/* ============================================================
   惠州市硅星技术有限公司 · 官网样式
   深空科技风 · 霓虹青蓝 · 全特效
   ============================================================ */

:root {
  --bg-0: #05070f;
  --bg-1: #070b18;
  --bg-2: #0a1022;
  --panel: rgba(13, 20, 42, .62);
  --panel-solid: #0d142a;
  --line: rgba(120, 180, 255, .14);
  --line-strong: rgba(0, 240, 240, .35);
  --cyan: #00e5ff;
  --cyan-soft: #7df3ff;
  --blue: #4f7cff;
  --blue-soft: #8fa9ff;
  --violet: #8b5cf6;
  --ink: #eaf2ff;
  --muted: #93a4c9;
  --muted-2: #6b7ca3;
  --white: #ffffff;
  --radius: 20px;
  --radius-lg: 28px;
  --font: -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", "Source Han Sans SC", Arial, sans-serif;
  --mono: "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
  --glow-cyan: none;
  --glow-blue: none;
  --ease: cubic-bezier(.22, 1, .36, 1);

  /* 主题化背景块（默认=深色） */
  --header-bg: rgba(6, 10, 22, .92);
  --nav-mobile-bg: rgba(6, 10, 22, .97);
  --surface-soft: rgba(13, 20, 42, .55);
  --chip-bg: rgba(13, 20, 42, .7);
  --ticker-bg: rgba(8, 13, 28, .6);
  --track-bg: rgba(120, 180, 255, .1);
  --tint-strong: rgba(10, 18, 40, .65);
  --tint-mid: rgba(10, 18, 40, .6);
  --tint-soft: rgba(8, 12, 26, .8);
  --featured-bg: linear-gradient(160deg, rgba(0, 60, 90, .5), rgba(20, 30, 70, .6));
  --contact-bg: linear-gradient(150deg, rgba(10, 22, 46, .9), rgba(8, 12, 30, .92));
  --footer-bg: rgba(5, 8, 16, .9);
  --modal-overlay: rgba(3, 5, 12, .78);
  --modal-bg: linear-gradient(155deg, rgba(12, 24, 48, .98), rgba(8, 12, 30, .99));
  --modal-close-bg: rgba(10, 16, 34, .7);
  --preloader-tint: #0a1226;
  --selection-bg: rgba(0, 229, 255, .3);
  --selection-ink: #fff;
  --badge-ink: #03121a; /* 深色徽章文字（青蓝渐变底上） */
  --btn-ink: #03121a;   /* 主按钮文字（青蓝渐变底上） */
}

/* ============================================================
   浅色模式：覆盖上面所有深色变量为浅色
   ============================================================ */
body.light-mode {
  --bg-0: #f5f6fa;
  --bg-1: #ffffff;
  --bg-2: #eef0f6;
  --panel: rgba(255, 255, 255, .72);
  --panel-solid: #ffffff;
  --line: rgba(20, 40, 80, .12);
  --line-strong: rgba(20, 130, 200, .4);
  --cyan: #0a84ff;
  --cyan-soft: #1a5fbf;
  --blue: #2f6bff;
  --blue-soft: #4c7bef;
  --violet: #7a5cf0;
  --ink: #1d1d2b;
  --muted: #5a6478;
  --muted-2: #8a92a6;
  --white: #ffffff;

  --header-bg: rgba(255, 255, 255, .92);
  --nav-mobile-bg: rgba(255, 255, 255, .97);
  --surface-soft: rgba(255, 255, 255, .7);
  --chip-bg: rgba(255, 255, 255, .85);
  --ticker-bg: rgba(255, 255, 255, .65);
  --track-bg: rgba(30, 80, 160, .12);
  --tint-strong: rgba(230, 235, 244, .85);
  --tint-mid: rgba(230, 235, 244, .8);
  --tint-soft: rgba(230, 235, 244, .85);
  --featured-bg: linear-gradient(160deg, rgba(220, 235, 250, .9), rgba(230, 236, 250, .95));
  --contact-bg: linear-gradient(150deg, rgba(255, 255, 255, .92), rgba(238, 242, 250, .95));
  --footer-bg: rgba(240, 242, 248, .92);
  --modal-overlay: rgba(30, 40, 70, .4);
  --modal-bg: linear-gradient(155deg, rgba(255, 255, 255, .98), rgba(240, 243, 250, .99));
  --modal-close-bg: rgba(230, 234, 244, .8);
  --preloader-tint: #eef1f8;
  --selection-bg: rgba(10, 132, 255, .18);
  --selection-ink: #1d1d2b;
  /* 浅色模式下产品徽章是深蓝渐变底 → 文字用浅色才看得清 */
  --badge-ink: #ffffff;
  /* 浅色模式下主按钮是深蓝渐变底 → 文字用白色才看得清 */
  --btn-ink: #ffffff;
}

/* 浅色模式下背景光斑改为柔和淡彩（避免白底上过艳） */
body.light-mode .aurora {
  mix-blend-mode: multiply;
  opacity: .16;
}
body.light-mode .aurora-1 { background: radial-gradient(circle, rgba(90, 160, 255, .5), transparent 65%); }
body.light-mode .aurora-2 { background: radial-gradient(circle, rgba(150, 130, 255, .45), transparent 65%); }
body.light-mode .hero::before {
  background:
    radial-gradient(ellipse 60% 42% at 50% 8%, rgba(60, 130, 255, .08), transparent 60%),
    radial-gradient(ellipse 42% 34% at 82% 78%, rgba(90, 120, 255, .06), transparent 65%),
    radial-gradient(ellipse 36% 30% at 12% 72%, rgba(140, 110, 250, .06), transparent 60%);
}
/* 浅色模式下星空更淡，避免脏 */
body.light-mode .space-canvas { filter: brightness(1.6) opacity(.32); }
/* 浅色模式下「能回答/能工作」卡片去掉阴影 */
body.light-mode .neq-card { box-shadow: none; }

* { box-sizing: border-box; }
svg {
  display: inline-block;
  flex: none;
  max-width: none;
  vertical-align: middle;
}
html { scroll-behavior: smooth; scroll-padding-top: 84px; }

body {
  margin: 0;
  color: var(--ink);
  background: var(--bg-0);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
  cursor: none;
  transition: background .5s var(--ease), color .5s var(--ease);
}
@media (pointer: coarse) { body { cursor: auto; } }

a { color: inherit; text-decoration: none; }
button { font: inherit; }
img { display: block; max-width: 100%; }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4, p { margin: 0; overflow-wrap: anywhere; }

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

/* 细滚动条 */
::-webkit-scrollbar { width: 10px; }
::-webkit-scrollbar-track { background: var(--bg-0); }
::-webkit-scrollbar-thumb { background: linear-gradient(180deg, var(--bg-1), var(--bg-2)); border-radius: 99px; border: 2px solid var(--bg-0); }
::-webkit-scrollbar-thumb:hover { background: var(--muted-2); }

.shell { width: min(1180px, calc(100% - 48px)); margin: 0 auto; }
.section { position: relative; padding: 110px 0; }

/* ---------- 通用标题 ---------- */
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  margin: 0 0 20px;
  color: var(--cyan);
  font-size: 12px; font-weight: 800;
  letter-spacing: .22em; text-transform: uppercase;
}
.eyebrow::before {
  content: ""; width: 26px; height: 2px;
  background: linear-gradient(90deg, var(--cyan), transparent);
  box-shadow: var(--glow-cyan);
}
.sec-head { max-width: 860px; }
.sec-head h2 {
  margin: 0;
  font-size: clamp(32px, 4.6vw, 54px);
  line-height: 1.16; letter-spacing: -.03em;
  font-weight: 800;
}
.sec-lead {
  margin: 22px 0 0;
  max-width: 660px;
  color: var(--muted);
  font-size: clamp(16px, 1.6vw, 19px);
}
.sec-lead b { color: var(--cyan-soft); font-weight: 700; }
.grad-text {
  background: linear-gradient(92deg, var(--cyan) 0%, var(--blue-soft) 50%, var(--violet) 100%);
  background-size: 200% 100%;
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
  animation: gradShift 6s var(--ease) infinite;
}
@keyframes gradShift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

/* ---------- 背景层 ---------- */
.space-canvas {
  position: fixed; inset: 0;
  z-index: 0;
  pointer-events: none;
}
.aurora {
  position: fixed; z-index: 0;
  border-radius: 50%;
  filter: blur(90px);
  opacity: .22;
  pointer-events: none;
  mix-blend-mode: screen;
}
.aurora-1 {
  width: 640px; height: 640px;
  top: -180px; left: -160px;
  background: radial-gradient(circle, rgba(0, 229, 255, .5), transparent 65%);
  animation: drift1 22s ease-in-out infinite alternate;
}
.aurora-2 {
  width: 720px; height: 720px;
  bottom: -220px; right: -180px;
  background: radial-gradient(circle, rgba(79, 124, 255, .45), transparent 65%);
  animation: drift2 26s ease-in-out infinite alternate;
}
@keyframes drift1 {
  0% { transform: translate(0, 0) scale(1); }
  100% { transform: translate(120px, 90px) scale(1.25); }
}
@keyframes drift2 {
  0% { transform: translate(0, 0) scale(1.1); }
  100% { transform: translate(-110px, -70px) scale(.9); }
}
.grid-overlay {
  /* 背景网格已移除 */
}

/* ---------- 预加载 ---------- */
.preloader {
  position: fixed; inset: 0; z-index: 200;
  display: grid; place-items: center;
  background: radial-gradient(circle at 50% 40%, var(--preloader-tint), var(--bg-0) 70%);
  transition: opacity .7s ease, visibility .7s ease;
}
.preloader.done { opacity: 0; visibility: hidden; }
.preloader-inner {
  position: relative;
  display: flex; flex-direction: column;
  align-items: center;
  transform: translateY(-26px);
}
.preloader-mark {
  position: relative;
  width: 84px; height: 84px;
  display: grid; place-items: center;
}
.preloader-logo { width: 84px; height: 84px; animation: logoFloat 2.2s ease-in-out infinite; }
.preloader-ring {
  position: absolute; inset: -14px;
  border: 2px solid transparent;
  border-top-color: var(--cyan);
  border-right-color: var(--blue);
  border-radius: 50%;
  animation: spin 1.4s linear infinite;
}
.preloader-ring::after {
  content: ""; position: absolute; inset: -30px;
  border: 1px dashed rgba(0, 229, 255, .3);
  border-radius: 50%;
  animation: spin 9s linear infinite reverse;
}
.preloader-bar {
  margin-top: 64px;
  width: 180px; height: 3px;
  background: var(--track-bg);
  border-radius: 99px; overflow: hidden;
}
.preloader-bar span {
  display: block; height: 100%; width: 40%;
  background: linear-gradient(90deg, var(--cyan), var(--blue));
  border-radius: 99px;
  animation: loadSlide 1.2s var(--ease) infinite;
  box-shadow: var(--glow-cyan);
}
@keyframes loadSlide {
  0% { transform: translateX(-110%); }
  100% { transform: translateX(320%); }
}
.preloader-text {
  margin-top: 12px;
  color: var(--muted); font-size: 13px; letter-spacing: .18em; white-space: nowrap;
}
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes logoFloat {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-8px) scale(1.04); }
}

/* ---------- 自定义光标 ---------- */
.cursor-glow, .cursor-dot {
  position: fixed; top: 0; left: 0;
  z-index: 500;
  pointer-events: none;
  border-radius: 50%;
  transform: translate(-50%, -50%);
  will-change: transform;
}
.cursor-glow {
  width: 44px; height: 44px;
  border: 1.5px solid rgba(0, 229, 255, .55);
  background: rgba(0, 229, 255, .06);
  transition: width .25s var(--ease), height .25s var(--ease), border-color .25s, background .25s;
}
.cursor-dot {
  width: 6px; height: 6px;
  background: var(--cyan-soft);
}
body.cursor-hover .cursor-glow {
  width: 74px; height: 74px;
  border-color: var(--cyan);
  background: rgba(0, 229, 255, .1);
}
@media (pointer: coarse) { .cursor-glow, .cursor-dot { display: none; } }

/* ---------- 滚动进度 ---------- */
.scroll-progress {
  position: fixed; top: 0; left: 0; z-index: 190;
  height: 3px; width: 0%;
  background: linear-gradient(90deg, var(--cyan), var(--blue), var(--violet));
}

/* ---------- 导航 ---------- */
.site-header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  transition: background .35s ease, border-color .35s ease, backdrop-filter .35s ease;
  border-bottom: 1px solid transparent;
}
.site-header.scrolled {
  background: var(--header-bg);
  border-bottom-color: var(--line);
}
.nav-wrap {
  min-height: 76px;
  display: flex; align-items: center; gap: 30px;
}
.brand { display: flex; align-items: center; gap: 12px; font-weight: 800; font-size: 19px; letter-spacing: .04em; }
.brand-logo {
  width: 38px; height: 38px;
}
.brand-text { white-space: nowrap; }
.brand-text em { font-style: normal; color: var(--cyan); }
.nav-links { display: flex; gap: 6px; margin-left: auto; }
/* 仅移动端抽屉使用的元素：桌面隐藏 */
.nav-backdrop { display: none; }
.nav-close-row, .nav-cta-row, .nav-contact-row { display: none; }
.nav-link {
  position: relative;
  padding: 8px 14px;
  color: var(--muted);
  font-size: 14.5px; font-weight: 600;
  border-radius: 10px;
  transition: color .25s;
}
.nav-link::after {
  content: ""; position: absolute; left: 14px; right: 14px; bottom: 3px;
  height: 2px; border-radius: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--blue));
  transform: scaleX(0); transform-origin: left;
  transition: transform .3s var(--ease);
}
.nav-link:hover, .nav-link.active { color: var(--ink); }
.nav-link:hover::after, .nav-link.active::after { transform: scaleX(1); }
.nav-toggle {
  display: none;
  margin-left: auto;
  width: 40px; height: 40px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface-soft);
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  padding: 0;
  transition: background .3s var(--ease), border-color .3s;
}
.nav-toggle:hover { border-color: var(--line-strong); }
.nav-toggle span {
  display: block; width: 18px; height: 2px; margin: 0 auto;
  background: var(--cyan-soft);
  border-radius: 2px;
  transition: transform .3s var(--ease), opacity .3s;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- 主题切换按钮 ---------- */
.theme-toggle {
  position: relative;
  flex: none;
  width: 40px; height: 40px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface-soft);
  color: var(--cyan-soft);
  cursor: pointer;
  overflow: hidden;
  transition: background .35s var(--ease), border-color .35s, color .35s;
}
.theme-toggle:hover { border-color: var(--line-strong); }
.theme-icon {
  position: absolute; top: 50%; left: 50%;
  font-size: 17px; line-height: 1;
  transform: translate(-50%, -50%);
  transition: opacity .35s var(--ease), transform .45s var(--ease);
}
/* 深色模式默认显示太阳图标（点击切到浅色） */
.theme-icon-sun { opacity: 1; transform: translate(-50%, -50%) rotate(0); }
.theme-icon-moon { opacity: 0; transform: translate(-50%, 140%) rotate(90deg); }
/* 浅色模式显示月亮图标（点击切回深色） */
body.light-mode .theme-icon-sun { opacity: 0; transform: translate(-50%, -140%) rotate(-90deg); }
body.light-mode .theme-icon-moon { opacity: 1; transform: translate(-50%, -50%) rotate(0); }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 50px; padding: 0 26px;
  border-radius: 14px;
  font-weight: 700; font-size: 15px;
  cursor: pointer;
  transition: transform .25s var(--ease), box-shadow .25s, background .25s, border-color .25s, color .25s;
  white-space: nowrap;
}
.btn-primary {
  color: var(--btn-ink);
  background: linear-gradient(135deg, var(--cyan), var(--blue-soft));
  border: 1px solid rgba(255, 255, 255, .35);
  box-shadow: 0 6px 20px rgba(0, 0, 0, .28);
}
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 10px 28px rgba(0, 0, 0, .36); }
.btn-glass {
  color: var(--ink);
  background: var(--surface-soft);
  border: 1px solid var(--line-strong);
  backdrop-filter: blur(10px);
}
.btn-glass:hover { transform: translateY(-3px); border-color: var(--cyan); box-shadow: var(--glow-cyan); background: var(--panel); }
.btn-ghost { color: var(--cyan-soft); background: transparent; border: 1px solid var(--line-strong); }
.btn-ghost:hover { background: rgba(120, 180, 255, .1); }
.btn-nav-cta { min-height: 42px; padding: 0 18px; font-size: 14px; border-radius: 12px; }
.play-ico { font-size: 12px; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex; align-items: center;
  padding: 140px 0 120px;
  overflow: hidden;
}
.hero::before {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(ellipse 60% 42% at 50% 8%, rgba(0, 229, 255, .06), transparent 60%),
    radial-gradient(ellipse 42% 34% at 82% 78%, rgba(79, 124, 255, .05), transparent 65%),
    radial-gradient(ellipse 36% 30% at 12% 72%, rgba(139, 92, 246, .04), transparent 60%);
  pointer-events: none;
}
.hero-inner { position: relative; z-index: 2; }
.hero-eyebrow {
  color: var(--cyan-soft);
  font-family: var(--mono);
  letter-spacing: .3em;
}
.hero-title {
  margin-top: 26px;
  font-size: clamp(34px, 6.2vw, 74px);
  line-height: 1.06; letter-spacing: -.04em;
  font-weight: 900;
}
.typing-wrap {
  display: block;
  width: 100%;
  max-width: 100%;
  margin-top: 18px;
  font-weight: 700;
  letter-spacing: -.01em;
  line-height: 1.35;
  white-space: nowrap;
}
.typing { color: var(--cyan-soft); }
.type-caret {
  display: inline-block; width: 3px; height: .92em;
  margin-left: 6px;
  vertical-align: text-bottom;
  background: var(--cyan);
  animation: blink 1s steps(1) infinite;
}
@keyframes blink { 50% { opacity: 0; } }
.hero-sub {
  margin-top: 30px;
  max-width: 660px;
  color: var(--muted);
  font-size: clamp(17px, 1.9vw, 21px);
}
.hero-sub b { color: var(--cyan-soft); font-weight: 700; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 16px; margin-top: 40px; }
.hero-tags {
  display: flex; flex-wrap: wrap; gap: 10px;
  margin-top: 46px;
}
.hero-tags li {
  padding: 8px 16px;
  color: var(--muted);
  font-size: 13px; font-weight: 600;
  background: var(--surface-soft);
  border: 1px solid var(--line);
  border-radius: 999px;
  backdrop-filter: blur(8px);
  transition: border-color .3s, color .3s, box-shadow .3s;
}
.hero-tags li:hover { color: var(--cyan-soft); border-color: var(--line-strong); box-shadow: var(--glow-cyan); }

.hero-star-badge {
  position: absolute; z-index: 2;
  right: 9vw; top: 50%;
  transform: translateY(-50%);
  width: 200px; height: 200px;
  display: grid; place-items: center;
  animation: badgeFloat 6s ease-in-out infinite;
  pointer-events: none;
}
.hero-star-badge img {
  width: 120px; height: 120px;
  opacity: .92;
}
.orbit {
  position: absolute; border-radius: 50%;
  border: 1px dashed rgba(0, 229, 255, .4);
}
.orbit-1 { inset: 5px; animation: spin 14s linear infinite; }
.orbit-2 { inset: 22px; border-color: rgba(139, 92, 246, .35); animation: spin 22s linear infinite reverse; }
.orbit-1::after, .orbit-2::after {
  content: ""; position: absolute;
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--cyan);
}
.orbit-1::after { top: -5px; left: 50%; transform: translateX(-50%); }
.orbit-2::after { bottom: -5px; left: 50%; transform: translateX(-50%); background: var(--violet); }
@keyframes badgeFloat {
  0%, 100% { transform: translateY(-50%) translateY(0); }
  50% { transform: translateY(-50%) translateY(-14px); }
}

.hero-scroll {
  position: absolute; z-index: 2;
  left: 50%; bottom: 30px;
  transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  color: var(--muted-2); font-size: 12px; letter-spacing: .3em;
  animation: scrollHint 2.4s ease-in-out infinite;
}
.scroll-mouse {
  width: 26px; height: 42px;
  border: 2px solid var(--line-strong);
  border-radius: 14px;
  position: relative;
}
.scroll-mouse i {
  position: absolute; top: 8px; left: 50%;
  width: 4px; height: 8px; margin-left: -2px;
  border-radius: 4px;
  background: var(--cyan);
  animation: wheel 1.8s ease-in-out infinite;
}
@keyframes wheel {
  0% { transform: translateY(0); opacity: 1; }
  70% { transform: translateY(14px); opacity: 0; }
  100% { transform: translateY(0); opacity: 0; }
}
@keyframes scrollHint {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(-6px); }
}

/* ---------- 跑马灯 ---------- */
.ticker {
  position: relative; z-index: 2;
  overflow: hidden;
  padding: 18px 0;
  background: var(--ticker-bg);
  backdrop-filter: blur(8px);
}
.ticker::before, .ticker::after {
  content: ""; position: absolute; top: 0; bottom: 0; width: 120px; z-index: 2;
  pointer-events: none;
}
.ticker::before { left: 0; background: linear-gradient(90deg, var(--bg-0), transparent); }
.ticker::after { right: 0; background: linear-gradient(-90deg, var(--bg-0), transparent); }
.ticker-track {
  display: flex; gap: 34px; align-items: center;
  width: max-content;
  animation: tickerMove 30s linear infinite;
}
.ticker:hover .ticker-track { animation-play-state: paused; }
.ticker-track span {
  color: var(--muted);
  font-size: 14px; font-weight: 700; letter-spacing: .08em;
  white-space: nowrap;
}
.ticker-track i {
  flex: none;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--blue-soft);
}
@keyframes tickerMove { to { transform: translateX(-50%); } }

/* ---------- 问题断层 ---------- */
#gap { z-index: 2; }
.neq-display {
  display: flex; align-items: center; justify-content: center; gap: clamp(18px, 4vw, 56px);
  margin: 64px 0;
}
.neq-card {
  width: clamp(150px, 20vw, 230px);
  padding: 30px 20px;
  text-align: center;
  font-size: clamp(30px, 4vw, 44px); font-weight: 900;
  color: var(--ink);
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(12px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, .4);
  transition: transform .4s var(--ease), box-shadow .4s, border-color .4s;
}
.neq-card span { display: block; margin-top: 6px; font-size: 15px; color: var(--muted); font-weight: 600; letter-spacing: .3em; }
.neq-card.accent {
  color: var(--cyan-soft);
  border-color: var(--line-strong);
  box-shadow: 0 20px 60px rgba(0, 0, 0, .4);
}
.neq-card:hover { transform: translateY(-8px); }
.neq-symbol {
  font-size: clamp(40px, 6vw, 72px);
  font-weight: 900;
  background: linear-gradient(180deg, var(--violet), var(--blue));
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
  animation: neqPulse 2.6s ease-in-out infinite;
}
@keyframes neqPulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: .6; transform: scale(1.15); }
}

.gap-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px;
  margin-top: 56px;
}
.gap-card {
  position: relative;
  padding: 30px 26px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  backdrop-filter: blur(12px);
  overflow: hidden;
  transition: transform .35s var(--ease), border-color .35s, box-shadow .35s;
}
.gap-card::before {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--blue), transparent);
  opacity: 0; transition: opacity .35s;
}
.gap-card:hover { transform: translateY(-8px); border-color: var(--line-strong); box-shadow: var(--glow-cyan); }
.gap-card:hover::before { opacity: 1; }
.gap-num {
  display: inline-block;
  font-family: var(--mono); font-size: 13px; font-weight: 800;
  color: var(--cyan);
  padding: 4px 10px;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
  margin-bottom: 22px;
}
.gap-card h3 { font-size: 19px; margin-bottom: 10px; }
.gap-card p { color: var(--muted); font-size: 14.5px; }
.gap-bars { height: 4px; margin-top: 22px; background: rgba(120, 180, 255, .1); border-radius: 99px; overflow: hidden; }
.gap-bars i {
  display: block; height: 100%; width: var(--w);
  background: linear-gradient(90deg, var(--cyan), var(--blue));
  border-radius: 99px;
  animation: barGrow 1.6s var(--ease) both;
}
@keyframes barGrow { from { width: 0; } }

/* ---------- FDE 方法 ---------- */
.fde-section {
  background: linear-gradient(180deg, transparent, var(--tint-strong) 18%, var(--tint-strong) 82%, transparent);
  overflow: hidden;
}
.fde-cycle {
  display: grid; grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr;
  align-items: stretch; gap: 10px;
  margin-top: 60px;
}
.fde-step {
  position: relative;
  padding: 34px 22px;
  text-align: center;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  backdrop-filter: blur(12px);
  transition: transform .4s var(--ease), border-color .4s, box-shadow .4s;
  overflow: hidden;
}
.fde-step::after {
  content: ""; position: absolute; inset: -40%;
  background: radial-gradient(circle at 50% 120%, rgba(0, 229, 255, .12), transparent 55%);
  opacity: 0; transition: opacity .5s;
  pointer-events: none;
}
.fde-step:hover { transform: translateY(-10px) scale(1.02); border-color: var(--line-strong); box-shadow: var(--glow-cyan); }
.fde-step:hover::after { opacity: 1; }
.fde-ico {
  display: grid; place-items: center;
  width: 62px; height: 62px; margin: 0 auto 18px;
  font-size: 26px;
  color: var(--cyan-soft);
  background: var(--surface-soft);
  border: 1px solid var(--line-strong);
  border-radius: 18px;
}
.fde-step b {
  display: block;
  font-size: 22px; font-weight: 800;
  color: var(--cyan-soft);
}
.fde-step p { margin-top: 12px; color: var(--muted); font-size: 14px; }
.fde-arrow {
  display: grid; place-items: center;
  color: var(--blue-soft);
  font-size: 26px; font-weight: 700;
  animation: arrowPulse 2s ease-in-out infinite;
}
@keyframes arrowPulse {
  0%, 100% { transform: translateX(0); opacity: .7; }
  50% { transform: translateX(6px); opacity: 1; }
}

.fde-track { position: relative; height: 60px; margin-top: 50px; }
.fde-track-line {
  position: absolute; top: 50%; left: 0; right: 0; height: 2px;
  background: var(--track-bg);
  border-radius: 2px;
  transform: translateY(-50%);
}
.fde-track-line i {
  display: block; height: 100%; width: 0%;
  background: linear-gradient(90deg, var(--cyan), var(--blue), var(--violet));
  transition: width 2.4s var(--ease);
}
.fde-pulse {
  position: absolute; top: 50%; left: 0;
  width: 14px; height: 14px; margin: -7px 0 0 -7px;
  border-radius: 50%;
  background: var(--cyan);
  transition: left 2.4s var(--ease);
}
.fde-track.line-on .fde-track-line i { width: 100%; }
.fde-track.line-on .fde-pulse { left: 100%; }
.fde-notes {
  display: flex; flex-wrap: wrap; gap: 12px;
  justify-content: center; margin-top: 8px;
}
.note-chip {
  padding: 10px 18px;
  color: var(--muted);
  font-size: 13.5px;
  background: var(--chip-bg);
  border: 1px dashed var(--line-strong);
  border-radius: 999px;
}

/* ---------- 岗位场景 ---------- */
#roles { z-index: 2; }
.role-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px;
  margin-top: 56px;
  perspective: 1200px;
}
.role-card {
  position: relative;
  padding: 34px 28px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  backdrop-filter: blur(12px);
  transform-style: preserve-3d;
  transition: transform .3s var(--ease), box-shadow .4s, border-color .4s;
  overflow: hidden;
}
.role-card::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(420px circle at var(--mx, 50%) var(--my, 50%), rgba(0, 229, 255, .06), transparent 45%);
  opacity: 0; transition: opacity .4s;
  pointer-events: none;
}
.role-card:hover::before { opacity: 1; }
.role-card:hover { border-color: var(--line-strong); box-shadow: var(--glow-cyan); }
.role-char {
  display: grid; place-items: center;
  width: 54px; height: 54px;
  font-size: 24px; font-weight: 900;
  color: var(--cyan-soft);
  background: linear-gradient(135deg, rgba(0, 229, 255, .16), rgba(79, 124, 255, .16));
  border: 1px solid var(--line-strong);
  border-radius: 16px;
  margin-bottom: 20px;
}
.role-card h3 { font-size: 20px; margin-bottom: 4px; }
.role-card > p { color: var(--cyan-soft); font-size: 14.5px; font-weight: 600; margin-bottom: 18px; }
.role-card ul { display: grid; gap: 8px; }
.role-card li {
  position: relative;
  padding-left: 18px;
  color: var(--muted); font-size: 14px;
}
.role-card li::before {
  content: ""; position: absolute; left: 0; top: .62em;
  width: 6px; height: 6px;
  background: var(--blue-soft);
  border-radius: 2px;
  transform: rotate(45deg);
}
.role-note {
  margin-top: 26px;
  color: var(--muted-2); font-size: 13px; text-align: center;
}

/* ---------- 先诊断再决定 ---------- */
.diagnose-section {
  background: linear-gradient(180deg, transparent, var(--tint-mid), transparent);
  overflow: hidden;
}
.diagnose-grid {
  display: grid; grid-template-columns: 1fr 1.1fr; gap: 70px;
  align-items: center;
}
.diagnose-steps { display: grid; gap: 14px; counter-reset: d; }
.diagnose-steps li {
  display: flex; gap: 22px; align-items: center;
  padding: 26px 28px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  backdrop-filter: blur(10px);
  transition: transform .35s var(--ease), border-color .35s, box-shadow .35s;
}
.diagnose-steps li:hover { transform: translateX(8px); border-color: var(--line-strong); box-shadow: var(--glow-cyan); }
.d-num {
  flex: none;
  display: grid; place-items: center;
  width: 52px; height: 52px;
  font-family: var(--mono); font-size: 16px; font-weight: 800;
  color: var(--cyan-soft);
  border: 1px solid var(--line-strong);
  border-radius: 14px;
}
.diagnose-steps h3 { font-size: 19px; }
.diagnose-steps p { color: var(--muted); font-size: 14.5px; margin-top: 4px; }

/* ---------- 产品与价格 ---------- */
#products { z-index: 2; }
.product-list {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px;
  margin-top: 56px;
}
.product-card {
  position: relative;
  display: flex; flex-direction: column;
  padding: 32px 28px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  backdrop-filter: blur(12px);
  transition: transform .35s var(--ease), border-color .35s, box-shadow .35s;
  overflow: hidden;
}
.product-card::after {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 3px;
  background: linear-gradient(90deg, transparent, var(--cyan), transparent);
  opacity: 0; transition: opacity .4s;
}
.product-card:hover { transform: translateY(-10px); border-color: var(--line-strong); box-shadow: var(--glow-cyan); }
.product-card:hover::after { opacity: .8; }
.product-card.featured {
  border-color: var(--line-strong);
  background: var(--featured-bg);
}
.product-badge {
  position: absolute; top: 20px; right: 20px;
  padding: 4px 12px;
  font-size: 12px; font-weight: 800; letter-spacing: .1em;
  color: var(--badge-ink);
  background: linear-gradient(90deg, var(--cyan), var(--blue-soft));
  border-radius: 999px;
  box-shadow: var(--glow-cyan);
}
.product-top { display: flex; align-items: center; gap: 14px; margin-bottom: 16px; }
.product-idx {
  font-family: var(--mono); font-size: 13px; font-weight: 800;
  color: var(--cyan);
  padding: 4px 9px;
  border: 1px solid var(--line-strong);
  border-radius: 8px;
}
.product-card h3 { font-size: 20px; }
.product-card > p { color: var(--muted); font-size: 14.5px; flex: 1; }
.product-meta {
  display: flex; align-items: flex-end; justify-content: space-between; gap: 12px;
  margin-top: 24px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}
.p-dur {
  flex: none;
  padding: 5px 12px;
  color: var(--muted);
  font-size: 13px; font-weight: 600;
  background: var(--track-bg);
  border-radius: 8px;
  white-space: nowrap;
}
.p-out {
  text-align: right;
  color: var(--cyan-soft);
  font-size: 13px; font-weight: 600;
  line-height: 1.5;
}
.p-cta { margin-top: 16px; color: var(--muted-2); font-size: 13px; border-left: 2px solid var(--line-strong); padding-left: 12px; }
.fine-print {
  margin-top: 26px;
  color: var(--muted-2); font-size: 13px;
  border-left: 2px solid var(--line-strong);
  padding-left: 14px;
}

/* ---------- 交付标准 ---------- */
.standard-section {
  background: linear-gradient(180deg, transparent, var(--tint-mid), transparent);
  text-align: center;
}
.standard-section .sec-head, .standard-section .sec-lead { margin-left: auto; margin-right: auto; }
.standard-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
  margin-top: 60px;
}
.std-card {
  padding: 44px 30px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(12px);
  transition: transform .4s var(--ease), border-color .4s, box-shadow .4s;
}
.std-card:hover { transform: translateY(-10px); border-color: var(--line-strong); box-shadow: var(--glow-cyan); }
.std-orb {
  position: relative;
  display: grid; place-items: center;
  width: 92px; height: 92px; margin: 0 auto 26px;
  font-size: 34px;
  color: var(--cyan-soft);
  border-radius: 50%;
  border: 1px solid var(--line-strong);
  background: radial-gradient(circle at 35% 30%, var(--surface-soft), var(--panel));
  animation: orbFloat 4s ease-in-out infinite;
}
.std-orb::before {
  content: ""; position: absolute; inset: -8px;
  border-radius: 50%;
  border: 1px dashed rgba(0, 229, 255, .35);
  animation: spin 10s linear infinite;
}
.std-card:nth-child(2) .std-orb { animation-delay: .6s; }
.std-card:nth-child(3) .std-orb { animation-delay: 1.2s; }
@keyframes orbFloat {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}
.std-card h3 { font-size: 24px; margin-bottom: 12px; }
.std-card p { color: var(--muted); font-size: 15px; }
.std-summary {
  margin-top: 44px;
  font-size: clamp(16px, 1.8vw, 20px); font-weight: 600;
  color: var(--cyan-soft);
}

/* ---------- 交付流程 G0–G7 ---------- */
#process { z-index: 2; }
.gate-list {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px;
  margin-top: 56px;
}
.gate {
  position: relative;
  padding: 28px 24px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  backdrop-filter: blur(10px);
  transition: transform .35s var(--ease), border-color .35s, box-shadow .35s;
  overflow: hidden;
}
.gate::before {
  content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 3px;
  background: linear-gradient(180deg, var(--cyan), var(--blue));
  opacity: 0; transition: opacity .35s;
}
.gate:hover { transform: translateY(-8px); border-color: var(--line-strong); box-shadow: var(--glow-cyan); }
.gate:hover::before { opacity: 1; }
.gate-idx {
  display: inline-block;
  font-family: var(--mono); font-size: 15px; font-weight: 800;
  color: var(--cyan-soft);
  margin-bottom: 14px;
}
.gate h3 { font-size: 18px; margin-bottom: 8px; }
.gate p { color: var(--muted); font-size: 13.8px; }

/* ---------- 数据安全 ---------- */
.security-section {
  background: linear-gradient(180deg, transparent, var(--tint-soft), transparent);
}
.security-grid { display: grid; grid-template-columns: 1fr 1.1fr; gap: 70px; align-items: start; }
.security-points { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.security-points article {
  padding: 26px 24px;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  backdrop-filter: blur(10px);
  transition: border-color .3s, box-shadow .3s, transform .3s;
}
.security-points article:hover { border-color: var(--line-strong); box-shadow: var(--glow-cyan); transform: translateY(-4px); }
.security-points b {
  display: block; margin-bottom: 10px;
  font-size: 17px; color: var(--cyan-soft);
}
.security-points p { color: var(--muted); font-size: 14px; }

/* ---------- FAQ ---------- */
#faq { z-index: 2; }
.faq-grid { display: grid; grid-template-columns: .8fr 1.2fr; gap: 70px; align-items: start; }
.faq-list { display: grid; gap: 12px; }
.faq-item {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 16px;
  backdrop-filter: blur(10px);
  overflow: hidden;
  transition: border-color .3s, box-shadow .3s;
}
.faq-item[open] { border-color: var(--line-strong); box-shadow: var(--glow-cyan); }
.faq-item summary {
  position: relative;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 22px 24px;
  font-weight: 700; font-size: 16px;
  cursor: pointer;
  list-style: none;
  user-select: none;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-plus {
  flex: none;
  position: relative; width: 22px; height: 22px;
}
.faq-plus::before, .faq-plus::after {
  content: ""; position: absolute; top: 50%; left: 50%;
  width: 14px; height: 2px;
  background: var(--cyan);
  transform: translate(-50%, -50%);
  transition: transform .35s var(--ease);
}
.faq-plus::after { transform: translate(-50%, -50%) rotate(90deg); }
.faq-item[open] .faq-plus::after { transform: translate(-50%, -50%) rotate(0deg); }
.faq-item p {
  padding: 0 24px 24px;
  color: var(--muted); font-size: 14.5px;
}

/* ---------- 联系 CTA ---------- */
.contact-section { padding-bottom: 120px; z-index: 2; }
.contact-card {
  position: relative;
  display: grid; grid-template-columns: 1.1fr .9fr; gap: 60px;
  padding: clamp(36px, 5vw, 64px);
  background: var(--contact-bg);
  border: 1px solid var(--line-strong);
  border-radius: 30px;
  backdrop-filter: blur(16px);
  overflow: hidden;
}
.contact-glow {
  position: absolute; inset: 0;
  pointer-events: none;
}
.contact-left, .contact-right { position: relative; z-index: 2; }
.contact-left h2 { font-size: clamp(30px, 4vw, 46px); line-height: 1.15; }
.contact-actions { display: flex; align-items: center; gap: 16px; margin-top: 32px; flex-wrap: wrap; }
.copy-status { color: var(--cyan-soft); font-size: 13.5px; font-weight: 600; opacity: 0; transition: opacity .3s; }
.copy-status.show { opacity: 1; }
.fit-label { font-weight: 700; margin-bottom: 14px; color: var(--cyan-soft); }
.fit-questions {
  display: grid; gap: 10px;
  margin-bottom: 26px;
  counter-reset: fq;
}
.fit-questions li {
  position: relative;
  padding: 12px 16px 12px 46px;
  color: var(--muted); font-size: 14.5px;
  background: var(--chip-bg);
  border: 1px solid var(--line);
  border-radius: 12px;
  counter-increment: fq;
}
.fit-questions li::before {
  content: counter(fq);
  position: absolute; left: 14px; top: 50%;
  transform: translateY(-50%);
  font-family: var(--mono); font-size: 12px; font-weight: 800;
  color: var(--cyan);
}
.company-chip {
  display: flex; align-items: center; gap: 16px;
  padding: 18px 20px;
  background: var(--chip-bg);
  border: 1px solid var(--line);
  border-radius: 16px;
}
.company-chip img { width: 46px; height: 46px; }
.company-chip b { display: block; font-size: 15px; margin-bottom: 4px; }
.company-chip span { display: block; color: var(--muted); font-size: 12.8px; line-height: 1.55; }
.chip-phone { margin-top: 6px !important; color: var(--cyan-soft); font-family: var(--mono); font-size: 13px; letter-spacing: .02em; }

/* ---------- 页脚 ---------- */
.site-footer {
  position: relative; z-index: 2;
  background: var(--footer-bg);
  padding: 64px 0 30px;
}
.footer-grid {
  display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 44px;
  padding-bottom: 44px;
  border-bottom: 1px solid var(--line);
}
.footer-brand p { margin-top: 16px; color: var(--muted); font-size: 14px; line-height: 1.8; }
.footer-col h4 {
  margin-bottom: 18px;
  font-size: 14px; letter-spacing: .12em;
  color: var(--cyan-soft);
}
.footer-col a {
  display: block;
  margin-bottom: 10px;
  color: var(--muted); font-size: 14px;
  transition: color .25s, transform .25s;
}
.footer-col a:hover { color: var(--cyan-soft); transform: translateX(4px); }
.footer-company { display: block; width: 100%; text-align: left; font-weight: 700; color: var(--ink); font-size: 14.5px; margin-bottom: 10px; background: none; border: none; padding: 0; cursor: pointer; transition: color .25s; }
.footer-company:hover { color: var(--cyan-soft); }
.footer-addr { display: block; width: 100%; text-align: left; color: var(--muted); font-size: 13.5px; line-height: 1.8; margin-bottom: 10px; background: none; border: none; padding: 0; cursor: pointer; transition: color .25s; }
.footer-addr:hover { color: var(--cyan-soft); }
.footer-phone {
  display: flex; flex-direction: column; gap: 6px;
}
.footer-phone a {
  display: inline-flex; align-items: center; gap: 8px;
  color: var(--cyan-soft); font-size: 14px; font-weight: 700;
  font-family: var(--mono); letter-spacing: .02em;
}
.footer-phone a::before {
  content: "";
  flex: none;
  width: 14px; height: 14px;
  background: currentColor;
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M22 16.92v3a2 2 0 0 1-2.18 2 19.79 19.79 0 0 1-8.63-3.07 19.5 19.5 0 0 1-6-6 19.79 19.79 0 0 1-3.07-8.67A2 2 0 0 1 4.11 2h3a2 2 0 0 1 2 1.72 12.84 12.84 0 0 0 .7 2.81 2 2 0 0 1-.45 2.11L8.09 9.91a16 16 0 0 0 6 6l1.27-1.27a2 2 0 0 1 2.11-.45 12.84 12.84 0 0 0 2.81.7A2 2 0 0 1 22 16.92z'/%3E%3C/svg%3E") center / contain no-repeat;
          mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M22 16.92v3a2 2 0 0 1-2.18 2 19.79 19.79 0 0 1-8.63-3.07 19.5 19.5 0 0 1-6-6 19.79 19.79 0 0 1-3.07-8.67A2 2 0 0 1 4.11 2h3a2 2 0 0 1 2 1.72 12.84 12.84 0 0 0 .7 2.81 2 2 0 0 1-.45 2.11L8.09 9.91a16 16 0 0 0 6 6l1.27-1.27a2 2 0 0 1 2.11-.45 12.84 12.84 0 0 0 2.81.7A2 2 0 0 1 22 16.92z'/%3E%3C/svg%3E") center / contain no-repeat;
}
.footer-bottom {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding-top: 26px;
  color: var(--muted-2); font-size: 13px;
  flex-wrap: wrap;
}
.footer-motto { color: var(--cyan-soft); letter-spacing: .1em; }

/* ---------- 回到顶部 ---------- */
.back-top {
  position: fixed; right: 26px; bottom: 26px; z-index: 150;
  width: 48px; height: 48px;
  border-radius: 14px;
  border: 1px solid var(--line-strong);
  background: var(--chip-bg);
  color: var(--cyan-soft);
  font-size: 20px;
  cursor: pointer;
  backdrop-filter: blur(10px);
  opacity: 0; visibility: hidden; transform: translateY(16px);
  transition: opacity .35s, visibility .35s, transform .35s, box-shadow .35s;
}
.back-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.back-top:hover { background: var(--panel); }

/* ---------- 联系方式弹窗 ---------- */
.contact-modal {
  position: fixed; inset: 0; z-index: 400;
  display: grid; place-items: center;
  padding: 24px;
  opacity: 0; visibility: hidden;
  transition: opacity .35s ease, visibility .35s ease;
}
.contact-modal.show { opacity: 1; visibility: visible; }
.contact-modal-overlay {
  position: absolute; inset: 0;
  background: var(--modal-overlay);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
}
.contact-modal-dialog {
  position: relative;
  width: min(440px, 100%);
  border-radius: 24px;
  padding: 40px 32px 34px;
  background: var(--modal-bg);
  border: 1px solid var(--line-strong);
  box-shadow: 0 30px 80px rgba(0, 0, 0, .6);
  transform: translateY(24px) scale(.96);
  transition: transform .4s var(--ease);
}
.contact-modal.show .contact-modal-dialog { transform: translateY(0) scale(1); }
.contact-modal-close {
  position: absolute; top: 18px; right: 18px;
  width: 34px; height: 34px;
  display: grid; place-items: center;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--modal-close-bg);
  color: var(--muted);
  font-size: 20px; line-height: 1;
  cursor: pointer;
  transition: color .25s, border-color .25s, box-shadow .25s, transform .25s;
}
.contact-modal-close:hover { color: var(--cyan-soft); border-color: var(--line-strong); transform: rotate(90deg); }
.contact-modal-brand { text-align: center; margin-bottom: 30px; }
.contact-modal-brand img {
  width: 74px; height: 74px; margin: 0 auto 14px;
}
.contact-modal-brand p { font-weight: 800; font-size: 17px; letter-spacing: .02em; }
.contact-modal-info { display: grid; gap: 18px; }
.cm-row {
  display: flex; gap: 14px; align-items: flex-start;
  padding: 16px 18px;
  background: var(--chip-bg);
  border: 1px solid var(--line);
  border-radius: 16px;
  transition: border-color .3s, box-shadow .3s;
}
.cm-row:hover { border-color: var(--line-strong); }
.cm-ico {
  flex: none;
  width: 38px; height: 38px;
  display: grid; place-items: center;
  font-size: 17px;
  color: var(--cyan-soft);
  background: var(--surface-soft);
  border: 1px solid var(--line-strong);
  border-radius: 12px;
}
.cm-row b { display: block; font-size: 14px; color: var(--cyan-soft); margin-bottom: 4px; }
.cm-row p { color: var(--muted); font-size: 14px; line-height: 1.6; }
.cm-phones { display: flex; flex-direction: column; gap: 8px; }
.cm-phones a {
  display: inline-flex; align-items: center; gap: 10px;
  color: var(--ink); font-size: 15px; font-weight: 700;
  font-family: var(--mono); letter-spacing: .02em;
}
.cm-phones a::before {
  content: "";
  flex: none;
  width: 14px; height: 14px;
  background: currentColor;
  -webkit-mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M22 16.92v3a2 2 0 0 1-2.18 2 19.79 19.79 0 0 1-8.63-3.07 19.5 19.5 0 0 1-6-6 19.79 19.79 0 0 1-3.07-8.67A2 2 0 0 1 4.11 2h3a2 2 0 0 1 2 1.72 12.84 12.84 0 0 0 .7 2.81 2 2 0 0 1-.45 2.11L8.09 9.91a16 16 0 0 0 6 6l1.27-1.27a2 2 0 0 1 2.11-.45 12.84 12.84 0 0 0 2.81.7A2 2 0 0 1 22 16.92z'/%3E%3C/svg%3E") center / contain no-repeat;
          mask: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='black' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M22 16.92v3a2 2 0 0 1-2.18 2 19.79 19.79 0 0 1-8.63-3.07 19.5 19.5 0 0 1-6-6 19.79 19.79 0 0 1-3.07-8.67A2 2 0 0 1 4.11 2h3a2 2 0 0 1 2 1.72 12.84 12.84 0 0 0 .7 2.81 2 2 0 0 1-.45 2.11L8.09 9.91a16 16 0 0 0 6 6l1.27-1.27a2 2 0 0 1 2.11-.45 12.84 12.84 0 0 0 2.81.7A2 2 0 0 1 22 16.92z'/%3E%3C/svg%3E") center / contain no-repeat;
}
.cm-phones a:hover { color: var(--cyan-soft); }

/* ---------- 滚动入场动画 ---------- */
.reveal {
  opacity: 0;
  transform: translateY(34px);
  transition: opacity .8s var(--ease), transform .8s var(--ease);
  will-change: opacity, transform;
}
.reveal.in { opacity: 1; transform: translateY(0); }
.reveal[data-d="1"] { transition-delay: .08s; }
.reveal[data-d="2"] { transition-delay: .16s; }
.reveal[data-d="3"] { transition-delay: .24s; }
.reveal[data-d="4"] { transition-delay: .32s; }
.reveal[data-d="5"] { transition-delay: .4s; }

/* 点击粒子爆破 */
.burst-dot {
  --bx: 0px;
  --by: 0px;
}
@keyframes burst {
  0% { transform: translate(0, 0) scale(1); opacity: 1; }
  100% { transform: translate(var(--bx), var(--by)) scale(0); opacity: 0; }
}

/* 尊重减弱动效偏好 */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
  html { scroll-behavior: auto; }
}

/* ---------- 响应式 ---------- */
@media (max-width: 1080px) {
  .role-grid, .gate-list, .product-list { grid-template-columns: repeat(2, 1fr); }
  .gap-grid { grid-template-columns: repeat(2, 1fr); }
  .fde-cycle { grid-template-columns: 1fr 1fr; }
  .fde-arrow { display: none; }
  .diagnose-grid, .security-grid, .faq-grid { grid-template-columns: 1fr; gap: 44px; }
  .standard-grid { grid-template-columns: repeat(3, 1fr); }
  .hero-star-badge { display: none; }
  .contact-card { grid-template-columns: 1fr; gap: 40px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

/* 平板竖屏：三列太挤，改两列 */
@media (max-width: 920px) {
  .standard-grid { grid-template-columns: repeat(2, 1fr); }
  .fde-cycle { grid-template-columns: 1fr; }
  .fde-arrow { display: none; }
}

@media (max-width: 760px) {
  .section { padding: 64px 0; }
  .nav-wrap { gap: 10px; }
  .theme-toggle { margin-left: auto; }
  .nav-toggle { display: flex; margin-left: 0; }
  /* 抽屉菜单：全屏滑入 */
  .nav-backdrop {
    display: block;
    position: fixed; inset: 0; z-index: 200;
    background: rgba(3, 5, 12, .5);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    opacity: 0; visibility: hidden;
    transition: opacity .4s var(--ease), visibility .4s;
  }
  .nav-backdrop.on { opacity: 1; visibility: visible; }
  .nav-links {
    position: fixed; top: 0; right: 0; bottom: 0; z-index: 210;
    width: min(86vw, 340px);
    flex-direction: column;
    gap: 2px;
    margin-left: 0;
    padding: 20px 24px 32px;
    background: var(--nav-mobile-bg);
    backdrop-filter: blur(24px) saturate(160%);
    -webkit-backdrop-filter: blur(24px) saturate(160%);
    border-left: 1px solid var(--line);
    transform: translateX(calc(100% + 40px));
    transition: transform .45s var(--ease), box-shadow .45s var(--ease);
    overflow-y: auto;
  }
  .nav-links.open { transform: translateX(0); }
  .nav-close-row { display: flex; justify-content: flex-end; }
  .nav-close {
    width: 38px; height: 38px;
    display: grid; place-items: center;
    border: 1px solid var(--line);
    border-radius: 12px;
    background: var(--surface-soft);
    color: var(--cyan-soft);
    cursor: pointer;
    transition: background .25s, border-color .25s;
  }
  .nav-close:hover { border-color: var(--line-strong); }
  .nav-link {
    position: relative;
    display: block; text-align: left;
    padding: 16px 14px; font-size: 17px; font-weight: 700;
    color: var(--ink);
    border-bottom: 1px solid var(--line);
    border-radius: 12px;
    margin: 2px 0;
    transition: background .25s, color .25s;
  }
  .nav-link:hover, .nav-link.active { color: var(--cyan-soft); background: var(--surface-soft); }
  .nav-link::after { display: none; }
  .nav-link::before { display: none; }
  .nav-cta-row { display: block; margin-top: auto; padding-top: 22px; }
  .btn-block { width: 100%; }
  .nav-contact-row {
    display: flex; flex-direction: column; gap: 6px;
    padding-top: 24px;
    color: var(--muted-2); font-size: 13px; line-height: 1.5;
  }
  .nav-motto { color: var(--cyan-soft); letter-spacing: .04em; }
  .btn-nav-cta { display: none; }
  .hero { padding: 96px 0 64px; min-height: auto; }
  .hero-eyebrow { margin-bottom: 16px; }
  .hero-title { font-size: clamp(28px, 8.4vw, 40px); margin-top: 28px; }
  .typing-wrap { margin-top: 24px; line-height: 1.3; }
  .hero-sub { margin-top: 22px; font-size: 16.5px; }
  .hero-actions { flex-direction: column; align-items: stretch; gap: 12px; margin-top: 30px; }
  .hero-actions .btn { width: 100%; }
  .hero-tags { gap: 8px; margin-top: 30px; }
  .hero-tags li { font-size: 12px; padding: 6px 12px; }
  .hero-scroll { display: none; }
  /* 问题断层卡片：一行一个 */
  .gap-grid { grid-template-columns: 1fr; gap: 14px; }
  /* 岗位场景卡片：icon 左、标题文右、标签左对齐 */
  .role-grid { grid-template-columns: 1fr; gap: 14px; }
  .role-card {
    display: grid; grid-template-columns: auto 1fr; gap: 16px;
    text-align: left; align-items: start;
  }
  .role-card .role-char { margin: 0; align-self: flex-start; }
  .role-card .role-head {
    display: flex; flex-direction: column; justify-content: center;
    gap: 4px; height: 54px;
  }
  .role-card .role-head h3 { margin: 0; }
  .role-card .role-head p { margin: 0; }
  .role-card ul {
    grid-column: 1 / -1;
    display: flex; flex-wrap: wrap; gap: 8px;
    justify-content: flex-start;
    margin-top: 4px; margin-bottom: 0;
  }
  .role-card li {
    padding: 7px 14px;
    background: var(--surface-soft);
    border: 1px solid var(--line);
    border-radius: 999px;
    font-size: 13px;
    color: var(--muted);
  }
  .role-card li::before { display: none; }
  /* FDE 四步：两列一行，正方形卡片，内容垂直居中 */
  .fde-cycle { grid-template-columns: 1fr 1fr; gap: 12px; }
  .fde-step {
    aspect-ratio: 1 / 1; padding: 16px 14px; text-align: center;
    display: flex; flex-direction: column; align-items: center; justify-content: center;
  }
  .fde-ico {
    flex: none; width: 52px; height: 52px; margin: 0 auto 12px;
  }
  .fde-ico svg { width: 22px; height: 22px; }
  .fde-step b { margin-top: 0; line-height: 1.3; }
  .fde-step p { margin-top: 8px; font-size: 13.5px; line-height: 1.4; }
  .fde-track { display: none; }
  .fde-notes { margin-top: 26px; }
  /* 产品卡：保持左对齐，1-2周(左)+成果(左，带间距) */
  .product-list { grid-template-columns: 1fr; gap: 14px; }
  .product-card { text-align: left; }
  .product-top { justify-content: flex-start; }
  .product-meta { flex-direction: row; justify-content: flex-start; gap: 14px; align-items: baseline; }
  .product-meta span:first-child { flex: none; }
  .product-meta span:last-child { text-align: left; }
  /* 交付标准：左右布局，icon 在圆环内居中，右侧标题/内容上下两行 */
  .standard-grid { grid-template-columns: 1fr; gap: 14px; }
  .std-card {
    display: flex; gap: 22px; align-items: center;
    text-align: left; padding: 20px 22px;
    background: var(--panel);
  }
  .std-orb {
    flex: none; width: 60px; height: 60px; margin: 0;
    display: grid; place-items: center;
  }
  .std-orb span { display: grid; place-items: center; width: 100%; height: 100%; }
  .std-orb svg { width: 24px; height: 24px; }
  .std-body { display: flex; flex-direction: column; gap: 6px; }
  .std-card h3 { font-size: 18px; margin: 0; }
  .std-card p { font-size: 14px; margin: 0; line-height: 1.5; }
  .std-card h3, .std-card p { text-align: left; }
  /* 数据安全：一行一个 */
  .security-points { grid-template-columns: 1fr; gap: 12px; }
  /* G0-G7：统一放到一个大容器内（圆角+内边距），内部为步骤 */
  .gate-list {
    grid-template-columns: 1fr; gap: 0; position: relative;
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    padding: 6px 20px;
    backdrop-filter: blur(10px);
  }
  .gate-list::before { content: none; }
  .gate {
    position: relative;
    display: flex; gap: 18px; align-items: center;
    padding: 16px 0; border-radius: 0;
    background: none; border: none; backdrop-filter: none;
  }
  .gate::after { content: none; }
  .gate .gate-idx {
    flex: none; z-index: 1;
    width: 40px; height: 40px;
    display: grid; place-items: center;
    border: 1px solid var(--line-strong);
    border-radius: 50%;
    background: var(--panel-solid);
  }
  .gate h3 { margin: 0 0 4px; }
  /* 能回答≠能工作：一行 */
  .neq-display { flex-direction: row; gap: 14px; margin: 44px 0; }
  .neq-symbol { transform: none; font-size: 40px; }
  .neq-card { width: auto; flex: 1; padding: 24px 12px; font-size: clamp(26px, 7vw, 34px); box-shadow: none; }
  .neq-card span { font-size: 13px; }
  .diagnose-grid, .security-grid, .faq-grid { gap: 40px; }
  .diagnose-grid .btn { margin-top: 12px; }
  .faq-item summary { font-size: 15.5px; padding: 20px 20px; }
  .faq-item p { padding: 0 20px 22px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 28px; padding-bottom: 32px; }
  .footer-brand { grid-column: 1 / -1; text-align: center; }
  .footer-brand img { margin: 0 auto 10px; }
  .footer-col h4 { margin-bottom: 12px; }
  .footer-col:last-child { grid-column: 1 / -1; }
  .footer-bottom { flex-direction: column; text-align: center; gap: 8px; }
  .footer-phone { flex-direction: row; flex-wrap: wrap; gap: 8px 16px; }
  .contact-card { padding: 34px 22px; border-radius: 22px; gap: 36px; }
  .fit-questions li { font-size: 13.5px; }
  .back-top { right: 16px; bottom: 16px; }
  .ticker-track span { font-size: 13px; }
  .contact-modal-dialog { padding: 34px 22px 30px; }
}

/* 更窄手机 / 大屏手机竖屏细化 */
@media (max-width: 480px) {
  .shell { width: calc(100% - 36px); }
  .section { padding: 56px 0; }
  .hero { padding: 88px 0 80px; }
  .hero-title { font-size: clamp(25px, 7.8vw, 33px); }
  .hero-eyebrow { font-size: 11px; letter-spacing: .2em; }
  .hero-sub { font-size: 16px; }
  .brand-text { font-size: 17px; }
  .sec-head h2 { font-size: clamp(26px, 7vw, 32px); }
  .sec-lead { font-size: 15.5px; }
  .eyebrow { font-size: 11px; }
  .gate-idx { font-size: 14px; }
  .std-card { padding: 18px 18px; }
  .std-orb { width: 54px; height: 54px; }
  .std-orb svg { width: 22px; height: 22px; }
  .diagnose-steps li { padding: 20px 18px; }
  .d-num { width: 44px; height: 44px; }
  .footer-grid { gap: 24px; }
  .contact-card { padding: 28px 18px; }
  .company-chip { padding: 16px 14px; }
}

/* ---------- PC / 桌面端微调（不影响手机端） ---------- */
@media (min-width: 761px) {
  /* 「缺的是把能力变成岗位工具的完整过程」不换行，并加宽容器容纳 */
  .sec-head { max-width: 920px; }
  .sec-head h2 .grad-text { white-space: nowrap; }
  /* 预约现场诊断按钮：上方加边距 */
  .diagnose-grid .sec-head .btn { margin-top: 16px; }
}

/* 带鼠标的设备：隐藏手型/默认光标，统一用自定义光标 */
@media (pointer: fine) {
  a, button, summary, .btn, label, input, textarea, select {
    cursor: none !important;
  }
}