf6, #10b981);
}

/* ------------------------------ 通用布局 ------------------------------ */
.container { width: min(var(--max), calc(100% - 48px)); margin-inline: auto; }

.section { position: relative; padding: 110px 0; }
.section--tight { padding: 80px 0; }

.grid-bg {
  position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 30%, #000 30%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 30%, #000 30%, transparent 100%);
}

/* -------------------------------- 文字 -------------------------------- */
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--green-light);
}
.eyebrow::before {
  content: ""; width: 26px; height: 1px;
  background: linear-gradient(90deg, transparent, var(--green-light));
}

.gradient-text {
  background: var(--grad-aurora);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}

h1, h2, h3, h4 { font-weight: 700; line-height: 1.25; letter-spacing: -0.01em; }
.h1 { font-size: clamp(38px, 5.4vw, 68px); }
.h2 { font-size: clamp(28px, 3.6vw, 44px); }
.h3 { font-size: clamp(20px, 2vw, 26px); }
.h4 { font-size: 18px; }

.lead { font-size: clamp(15px, 1.3vw, 18px); color: var(--text-dim); }
.muted { color: var(--text-dim); }
.mute-2 { color: var(--text-mute); font-size: 14px; }

.section-head { max-width: 720px; margin-bottom: 56px; }
.section-head .h2 { margin: 16px 0 18px; }
.section-head.center { margin-inline: auto; text-align: center; }
.center { text-align: center; }

/* ------------------------------- 按钮 -------------------------------- */
.btn {
  --btn-bg: transparent;
  position: relative; display: inline-flex; align-items: center; justify-content: center;
  gap: 10px; height: 50px; padding: 0 28px; border-radius: 999px;
  font-size: 15px; font-weight: 600; white-space: nowrap; cursor: pointer;
  border: 1px solid var(--line-strong); background: var(--btn-bg);
  transition: transform .35s var(--ease), box-shadow .35s var(--ease),
              border-color .35s var(--ease), background .35s var(--ease);
}
.btn:hover { transform: translateY(-3px); }

.btn--primary {
  border-color: transparent; color: #fff;
  background: linear-gradient(120deg, #2563eb, #7c3aed 55%, #10b981);
  background-size: 180% 100%;
  box-shadow: 0 10px 34px rgba(99, 102, 241, 0.35);
}
.btn--primary:hover { background-position: 100% 0; box-shadow: 0 16px 44px rgba(99, 102, 241, .5); }

.btn--ghost { background: rgba(255, 255, 255, 0.03); }
.btn--ghost:hover { border-color: rgba(139, 92, 246, .6); background: rgba(139, 92, 246, .1); }

.btn--lg { height: 56px; padding: 0 34px; font-size: 16px; }
.btn .arrow { transition: transform .35s var(--ease); }
.btn:hover .arrow { transform: translateX(4px); }

.link-arrow {
  display: inline-flex; align-items: center; gap: 8px;
  color: var(--green-light); font-weight: 600; font-size: 15px;
}
.link-arrow span:last-child { transition: transform .3s var(--ease); }
.link-arrow:hover span:last-child { transform: translateX(5px); }

/* ------------------------------- 导航 -------------------------------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: var(--nav-h);
  transition: background .4s var(--ease), border-color .4s var(--ease), height .4s var(--ease);
  border-bottom: 1px solid transparent;
}
.nav.is-scrolled {
  --nav-h: 64px;
  height: 64px;
  background: rgba(6, 9, 18, 0.82);
  backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px);
  border-bottom-color: var(--line);
}
.nav__inner { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 24px; }

.brand { display: flex; align-items: center; gap: 12px; }
.brand__mark {
  position: relative; width: 38px; height: 38px; border-radius: 11px;
  background: var(--grad-aurora); background-size: 200% 200%;
  display: grid; place-items: center; font-weight: 800; font-size: 17px; color: #04060c;
  box-shadow: 0 6px 22px rgba(59, 130, 246, .45);
  animation: auroraShift 8s ease-in-out infinite;
}
.brand__text { display: flex; flex-direction: column; line-height: 1.25; }
.brand__name { font-size: 26.5px; font-weight: 700; letter-spacing: .02em; }
.brand__en { font-size: 10.5px; letter-spacing: .18em; color: var(--text-mute); text-transform: uppercase; }

.nav__menu { display: flex; align-items: center; gap: 4px; }
.nav__link {
  position: relative; padding: 9px 15px; border-radius: 999px;
  font-size: 14.5px; color: var(--text-dim); transition: color .3s var(--ease);
}
/* 悬浮 / 当前页：极光渐变下划线 */
.nav__link::after {
  content: ""; position: absolute; left: 50%; bottom: 2px;
  width: 18px; height: 2px; border-radius: 2px; background: var(--grad-aurora);
  transform: translateX(-50%) scaleX(0); transform-origin: center; opacity: 0;
  transition: transform .3s var(--ease), opacity .3s var(--ease);
}
.nav__link:hover { color: #fff; }
.nav__link:hover::after,
.nav__link.is-active::after { transform: translateX(-50%) scaleX(1); opacity: 1; }
.nav__link.is-active { color: #fff; }
.nav__cta { margin-left: 10px; height: 42px; padding: 0 22px; font-size: 14px; }

.has-sub { position: relative; }
.has-sub > .nav__link::before {
  content: ""; position: absolute; right: 4px; top: 50%; margin-top: -1px;
  width: 5px; height: 5px; border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor; transform: translateY(-70%) rotate(45deg); opacity: .7;
}
.submenu {
  position: absolute; top: calc(100% + 12px); left: 50%; transform: translate(-50%, 8px);
  width: 560px; padding: 14px; border-radius: var(--radius);
  background: rgba(10, 14, 26, .96);
  border: 1px solid var(--line); box-shadow: var(--shadow);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 6px;
  opacity: 0; visibility: hidden; transition: all .3s var(--ease);
}
.has-sub:hover .submenu, .has-sub:focus-within .submenu {
  opacity: 1; visibility: visible; transform: translate(-50%, 0);
}
.submenu a {
  display: flex; flex-direction: column; gap: 2px; padding: 12px 14px;
  border-radius: 12px; transition: background .25s var(--ease), transform .25s var(--ease);
}
.submenu a:hover { background: rgba(255, 255, 255, .06); transform: translateY(-2px); }
.submenu strong { font-size: 14.5px; font-weight: 600; }
.submenu span { font-size: 12px; color: var(--text-mute); }

.nav__toggle {
  display: none; width: 42px; height: 42px; border-radius: 12px;
  border: 1px solid var(--line); background: rgba(255, 255, 255, .04);
  cursor: pointer; place-items: center;
}
.nav__toggle i { display: block; width: 18px; height: 1.6px; background: #fff; border-radius: 2px; }
.nav__toggle i + i { margin-top: 4px; }

/* --------------------------- 极光 Hero 背景 --------------------------- */
.hero {
  position: relative; min-height: 100vh; display: flex; align-items: center;
  padding: calc(var(--nav-h) + 60px) 0 90px; overflow: hidden;
}
.hero--inner { min-height: 62vh; padding: calc(var(--nav-h) + 40px) 0 60px; }
.hero__aurora { position: absolute; inset: -20% -10% auto -10%; height: 120%; z-index: 0; }
.blob {
  position: absolute; border-radius: 50%; filter: blur(90px); opacity: .38;
  mix-blend-mode: screen; will-change: transform;
}
.blob--1 { width: 46vw; height: 46vw; left: -6%; top: 4%; background: radial-gradient(circle, #1d4ed8, transparent 68%); animation: float1 22s ease-in-out infinite; }
.blob--2 { width: 42vw; height: 42vw; right: -4%; top: 0%; background: radial-gradient(circle, #7c3aed, transparent 68%); animation: float2 26s ease-in-out infinite; }
.blob--3 { width: 38vw; height: 38vw; left: 32%; bottom: -6%; background: radial-gradient(circle, #059669, transparent 70%); animation: float3 30s ease-in-out infinite; opacity: .26; }
.blob--4 { width: 26vw; height: 26vw; left: 46%; top: 30%; background: radial-gradient(circle, #0891b2, transparent 70%); animation: float1 18s ease-in-out infinite reverse; opacity: .22; }

.hero__canvas { position: absolute; inset: 0; z-index: 0; pointer-events: none; }
.hero__canvas canvas { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
#auroraCanvas { filter: blur(26px) saturate(150%); opacity: .9; mix-blend-mode: screen; }
#starCanvas { opacity: 1; }
#photonCanvas { mix-blend-mode: screen; }
@media (max-width: 768px) { #auroraCanvas { filter: blur(18px) saturate(150%); } }

.hero__veil {
  position: absolute; inset: 0; z-index: 1; pointer-events: none;
  background:
    radial-gradient(ellipse 70% 55% at 50% 42%, rgba(4, 6, 12, .06), rgba(4, 6, 12, .66) 82%),
    linear-gradient(180deg, rgba(4, 6, 12, .3), transparent 28%, rgba(4, 6, 12, .74));
}
.hero__content { position: relative; z-index: 2; }

@keyframes float1 {
  0%, 100% { transform: translate3d(0, 0, 0) scale(1); }
  50% { transform: translate3d(6%, 8%, 0) scale(1.12); }
}
@keyframes float2 {
  0%, 100% { transform: translate3d(0, 0, 0) scale(1.05); }
  50% { transform: translate3d(-8%, 6%, 0) scale(.92); }
}
@keyframes float3 {
  0%, 100% { transform: translate3d(0, 0, 0) scale(1); }
  50% { transform: translate3d(5%, -9%, 0) scale(1.18); }
}
@keyframes auroraShift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

.hero__badge {
  display: inline-flex; align-items: center; gap: 12px; padding: 7px 8px 7px 14px;
  border-radius: 999px; border: 1px solid var(--line);
  background: rgba(255, 255, 255, .04); backdrop-filter: blur(10px);
  font-size: 13px; color: var(--text-dim);
}
.hero__badge b {
  padding: 3px 10px; border-radius: 999px; font-size: 12px; font-weight: 600; color: #04060c;
  background: var(--grad-green-blue);
}
.hero .h1 { margin: 26px 0 22px; }
.hero__desc { max-width: 660px; font-size: clamp(15px, 1.4vw, 19px); color: var(--text-dim); }
.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 38px; }

/* -------------------------------- 卡片 -------------------------------- */
.card {
  position: relative; padding: 30px 28px; border-radius: var(--radius);
  border: 1px solid var(--line); background: var(--surface);
  transition: transform .45s var(--ease), border-color .45s var(--ease), background .45s var(--ease);
  overflow: hidden;
}
.card::before {
  content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none;
  background: radial-gradient(420px circle at var(--mx, 50%) var(--my, 0%), rgba(139, 92, 246, .18), transparent 60%);
  opacity: 0; transition: opacity .45s var(--ease);
}
.card:hover { transform: translateY(-6px); border-color: var(--line-strong); background: var(--surface-strong); }
.card:hover::before { opacity: 1; }

.grid { display: grid; gap: 22px; }
.g-2 { grid-template-columns: repeat(2, 1fr); }
.g-3 { grid-template-columns: repeat(3, 1fr); }
.g-4 { grid-template-columns: repeat(4, 1fr); }

.icon-box {
  width: 52px; height: 52px; border-radius: 14px; display: grid; place-items: center;
  font-size: 22px; margin-bottom: 20px;
  background: rgba(255, 255, 255, .05); border: 1px solid var(--line);
}
.icon-box--blue { background: linear-gradient(140deg, rgba(59, 130, 246, .28), rgba(59, 130, 246, .06)); border-color: rgba(59, 130, 246, .35); }
.icon-box--purple { background: linear-gradient(140deg, rgba(139, 92, 246, .28), rgba(139, 92, 246, .06)); border-color: rgba(139, 92, 246, .35); }
.icon-box--green { background: linear-gradient(140deg, rgba(16, 185, 129, .28), rgba(16, 185, 129, .06)); border-color: rgba(16, 185, 129, .35); }
.icon-box--cyan { background: linear-gradient(140deg, rgba(34, 211, 238, .26), rgba(34, 211, 238, .06)); border-color: rgba(34, 211, 238, .32); }

.card .h4 { margin-bottom: 10px; }
.card p { color: var(--text-dim); font-size: 14.5px; }

/* 产品卡 */
.product-card { display: flex; flex-direction: column; gap: 16px; min-height: 260px; }
.product-card__tag {
  align-self: flex-start; padding: 4px 12px; border-radius: 999px; font-size: 12px; font-weight: 700;
  letter-spacing: .1em; border: 1px solid var(--line-strong); color: var(--text-dim);
}
.product-card ul { display: grid; gap: 8px; margin-top: 4px; }
.product-card li { position: relative; padding-left: 18px; font-size: 13.5px; color: var(--text-mute); }
.product-card li::before {
  content: ""; position: absolute; left: 0; top: 10px; width: 6px; height: 6px; border-radius: 50%;
  background: var(--grad-aurora);
}
.product-card__more { margin-top: auto; padding-top: 10px; }

/* 数据统计 */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.stat { padding: 26px 22px; border-radius: var(--radius); border: 1px solid var(--line); background: var(--surface); text-align: center; }
.stat__num { font-size: clamp(30px, 3.4vw, 44px); font-weight: 800; letter-spacing: -.02em; }
.stat__label { font-size: 13.5px; color: var(--text-mute); margin-top: 6px; }

/* -------------------------------- 分栏 -------------------------------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
.split--reverse .split__visual { order: -1; }

/* 联系页：表单卡片与左侧信息卡上下边缘对齐（同行拉伸） */
.contact-split { gap: 48px; align-items: stretch; }
.contact-cards { grid-template-rows: repeat(3, 1fr); }

.visual {
  position: relative; border-radius: var(--radius-l); border: 1px solid var(--line);
  background:
    radial-gradient(120% 120% at 20% 10%, rgba(59, 130, 246, .22), transparent 60%),
    radial-gradient(120% 120% at 80% 90%, rgba(139, 92, 246, .22), transparent 60%),
    linear-gradient(160deg, rgba(255, 255, 255, .05), rgba(255, 255, 255, .01));
  padding: 30px; overflow: hidden; min-height: 320px;
}
.visual__glow {
  position: absolute; width: 260px; height: 260px; border-radius: 50%; filter: blur(70px);
  background: radial-gradient(circle, rgba(16, 185, 129, .55), transparent 70%);
  right: -60px; bottom: -80px;
}

.panel {
  border-radius: var(--radius); border: 1px solid var(--line);
  background: rgba(6, 10, 20, .72); backdrop-filter: blur(12px);
  padding: 20px 22px;
}
.panel + .panel { margin-top: 16px; }
.panel__head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 14px; }
.panel__head span { font-size: 13px; color: var(--text-mute); }
.bar { height: 8px; border-radius: 999px; background: rgba(255, 255, 255, .07); overflow: hidden; }
.bar i { display: block; height: 100%; border-radius: 999px; background: var(--grad-aurora); width: 0; transition: width 1.6s var(--ease); }
.chart-bars { display: flex; align-items: flex-end; gap: 10px; height: 120px; }
.chart-bars i {
  flex: 1; border-radius: 6px 6px 2px 2px; height: 0;
  background: linear-gradient(180deg, #34d399, #2563eb);
  transition: height 1.4s var(--ease);
}

.check-list { display: grid; gap: 14px; margin-top: 26px; }
.check-list li { display: flex; gap: 12px; align-items: flex-start; font-size: 15px; color: var(--text-dim); }
.check-list li::before {
  content: "✓"; flex: 0 0 22px; width: 22px; height: 22px; border-radius: 50%;
  display: grid; place-items: center; font-size: 12px; color: #04060c;
  background: var(--grad-green-blue); margin-top: 4px;
}

/* -------------------------------- 流程 -------------------------------- */
.steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 18px; counter-reset: step; }
.step { position: relative; padding: 26px 22px; border-radius: var(--radius); border: 1px solid var(--line); background: var(--surface); }
.step__no {
  width: 40px; height: 40px; border-radius: 12px; display: grid; place-items: center;
  font-weight: 800; font-size: 15px; margin-bottom: 16px;
  background: rgba(255, 255, 255, .06); border: 1px solid var(--line-strong);
}
.step:nth-child(1) .step__no { color: #22d3ee; }
.step:nth-child(2) .step__no { color: #60a5fa; }
.step:nth-child(3) .step__no { color: #a78bfa; }
.step:nth-child(4) .step__no { color: #34d399; }
.step:nth-child(5) .step__no { color: #6ee7b7; }
.step h4 { font-size: 16px; margin-bottom: 8px; }
.step p { font-size: 13.5px; color: var(--text-mute); }

/* ------------------------------- 时间轴 ------------------------------- */
.timeline { position: relative; padding-left: 30px; }
.timeline::before {
  content: ""; position: absolute; left: 7px; top: 6px; bottom: 6px; width: 1px;
  background: linear-gradient(180deg, #22d3ee, #3b82f6, #8b5cf6, #10b981);
}
.timeline li { position: relative; padding-bottom: 34px; }
.timeline li::before {
  content: ""; position: absolute; left: -30px; top: 8px; width: 15px; height: 15px; border-radius: 50%;
  background: var(--bg); border: 2px solid var(--blue); box-shadow: 0 0 0 4px rgba(59, 130, 246, .12);
}
.timeline li:nth-child(2)::before { border-color: var(--purple); box-shadow: 0 0 0 4px rgba(139, 92, 246, .12); }
.timeline li:nth-child(3)::before { border-color: var(--green); box-shadow: 0 0 0 4px rgba(16, 185, 129, .12); }
.timeline li:nth-child(4)::before { border-color: var(--cyan); box-shadow: 0 0 0 4px rgba(34, 211, 238, .12); }
.timeline .year { font-size: 13px; font-weight: 700; letter-spacing: .12em; color: var(--green-light); }
.timeline h4 { font-size: 17px; margin: 4px 0 6px; }
.timeline p { font-size: 14px; color: var(--text-mute); }

/* ------------------------------- 徽标墙 ------------------------------ */
.chips { display: flex; flex-wrap: wrap; gap: 12px; }
.chip {
  padding: 9px 18px; border-radius: 999px; font-size: 13.5px; color: var(--text-dim);
  border: 1px solid var(--line); background: rgba(255, 255, 255, .03);
  transition: all .3s var(--ease);
}
.chip:hover { color: #fff; border-color: rgba(139, 92, 246, .55); transform: translateY(-2px); }

/* -------------------------------- CTA -------------------------------- */
.cta-band {
  position: relative; overflow: hidden; border-radius: var(--radius-l);
  border: 1px solid var(--line-strong); padding: 64px 48px; text-align: center;
  background:
    radial-gradient(90% 140% at 10% 0%, rgba(37, 99, 235, .35), transparent 60%),
    radial-gradient(90% 140% at 90% 100%, rgba(139, 92, 246, .35), transparent 60%),
    linear-gradient(120deg, rgba(16, 185, 129, .12), rgba(6, 10, 20, .6));
}
.cta-band::after {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(60% 100% at 50% 120%, rgba(16, 185, 129, .35), transparent 70%);
  pointer-events: none;
}
.cta-band > * { position: relative; z-index: 1; }
.cta-band .h2 { margin-bottom: 16px; }
.cta-band p { max-width: 620px; margin: 0 auto 32px; color: var(--text-dim); }

/* -------------------------------- 表单 -------------------------------- */
.field { display: grid; gap: 8px; margin-bottom: 18px; }
.field label { font-size: 13.5px; color: var(--text-dim); }
.field label i { color: #f87171; font-style: normal; }
.field input, .field textarea, .field select {
  width: 100%; padding: 13px 16px; border-radius: 12px;
  border: 1px solid var(--line); background: rgba(255, 255, 255, .035);
  color: var(--text); font-size: 14.5px; transition: border-color .3s var(--ease), background .3s var(--ease);
}
.field input::placeholder, .field textarea::placeholder { color: var(--text-mute); }
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none; border-color: rgba(139, 92, 246, .7); background: rgba(139, 92, 246, .06);
}
.field textarea { min-height: 130px; resize: vertical; }
.field--row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.form-note { font-size: 12.5px; color: var(--text-mute); margin-top: 14px; }
/* --------------------------- 表单结果弹窗 --------------------------- */
.form-modal {
  position: fixed; inset: 0; z-index: 1000; display: none;
  align-items: center; justify-content: center; padding: 24px;
  background: rgba(4, 6, 12, .72);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
}
.form-modal.is-open { display: flex; animation: fmFade .25s var(--ease); }
.form-modal__box {
  position: relative; width: 100%; max-width: 420px; text-align: center;
  padding: 46px 36px 36px; border-radius: var(--radius-l);
  border: 1px solid var(--line-strong);
  background: linear-gradient(160deg, #0c1220, #080c16);
  box-shadow: var(--shadow);
  animation: fmPop .4s var(--ease);
}
.form-modal__icon {
  width: 68px; height: 68px; margin: 0 auto 20px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 30px; font-weight: 700; color: #fff;
}
.form-modal--success .form-modal__icon {
  background: linear-gradient(135deg, var(--green), #0ea5e9);
  box-shadow: 0 0 44px rgba(16, 185, 129, .45);
}
.form-modal--error .form-modal__icon {
  background: linear-gradient(135deg, #ef4444, #f97316);
  box-shadow: 0 0 44px rgba(239, 68, 68, .4);
}
.form-modal__title { font-size: 20px; font-weight: 700; margin: 0 0 10px; }
.form-modal__text { font-size: 14.5px; color: var(--text-dim); line-height: 1.7; margin: 0 0 26px; }
.form-modal__close {
  position: absolute; top: 14px; right: 16px; width: 34px; height: 34px; border: 0; cursor: pointer;
  background: var(--surface); color: var(--text-dim); border-radius: 50%;
  font-size: 15px; line-height: 1; transition: color .2s, background .2s;
}
.form-modal__close:hover { color: #fff; background: var(--surface-strong); }
@keyframes fmFade { from { opacity: 0; } to { opacity: 1; } }
@keyframes fmPop { from { opacity: 0; transform: scale(.92) translateY(12px); } to { opacity: 1; transform: none; } }

/* ------------------------------ 面包屑 ------------------------------- */
.crumbs { display: flex; align-items: center; gap: 10px; font-size: 13px; color: var(--text-mute); margin-bottom: 18px; }
.crumbs a:hover { color: #fff; }

/* -------------------------------- 页脚 -------------------------------- */
.footer { border-top: 1px solid var(--line); background: linear-gradient(180deg, rgba(8, 12, 22, .8), #04060c); padding: 70px 0 30px; }
.footer__top { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: 40px; }
.footer__about p { font-size: 14px; color: var(--text-mute); margin-top: 18px; max-width: 320px; }
.footer h5 { font-size: 14px; letter-spacing: .1em; text-transform: uppercase; color: var(--text); margin-bottom: 18px; }
.footer ul { display: grid; gap: 11px; }
.footer ul a { font-size: 14px; color: var(--text-mute); transition: color .3s var(--ease), padding-left .3s var(--ease); }
.footer ul a:hover { color: #fff; padding-left: 4px; }
.footer__contact li { display: flex; gap: 10px; font-size: 14px; color: var(--text-mute); }
.footer__contact b { color: var(--text-dim); font-weight: 500; }
.footer__bottom {
  margin-top: 50px; padding-top: 24px; border-top: 1px solid var(--line);
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  font-size: 13px; color: var(--text-mute);
}
.socials { display: flex; gap: 10px; margin-top: 22px; }
.socials a {
  width: 38px; height: 38px; border-radius: 11px; display: grid; place-items: center;
  border: 1px solid var(--line); background: rgba(255, 255, 255, .04);
  font-size: 13px; color: var(--text-dim); transition: all .3s var(--ease);
}
.socials a:hover { color: #fff; border-color: rgba(139, 92, 246, .6); transform: translateY(-3px); }

/* ------------------------------- 动画 -------------------------------- */
.reveal { opacity: 0; transform: translateY(28px); }
.reveal.is-in {
  opacity: 1; transform: none;
  transition: opacity .9s var(--ease), transform .9s var(--ease);
}

@keyframes fadeUp { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: none; } }

@media (prefers-reduced-motion: reduce) {
  .blob, .brand__mark { animation: none; }
  .reveal { opacity: 1; transform: none; }
}

/* ------------------------------ 响应式 ------------------------------- */
@media (max-width: 1080px) {
  .submenu { width: 460px; grid-template-columns: 1fr 1fr; }
  .steps { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 900px) {
  .g-4 { grid-template-columns: repeat(2, 1fr); }
  .g-3 { grid-template-columns: repeat(2, 1fr); }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .split { grid-template-columns: 1fr; gap: 36px; }
  .contact-cards { grid-template-rows: none; }
  .split--reverse .split__visual { order: 0; }
  .footer__top { grid-template-columns: 1fr 1fr; gap: 32px; }
  .section { padding: 80px 0; }
}
@media (max-width: 768px) {
  .nav__menu { display: none; }
  .nav__menu.is-open {
    display: flex; flex-direction: column; align-items: stretch; gap: 6px;
    position: absolute; top: var(--nav-h); left: 16px; right: 16px; padding: 16px;
    border-radius: var(--radius); border: 1px solid var(--line);
    background: rgba(8, 12, 22, .97); backdrop-filter: blur(20px); box-shadow: var(--shadow);
    max-height: calc(100vh - var(--nav-h) - 30px); overflow-y: auto;
  }
  .nav__toggle { display: grid; }
  .nav__menu.is-open .nav__link { padding: 12px 14px; }
  .nav__menu.is-open .nav__cta { margin: 8px 0 0; height: 46px; }
  .has-sub > .nav__link::before { transform: translateY(-70%) rotate(-135deg); }
  .submenu {
    position: static; width: 100%; opacity: 1; visibility: visible; transform: none;
    box-shadow: none; background: transparent; border: none; padding: 4px 0 8px;
    grid-template-columns: 1fr; display: none;
  }
  .has-sub.is-open .submenu { display: grid; }
  .g-2, .g-3, .g-4 { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr 1fr; }
  .hero { min-height: auto; padding-top: calc(var(--nav-h) + 40px); }
  .cta-band { padding: 44px 24px; }
  .field--row { grid-template-columns: 1fr; }
  .container { width: calc(100% - 32px); }
}
@media (max-width: 560px) {
  .stats { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .footer__top { grid-template-columns: 1fr; }
  .hero__actions .btn { width: 100%; }
}