/* 小韦 · 企业 AI 落地顾问 —— 深空演播室（Dark Slate Studio） */

@font-face {
  font-family: "XW Sans";
  src: url("/fonts/xw-sans-bold.woff2") format("woff2");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "Outfit";
  src: url("/fonts/outfit.woff2") format("woff2");
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-2013, U+2015-2025, U+2027-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: "Manrope";
  src: url("/fonts/manrope.woff2") format("woff2");
  font-weight: 200 800;
  font-style: normal;
  font-display: swap;
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-2013, U+2015-2025, U+2027-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

:root {
  --bg: #13161b;
  --bg-2: #1a1d24;
  --surface: rgba(30, 33, 41, 0.72);
  --surface-strong: rgba(30, 33, 41, 0.9);
  --line: rgba(255, 255, 255, 0.08);
  --line-2: rgba(255, 255, 255, 0.14);
  --text: #f2f4f6;
  --text-2: #a4adba;
  --text-3: #737d8b;
  --accent: #10b981;
  --accent-hi: #34d399;
  --accent-ink: #04120d;
  --accent-glow: rgba(16, 185, 129, 0.38);

  --display: "Outfit", "XW Sans", "PingFang SC", "HarmonyOS Sans SC", "Microsoft YaHei", sans-serif;
  --body: "Manrope", -apple-system, BlinkMacSystemFont, "PingFang SC", "HarmonyOS Sans SC", "MiSans",
    "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;

  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-quart: cubic-bezier(0.25, 1, 0.5, 1);
  --gutter: clamp(16px, 4.5vw, 48px);
  --max: 1200px;
  --nav-h: 72px;
  --r: 16px;
  --r-lg: 24px;
  color-scheme: dark;
}

/* ---------- 基础 ---------- */

*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: calc(var(--nav-h) + 12px);
  background: var(--bg);
}
html.lenis, html.lenis body { height: auto; }
.lenis.lenis-smooth { scroll-behavior: auto !important; }
.lenis.lenis-stopped { overflow: hidden; }

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: var(--body);
  font-size: clamp(0.975rem, 0.94rem + 0.18vw, 1.0625rem);
  line-height: 1.75;
  font-synthesis: none;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
}

/* 胶片颗粒：给大面积深色一点物质感 */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 100;
  pointer-events: none;
  opacity: 0.05;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

::selection { background: rgba(16, 185, 129, 0.32); color: #fff; }

:focus-visible {
  outline: 2px solid var(--accent-hi);
  outline-offset: 3px;
  border-radius: 6px;
}

a { color: inherit; }
img { display: block; max-width: 100%; }

.wrap {
  width: 100%;
  max-width: var(--max);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.skip {
  position: fixed;
  top: 12px;
  left: 12px;
  z-index: 200;
  padding: 10px 18px;
  border-radius: 999px;
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 700;
  text-decoration: none;
  transform: translateY(-180%);
  transition: transform 0.3s var(--ease);
}
.skip:focus { transform: none; }

.sr {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  overflow: hidden;
  clip-path: inset(50%);
  white-space: nowrap;
}

/* ---------- 通用：磨砂亚克力 ---------- */

.glass {
  position: relative;
  isolation: isolate;
  border-radius: var(--r);
  background: var(--surface);
  -webkit-backdrop-filter: blur(22px) saturate(1.25);
  backdrop-filter: blur(22px) saturate(1.25);
  box-shadow:
    inset 0 1px 0.5px rgba(255, 255, 255, 0.14),
    inset 0 0 0 1px rgba(255, 255, 255, 0.05),
    0 24px 48px -24px rgba(0, 0, 0, 0.7);
}
/* 边缘光：跟随鼠标流动的祖母绿发丝高光 */
.glass::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  padding: 1px;
  border-radius: inherit;
  background:
    radial-gradient(380px circle at var(--mx, -999px) var(--my, -999px), rgba(52, 211, 153, 0.75), transparent 42%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0.03) 60%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}
/* 表面光泽：悬停时跟着鼠标走 */
.glass::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  border-radius: inherit;
  background: radial-gradient(520px circle at var(--mx, 50%) var(--my, 50%), rgba(255, 255, 255, 0.055), transparent 45%);
  opacity: 0;
  transition: opacity 0.5s var(--ease);
  pointer-events: none;
}
.glass:hover::after { opacity: 1; }

.lift {
  transition: transform 0.6s var(--ease), background-color 0.5s var(--ease), box-shadow 0.6s var(--ease);
}
@media (hover: hover) {
  .lift:hover {
    transform: translateY(-4px);
    background: var(--surface-strong);
    box-shadow:
      inset 0 1px 0.5px rgba(255, 255, 255, 0.18),
      inset 0 0 0 1px rgba(255, 255, 255, 0.07),
      0 32px 64px -28px rgba(0, 0, 0, 0.85);
  }
}

/* 环境光：让磨砂玻璃背后有东西可「磨」 */
.ambient {
  position: absolute;
  z-index: -1;
  border-radius: 50%;
  pointer-events: none;
  filter: blur(80px);
  opacity: 0.55;
  background: radial-gradient(circle, rgba(16, 185, 129, 0.35), rgba(16, 185, 129, 0) 70%);
  animation: drift 18s var(--ease-quart) infinite alternate;
}
.ambient--cool { background: radial-gradient(circle, rgba(56, 132, 180, 0.28), rgba(56, 132, 180, 0) 70%); animation-duration: 24s; }
@keyframes drift {
  from { transform: translate3d(-4%, -3%, 0) scale(1); }
  to { transform: translate3d(5%, 4%, 0) scale(1.12); }
}

/* ---------- 按钮 ---------- */

.btn {
  --pad: 26px;
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  height: 52px;
  padding-inline: var(--pad);
  border: 0;
  border-radius: 999px;
  background: var(--accent);
  color: var(--accent-ink);
  font: 700 0.95rem/1 var(--body);
  letter-spacing: 0.04em;
  text-decoration: none;
  cursor: pointer;
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.12) inset, 0 10px 30px -10px var(--accent-glow);
  transition: box-shadow 0.4s var(--ease), background-color 0.3s var(--ease);
  will-change: transform;
}
.btn:hover {
  background: var(--accent-hi);
  box-shadow: 0 0 0 1px rgba(255, 255, 255, 0.2) inset, 0 14px 40px -8px rgba(16, 185, 129, 0.6);
}
.btn:active { filter: brightness(0.92); }
.btn svg { width: 16px; height: 16px; transition: transform 0.45s var(--ease); }
.btn:hover svg { transform: translateX(3px); }
.btn--sm { height: 40px; --pad: 18px; font-size: 0.875rem; }

.link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding-block: 6px;
  color: var(--text-2);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  background: linear-gradient(currentColor, currentColor) 0 100% / 0 1px no-repeat;
  transition: color 0.3s var(--ease), background-size 0.5s var(--ease);
}
.link:hover { color: var(--text); background-size: 100% 1px; }
.link svg { width: 15px; height: 15px; transition: transform 0.45s var(--ease); }
.link:hover svg { transform: translate(2px, -2px); }

/* ---------- 导航 ---------- */

.progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 60;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent-hi));
  transform: scaleX(0);
  transform-origin: 0 50%;
  box-shadow: 0 0 12px var(--accent-glow);
}

.nav {
  position: fixed;
  inset: 0 0 auto;
  z-index: 50;
  height: var(--nav-h);
  transition: background-color 0.5s var(--ease), border-color 0.5s var(--ease);
  border-bottom: 1px solid transparent;
}
.nav.is-solid {
  background: rgba(19, 22, 27, 0.62);
  -webkit-backdrop-filter: blur(20px) saturate(1.3);
  backdrop-filter: blur(20px) saturate(1.3);
  border-bottom-color: var(--line);
}
.nav__in {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  height: 100%;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  justify-self: start;
  text-decoration: none;
}
/* 标志：几何「韦」——白三横是生意，贯穿的祖母绿一竖是 AI，落到砖底亮起落点光 */
.seal {
  display: block;
  width: 34px;
  height: 34px;
  filter: drop-shadow(0 6px 12px rgba(16, 185, 129, 0.22));
  transition: filter 0.6s var(--ease);
}
.seal svg { display: block; width: 100%; height: 100%; }
.seal .mk-land { transform-box: fill-box; transform-origin: center; transition: opacity 0.6s var(--ease); }
.brand:hover .seal { filter: drop-shadow(0 6px 16px rgba(16, 185, 129, 0.4)); }
@media (prefers-reduced-motion: no-preference) {
  .brand:hover .seal .mk-v { animation: mk-drop 0.9s var(--ease); }
  .brand:hover .seal .mk-land { animation: mk-land 0.9s var(--ease); }
}
@keyframes mk-drop { from { stroke-dasharray: 1; stroke-dashoffset: 1; } to { stroke-dasharray: 1; stroke-dashoffset: 0; } }
@keyframes mk-land { 0%, 55% { opacity: 0; transform: scale(0.4); } 100% { opacity: 1; transform: scale(1); } }
.brand__txt { display: grid; line-height: 1.15; }
.brand__name { font: 700 1.05rem/1.2 var(--display); letter-spacing: 0.06em; }
.brand__sub { color: var(--text-3); font: 500 0.6875rem/1.3 var(--display); letter-spacing: 0.18em; text-transform: uppercase; }

.menu {
  position: relative;
  display: flex;
  gap: 4px;
  padding: 5px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.035);
  box-shadow: inset 0 0 0 1px var(--line);
}
.menu a {
  position: relative;
  z-index: 1;
  padding: 8px 16px;
  border-radius: 999px;
  color: var(--text-2);
  font-size: 0.875rem;
  font-weight: 600;
  text-decoration: none;
  transition: color 0.35s var(--ease);
}
.menu a:hover, .menu a.is-active { color: var(--text); }
.menu__pill {
  position: absolute;
  top: 5px;
  left: 0;
  height: calc(100% - 10px);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  box-shadow: inset 0 1px 0.5px rgba(255, 255, 255, 0.14);
  opacity: 0;
  transition: transform 0.55s var(--ease), width 0.55s var(--ease), opacity 0.4s var(--ease);
}

.nav__cta { justify-self: end; display: flex; align-items: center; gap: 10px; }

.burger {
  display: none;
  place-items: center;
  width: 44px;
  height: 44px;
  border: 0;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.05);
  box-shadow: inset 0 0 0 1px var(--line);
  color: var(--text);
  cursor: pointer;
}
.burger span, .burger span::before {
  content: "";
  display: block;
  width: 18px;
  height: 1.5px;
  background: currentColor;
  transition: transform 0.5s var(--ease);
}
.burger span { transform: translateY(-3px); }
.burger span::before { transform: translateY(6px); }
.is-menu-open .burger span { transform: rotate(45deg); }
.is-menu-open .burger span::before { transform: rotate(-90deg); }

.sheet {
  position: fixed;
  inset: 0;
  z-index: 45;
  display: grid;
  align-content: center;
  gap: 8px;
  padding: calc(var(--nav-h) + 24px) var(--gutter) 48px;
  background: rgba(15, 17, 21, 0.9);
  -webkit-backdrop-filter: blur(24px);
  backdrop-filter: blur(24px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.5s var(--ease), visibility 0.5s;
}
.sheet a {
  display: flex;
  align-items: baseline;
  gap: 16px;
  padding-block: 12px;
  border-bottom: 1px solid var(--line);
  color: var(--text);
  font: 700 clamp(1.75rem, 8vw, 2.5rem)/1.2 var(--display);
  text-decoration: none;
  transform: translateY(16px);
  opacity: 0;
  transition: transform 0.6s var(--ease), opacity 0.6s var(--ease);
}
.sheet a small { color: var(--accent-hi); font: 600 0.8125rem/1 var(--display); letter-spacing: 0.1em; }
.is-menu-open .sheet { opacity: 1; visibility: visible; }
.is-menu-open .sheet a { transform: none; opacity: 1; }
.is-menu-open .sheet a:nth-child(2) { transition-delay: 0.05s; }
.is-menu-open .sheet a:nth-child(3) { transition-delay: 0.1s; }
.is-menu-open .sheet a:nth-child(4) { transition-delay: 0.15s; }
.is-menu-open .sheet a:nth-child(5) { transition-delay: 0.2s; }
.is-menu-open .sheet a:nth-child(6) { transition-delay: 0.25s; }

@media (max-width: 960px) {
  .menu { display: none; }
  .burger { display: grid; }
  .nav__in { grid-template-columns: 1fr auto; }
  .nav__cta .btn { display: none; }
}

/* ---------- 首屏 ---------- */

.hero {
  position: relative;
  isolation: isolate;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  padding-top: var(--nav-h);
  overflow: hidden;
}
.hero__bg {
  position: absolute;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(60% 55% at 64% 0%, rgba(120, 220, 190, 0.1), transparent 70%),
    linear-gradient(180deg, #151920 0%, var(--bg) 100%);
}
.hero__bg canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}
.hero__bg::after {
  content: "";
  position: absolute;
  inset: auto 0 0;
  height: 30%;
  background: linear-gradient(180deg, transparent, var(--bg));
}
/* 地面网格：演播室的地板，淡出到远处 */
.hero__floor {
  position: absolute;
  inset: auto -20% -10% -20%;
  z-index: -1;
  height: 46%;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
  background-size: 64px 64px;
  transform: perspective(700px) rotateX(62deg);
  transform-origin: 50% 0;
  -webkit-mask: linear-gradient(180deg, transparent, #000 30%, #000 60%, transparent);
  mask: linear-gradient(180deg, transparent, #000 30%, #000 60%, transparent);
  pointer-events: none;
}

.hero__in {
  flex: 1;
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 0.7fr);
  align-items: center;
  gap: clamp(40px, 6vw, 88px);
  padding-block: clamp(24px, 5vh, 64px) clamp(20px, 3.5vh, 40px);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin: 0 0 28px;
  padding: 7px 14px 7px 10px;
  border-radius: 999px;
  background: rgba(16, 185, 129, 0.08);
  box-shadow: inset 0 0 0 1px rgba(16, 185, 129, 0.22);
  color: var(--accent-hi);
  font: 600 0.8125rem/1.2 var(--body);
  letter-spacing: 0.08em;
}
.pulse {
  position: relative;
  flex: none;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent-hi);
}
.pulse::after {
  content: "";
  position: absolute;
  inset: -4px;
  border-radius: 50%;
  border: 1px solid var(--accent-hi);
  animation: ping 2.4s var(--ease) infinite;
}
@keyframes ping {
  from { transform: scale(0.6); opacity: 0.9; }
  to { transform: scale(2.2); opacity: 0; }
}

.hero__title {
  margin: 0;
  font: 700 clamp(2.5rem, 0.9rem + 5.4vw, 5.5rem)/1.06 var(--display);
  letter-spacing: -0.02em;
}
.hero__title .ln { display: block; overflow: hidden; padding-bottom: 0.08em; margin-bottom: -0.08em; }
.hero__title .ln > span { display: block; white-space: nowrap; }
.hero__title em {
  font-style: normal;
  background: linear-gradient(100deg, #e6fdf2 0%, #a7f3d0 45%, var(--accent-hi) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.dot { color: var(--accent-hi); }

.hero__lead {
  max-width: 31em;
  margin: clamp(24px, 3vw, 36px) 0 0;
  color: var(--text-2);
  font-size: clamp(1.0625rem, 1rem + 0.3vw, 1.1875rem);
  line-height: 1.8;
  text-wrap: pretty;
}
.hero__lead b { color: var(--text); font-weight: 600; }

.hero__cta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px 28px;
  margin-top: clamp(32px, 4vw, 44px);
}

/* 个人卡片 */
.card3d { perspective: 1200px; justify-self: end; width: 100%; max-width: 360px; }
.profile {
  padding: 12px;
  border-radius: var(--r-lg);
  transform-style: preserve-3d;
  will-change: transform;
}
.profile__media {
  position: relative;
  overflow: hidden;
  aspect-ratio: 1 / 1;
  border-radius: 16px;
  background:
    radial-gradient(55% 50% at 50% 40%, rgba(52, 211, 153, 0.34), transparent 72%),
    radial-gradient(90% 60% at 50% 100%, rgba(56, 132, 180, 0.18), transparent 70%),
    linear-gradient(160deg, #222833, #161a20);
}
.profile__media img { position: relative; width: 100%; height: 100%; object-fit: cover; object-position: 50% 0%; filter: drop-shadow(0 24px 32px rgba(0, 0, 0, 0.45)); }
.profile__media::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: radial-gradient(70% 60% at 88% 0%, rgba(52, 211, 153, 0.35), transparent 62%);
  mix-blend-mode: soft-light;
  pointer-events: none;
}
.profile__media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 55%, rgba(19, 22, 27, 0.75));
}
.glare {
  position: absolute;
  inset: 0;
  z-index: 3;
  border-radius: inherit;
  background: linear-gradient(115deg, transparent 30%, rgba(255, 255, 255, 0.16) 48%, transparent 62%);
  background-size: 250% 250%;
  background-position: var(--gx, 100%) var(--gy, 0%);
  mix-blend-mode: soft-light;
  pointer-events: none;
}
.profile__body { padding: 18px 10px 8px; transform: translateZ(30px); }
.profile__row { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; }
.profile__name { margin: 0; font: 700 1.625rem/1.2 var(--display); letter-spacing: 0.04em; }
.profile__status { display: inline-flex; align-items: center; gap: 8px; color: var(--text-2); font-size: 0.8125rem; white-space: nowrap; }
.profile__role { margin: 4px 0 0; color: var(--text-2); font-size: 0.9375rem; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; margin: 16px 0 0; padding: 0; list-style: none; }
.chips li {
  padding: 5px 12px;
  border-radius: 999px;
  background: rgba(16, 185, 129, 0.1);
  box-shadow: inset 0 0 0 1px rgba(16, 185, 129, 0.24);
  color: var(--accent-hi);
  font-size: 0.8125rem;
  font-weight: 600;
}

/* 背书数字条 */
.stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-bottom: clamp(20px, 4vh, 40px);
  padding: 6px;
}
.stat { padding: 18px 22px; }
.stat + .stat { box-shadow: -1px 0 0 var(--line); }
.stat__num {
  display: flex;
  align-items: baseline;
  gap: 4px;
  font: 600 clamp(1.875rem, 1.3rem + 1.8vw, 2.75rem)/1 var(--display);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
}
.stat__num small { color: var(--accent-hi); font-size: 0.5em; font-weight: 600; letter-spacing: 0; }
.stat__label { margin-top: 10px; color: var(--text-2); font-size: 0.875rem; line-height: 1.5; }


@media (max-width: 960px) {
  .hero__in { grid-template-columns: 1fr; }
  .hero__title { font-size: clamp(2.5rem, 12.5vw, 4.5rem); }
  .card3d { justify-self: start; max-width: 460px; }
  .profile__media { aspect-ratio: 16 / 11; }
  .stats { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stat:nth-child(3) { box-shadow: 0 -1px 0 var(--line); }
  .stat:nth-child(4) { box-shadow: -1px 0 0 var(--line), 0 -1px 0 var(--line); }
}

/* ---------- 跑马灯 ---------- */

.marquee {
  position: relative;
  overflow: hidden;
  padding-block: 26px;
  border-block: 1px solid var(--line);
  -webkit-mask: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
  mask: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
}
.marquee__track {
  display: flex;
  width: max-content;
  animation: marquee 42s linear infinite;
}
.marquee:hover .marquee__track { animation-play-state: paused; }
.marquee__group { display: flex; align-items: center; }
.marquee__item {
  display: inline-flex;
  align-items: center;
  gap: 28px;
  padding-right: 28px;
  color: var(--text-3);
  font: 700 clamp(1.25rem, 1rem + 1vw, 1.75rem)/1 var(--display);
  white-space: nowrap;
  transition: color 0.4s var(--ease);
}
.marquee__item:hover { color: var(--text); }
.marquee__item::after {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 10px var(--accent-glow);
}
@keyframes marquee { to { transform: translateX(-50%); } }

/* ---------- 分区 ---------- */

.section {
  position: relative;
  isolation: isolate;
  padding-block: clamp(72px, 9vw, 128px);
}
.kicker {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: 0 0 20px;
  color: var(--accent-hi);
  font: 600 0.8125rem/1 var(--display);
  letter-spacing: 0.22em;
  text-transform: uppercase;
}
.kicker::before { content: ""; width: 32px; height: 1px; background: currentColor; opacity: 0.6; }
.h2 {
  margin: 0;
  font: 700 clamp(2.125rem, 1.3rem + 3.2vw, 3.75rem)/1.12 var(--display);
  letter-spacing: -0.015em;
  text-wrap: balance;
}
.h2 .muted { color: var(--text-3); }
.intro {
  max-width: 36em;
  margin: 22px 0 0;
  color: var(--text-2);
  font-size: clamp(1rem, 0.96rem + 0.2vw, 1.0625rem);
  text-wrap: pretty;
}
.head { display: grid; margin-bottom: clamp(44px, 6vw, 72px); }
.head--split {
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  align-items: end;
  column-gap: 48px;
}
.head--split .intro { margin: 0; justify-self: end; }
@media (max-width: 860px) {
  .head--split { grid-template-columns: 1fr; }
  .head--split .intro { justify-self: start; margin-top: 22px; }
}

/* 简介 */
.about {
  display: grid;
  grid-template-columns: minmax(0, 0.95fr) minmax(0, 1.05fr);
  gap: clamp(40px, 7vw, 104px);
  align-items: start;
}
.about__sticky { position: sticky; top: calc(var(--nav-h) + 48px); }
.statement {
  margin: 0;
  font: 700 clamp(1.75rem, 1.15rem + 2.2vw, 2.75rem)/1.3 var(--display);
  letter-spacing: -0.01em;
}
.statement .w { color: var(--text-3); transition: color 0.4s linear; }
.statement .w.is-lit { color: var(--text); }
.about__lead { margin: 28px 0 0; color: var(--text-2); max-width: 30em; text-wrap: pretty; }

.timeline { position: relative; padding-left: 36px; }
.timeline ol { margin: 0; padding: 0; list-style: none; }
.timeline::before, .timeline__fill {
  content: "";
  position: absolute;
  top: 10px;
  bottom: 10px;
  left: 7px;
  width: 1px;
  background: var(--line-2);
}
.timeline__fill {
  background: linear-gradient(180deg, var(--accent-hi), var(--accent));
  box-shadow: 0 0 12px var(--accent-glow);
  transform: scaleY(0);
  transform-origin: 50% 0;
}
.tl { position: relative; padding: 0 0 36px; }
.tl:last-child { padding-bottom: 0; }
.tl::before {
  content: "";
  position: absolute;
  top: 9px;
  left: -34px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--bg);
  box-shadow: inset 0 0 0 1.5px var(--line-2);
  transition: box-shadow 0.5s var(--ease), background-color 0.5s var(--ease);
}
.tl.is-on::before { background: var(--accent-hi); box-shadow: 0 0 0 4px rgba(16, 185, 129, 0.18), 0 0 16px var(--accent-glow); }
.tl__year { color: var(--text-3); font: 600 0.875rem/1.4 var(--display); letter-spacing: 0.08em; font-variant-numeric: tabular-nums; transition: color 0.5s var(--ease); }
.tl.is-on .tl__year { color: var(--accent-hi); }
.tl__title { margin: 6px 0 0; font: 700 1.25rem/1.4 var(--display); }
.tl p { margin: 6px 0 0; color: var(--text-2); font-size: 0.9375rem; text-wrap: pretty; }

@media (max-width: 860px) {
  .about { grid-template-columns: 1fr; }
  .about__sticky { position: static; }
}

/* 业务 */
.services {
  position: relative;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}
.svc {
  display: flex;
  flex-direction: column;
  gap: 18px;
  min-height: 100%;
  padding: clamp(24px, 3vw, 36px);
  text-decoration: none;
}
.svc__top { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; }
.icon {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: linear-gradient(160deg, rgba(52, 211, 153, 0.16), rgba(16, 185, 129, 0.04));
  box-shadow: inset 0 0 0 1px rgba(52, 211, 153, 0.25), inset 0 1px 0.5px rgba(255, 255, 255, 0.2);
  color: var(--accent-hi);
}
.icon svg { width: 24px; height: 24px; }
.svc__no { color: var(--text-3); font: 600 0.8125rem/1 var(--display); letter-spacing: 0.1em; }
.svc__title { margin: 0; font: 700 clamp(1.375rem, 1.15rem + 0.8vw, 1.75rem)/1.3 var(--display); }
.svc__for { display: inline-block; margin-top: 8px; color: var(--accent-hi); font-size: 0.8125rem; font-weight: 600; letter-spacing: 0.04em; }
.svc__desc { margin: 0; color: var(--text-2); text-wrap: pretty; }
.ticks { display: grid; gap: 8px; margin: 0; padding: 0; list-style: none; }
.ticks li { position: relative; padding-left: 26px; color: var(--text); font-size: 0.9375rem; }
.ticks li::before {
  content: "";
  position: absolute;
  top: 0.5em;
  left: 2px;
  width: 12px;
  height: 7px;
  border-left: 1.5px solid var(--accent-hi);
  border-bottom: 1.5px solid var(--accent-hi);
  transform: rotate(-45deg);
}
.svc__foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: auto;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  color: var(--text-3);
  font-size: 0.8125rem;
}
.arrow {
  display: grid;
  flex: none;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  box-shadow: inset 0 0 0 1px var(--line-2);
  color: var(--text-2);
  transition: background-color 0.4s var(--ease), color 0.4s var(--ease), transform 0.6s var(--ease), box-shadow 0.4s var(--ease);
}
.arrow svg { width: 15px; height: 15px; }
.svc:hover .arrow { background: var(--accent); color: var(--accent-ink); box-shadow: none; transform: rotate(45deg); }

@media (max-width: 760px) {
  .services { grid-template-columns: 1fr; }
}

/* 流程 */
.steps {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 20px;
  margin-top: clamp(56px, 7vw, 88px);
}
.steps__line {
  position: absolute;
  top: 27px;
  left: 28px;
  right: 28px;
  height: 1px;
  background: var(--line-2);
}
.steps__line i {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, var(--accent), var(--accent-hi));
  box-shadow: 0 0 12px var(--accent-glow);
  transform: scaleX(0);
  transform-origin: 0 50%;
}
.step { position: relative; }
.step__dot {
  position: relative;
  z-index: 1;
  display: grid;
  place-items: center;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--bg-2);
  box-shadow: inset 0 0 0 1px var(--line-2);
  color: var(--text-2);
  font: 700 1rem/1 var(--display);
  transition: background-color 0.5s var(--ease), color 0.5s var(--ease), box-shadow 0.5s var(--ease);
}
.step.is-on .step__dot { background: var(--accent); color: var(--accent-ink); box-shadow: 0 0 0 6px rgba(16, 185, 129, 0.14), 0 10px 30px -8px var(--accent-glow); }
.step h3 { margin: 22px 0 0; font: 700 1.25rem/1.4 var(--display); }
.step p { margin: 8px 0 0; color: var(--text-2); font-size: 0.9375rem; text-wrap: pretty; }
@media (max-width: 860px) {
  .steps { grid-template-columns: 1fr 1fr; row-gap: 40px; }
  .steps__line { display: none; }
}
@media (max-width: 520px) {
  .steps { grid-template-columns: 1fr; }
}

/* 案例 */
.cases {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
}
.case {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: clamp(24px, 2.6vw, 32px);
}
.case__tag {
  align-self: flex-start;
  padding: 5px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
  box-shadow: inset 0 0 0 1px var(--line);
  color: var(--text-2);
  font-size: 0.8125rem;
  font-weight: 600;
}
.case__metric {
  display: flex;
  align-items: baseline;
  gap: 6px;
  margin-top: 6px;
  font: 600 clamp(2.75rem, 2rem + 2.4vw, 3.75rem)/1 var(--display);
  letter-spacing: -0.03em;
  font-variant-numeric: tabular-nums;
  background: linear-gradient(180deg, #fff 30%, #9fe9c9);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.case__metric small { font-size: 0.36em; letter-spacing: 0; }
.case__metric-label { margin-top: -4px; color: var(--accent-hi); font-size: 0.875rem; font-weight: 600; }
.case__title { margin: 8px 0 0; font: 700 1.1875rem/1.45 var(--display); text-wrap: balance; }
.case p { margin: 0; color: var(--text-2); font-size: 0.9375rem; text-wrap: pretty; }
.case__src { margin-top: auto; padding-top: 16px; border-top: 1px solid var(--line); color: var(--text-3); font-size: 0.8125rem; }

@media (max-width: 960px) {
  .cases { grid-template-columns: 1fr; }
}

/* 精选案例 */
.case--wide { grid-column: span 2; }
.case__title--lg { margin-top: 4px; font-size: clamp(1.5rem, 1.15rem + 1.1vw, 2.125rem); line-height: 1.3; text-wrap: balance; }
.case__metrics { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; margin-top: 6px; }
.case__metrics div {
  padding: 16px 18px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.03);
  box-shadow: inset 0 0 0 1px var(--line);
}
.case__metrics b {
  display: flex;
  align-items: baseline;
  gap: 4px;
  font: 600 clamp(1.75rem, 1.3rem + 1.4vw, 2.5rem)/1 var(--display);
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}
.case__metrics b small { color: var(--accent-hi); font-size: 0.5em; letter-spacing: 0; }
.case__metrics--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }
.case__metrics--4 b { font-size: clamp(1.375rem, 1.05rem + 1vw, 1.875rem); white-space: nowrap; }
.case--hero { background: linear-gradient(155deg, rgba(16, 185, 129, 0.14), var(--surface) 45%); }
blockquote.insight { margin: 0; }
@media (max-width: 960px) {
  .case__metrics--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
.case__metrics > div > span { display: block; margin-top: 10px; color: var(--text-2); font-size: 0.8125rem; line-height: 1.5; }
.insight {
  margin: 0;
  padding: 14px 16px;
  border-radius: 12px;
  background: rgba(16, 185, 129, 0.07);
  box-shadow: inset 0 0 0 1px rgba(16, 185, 129, 0.2);
  color: var(--text);
  font-size: 0.9375rem;
}
.insight b { color: var(--accent-hi); font-weight: 700; }

/* AI 之前：操盘过的现场 */
.stage {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  align-items: center;
  gap: clamp(32px, 5vw, 72px);
  margin-top: 20px;
  padding: clamp(28px, 3.6vw, 48px);
}
.stage .kicker { margin-bottom: 14px; }
.stage__title { margin: 0; font: 700 clamp(1.5rem, 1.15rem + 1.1vw, 2.125rem)/1.3 var(--display); }
.stage__num {
  margin-top: clamp(20px, 3vw, 32px);
  font: 600 clamp(2.25rem, 1.5rem + 2.6vw, 3.75rem)/1 var(--display);
  letter-spacing: -0.03em;
  white-space: nowrap;
  background: linear-gradient(180deg, #fff 30%, #9fe9c9);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.stage__label { margin: 12px 0 0; color: var(--accent-hi); font-size: 0.9375rem; font-weight: 600; }
.stage__list { margin: 0; padding: 0; list-style: none; }
.stage__list li {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 20px;
  padding: 18px 0;
  border-top: 1px solid var(--line);
  font: 700 clamp(1.0625rem, 0.95rem + 0.5vw, 1.3125rem)/1.45 var(--display);
  transition: color 0.4s var(--ease), padding-left 0.5s var(--ease);
}
.stage__list li:last-child { border-bottom: 1px solid var(--line); }
.stage__list li:hover { color: var(--accent-hi); padding-left: 8px; }
.stage__list span { flex: none; color: var(--text-3); font: 600 0.8125rem/1.6 var(--body); letter-spacing: 0.06em; }
@media (max-width: 860px) {
  .stage { grid-template-columns: 1fr; }
}

/* 我的方法：三条原则 */
.section--tight { padding-block: clamp(24px, 4vw, 48px) clamp(40px, 6vw, 72px); }
.principles { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.principle { padding: clamp(26px, 3vw, 40px); }
.principle__no { color: var(--accent-hi); font: 600 0.75rem/1 var(--display); letter-spacing: 0.22em; }
.principle h3 { margin: 20px 0 0; font: 700 clamp(1.375rem, 1.1rem + 0.9vw, 1.875rem)/1.35 var(--display); }
.principle p { margin: 14px 0 0; color: var(--text-2); font-size: 0.9375rem; text-wrap: pretty; }
@media (max-width: 860px) {
  .principles { grid-template-columns: 1fr; }
}
@media (max-width: 960px) {
  .case--wide { grid-column: auto; }
}
@media (max-width: 520px) {
  .case__metrics { grid-template-columns: 1fr; gap: 8px; }
  .case__metrics > div { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 12px 16px; }
  .case__metrics > div > span { margin-top: 0; text-align: right; }
}

/* AI 托管横幅 */
.managed {
  display: grid;
  grid-template-columns: minmax(180px, 0.7fr) 1fr 1fr;
  margin-top: 20px;
  padding: 8px;
}
.managed__label { display: grid; align-content: center; gap: 8px; padding: 20px 24px; }
.managed__label b { font: 700 1.25rem/1.3 var(--display); }
.managed__label span { color: var(--text-3); font-size: 0.8125rem; line-height: 1.6; }
.mitem {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 20px 24px;
  border-radius: 12px;
  text-decoration: none;
  box-shadow: -1px 0 0 var(--line);
  transition: background-color 0.4s var(--ease);
}
a.mitem:hover { background: rgba(255, 255, 255, 0.04); }
.mitem small { color: var(--accent-hi); font-size: 0.8125rem; font-weight: 600; letter-spacing: 0.04em; }
.mitem h3 { display: flex; align-items: center; gap: 10px; margin: 0; font: 700 1.1875rem/1.4 var(--display); }
.mitem h3 svg { width: 14px; height: 14px; color: var(--text-3); transition: transform 0.45s var(--ease), color 0.3s var(--ease); }
a.mitem:hover h3 svg { transform: translate(2px, -2px); color: var(--accent-hi); }
.mitem p { margin: 0; color: var(--text-2); font-size: 0.9375rem; text-wrap: pretty; }
@media (max-width: 860px) {
  .managed { grid-template-columns: 1fr; }
  .mitem { box-shadow: 0 -1px 0 var(--line); }
}

/* 场景：切换标签 */
.tabs__list {
  display: inline-flex;
  gap: 4px;
  margin-bottom: 28px;
  padding: 5px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  box-shadow: inset 0 0 0 1px var(--line);
}
.tabs__btn {
  padding: 10px 20px;
  border: 0;
  border-radius: 999px;
  background: none;
  color: var(--text-2);
  font: 600 0.9375rem/1 var(--body);
  cursor: pointer;
  transition: background-color 0.4s var(--ease), color 0.3s var(--ease), box-shadow 0.4s var(--ease);
}
.tabs__btn:hover { color: var(--text); }
.tabs__btn.is-active {
  background: var(--accent);
  color: var(--accent-ink);
  box-shadow: 0 8px 24px -10px var(--accent-glow);
}
.tabs__panel[hidden] { display: none; }

.scenes { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.scene { display: flex; flex-direction: column; gap: 12px; padding: clamp(24px, 2.6vw, 32px); }
.scene__no { color: var(--accent-hi); font: 600 0.8125rem/1 var(--display); letter-spacing: 0.16em; }
.scene h3 { margin: 4px 0 0; font: 700 clamp(1.25rem, 1.1rem + 0.5vw, 1.5rem)/1.35 var(--display); }
.scene p { margin: 0; color: var(--text-2); font-size: 0.9375rem; text-wrap: pretty; }
.scene .scene__pain { color: var(--text); font-weight: 600; }
.proof {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: auto;
  padding-top: 16px;
  border-top: 1px solid var(--line);
  color: var(--accent-hi);
  font-size: 0.8125rem;
  font-weight: 600;
}
.proof::before {
  content: "";
  flex: none;
  width: 14px;
  height: 8px;
  margin-top: -3px;
  border-left: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(-45deg);
}

.demo-note {
  margin: 0 0 20px;
  padding: 14px 18px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.03);
  box-shadow: inset 0 0 0 1px var(--line);
  color: var(--text-2);
  font-size: 0.875rem;
}
.demo-note b { color: var(--text); }
.industries { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 20px; }
.industry { display: flex; flex-direction: column; gap: 16px; padding: clamp(24px, 2.6vw, 30px); text-decoration: none; }
.industry__top { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.industry h3 { margin: 0; font: 700 1.25rem/1.4 var(--display); }
.demo-tag {
  flex: none;
  padding: 4px 10px;
  border-radius: 999px;
  box-shadow: inset 0 0 0 1px var(--line-2);
  color: var(--text-3);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
}
.industry dl { display: grid; gap: 14px; margin: 0; }
.industry dt { color: var(--accent-hi); font-size: 0.75rem; font-weight: 700; letter-spacing: 0.12em; }
.industry dd { margin: 4px 0 0; color: var(--text-2); font-size: 0.9375rem; text-wrap: pretty; }
.industry dl > div:last-child dd { color: var(--text); font-weight: 600; }
.industry--cta {
  justify-content: center;
  background: linear-gradient(160deg, rgba(16, 185, 129, 0.16), var(--surface) 60%);
}
.industry--cta p { margin: 0; color: var(--text-2); font-size: 0.9375rem; }
.industry--cta .link { align-self: flex-start; color: var(--accent-hi); }
@media (max-width: 960px) {
  .scenes, .industries { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .scenes, .industries { grid-template-columns: 1fr; }
  .tabs__list { display: flex; }
  .tabs__btn { flex: 1; padding-inline: 12px; font-size: 0.875rem; }
}

/* 观点 */
.posts {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}
.post { display: flex; flex-direction: column; overflow: hidden; text-decoration: none; }
.post__cover {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  border-radius: var(--r) var(--r) 0 0;
  background: #181c22;
}
.post__cover svg { position: absolute; inset: 0; width: 100%; height: 100%; transition: transform 1.2s var(--ease); }
.post:hover .post__cover svg { transform: scale(1.06); }
.post__cover b {
  position: absolute;
  left: 20px;
  bottom: 16px;
  color: rgba(255, 255, 255, 0.92);
  font: 700 1.125rem/1.3 var(--display);
  letter-spacing: 0.02em;
}
.post__body { display: flex; flex-direction: column; gap: 10px; flex: 1; padding: 22px 24px 24px; }
.post__meta { display: flex; gap: 12px; color: var(--text-3); font: 500 0.8125rem/1 var(--display); }
.post__meta span:first-child { color: var(--accent-hi); }
.post h3 { margin: 0; font: 700 1.1875rem/1.45 var(--display); }
.post p { margin: 0; color: var(--text-2); font-size: 0.9375rem; text-wrap: pretty; }
.post .link { margin-top: auto; align-self: flex-start; }
@media (max-width: 760px) {
  .posts { grid-template-columns: 1fr; }
}

/* 联系 */
.contact {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: clamp(32px, 5vw, 64px);
  align-items: center;
}
.cta-title {
  margin: 0;
  font: 700 clamp(2.125rem, 1.1rem + 3.4vw, 4rem)/1.12 var(--display);
  letter-spacing: -0.02em;
}
.flow { display: grid; margin: 40px 0 0; padding: 0; list-style: none; counter-reset: flow; }
.flow li {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 16px;
  padding: 18px 0;
  border-top: 1px solid var(--line);
  counter-increment: flow;
}
.flow li:last-child { border-bottom: 1px solid var(--line); }
.flow li::before {
  content: "0" counter(flow);
  color: var(--accent-hi);
  font: 600 0.875rem/1.9 var(--display);
  letter-spacing: 0.08em;
}
.flow b { display: block; font-size: 1.0625rem; }
.flow span { color: var(--text-2); font-size: 0.9375rem; }

.wxcard {
  display: grid;
  gap: 20px;
  padding: clamp(24px, 3.4vw, 40px);
}
.qrbox {
  display: grid;
  justify-items: center;
  gap: 14px;
  padding: 26px 20px 20px;
  border-radius: 16px;
  background: radial-gradient(70% 80% at 50% 0%, rgba(16, 185, 129, 0.12), transparent 70%), rgba(255, 255, 255, 0.03);
  box-shadow: inset 0 0 0 1px var(--line);
}
.qrbox span { color: var(--text-2); font-size: 0.875rem; letter-spacing: 0.04em; }
.qr {
  position: relative;
  width: min(220px, 70%);
  padding: 10px;
  border-radius: 18px;
  background: #fff;
  box-shadow: 0 0 0 6px rgba(255, 255, 255, 0.05), 0 22px 50px -18px rgba(16, 185, 129, 0.6);
}
.qr img { width: 100%; height: auto; border-radius: 8px; }

.vcard { display: flex; align-items: center; gap: 16px; }
.vcard img {
  width: 64px;
  height: 64px;
  border-radius: 16px;
  object-fit: cover;
  background: radial-gradient(circle at 50% 35%, rgba(52, 211, 153, 0.4), #1c222b 72%);
  box-shadow: 0 0 0 1px var(--line-2), 0 10px 24px -8px rgba(0, 0, 0, 0.6);
}
.vcard b { display: block; font: 700 1.25rem/1.3 var(--display); }
.vcard span { color: var(--text-2); font-size: 0.875rem; }
.wx { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 10px 14px; }
.wx__id { font: 600 clamp(1.375rem, 1.1rem + 1vw, 1.75rem)/1.2 var(--display); letter-spacing: 0.01em; -webkit-user-select: all; user-select: all; }
.copy {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 36px;
  padding-inline: 14px;
  border: 0;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  box-shadow: inset 0 0 0 1px var(--line-2);
  color: var(--text-2);
  font: 600 0.8125rem/1 var(--body);
  cursor: pointer;
  transition: background-color 0.3s var(--ease), color 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.copy:hover { background: rgba(255, 255, 255, 0.1); color: var(--text); }
.copy.is-done { background: rgba(16, 185, 129, 0.14); box-shadow: inset 0 0 0 1px rgba(16, 185, 129, 0.4); color: var(--accent-hi); }
.copy svg { width: 14px; height: 14px; }
.wxcard small { color: var(--text-3); font-size: 0.8125rem; line-height: 1.6; }
@media (max-width: 860px) {
  .contact { grid-template-columns: 1fr; }
}

/* 页脚 */
.foot {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 24px;
  align-items: end;
  padding-block: 48px calc(40px + env(safe-area-inset-bottom));
  border-top: 1px solid var(--line);
  color: var(--text-3);
  font-size: 0.8125rem;
}
.foot__big {
  grid-column: 1 / -1;
  margin: 0 0 12px;
  color: transparent;
  font: 700 clamp(3.5rem, 1rem + 11vw, 10rem)/0.9 var(--display);
  letter-spacing: -0.04em;
  -webkit-text-stroke: 1px rgba(255, 255, 255, 0.1);
  -webkit-user-select: none;
  user-select: none;
}
.foot__links { display: flex; flex-wrap: wrap; gap: 8px 24px; }
.foot a { color: var(--text-2); text-decoration: none; transition: color 0.3s var(--ease); }
.foot a:hover { color: var(--text); }
@media (max-width: 600px) {
  .foot { grid-template-columns: 1fr; }
}

/* 悬浮预约按钮 */
.fab {
  position: fixed;
  right: clamp(16px, 3vw, 32px);
  bottom: calc(clamp(16px, 3vw, 32px) + env(safe-area-inset-bottom));
  z-index: 40;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  height: 52px;
  padding: 0 22px 0 18px;
  border-radius: 999px;
  background: rgba(19, 22, 27, 0.72);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
  box-shadow: inset 0 0 0 1px rgba(52, 211, 153, 0.5), 0 0 0 4px rgba(16, 185, 129, 0.08), 0 16px 40px -12px rgba(0, 0, 0, 0.8);
  color: var(--text);
  font: 700 0.9375rem/1 var(--body);
  text-decoration: none;
  transform: translateY(140%);
  opacity: 0;
  transition: transform 0.7s var(--ease), opacity 0.5s var(--ease), box-shadow 0.4s var(--ease);
}
.fab.is-on { transform: none; opacity: 1; }
.fab:hover { box-shadow: inset 0 0 0 1px rgba(52, 211, 153, 0.9), 0 0 0 6px rgba(16, 185, 129, 0.14), 0 18px 44px -10px rgba(16, 185, 129, 0.45); }
.fab .pulse { width: 9px; height: 9px; }

/* ---------- 入场动效的初始态（只在 JS 可用时隐藏，3 秒兜底全部显示） ---------- */

.js [data-reveal] { opacity: 0; }
.js .hero__title .ln > span { transform: translateY(110%); }
.reveal-all [data-reveal] { opacity: 1 !important; transform: none !important; }
.reveal-all .hero__title .ln > span { transform: none !important; }

@media (prefers-reduced-motion: reduce) {
  .ambient, .marquee__track, .pulse::after { animation: none; }
  .lift, .lift:hover { transition: none; transform: none; }
}