/* ==========================================================================
   CORESIGN 7.0 · 星河玻璃界面
   --------------------------------------------------------------------------
   本文件是整站唯一样式表，按「设计规范 → 基础层 → 组件层 → 板块层 → 适配层」
   的顺序组织。所有可调参数集中在下面 :root 里，改主题色 / 圆角 / 动效只动这里。

   参考的界面规范要点（鸿蒙 7 官网 / ColorOS 17 官网的观感）：
     · 近白画布 + 近黑正文，超大字号标题、紧字距、大量留白
     · 居中小标题（kicker）+ 超大居中主标题，关键词走虹彩渐变
     · 大圆角：媒体卡 32–44px，按钮全圆角胶囊，圆角与尺寸成比例
     · 玻璃分层：背景模糊 + 1px 高光描边 + 内阴影提亮，不靠重投影撑层次
     · 光感：指针经过的玻璃面会亮起一块「随光标移动的高光」
     · 弹性动效：回弹曲线，位移/缩放只在 transform 上做，避免重排
     · 虹彩强调色：星芒品红 → 星云紫 → 鸿蒙蓝 → 星河青，只用在关键词与关键控件
   ========================================================================== */

/* ==========================================================================
   01 · 设计令牌
   ========================================================================== */
:root {
  color-scheme: light;

  /* —— 品牌 —— */
  --brand: #0a59f7;
  --brand-ink: #0645c8;
  --brand-2: #00bdf2;
  --brand-3: #6f5bff;
  --brand-4: #e9509b;
  --ember: #ff6a2b;
  /* 虹彩渐变：呼应鸿蒙 7 的「7」与 ColorOS 的紫粉 */
  --grad-iri: linear-gradient(100deg, #e9509b 0%, #6f5bff 38%, #0a59f7 70%, #00bdf2 100%);
  --grad-warm: linear-gradient(100deg, #ff6a2b, #e9509b 60%, #6f5bff);

  /* —— 底色与文字 —— */
  --bg: #f4f5f8;
  --bg-2: #fafbfd;
  --bg-3: #ffffff;
  --ink: #0b0e16;
  --ink-2: rgba(11, 14, 22, 0.66);
  --ink-3: rgba(11, 14, 22, 0.46);
  --ink-4: rgba(11, 14, 22, 0.24);
  --line: rgba(11, 14, 22, 0.08);
  --line-2: rgba(11, 14, 22, 0.16);

  /* —— 玻璃 —— */
  --glass-1: rgba(255, 255, 255, 0.6);
  --glass-2: rgba(255, 255, 255, 0.4);
  --glass-3: rgba(255, 255, 255, 0.8);
  --glass-bd: rgba(255, 255, 255, 0.75);
  --glass-hi: rgba(255, 255, 255, 0.95);
  --glass-ink: rgba(6, 14, 34, 0.05);
  --glass-blur: 26px;
  --glass-sat: 180%;
  --spec: rgba(255, 255, 255, 0.42);
  --aurora-a: rgba(10, 89, 247, 0.24);
  --aurora-b: rgba(0, 189, 242, 0.2);
  --aurora-c: rgba(111, 91, 255, 0.16);
  --star-ink: rgba(10, 40, 100, 0.55);
  --star-alpha: 0.5;

  /* —— 投影：玻璃靠描边和内高光，阴影只做「离地感」 —— */
  --shadow-1: 0 1px 2px rgba(10, 22, 48, 0.05), 0 10px 24px -16px rgba(10, 22, 48, 0.32);
  --shadow-2: 0 2px 8px rgba(10, 22, 48, 0.06), 0 30px 64px -30px rgba(10, 22, 48, 0.45);
  --shadow-3: 0 40px 90px -40px rgba(10, 22, 48, 0.55);
  --glow-brand: 0 18px 44px -18px rgba(10, 89, 247, 0.62);

  /* —— 圆角 —— */
  --r-xs: 10px;
  --r-sm: 14px;
  --r-md: 20px;
  --r-lg: 28px;
  --r-xl: 36px;
  --r-2xl: 44px;
  --r-pill: 999px;

  /* —— 间距 —— */
  --gut: 24px;
  --wrap: 1320px;
  --sect-y: clamp(88px, 11vw, 168px);

  /* —— 动效 —— */
  --ease-out: cubic-bezier(0.22, 0.61, 0.36, 1);
  --ease-spring: cubic-bezier(0.34, 1.42, 0.58, 1);
  --ease-soft: cubic-bezier(0.4, 0, 0.2, 1);
  --dur-1: 140ms;
  --dur-2: 260ms;
  --dur-3: 460ms;

  /* —— 字体 —— */
  --font-sans: "HarmonyOS Sans SC", "HarmonyOS Sans", "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei UI", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-mono: ui-monospace, "SF Mono", "JetBrains Mono", "Cascadia Mono", Consolas,
    "HarmonyOS Sans SC", monospace;

  /* —— 版面 —— */
  --head-h: 72px;
}

[data-theme="dark"] {
  color-scheme: dark;

  --bg: #05070f;
  --bg-2: #0a0f1d;
  --bg-3: #101728;
  --ink: #f2f5fc;
  --ink-2: rgba(238, 243, 255, 0.68);
  --ink-3: rgba(238, 243, 255, 0.46);
  --ink-4: rgba(238, 243, 255, 0.22);
  --line: rgba(255, 255, 255, 0.1);
  --line-2: rgba(255, 255, 255, 0.18);

  --glass-1: rgba(255, 255, 255, 0.07);
  --glass-2: rgba(255, 255, 255, 0.045);
  --glass-3: rgba(255, 255, 255, 0.1);
  --glass-bd: rgba(255, 255, 255, 0.14);
  --glass-hi: rgba(255, 255, 255, 0.34);
  --glass-ink: rgba(255, 255, 255, 0.04);
  --glass-blur: 30px;
  --spec: rgba(255, 255, 255, 0.12);
  --aurora-a: rgba(10, 89, 247, 0.36);
  --aurora-b: rgba(0, 189, 242, 0.22);
  --aurora-c: rgba(111, 91, 255, 0.28);
  --star-ink: rgba(190, 220, 255, 0.9);
  --star-alpha: 0.85;

  --shadow-1: 0 1px 2px rgba(0, 0, 0, 0.5), 0 14px 30px -18px rgba(0, 0, 0, 0.8);
  --shadow-2: 0 2px 10px rgba(0, 0, 0, 0.55), 0 34px 70px -34px rgba(0, 0, 0, 0.9);
  --shadow-3: 0 46px 100px -46px rgba(0, 0, 0, 0.95);
  --glow-brand: 0 20px 48px -20px rgba(10, 89, 247, 0.8);
}

@property --hb-angle {
  syntax: "<angle>";
  inherits: false;
  initial-value: 0deg;
}

/* ==========================================================================
   02 · 基础层
   ========================================================================== */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--head-h) + 24px);
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.72;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
  transition: background-color var(--dur-3) var(--ease-soft),
    color var(--dur-3) var(--ease-soft);
}

body.is-locked {
  overflow: hidden;
}

/* 开屏期间锁滚动，但不隐藏页面本体，切换更顺 */
body.is-booting {
  overflow: hidden;
}

img,
svg,
canvas {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
}

button {
  border: 0;
  background: none;
  cursor: pointer;
}

h1,
h2,
h3,
h4,
p,
figure,
ol,
ul {
  margin: 0;
}

ol,
ul {
  padding: 0;
  list-style: none;
}

em {
  font-style: normal;
}

::selection {
  background: rgba(10, 89, 247, 0.22);
  color: var(--ink);
}

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

/* —— 滚动条 —— */
* {
  scrollbar-width: thin;
  scrollbar-color: var(--ink-4) transparent;
}
*::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}
*::-webkit-scrollbar-thumb {
  background: var(--ink-4);
  border: 3px solid transparent;
  background-clip: content-box;
  border-radius: 999px;
}
*::-webkit-scrollbar-track {
  background: transparent;
}

.wrap {
  width: min(var(--wrap), 100% - var(--gut) * 2);
  margin-inline: auto;
}

.skip-link {
  position: fixed;
  top: 12px;
  left: 50%;
  translate: -50% -200%;
  z-index: 200;
  padding: 10px 18px;
  border-radius: var(--r-pill);
  background: var(--brand);
  color: #fff;
  font-size: 14px;
  transition: translate var(--dur-2) var(--ease-spring);
}
.skip-link:focus-visible {
  translate: -50% 0;
}

/* —— 通用小标签 —— */
.label {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-3);
}

.mark {
  position: relative;
  background: var(--grad-iri);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
[data-theme="dark"] .mark {
  background: linear-gradient(100deg, #ff8fc4, #a99bff 38%, #6ea8ff 70%, #66e4ff 100%);
  -webkit-background-clip: text;
  background-clip: text;
}

.chip {
  display: inline-flex;
  align-items: center;
  padding: 4px 11px;
  border-radius: var(--r-pill);
  border: 1px solid var(--line-2);
  background: var(--glass-2);
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-2);
  white-space: nowrap;
}

/* 品牌图形 sprite：只作为 <use> 的源，不参与布局 */
.svg-defs {
  position: absolute;
  width: 0;
  height: 0;
  overflow: hidden;
}

/* 主题图标：深色下显示太阳（提示可切到浅色），浅色下显示月亮 */
.toggle-ico {
  width: 20px;
  height: 20px;
}
.toggle-ico .i-sun {
  display: none;
}
[data-theme="dark"] .toggle-ico .i-sun {
  display: block;
}
[data-theme="dark"] .toggle-ico .i-moon {
  display: none;
}

/* ==========================================================================
   03 · 背景：星河 + 极光 + 网格
   ========================================================================== */
.backdrop {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
  background:
    radial-gradient(120% 80% at 50% -10%, var(--bg-2), transparent 60%),
    linear-gradient(180deg, var(--bg-2), var(--bg) 40%, var(--bg));
}

#stars {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: var(--star-alpha);
}

.backdrop__orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(70px);
  will-change: transform;
}
.backdrop__orb_a {
  width: 52vw;
  height: 52vw;
  top: -18vw;
  left: -10vw;
  background: var(--aurora-a);
  animation: drift-a 26s var(--ease-soft) infinite alternate;
}
.backdrop__orb_b {
  width: 44vw;
  height: 44vw;
  top: 8vh;
  right: -12vw;
  background: var(--aurora-b);
  animation: drift-b 32s var(--ease-soft) infinite alternate;
}
.backdrop__orb_c {
  width: 60vw;
  height: 60vw;
  bottom: -26vw;
  left: 18vw;
  background: var(--aurora-c);
  animation: drift-c 38s var(--ease-soft) infinite alternate;
}

@keyframes drift-a {
  to {
    transform: translate3d(6vw, 5vh, 0) scale(1.12);
  }
}
@keyframes drift-b {
  to {
    transform: translate3d(-7vw, 8vh, 0) scale(0.92);
  }
}
@keyframes drift-c {
  to {
    transform: translate3d(4vw, -6vh, 0) scale(1.08);
  }
}

.backdrop__grid {
  position: absolute;
  inset: 0;
  background-image: linear-gradient(to right, var(--line) 1px, transparent 1px),
    linear-gradient(to bottom, var(--line) 1px, transparent 1px);
  background-size: 88px 88px;
  mask-image: radial-gradient(120% 90% at 50% 0%, #000 10%, transparent 78%);
  opacity: 0.55;
}

.backdrop__vignette {
  position: absolute;
  inset: 0;
  background: radial-gradient(110% 80% at 50% 40%, transparent 40%, var(--bg) 118%);
}

/* 颗粒质感：让大面积渐变不生硬 */
.grain {
  position: fixed;
  inset: -50%;
  z-index: 1;
  pointer-events: none;
  opacity: 0.32;
  mix-blend-mode: soft-light;
  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='.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='160' height='160' filter='url(%23n)' opacity='.5'/%3E%3C/svg%3E");
}

/* ==========================================================================
   04 · 开屏：星河汇聚（boot）
   ========================================================================== */
.boot {
  position: fixed;
  inset: 0;
  z-index: 120;
  display: grid;
  place-items: center;
  background: radial-gradient(120% 100% at 50% 40%, #0d1a3c 0%, #05070f 62%, #01030a 100%);
  color: #eaf1ff;
  overflow: hidden;
  transition: opacity 620ms var(--ease-soft), visibility 620ms;
}

.boot::after {
  /* 收尾时的白场闪光，让深空裂开到浅色页面不突兀 */
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(60% 50% at 50% 45%, rgba(255, 255, 255, 0.9), transparent 70%);
  opacity: 0;
  pointer-events: none;
  transition: opacity 420ms var(--ease-soft);
}

.boot.is-leaving {
  opacity: 0;
  visibility: hidden;
}
.boot.is-leaving::after {
  opacity: 1;
}

.boot__stars {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.boot__aura {
  position: absolute;
  inset: 0;
  background: radial-gradient(46% 38% at 50% 46%, rgba(10, 89, 247, 0.4), transparent 70%),
    radial-gradient(34% 30% at 62% 62%, rgba(0, 189, 242, 0.3), transparent 72%),
    radial-gradient(30% 26% at 38% 60%, rgba(111, 91, 255, 0.32), transparent 72%);
  filter: blur(24px);
}

.boot__inner {
  position: relative;
  z-index: 2;
  display: grid;
  justify-items: center;
  gap: 18px;
  padding: 0 24px;
  text-align: center;
  transition: transform 620ms var(--ease-out), opacity 420ms var(--ease-soft);
}
.boot.is-leaving .boot__inner {
  transform: scale(1.08);
  opacity: 0;
}

.boot__mark {
  position: relative;
  width: clamp(96px, 15vw, 148px);
  aspect-ratio: 1;
  display: grid;
  place-items: center;
}
.boot__mark::before {
  content: "";
  position: absolute;
  inset: -14%;
  border-radius: 50%;
  background: conic-gradient(
    from 0deg,
    transparent 0deg,
    rgba(120, 190, 255, 0.4) 46deg,
    transparent 116deg,
    transparent 204deg,
    rgba(0, 220, 255, 0.3) 250deg,
    transparent 318deg
  );
  mask: radial-gradient(closest-side, transparent 86%, #000 88%);
  animation: spin 9s linear infinite;
}
.boot__mark::after {
  content: "";
  position: absolute;
  inset: 6%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.22), transparent 62%);
  filter: blur(10px);
}
.boot__mark svg {
  position: relative;
  z-index: 1;
  width: 68%;
  fill: url(#boot-mark-grad);
}
.boot__mark svg path {
  stroke: rgba(234, 241, 255, 0.9);
  stroke-width: 6;
  stroke-dasharray: var(--len, 1000);
  stroke-dashoffset: var(--len, 1000);
  transition: stroke-dashoffset 300ms linear;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.boot__brand {
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 700;
  letter-spacing: 0.42em;
  text-indent: 0.42em;
  background: linear-gradient(100deg, #ffffff, #a9d4ff 46%, #7ef0ff 72%, #ffffff);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.boot__tagline {
  font-size: 14px;
  letter-spacing: 0.22em;
  color: rgba(214, 230, 255, 0.7);
}

.boot__meter {
  position: relative;
  width: min(360px, 62vw);
  height: 3px;
  margin-top: 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.14);
  overflow: hidden;
}
.boot__meter i {
  position: absolute;
  inset: 0 100% 0 0;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--brand), var(--brand-2) 60%, #d8f6ff);
  box-shadow: 0 0 18px rgba(0, 200, 255, 0.7);
  transition: inset-inline-end 180ms linear;
}

.boot__meta {
  display: flex;
  align-items: center;
  gap: 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: rgba(190, 214, 255, 0.72);
}
.boot__meta .starspin {
  width: 15px;
  height: 15px;
  color: #7ecbff;
}
.boot__meta .starspin i {
  width: 3px;
  height: 3px;
}
.boot__meta .starspin i {
  animation-name: orbit-sm;
}
@keyframes orbit-sm {
  from {
    transform: translate(-50%, -50%) rotate(0deg) translateX(7px) scale(0.6);
    opacity: 0.5;
  }
  50% {
    transform: translate(-50%, -50%) rotate(180deg) translateX(7px) scale(1);
    opacity: 1;
  }
  to {
    transform: translate(-50%, -50%) rotate(360deg) translateX(7px) scale(0.6);
    opacity: 0.5;
  }
}
.boot__count {
  font-variant-numeric: tabular-nums;
  color: #fff;
}
.boot__phase {
  padding-left: 14px;
  border-left: 1px solid rgba(255, 255, 255, 0.18);
}

.boot__actions {
  position: absolute;
  left: 0;
  right: 0;
  bottom: max(28px, env(safe-area-inset-bottom, 0px) + 20px);
  z-index: 3;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
}

.boot__foot {
  position: absolute;
  top: max(26px, env(safe-area-inset-top, 0px) + 18px);
  left: 0;
  right: 0;
  z-index: 3;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: rgba(180, 208, 255, 0.55);
}

/* 开屏里的小尺寸玻璃控件走深空配色 */
.boot .hb--glass {
  --hb-fg: #eaf1ff;
  --hb-glass-bg: rgba(255, 255, 255, 0.1);
  --hb-glass-bd: rgba(255, 255, 255, 0.2);
}

.boot .lang {
  --lang-bg: rgba(255, 255, 255, 0.08);
  --lang-bd: rgba(255, 255, 255, 0.18);
  --lang-ink: rgba(230, 240, 255, 0.72);
}

/* ==========================================================================
   05 · 组件：玻璃按钮（华为官网式交互）
   --------------------------------------------------------------------------
   结构：
     .hb
       ├─ .hb__blur   背景模糊与底色
       ├─ .hb__spot   跟随指针的径向高光
       ├─ .hb__sheen  悬停扫过的斜向光带
       ├─ .hb__ring   悬停时旋转的描边光
       └─ .hb__label  文字（中英并置，悬停换字）
   ========================================================================== */
.hb {
  --hb-h: 52px;
  --hb-px: 26px;
  --hb-fg: var(--ink);
  --hb-glass-bg: var(--glass-1);
  --hb-glass-bd: var(--glass-bd);
  position: relative;
  isolation: isolate;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  height: var(--hb-h);
  padding: 0 var(--hb-px);
  border-radius: var(--r-pill);
  color: var(--hb-fg);
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.02em;
  white-space: nowrap;
  cursor: pointer;
  overflow: hidden;
  transform: translateZ(0);
  transition: transform var(--dur-2) var(--ease-spring), box-shadow var(--dur-2) var(--ease-out),
    color var(--dur-2) var(--ease-out);
  -webkit-tap-highlight-color: transparent;
}

.hb > * {
  position: relative;
  z-index: 1;
}

.hb__blur {
  position: absolute;
  inset: 0;
  z-index: 0;
  border-radius: inherit;
  background: var(--hb-glass-bg);
  border: 1px solid var(--hb-glass-bd);
  box-shadow: inset 0 1px 0 var(--glass-hi), inset 0 -1px 0 rgba(0, 0, 0, 0.03);
  -webkit-backdrop-filter: blur(16px) saturate(var(--glass-sat));
  backdrop-filter: blur(16px) saturate(var(--glass-sat));
  transition: background var(--dur-2) var(--ease-out), border-color var(--dur-2) var(--ease-out);
}

.hb__spot {
  position: absolute;
  inset: 0;
  z-index: 1;
  border-radius: inherit;
  opacity: 0;
  background: radial-gradient(
    140px circle at var(--mx, 50%) var(--my, 50%),
    var(--spec),
    transparent 68%
  );
  transition: opacity var(--dur-2) var(--ease-out);
  pointer-events: none;
}

.hb__sheen {
  position: absolute;
  top: -60%;
  bottom: -60%;
  left: -40%;
  width: 34%;
  z-index: 2;
  background: linear-gradient(
    100deg,
    transparent,
    rgba(255, 255, 255, 0.62),
    transparent
  );
  transform: translateX(-260%) rotate(14deg);
  opacity: 0;
  pointer-events: none;
}

.hb__ring {
  position: absolute;
  inset: 0;
  z-index: 3;
  border-radius: inherit;
  padding: 1.4px;
  opacity: 0;
  background: conic-gradient(
    from var(--hb-angle),
    transparent 0deg,
    rgba(255, 255, 255, 0.95) 40deg,
    rgba(140, 210, 255, 0.9) 80deg,
    transparent 150deg,
    transparent 360deg
  );
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  transition: opacity var(--dur-2) var(--ease-out);
  pointer-events: none;
}

.hb__label {
  display: grid;
  overflow: hidden;
  height: 1.5em;
  line-height: 1.5em;
}
.hb__text,
.hb__swap {
  grid-area: 1 / 1;
  transition: transform 420ms var(--ease-spring), opacity 260ms var(--ease-out);
}
.hb__swap {
  opacity: 0;
  transform: translateY(105%);
  font-size: 0.92em;
  letter-spacing: 0.04em;
}

@media (hover: hover) and (pointer: fine) {
  .hb:hover {
    transform: translateY(-2px);
  }
  .hb:hover .hb__spot {
    opacity: 1;
  }
  .hb:hover .hb__sheen {
    opacity: 1;
    animation: hb-sheen 760ms var(--ease-out);
  }
  .hb:hover .hb__ring {
    opacity: 1;
    animation: hb-ring 2.6s linear infinite;
  }
  .hb:hover .hb__text {
    transform: translateY(-105%);
    opacity: 0;
  }
  .hb:hover .hb__swap {
    transform: translateY(0);
    opacity: 0.86;
  }
}

@keyframes hb-sheen {
  0% {
    transform: translateX(-260%) rotate(14deg);
  }
  100% {
    transform: translateX(520%) rotate(14deg);
  }
}

@keyframes hb-ring {
  to {
    --hb-angle: 360deg;
  }
}

.hb:active {
  transform: translateY(0) scale(0.965);
  transition-duration: var(--dur-1);
}
.hb:active .hb__blur {
  background: color-mix(in srgb, var(--hb-glass-bg), var(--ink) 8%);
}

/* —— 主按钮：鸿蒙蓝渐变 + 玻璃高光 —— */
.hb--primary {
  --hb-fg: #fff;
  --hb-glass-bg: linear-gradient(135deg, #1f7bff, var(--brand) 46%, #0546c9);
  --hb-glass-bd: rgba(255, 255, 255, 0.34);
  box-shadow: var(--glow-brand);
}
.hb--primary .hb__blur {
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.5),
    inset 0 -8px 20px -12px rgba(0, 0, 0, 0.5);
}
.hb--primary::after {
  /* 顶部一层薄玻璃，模拟「液面」 */
  content: "";
  position: absolute;
  inset: 0 0 55% 0;
  z-index: 1;
  border-radius: inherit;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.24), transparent);
  pointer-events: none;
}

/* —— 次按钮：通透玻璃 —— */
.hb--glass {
  --hb-fg: var(--ink);
}
.hb--glass .hb__blur {
  box-shadow: inset 0 1px 0 var(--glass-hi), inset 0 0 0 1px rgba(255, 255, 255, 0.06),
    var(--shadow-1);
}
[data-theme="dark"] .hb--glass .hb__blur {
  box-shadow: inset 0 1px 0 var(--glass-hi), var(--shadow-1);
}

/* —— 文字按钮：只有下划线光 —— */
.hb--ghost {
  --hb-h: 44px;
  --hb-px: 12px;
  --hb-fg: var(--ink-2);
  overflow: visible;
}
.hb--ghost .hb__blur {
  background: transparent;
  border-color: transparent;
  box-shadow: none;
  -webkit-backdrop-filter: none;
  backdrop-filter: none;
}
.hb--ghost .hb__blur::after {
  content: "";
  position: absolute;
  left: 12px;
  right: 12px;
  bottom: 8px;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur-2) var(--ease-out);
}
.hb--ghost:hover .hb__blur::after {
  transform: scaleX(1);
}

/* —— 圆形图标按钮 —— */
.hb--icon {
  --hb-h: 44px;
  --hb-px: 0;
  width: 44px;
  border-radius: 50%;
}
.hb--icon svg {
  width: 20px;
  height: 20px;
}

.hb--sm {
  --hb-h: 42px;
  --hb-px: 20px;
  font-size: 14px;
}
.hb--lg {
  --hb-h: 60px;
  --hb-px: 34px;
  font-size: 16.5px;
}
.hb--block {
  width: 100%;
}

.hb[aria-disabled="true"],
.hb:disabled {
  opacity: 0.5;
  pointer-events: none;
}

/* —— 加载态：星河环绕 —— */
.starspin {
  position: relative;
  display: inline-block;
  width: 18px;
  height: 18px;
  flex: none;
}
.starspin::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: conic-gradient(from 0deg, transparent, currentColor, transparent 62%);
  mask: radial-gradient(closest-side, transparent 60%, #000 62%);
  animation: spin 1.1s linear infinite;
}
.starspin i {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 3.5px;
  height: 3.5px;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 8px currentColor;
  animation: orbit 1.5s linear infinite;
}
.starspin i:nth-child(2) {
  animation-delay: -0.5s;
}
.starspin i:nth-child(3) {
  animation-delay: -1s;
}
@keyframes orbit {
  from {
    transform: translate(-50%, -50%) rotate(0deg) translateX(9px) scale(0.6);
    opacity: 0.5;
  }
  50% {
    transform: translate(-50%, -50%) rotate(180deg) translateX(9px) scale(1);
    opacity: 1;
  }
  to {
    transform: translate(-50%, -50%) rotate(360deg) translateX(9px) scale(0.6);
    opacity: 0.5;
  }
}

.hb.is-loading {
  pointer-events: none;
}
.hb.is-loading .hb__label {
  opacity: 0.65;
}

/* ==========================================================================
   06 · 组件：玻璃面 / 玻璃片
   ========================================================================== */
.glass {
  position: relative;
  background: var(--glass-1);
  border: 1px solid var(--glass-bd);
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-sat));
  backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-sat));
  box-shadow: inset 0 1px 0 var(--glass-hi), var(--shadow-1);
}
.glass_thin {
  background: var(--glass-2);
  box-shadow: inset 0 1px 0 var(--glass-hi);
}

/* 指针经过时，玻璃面亮起一块跟着走的高光 */
[data-spec] {
  overflow: hidden;
}
[data-spec]::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 4;
  border-radius: inherit;
  opacity: 0;
  pointer-events: none;
  background: radial-gradient(
    280px circle at var(--mx, 50%) var(--my, 0%),
    var(--spec),
    transparent 60%
  );
  transition: opacity var(--dur-2) var(--ease-out);
}
[data-spec]:hover::after {
  opacity: 1;
}

/* ==========================================================================
   07 · 顶栏 / 导航 / 语言 / 主题
   ========================================================================== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 60;
  padding: 14px 0;
  transition: padding var(--dur-3) var(--ease-out), transform var(--dur-3) var(--ease-out);
}
.header.is-condensed {
  padding: 8px 0;
}
.header.is-hidden {
  transform: translateY(-124%);
}

.header__inner {
  display: flex;
  align-items: center;
  gap: 16px;
  min-height: 56px;
  padding: 0 10px 0 18px;
  border-radius: var(--r-pill);
  border: 1px solid transparent;
  transition: background var(--dur-3) var(--ease-out), border-color var(--dur-3) var(--ease-out),
    box-shadow var(--dur-3) var(--ease-out), backdrop-filter var(--dur-3) var(--ease-out);
}
.header.is-condensed .header__inner {
  background: var(--glass-1);
  border-color: var(--glass-bd);
  box-shadow: inset 0 1px 0 var(--glass-hi), var(--shadow-1);
  -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-sat));
  backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-sat));
}

.header__logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex: none;
  padding: 6px 4px;
  border-radius: var(--r-pill);
}
.header__logo_svg {
  width: 30px;
  height: 30px;
  fill: var(--brand);
  transition: transform var(--dur-3) var(--ease-spring);
}
.header__logo:hover .header__logo_svg {
  transform: rotate(-8deg) scale(1.06);
}
.header__logo_txt {
  display: grid;
  line-height: 1.15;
}
.header__logo_txt b {
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.16em;
}
.header__logo_txt i {
  font-family: var(--font-mono);
  font-size: 9.5px;
  font-style: normal;
  letter-spacing: 0.2em;
  color: var(--ink-3);
}

.header__nav {
  display: flex;
  align-items: center;
  gap: 2px;
  margin-inline: auto;
  padding: 4px;
  border-radius: var(--r-pill);
  background: var(--glass-2);
  border: 1px solid var(--glass-bd);
}

.navlink {
  position: relative;
  display: grid;
  place-items: center;
  height: 38px;
  padding: 0 16px;
  border-radius: var(--r-pill);
  font-size: 14px;
  color: var(--ink-2);
  overflow: hidden;
  transition: color var(--dur-2) var(--ease-out), background var(--dur-2) var(--ease-out);
}
.navlink__wrap {
  position: relative;
  display: grid;
  overflow: hidden;
  height: 1.4em;
  line-height: 1.4em;
}
.navlink__text,
.navlink__hover {
  grid-area: 1 / 1;
  transition: transform 400ms var(--ease-spring), opacity var(--dur-2) var(--ease-out);
}
.navlink__hover {
  opacity: 0;
  transform: translateY(105%);
  font-size: 0.86em;
  letter-spacing: 0.05em;
  color: var(--brand);
}
@media (hover: hover) {
  .navlink:hover {
    color: var(--ink);
    background: var(--glass-2);
  }
  .navlink:hover .navlink__text {
    transform: translateY(-105%);
    opacity: 0;
  }
  .navlink:hover .navlink__hover {
    transform: translateY(0);
    opacity: 1;
  }
}
.navlink.is-active {
  color: var(--ink);
  background: var(--glass-3);
  box-shadow: inset 0 1px 0 var(--glass-hi), var(--shadow-1);
}
.navlink.is-active::after {
  content: "";
  position: absolute;
  bottom: 6px;
  left: 50%;
  width: 14px;
  height: 2px;
  translate: -50% 0;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--brand), var(--brand-2));
}

.header__right {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: none;
}

/* 语言切换：滑轨胶囊 */
.lang {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 4px;
  border-radius: var(--r-pill);
  background: var(--lang-bg, var(--glass-2));
  border: 1px solid var(--lang-bd, var(--glass-bd));
  box-shadow: inset 0 1px 0 var(--glass-hi);
}
.lang__pill {
  position: absolute;
  top: 4px;
  bottom: 4px;
  left: 4px;
  width: 46px;
  border-radius: var(--r-pill);
  background: var(--glass-3);
  box-shadow: inset 0 1px 0 var(--glass-hi), var(--shadow-1);
  transition: transform var(--dur-3) var(--ease-spring);
}
.lang[data-locale="en"] .lang__pill {
  transform: translateX(46px);
}
.lang__btn {
  position: relative;
  z-index: 1;
  width: 46px;
  height: 30px;
  border-radius: var(--r-pill);
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--lang-ink, var(--ink-3));
  transition: color var(--dur-2) var(--ease-out);
}
.lang__btn.is-active {
  color: var(--ink);
}

@media (max-width: 900px) {
  .header__nav,
  .header__cta {
    display: none;
  }
  .header__right {
    margin-left: auto;
  }
}

/* 汉堡与抽屉 */
.burger {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: var(--r-pill);
  border: 1px solid var(--glass-bd);
  background: var(--glass-2);
  box-shadow: inset 0 1px 0 var(--glass-hi);
}
.burger span {
  display: block;
  width: 18px;
  height: 1.6px;
  margin: 4px auto;
  border-radius: 2px;
  background: var(--ink);
  transition: transform var(--dur-2) var(--ease-spring), opacity var(--dur-1) linear;
}
.burger[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(5.6px) rotate(45deg);
}
.burger[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}
.burger[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-5.6px) rotate(-45deg);
}
@media (max-width: 900px) {
  .burger {
    display: block;
  }
}

.menu {
  position: fixed;
  inset: 0;
  z-index: 55;
  display: grid;
  align-content: center;
  gap: 6px;
  padding: calc(var(--head-h) + 24px) 28px 40px;
  background: var(--bg);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--dur-3) var(--ease-out), visibility var(--dur-3);
}
.menu.is-open {
  opacity: 1;
  visibility: visible;
}
.menu__item {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
  font-size: 26px;
  font-weight: 500;
  opacity: 0;
  transform: translateY(14px);
  transition: opacity var(--dur-3) var(--ease-out), transform var(--dur-3) var(--ease-spring);
  transition-delay: calc(var(--i, 0) * 42ms);
}
.menu.is-open .menu__item {
  opacity: 1;
  transform: none;
}
.menu__index {
  font-size: 10.5px;
}

/* ==========================================================================
   08 · 侧边章节导轨
   ========================================================================== */
.rail {
  position: fixed;
  top: 50%;
  right: 22px;
  z-index: 50;
  translate: 0 -50%;
}
.rail__list {
  display: grid;
  gap: 12px;
}
.rail__item a {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 10px;
}
.rail__line {
  width: 18px;
  height: 1.6px;
  border-radius: 2px;
  background: var(--ink-4);
  transition: width var(--dur-3) var(--ease-spring), background var(--dur-2) var(--ease-out);
}
.rail__label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-3);
  opacity: 0;
  translate: 6px 0;
  transition: opacity var(--dur-2) var(--ease-out), translate var(--dur-2) var(--ease-out);
  white-space: nowrap;
}
/* 只在指针悬停时展开文字，避免和正文右边缘打架 */
.rail__item:hover .rail__label {
  opacity: 1;
  translate: 0 0;
}
.rail__item.is-active .rail__line {
  width: 34px;
  background: linear-gradient(90deg, var(--brand-2), var(--brand));
}
@media (max-width: 1100px) {
  .rail {
    display: none;
  }
}

/* ==========================================================================
   09 · 板块外壳
   ========================================================================== */
.panel {
  position: relative;
  z-index: 2;
  padding: var(--sect-y) 0;
}

.section__head {
  display: grid;
  gap: 18px;
  margin-bottom: clamp(34px, 5vw, 62px);
}

.section__label {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}
.label__num {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--brand);
}
.label__line {
  width: 34px;
  height: 1px;
  background: linear-gradient(90deg, var(--brand), transparent);
}

.section__title {
  max-width: 20ch;
  font-size: clamp(30px, 4.6vw, 56px);
  font-weight: 700;
  line-height: 1.16;
  letter-spacing: -0.01em;
}
.section__sub {
  max-width: 62ch;
  color: var(--ink-2);
  font-size: 15.5px;
}

/* 文字逐行浮现 */
.mask {
  display: block;
  overflow: hidden;
}
.mask > * {
  display: block;
  transform: translateY(105%);
  transition: transform 760ms var(--ease-out);
  transition-delay: calc(var(--d, 0) * 90ms);
}
.is-in.mask > *,
.mask.is-in > * {
  transform: none;
}

[data-reveal] {
  opacity: 0;
  transform: translateY(22px);
  transition: opacity 640ms var(--ease-out), transform 760ms var(--ease-spring);
  transition-delay: calc(var(--d, 0) * 70ms);
}
[data-reveal].is-in {
  opacity: 1;
  transform: none;
}

/* ==========================================================================
   10 · 首屏
   ========================================================================== */
.hero {
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding-top: calc(var(--head-h) + 40px);
  padding-bottom: 60px;
}
.hero__inner {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
  align-items: center;
  gap: clamp(28px, 5vw, 72px);
}

.hero__label {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 22px;
  padding: 7px 16px;
  border-radius: var(--r-pill);
}
.hero__label i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--brand);
  box-shadow: 0 0 0 4px rgba(10, 89, 247, 0.16);
  animation: pulse 2.4s var(--ease-soft) infinite;
}
@keyframes pulse {
  50% {
    box-shadow: 0 0 0 8px rgba(10, 89, 247, 0);
  }
}

.hero__title {
  font-size: clamp(42px, 7.4vw, 92px);
  font-weight: 700;
  line-height: 1.04;
  letter-spacing: -0.02em;
}
.hero__title_line {
  display: block;
}
.hero__title_line:nth-child(2) {
  background: var(--grad-iri);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
[data-theme="dark"] .hero__title_line:nth-child(2) {
  background: linear-gradient(100deg, #ff8fc4 6%, #a99bff 38%, #6ea8ff 72%, #66e4ff 100%);
  -webkit-background-clip: text;
  background-clip: text;
}
.hero__title_line span {
  display: inline-block;
  opacity: 0;
  transform: translateY(0.5em) rotate(4deg);
  transition: opacity 520ms var(--ease-out), transform 720ms var(--ease-spring);
  transition-delay: calc(var(--ci, 0) * 42ms);
}
.hero__title.is-in .hero__title_line span {
  opacity: 1;
  transform: none;
}

.hero__lead {
  max-width: 52ch;
  margin-top: 24px;
  color: var(--ink-2);
  font-size: clamp(15px, 1.15vw, 17px);
}
.hero__lead strong {
  color: var(--ink);
  font-weight: 500;
  letter-spacing: 0.04em;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  margin-top: 34px;
}

.hero__badges {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 30px;
}
.badge {
  display: grid;
  gap: 2px;
  padding: 10px 16px;
  border-radius: var(--r-md);
}
.badge__key {
  font-size: 10px;
  color: var(--brand);
}
.badge__val {
  font-size: 13px;
  color: var(--ink-2);
}

/* 右侧：星河环 + 品牌标识 */
.hero__stage {
  position: relative;
  display: grid;
  place-items: center;
  min-height: clamp(320px, 42vw, 520px);
}
.hero__rings {
  position: absolute;
  top: 50%;
  left: 50%;
  width: min(92%, 560px);
  aspect-ratio: 1;
  translate: -50% -50%;
  border-radius: 50%;
  pointer-events: none;
}
.hero__rings::before,
.hero__rings::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
}
.hero__rings::before {
  background: conic-gradient(
    from 0deg,
    transparent 0deg,
    rgba(10, 89, 247, 0.42) 40deg,
    transparent 112deg,
    transparent 200deg,
    rgba(0, 189, 242, 0.34) 244deg,
    transparent 320deg
  );
  mask: radial-gradient(closest-side, transparent 90%, #000 92%);
  animation: spin 16s linear infinite;
}
.hero__rings::after {
  inset: 13%;
  border: 1px dashed var(--line-2);
  mask: none;
  animation: spin 60s linear infinite reverse;
}

.hero__mark {
  position: relative;
  width: min(58%, 320px);
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  border-radius: 50%;
  transition: transform var(--dur-3) var(--ease-out);
}
.hero__mark_svg {
  width: 74%;
  fill: url(#mark-grad);
  filter: drop-shadow(0 18px 40px rgba(10, 89, 247, 0.34));
  transition: transform var(--dur-3) var(--ease-spring);
}
.hero__stage:hover .hero__mark_svg {
  transform: scale(1.03) rotate(-3deg);
}
.hero__mark_halo {
  position: absolute;
  inset: -6%;
  border-radius: 50%;
  background: radial-gradient(circle at 32% 24%, rgba(255, 255, 255, 0.34), transparent 42%),
    radial-gradient(circle at 72% 80%, rgba(0, 189, 242, 0.16), transparent 56%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.1), rgba(255, 255, 255, 0.02) 46%, rgba(10, 89, 247, 0.1));
  border: 1px solid var(--glass-bd);
  -webkit-backdrop-filter: blur(14px) saturate(160%);
  backdrop-filter: blur(14px) saturate(160%);
  box-shadow: inset 0 1px 0 var(--glass-hi), inset 0 -26px 46px -30px rgba(0, 0, 0, 0.6),
    var(--shadow-2);
}
.hero__mark_halo::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: 50%;
  background: conic-gradient(
    from 210deg,
    transparent 0deg,
    rgba(255, 255, 255, 0.5) 40deg,
    transparent 110deg
  );
  mask: radial-gradient(closest-side, transparent 94%, #000 96%);
}

.hero__gizmo {
  position: absolute;
  left: 50%;
  bottom: 4%;
  translate: -50% 0;
  padding: 8px 16px;
  border-radius: var(--r-pill);
  font-size: 11px;
  color: var(--ink-3);
  white-space: nowrap;
}

.hero__foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-top: 46px;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}

.hero__news {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 10px 18px;
  border-radius: var(--r-pill);
  transition: transform var(--dur-2) var(--ease-spring);
}
.hero__news:hover {
  transform: translateY(-2px);
}
.hero__news_tag {
  color: var(--brand);
}
.hero__news_text {
  font-size: 13.5px;
  color: var(--ink-2);
}

.hero__scroll {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.hero__scroll i {
  width: 22px;
  height: 34px;
  border-radius: var(--r-pill);
  border: 1px solid var(--line-2);
  position: relative;
}
.hero__scroll i::after {
  content: "";
  position: absolute;
  top: 7px;
  left: 50%;
  width: 3px;
  height: 6px;
  translate: -50% 0;
  border-radius: 3px;
  background: var(--brand);
  animation: wheel 2s var(--ease-soft) infinite;
}
@keyframes wheel {
  0% {
    transform: translateY(0);
    opacity: 0;
  }
  30% {
    opacity: 1;
  }
  100% {
    transform: translateY(14px);
    opacity: 0;
  }
}

@media (max-width: 980px) {
  .hero__inner {
    grid-template-columns: 1fr;
  }
  .hero__stage {
    order: -1;
    min-height: 300px;
  }
  .hero__mark {
    width: min(62%, 260px);
  }
}

/* ==========================================================================
   11 · 关于
   ========================================================================== */
.about__statement {
  font-size: clamp(26px, 4.2vw, 52px);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.01em;
}

.about__cols {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  margin-top: clamp(38px, 5vw, 64px);
}
.card {
  display: grid;
  gap: 12px;
  padding: clamp(24px, 3vw, 38px);
  border-radius: var(--r-xl);
}
.card__label {
  color: var(--brand);
}
.card__text {
  color: var(--ink-2);
  font-size: 15.5px;
}

.stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
  margin-top: 20px;
}
.stats__item {
  display: grid;
  gap: 8px;
  padding: 24px;
  border-radius: var(--r-lg);
  transition: transform var(--dur-2) var(--ease-spring);
}
.stats__item:hover {
  transform: translateY(-4px);
}
.stats__num {
  font-size: clamp(28px, 3.6vw, 42px);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.01em;
}
.stats__num em {
  font-size: 0.5em;
  color: var(--brand);
  vertical-align: super;
}
.stats__key {
  color: var(--ink-3);
}

@media (max-width: 900px) {
  .about__cols,
  .stats {
    grid-template-columns: 1fr;
  }
  .stats {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* ==========================================================================
   12 · 团队
   ========================================================================== */
.members {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(232px, 1fr));
  gap: 18px;
}
.member {
  border-radius: var(--r-xl);
  transition: transform var(--dur-2) var(--ease-spring), box-shadow var(--dur-2) var(--ease-out);
}
.member:hover {
  transform: translateY(-4px);
}
.member.is-open {
  grid-column: 1 / -1;
}

.member__trigger {
  position: relative;
  display: grid;
  gap: 14px;
  width: 100%;
  padding: 22px;
  text-align: left;
}
.member__head {
  display: flex;
  align-items: center;
  gap: 12px;
}
.member__photo {
  position: relative;
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  flex: none;
  border-radius: var(--r-md);
  background: linear-gradient(140deg, rgba(10, 89, 247, 0.18), rgba(0, 189, 242, 0.14));
  border: 1px solid var(--glass-bd);
  box-shadow: inset 0 1px 0 var(--glass-hi);
  font-weight: 700;
  font-size: 17px;
  color: var(--brand);
}
.member__id {
  display: grid;
  gap: 3px;
  min-width: 0;
}
.member__name {
  font-size: 17px;
  font-weight: 700;
}
.member__meta {
  font-size: 10px;
  letter-spacing: 0.08em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.member__index {
  position: absolute;
  top: 20px;
  right: 20px;
  color: var(--ink-4);
}
.member__role {
  color: var(--brand);
}
.member__quote {
  font-size: 14.5px;
  color: var(--ink-2);
  padding-right: 46px;
}
.member__icon {
  position: absolute;
  right: 20px;
  bottom: 20px;
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  border: 1px solid var(--line-2);
  color: var(--ink-3);
  transition: transform var(--dur-3) var(--ease-spring), background var(--dur-2) var(--ease-out);
}
.member.is-open .member__icon {
  transform: rotate(45deg);
  background: var(--brand);
  color: #fff;
  border-color: transparent;
}

.member__panel {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 520ms var(--ease-out);
}
.member.is-open .member__panel {
  grid-template-rows: 1fr;
}
.member__panel_inner {
  overflow: hidden;
}
.member__panel_inner > div {
  padding: 0 22px 24px;
  border-top: 1px solid var(--line);
}
.member__bio {
  margin-top: 16px;
  color: var(--ink-2);
  font-size: 15px;
  max-width: 74ch;
}

/* ==========================================================================
   13 · 作品
   ========================================================================== */
.works__list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 18px;
}
.work__row {
  position: relative;
  display: grid;
  gap: 16px;
  width: 100%;
  padding: 16px;
  border-radius: var(--r-xl);
  text-align: left;
  overflow: hidden;
  isolation: isolate;
  transition: transform var(--dur-2) var(--ease-spring), box-shadow var(--dur-2) var(--ease-out);
}
.work:hover .work__row {
  transform: translateY(-4px);
}

.work__thumb {
  position: relative;
  display: block;
  aspect-ratio: 4 / 3;
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--glass-ink);
}
.work__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 700ms var(--ease-out), filter var(--dur-3) var(--ease-out);
}
.work:hover .work__thumb img {
  transform: scale(1.05);
}

/* 悬停时整面遮罩 + 底部信息滑出，参考华为商城的卡片语义 */
.work__thumb::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(4, 10, 24, 0) 30%, rgba(4, 10, 24, 0.72));
  opacity: 0;
  transition: opacity var(--dur-3) var(--ease-out);
}
.work:hover .work__thumb::after,
.work__row:focus-visible .work__thumb::after {
  opacity: 1;
}

.work__index {
  position: absolute;
  top: 28px;
  left: 28px;
  z-index: 2;
  padding: 4px 10px;
  border-radius: var(--r-pill);
  background: rgba(8, 14, 28, 0.42);
  border: 1px solid rgba(255, 255, 255, 0.24);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  color: #fff;
}

.work__body {
  display: grid;
  gap: 4px;
  padding: 0 6px;
}
.work__title {
  font-size: 18px;
  font-weight: 700;
}
.work__sub {
  color: var(--ink-3);
}
.work__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 0 6px 6px;
}
.work__icon {
  position: absolute;
  top: 26px;
  right: 26px;
  z-index: 2;
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.42);
  background: rgba(8, 14, 28, 0.44);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  color: #fff;
  opacity: 0;
  transform: translateY(10px) scale(0.9);
  transition: opacity var(--dur-2) var(--ease-out), transform var(--dur-3) var(--ease-spring);
}
.work:hover .work__icon,
.work__row:focus-visible .work__icon {
  opacity: 1;
  transform: none;
}

.works__note {
  margin-top: 26px;
  text-align: center;
}

/* 全屏预览 */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 110;
  display: grid;
  place-items: center;
  padding: 24px;
}
.lightbox[hidden] {
  display: none;
}
.lightbox__backdrop {
  position: absolute;
  inset: 0;
  background: color-mix(in srgb, var(--bg) 62%, #04060f);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
  animation: fade var(--dur-2) var(--ease-out);
}
@keyframes fade {
  from {
    opacity: 0;
  }
}
.lightbox__inner {
  position: relative;
  display: grid;
  gap: 16px;
  width: min(1080px, 100%);
  max-height: 90svh;
  padding: 18px;
  border-radius: var(--r-2xl);
  overflow: auto;
  animation: pop 420ms var(--ease-spring);
}
@keyframes pop {
  from {
    opacity: 0;
    transform: scale(0.94) translateY(14px);
  }
}
.lightbox__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.lightbox__figure {
  display: grid;
  gap: 12px;
}
.lightbox__figure img {
  width: 100%;
  max-height: 66svh;
  object-fit: contain;
  border-radius: var(--r-lg);
  background: var(--glass-ink);
}
.lightbox__caption {
  display: grid;
  gap: 8px;
  padding: 0 4px;
}
.lightbox__title {
  font-size: 18px;
  font-weight: 700;
}
.lightbox__desc {
  max-width: 74ch;
  color: var(--ink-2);
  font-size: 14.5px;
}
.lightbox__desc[hidden] {
  display: none;
}
.lightbox__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.lightbox__nav {
  position: absolute;
  inset: auto 0 46%;
  display: flex;
  justify-content: space-between;
  padding: 0 22px;
  pointer-events: none;
}
.lightbox__nav > * {
  pointer-events: auto;
}

/* ==========================================================================
   14 · 打样（PCB 矢量工艺演示）
   ========================================================================== */
.pcb__layout {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(280px, 0.65fr);
  gap: 18px;
}

.pcb__stage {
  position: relative;
  display: grid;
  place-items: center;
  min-height: clamp(320px, 42vw, 520px);
  padding: 24px;
  border-radius: var(--r-2xl);
  overflow: hidden;
}
.pcb__board {
  width: min(100%, 620px);
  filter: drop-shadow(0 30px 60px rgba(6, 40, 24, 0.35));
  transform: perspective(1200px) rotateX(14deg) rotateZ(-6deg);
  transition: transform 700ms var(--ease-out);
}
.pcb__stage:hover .pcb__board {
  transform: perspective(1200px) rotateX(6deg) rotateZ(-2deg) scale(1.02);
}
.pcb__board .pcb-layer {
  transition: opacity var(--dur-2) var(--ease-out), filter var(--dur-2) var(--ease-out);
}
.pcb__stage[data-focus="copper"] .pcb-layer:not([data-layer="copper"]),
.pcb__stage[data-focus="mask"] .pcb-layer:not([data-layer="mask"]),
.pcb__stage[data-focus="silk"] .pcb-layer:not([data-layer="silk"]),
.pcb__stage[data-focus="labels"] .pcb-layer:not([data-layer="labels"]) {
  opacity: 0.12;
}

.pcb__glow {
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(
    240px circle at var(--lx, 42%) var(--ly, 26%),
    rgba(255, 255, 255, 0.5),
    transparent 62%
  );
  mix-blend-mode: soft-light;
  opacity: 0.85;
  transition: background var(--dur-2) linear;
}

.pcb__hud {
  position: absolute;
  left: 22px;
  bottom: 22px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.pcb__hud_item {
  display: grid;
  gap: 1px;
  padding: 8px 13px;
  border-radius: var(--r-sm);
}
.pcb__hud_item b {
  font-family: var(--font-mono);
  font-size: 13px;
  font-variant-numeric: tabular-nums;
}

.pcb__side {
  display: grid;
  gap: 14px;
  align-content: start;
}
.pcb__panel {
  display: grid;
  gap: 14px;
  padding: 22px;
  border-radius: var(--r-xl);
}
.pcb__panel_title {
  color: var(--brand);
}
.pcb__toggles {
  display: grid;
  gap: 8px;
}

.toggle {
  display: flex;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 11px 14px;
  border-radius: var(--r-md);
  border: 1px solid transparent;
  background: var(--glass-2);
  text-align: left;
  transition: background var(--dur-2) var(--ease-out), border-color var(--dur-2) var(--ease-out),
    transform var(--dur-2) var(--ease-spring);
}
.toggle:hover {
  transform: translateX(2px);
  border-color: var(--line-2);
}
.toggle[aria-pressed="true"] {
  background: var(--glass-3);
  border-color: var(--glass-bd);
  box-shadow: inset 0 1px 0 var(--glass-hi);
}
.toggle__track {
  position: relative;
  width: 34px;
  height: 20px;
  flex: none;
  border-radius: var(--r-pill);
  background: var(--ink-4);
  transition: background var(--dur-2) var(--ease-out);
}
.toggle__track::after {
  content: "";
  position: absolute;
  top: 2px;
  left: 2px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #fff;
  box-shadow: 0 2px 6px rgba(0, 0, 0, 0.25);
  transition: transform var(--dur-3) var(--ease-spring);
}
.toggle[aria-pressed="true"] .toggle__track {
  background: linear-gradient(120deg, var(--brand), var(--brand-2));
}
.toggle[aria-pressed="true"] .toggle__track::after {
  transform: translateX(14px);
}
.toggle__text {
  font-size: 14px;
}

.pcb__range {
  display: grid;
  gap: 10px;
}
.pcb__range input[type="range"] {
  width: 100%;
  height: 26px;
  appearance: none;
  background: none;
}
.pcb__range input[type="range"]::-webkit-slider-runnable-track {
  height: 4px;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--brand), var(--brand-2));
}
.pcb__range input[type="range"]::-webkit-slider-thumb {
  appearance: none;
  width: 18px;
  height: 18px;
  margin-top: -7px;
  border-radius: 50%;
  background: #fff;
  border: 1px solid var(--glass-bd);
  box-shadow: 0 4px 12px rgba(10, 22, 48, 0.3);
}
.pcb__range input[type="range"]::-moz-range-track {
  height: 4px;
  border-radius: 4px;
  background: linear-gradient(90deg, var(--brand), var(--brand-2));
}
.pcb__range input[type="range"]::-moz-range-thumb {
  width: 18px;
  height: 18px;
  border: 1px solid var(--glass-bd);
  border-radius: 50%;
  background: #fff;
}

.pcb__note {
  color: var(--ink-3);
  font-size: 13px;
  line-height: 1.7;
}

@media (max-width: 980px) {
  .pcb__layout {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   15 · 方向
   ========================================================================== */
.service__layout {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(24px, 4vw, 64px);
  align-items: start;
}
.service__lead {
  font-size: clamp(22px, 2.9vw, 36px);
  font-weight: 700;
  line-height: 1.34;
}
.service__en {
  margin-top: 16px;
  color: var(--ink-3);
  font-size: 15px;
}
.service__list {
  display: grid;
  gap: 12px;
}
.service__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  gap: 20px;
  align-items: start;
  padding: 26px;
  border-radius: var(--r-xl);
  transition: transform var(--dur-2) var(--ease-spring);
}
.service__item:hover {
  transform: translateY(-3px);
}
.service__item > span:nth-child(2) {
  display: grid;
  gap: 2px;
}
.service__num {
  color: var(--brand);
}
.service__name {
  display: block;
  font-size: 19px;
  font-weight: 700;
}
.service__en {
  display: block;
  color: var(--ink-3);
}
.service__desc {
  display: block;
  margin-top: 8px;
  color: var(--ink-2);
  font-size: 14.5px;
}
.service__arrow {
  align-self: start;
  color: var(--ink-3);
  transition: transform var(--dur-2) var(--ease-spring), color var(--dur-2) var(--ease-out);
}
.service__item:hover .service__arrow {
  transform: translate(3px, -3px);
  color: var(--brand);
}

@media (max-width: 900px) {
  .service__layout {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   16 · 联系
   ========================================================================== */
.contact__title {
  font-size: clamp(30px, 5.4vw, 66px);
  font-weight: 700;
  line-height: 1.16;
  letter-spacing: -0.015em;
}
.contact__lead {
  max-width: 56ch;
  margin-top: 20px;
  color: var(--ink-2);
}

.contact__links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 14px;
  margin-top: clamp(30px, 4vw, 52px);
}
.social {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 16px;
  padding: 20px;
  border-radius: var(--r-xl);
  transition: transform var(--dur-2) var(--ease-spring);
}
.social:hover {
  transform: translateY(-4px);
}
.social__icon {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border-radius: var(--r-md);
  background: var(--glass-2);
  border: 1px solid var(--glass-bd);
  box-shadow: inset 0 1px 0 var(--glass-hi);
}
.social__icon img {
  width: 22px;
  height: 22px;
  object-fit: contain;
}
.social__body {
  display: grid;
  gap: 2px;
  min-width: 0;
}
.social__name {
  font-size: 16px;
  font-weight: 700;
}
.social__handle {
  font-size: 10.5px;
}
.social__arrow {
  color: var(--ink-3);
  transition: transform var(--dur-2) var(--ease-spring), color var(--dur-2) var(--ease-out);
}
.social:hover .social__arrow {
  transform: translate(3px, -3px);
  color: var(--brand);
}

/* ==========================================================================
   17 · 页脚
   ========================================================================== */
.footer {
  position: relative;
  z-index: 2;
  margin-top: 40px;
  padding: clamp(48px, 6vw, 90px) 0 32px;
  border-top: 1px solid var(--line);
  background: color-mix(in srgb, var(--bg-2) 70%, transparent);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
}
.footer__cols {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) repeat(2, minmax(0, 0.8fr)) minmax(0, 1fr);
  gap: clamp(24px, 3vw, 48px);
}
.footer__mark {
  display: inline-flex;
  align-items: center;
  gap: 12px;
}
.footer__mark_svg {
  width: 40px;
  height: 40px;
  fill: var(--brand);
}
.footer__claim {
  margin-top: 18px;
  font-size: clamp(20px, 2.4vw, 30px);
  font-weight: 700;
  max-width: 16ch;
  line-height: 1.28;
}
.footer__col {
  display: grid;
  gap: 12px;
  align-content: start;
}
.footer__col_label {
  color: var(--brand);
}
.footer__links {
  display: grid;
  gap: 8px;
  font-size: 14.5px;
  color: var(--ink-2);
}
.footer__links a {
  width: fit-content;
  transition: color var(--dur-2) var(--ease-out), transform var(--dur-2) var(--ease-out);
}
.footer__links a:hover {
  color: var(--brand);
  transform: translateX(3px);
}
.footer__addr {
  margin-top: 16px;
  color: var(--ink-3);
  font-size: 13.5px;
  line-height: 1.8;
}
.footer__clock {
  display: grid;
  gap: 4px;
  margin-top: 18px;
  padding: 14px 16px;
  border-radius: var(--r-md);
}
.footer__clock b {
  font-family: var(--font-mono);
  font-size: 18px;
  font-variant-numeric: tabular-nums;
  font-weight: 500;
}
.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: clamp(40px, 5vw, 72px);
  padding-top: 22px;
  border-top: 1px solid var(--line);
}

@media (max-width: 900px) {
  .footer__cols {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
@media (max-width: 560px) {
  .hero__actions {
    flex-direction: column;
    align-items: stretch;
  }
  .hero__actions .hb {
    width: 100%;
  }
  .hero__stage {
    min-height: 268px;
  }
}

@media (max-width: 560px) {
  .footer__cols {
    grid-template-columns: 1fr;
  }
  .footer__bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}

/* ==========================================================================
   18 · 提示条
   ========================================================================== */
.toast {
  position: fixed;
  left: 50%;
  bottom: 32px;
  z-index: 130;
  max-width: min(460px, calc(100vw - 40px));
  padding: 13px 22px;
  border-radius: var(--r-pill);
  font-size: 14px;
  translate: -50% 0;
  animation: toast-in 420ms var(--ease-spring);
}
.toast[hidden] {
  display: none;
}
@keyframes toast-in {
  from {
    opacity: 0;
    transform: translateY(14px) scale(0.96);
  }
}

/* ==========================================================================
   19 · 响应式与无障碍收尾
   ========================================================================== */
@media (max-width: 720px) {
  :root {
    --gut: 18px;
    --head-h: 64px;
  }
  .header__logo_txt i {
    display: none;
  }
  .members,
  .works__list {
    grid-template-columns: 1fr;
  }
  .lightbox {
    padding: 12px;
  }
  .lightbox__inner {
    border-radius: var(--r-xl);
    padding: 14px;
  }
  .hero__foot {
    flex-direction: column;
    align-items: flex-start;
  }
  .pcb__hud {
    position: static;
    margin-top: 18px;
  }
  .pcb__stage {
    grid-auto-rows: min-content;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  [data-reveal] {
    opacity: 1;
    transform: none;
  }
  .mask > * {
    transform: none;
  }
  .hero__title_line span {
    opacity: 1;
    transform: none;
  }
}

@media print {
  .backdrop,
  .grain,
  .rail,
  .header,
  .boot,
  .toast {
    display: none !important;
  }
  .panel {
    padding: 24px 0;
  }
  body {
    background: #fff;
    color: #000;
  }
}

/* ==========================================================================
   20 · 7.0 版面节奏：居中标头 + 超大标题 + 渐变色关键词
   --------------------------------------------------------------------------
   这一层是 7.0 相对 6.0 的主要变化，参照鸿蒙 7 / ColorOS 17 官网：
     小标题（kicker）居中 → 超大标题居中 → 一段说明 → 内容
   关键词用 .grad / .mark 走虹彩渐变。
   ========================================================================== */
.sec {
  position: relative;
  z-index: 2;
  padding: clamp(72px, 9vw, 150px) 0;
}

/* 整段换成深色（深浅分节交替，像鸿蒙 7 官网那样） */
[data-tone="dark"] {
  --bg: #05070f;
  --bg-2: #0a0f1d;
  --bg-3: #101728;
  --ink: #f4f7fd;
  --ink-2: rgba(240, 245, 255, 0.7);
  --ink-3: rgba(240, 245, 255, 0.48);
  --ink-4: rgba(240, 245, 255, 0.22);
  --line: rgba(255, 255, 255, 0.1);
  --line-2: rgba(255, 255, 255, 0.18);
  --glass-1: rgba(255, 255, 255, 0.07);
  --glass-2: rgba(255, 255, 255, 0.045);
  --glass-3: rgba(255, 255, 255, 0.11);
  --glass-bd: rgba(255, 255, 255, 0.14);
  --glass-hi: rgba(255, 255, 255, 0.32);
  --spec: rgba(255, 255, 255, 0.13);
  --shadow-1: 0 1px 2px rgba(0, 0, 0, 0.5), 0 14px 30px -18px rgba(0, 0, 0, 0.8);
  --shadow-2: 0 2px 10px rgba(0, 0, 0, 0.55), 0 34px 70px -34px rgba(0, 0, 0, 0.9);
  position: relative;
  color: var(--ink);
  background: var(--bg);
}
[data-tone="dark"] .sec__glow {
  opacity: 1;
}

/* 深色分节的极光底 */
.sec__glow {
  position: absolute;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
}
.sec__glow::before,
.sec__glow::after {
  content: "";
  position: absolute;
  width: 60vw;
  height: 60vw;
  border-radius: 50%;
  filter: blur(90px);
}
.sec__glow::before {
  top: -28vw;
  left: -14vw;
  background: rgba(10, 89, 247, 0.36);
}
.sec__glow::after {
  right: -18vw;
  bottom: -30vw;
  background: rgba(111, 91, 255, 0.3);
}

.sec__head {
  display: grid;
  justify-items: center;
  gap: 20px;
  max-width: 900px;
  margin: 0 auto clamp(38px, 5vw, 72px);
  text-align: center;
}

.kicker {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: clamp(13px, 1.1vw, 15px);
  font-weight: 500;
  letter-spacing: 0.01em;
  color: var(--ink-3);
}
.kicker::before {
  content: "";
  width: 18px;
  height: 1px;
  background: currentColor;
  opacity: 0.5;
}
.kicker b {
  font-family: var(--font-mono);
  font-size: 0.85em;
  font-weight: 500;
  color: var(--brand);
}

.t-h2 {
  font-size: clamp(30px, 4.6vw, 64px);
  font-weight: 700;
  line-height: 1.16;
  letter-spacing: -0.022em;
}
.t-h3 {
  font-size: clamp(20px, 1.9vw, 26px);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: -0.01em;
}
.t-lead {
  max-width: 62ch;
  font-size: clamp(15px, 1.15vw, 17px);
  color: var(--ink-2);
}

.grad {
  background: var(--grad-iri);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
[data-theme="dark"] .grad {
  background: linear-gradient(100deg, #ff9ecb, #b0a2ff 38%, #74adff 70%, #6ee9ff 100%);
  -webkit-background-clip: text;
  background-clip: text;
}

/* ==========================================================================
   21 · 首屏：镜头 + 标题 + 指标条
   ========================================================================== */
.hero {
  position: relative;
  z-index: 2;
  display: grid;
  place-items: center;
  min-height: 100svh;
  padding: calc(var(--head-h) + 40px) 0 56px;
  text-align: center;
}
.hero__stack {
  display: grid;
  justify-items: center;
  gap: 18px;
}
.hero__title {
  max-width: 18ch;
  font-size: clamp(38px, 7.4vw, 88px);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.03em;
}
.hero__title span {
  display: inline-block;
  opacity: 0;
  transform: translateY(0.42em);
  transition: opacity 560ms var(--ease-out), transform 760ms var(--ease-spring);
  transition-delay: calc(var(--ci, 0) * 36ms);
}
.hero__title.is-in span {
  opacity: 1;
  transform: none;
}
.hero__lead {
  max-width: 52ch;
}
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
  margin-top: 6px;
}

/* 中央玻璃镜头 */
.hero__lens {
  position: relative;
  display: grid;
  place-items: center;
  width: min(60vw, 320px);
  aspect-ratio: 1;
  margin-top: 4px;
}
.hero__lens::before,
.hero__lens::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
}
.hero__lens::before {
  inset: 0;
  background: conic-gradient(
    from 0deg,
    transparent 0deg,
    rgba(233, 80, 155, 0.55) 40deg,
    transparent 108deg,
    transparent 190deg,
    rgba(0, 189, 242, 0.5) 236deg,
    transparent 306deg
  );
  mask: radial-gradient(closest-side, transparent 90%, #000 92%);
  animation: spin 14s linear infinite;
}
.hero__lens::after {
  inset: 15%;
  border: 1px dashed var(--line-2);
  animation: spin 70s linear infinite reverse;
}
.hero__lens_glass {
  position: absolute;
  inset: 8%;
  border-radius: 50%;
  background: radial-gradient(circle at 32% 24%, rgba(255, 255, 255, 0.5), transparent 44%),
    radial-gradient(circle at 72% 80%, rgba(0, 189, 242, 0.2), transparent 56%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.16), rgba(255, 255, 255, 0.03) 48%, rgba(233, 80, 155, 0.1));
  border: 1px solid var(--glass-bd);
  -webkit-backdrop-filter: blur(16px) saturate(170%);
  backdrop-filter: blur(16px) saturate(170%);
  box-shadow: inset 0 1px 0 var(--glass-hi), inset 0 -30px 52px -34px rgba(0, 0, 0, 0.55),
    var(--shadow-2);
}
.hero__lens_mark {
  position: relative;
  z-index: 1;
  width: 46%;
  fill: url(#mark-grad);
  filter: drop-shadow(0 16px 36px rgba(10, 89, 247, 0.4));
  animation: float-y 7s var(--ease-soft) infinite alternate;
}
@keyframes float-y {
  to {
    transform: translateY(-10px);
  }
}

/* 指标条 */
.metrics {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  width: min(860px, 100%);
  margin: clamp(18px, 3vw, 40px) auto 0;
  padding: 8px;
  border-radius: var(--r-2xl);
}
.metrics__item {
  display: grid;
  gap: 2px;
  padding: 16px 12px;
  border-radius: var(--r-xl);
  text-align: center;
  transition: background var(--dur-2) var(--ease-out);
}
.metrics__item:hover {
  background: var(--glass-2);
}
.metrics__num {
  font-size: clamp(22px, 2.4vw, 32px);
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
}
.metrics__num em {
  font-size: 0.5em;
  vertical-align: super;
  color: var(--brand-3);
}
@media (max-width: 720px) {
  .metrics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

/* ==========================================================================
   22 · 媒体卡 + 胶囊分页（参考 ColorOS 17 的轮播控件）
   ========================================================================== */
.mcards {
  display: grid;
  gap: 16px;
}
.mcard {
  position: relative;
  display: block;
  width: 100%;
  border-radius: var(--r-2xl);
  overflow: hidden;
  isolation: isolate;
  background: var(--glass-ink);
  border: 1px solid var(--glass-bd);
  box-shadow: var(--shadow-2);
  text-align: left;
}
.mcard__media {
  display: block;
  aspect-ratio: 16 / 9;
}
.mcard__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 900ms var(--ease-out);
}
.mcard:hover .mcard__media img {
  transform: scale(1.03);
}
.mcard__veil {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(4, 8, 20, 0.05) 30%, rgba(4, 8, 20, 0.72));
  pointer-events: none;
}
.mcard__cap {
  position: absolute;
  left: 0;
  right: 0;
  bottom: clamp(20px, 3.4vw, 46px);
  display: grid;
  justify-items: center;
  gap: 8px;
  padding: 0 24px;
  text-align: center;
  color: #fff;
}
.mcard__cap h3 {
  font-size: clamp(20px, 2.6vw, 34px);
  font-weight: 700;
  letter-spacing: -0.02em;
}
.mcard__cap p {
  max-width: 52ch;
  font-size: clamp(13px, 1.05vw, 15px);
  color: rgba(255, 255, 255, 0.78);
}
.mcard__tags {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 6px;
  margin-top: 4px;
}
.mcard__tags .chip {
  background: rgba(255, 255, 255, 0.14);
  border-color: rgba(255, 255, 255, 0.24);
  color: rgba(255, 255, 255, 0.92);
}

/* 轮播：一条轨道，一次显示一张 */
.carousel {
  position: relative;
}
.carousel__viewport {
  overflow-x: auto;
  overflow-y: hidden;
  border-radius: var(--r-2xl);
  scroll-snap-type: x mandatory;
  scrollbar-width: none;
  -ms-overflow-style: none;
  overscroll-behavior-x: contain;
}
.carousel__viewport::-webkit-scrollbar {
  display: none;
}
.carousel__track {
  display: flex;
  gap: 16px;
}
.carousel__slide {
  flex: 0 0 100%;
  min-width: 0;
  scroll-snap-align: start;
}

/* 胶囊分页 + 圆形箭头 */
.pager {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin-top: 22px;
}
.pager__dots {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-radius: var(--r-pill);
  background: var(--glass-2);
  border: 1px solid var(--glass-bd);
  box-shadow: inset 0 1px 0 var(--glass-hi);
}
.pager__dot {
  width: 8px;
  height: 8px;
  border-radius: var(--r-pill);
  background: var(--ink-4);
  transition: width var(--dur-3) var(--ease-spring), background var(--dur-2) var(--ease-out);
}
.pager__dot.is-active {
  width: 26px;
  background: var(--grad-iri);
}
.pager__btn {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid var(--glass-bd);
  background: var(--glass-2);
  box-shadow: inset 0 1px 0 var(--glass-hi);
  color: var(--ink-2);
  transition: transform var(--dur-2) var(--ease-spring), background var(--dur-2) var(--ease-out),
    color var(--dur-2) var(--ease-out);
}
.pager__btn:hover {
  transform: translateY(-2px);
  background: var(--glass-3);
  color: var(--ink);
}

/* ==========================================================================
   23 · 胶囊标签栏（参考 ColorOS 17 顶部二级导航）
   ========================================================================== */
.tabs {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 6px;
  padding: 6px;
  border-radius: var(--r-pill);
  background: var(--glass-2);
  border: 1px solid var(--glass-bd);
  box-shadow: inset 0 1px 0 var(--glass-hi);
}
.tabs__btn {
  height: 38px;
  padding: 0 18px;
  border-radius: var(--r-pill);
  font-size: 14px;
  color: var(--ink-2);
  transition: background var(--dur-2) var(--ease-out), color var(--dur-2) var(--ease-out),
    box-shadow var(--dur-2) var(--ease-out);
}
.tabs__btn:hover {
  color: var(--ink);
}
.tabs__btn[aria-pressed="true"] {
  color: var(--ink);
  background: var(--glass-3);
  box-shadow: inset 0 1px 0 var(--glass-hi), var(--shadow-1);
}

/* ==========================================================================
   24 · 业务卡（6 项，可展开说明）
   ========================================================================== */
.svcs {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 16px;
}
.svc {
  display: grid;
  align-content: start;
  gap: 12px;
  padding: clamp(22px, 2.4vw, 32px);
  border-radius: var(--r-2xl);
  cursor: pointer;
  transition: transform var(--dur-2) var(--ease-spring);
}
.svc:hover {
  transform: translateY(-4px);
}
.svc__icon {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: var(--r-md);
  background: var(--glass-2);
  border: 1px solid var(--glass-bd);
  box-shadow: inset 0 1px 0 var(--glass-hi);
  color: var(--brand);
}
.svc__icon svg {
  width: 22px;
  height: 22px;
}
.svc__name {
  font-size: 19px;
  font-weight: 700;
}
.svc__en {
  color: var(--brand);
}
.svc__more {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 520ms var(--ease-out);
}
.svc.is-open .svc__more {
  grid-template-rows: 1fr;
}
.svc__more > div {
  overflow: hidden;
}
.svc__desc {
  padding-top: 10px;
  color: var(--ink-2);
  font-size: 14.5px;
}
.svc__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 12px;
}
@media (max-width: 1000px) {
  .svcs {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}
@media (max-width: 640px) {
  .svcs {
    grid-template-columns: 1fr;
  }
}

/* ==========================================================================
   25 · 团队 + 开放席位
   ========================================================================== */
.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 16px;
}
.seat {
  display: grid;
  place-content: center;
  justify-items: center;
  gap: 10px;
  min-height: 190px;
  padding: 24px;
  border-radius: var(--r-2xl);
  border: 1px dashed var(--line-2);
  text-align: center;
  color: var(--ink-3);
  transition: border-color var(--dur-2) var(--ease-out), color var(--dur-2) var(--ease-out),
    background var(--dur-2) var(--ease-out);
}
.seat:hover {
  border-color: var(--brand);
  color: var(--ink);
  background: var(--glass-2);
}
.seat__plus {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid currentColor;
  font-size: 20px;
  line-height: 1;
}

/* ==========================================================================
   26 · 走马灯（伙伴 logo 墙 / 评价墙）
   ========================================================================== */
.flow {
  display: grid;
  gap: 14px;
  overflow: hidden;
  mask-image: linear-gradient(90deg, transparent, #000 6%, #000 94%, transparent);
}
.flow__row {
  overflow: hidden;
}
.flow__track {
  display: flex;
  width: max-content;
  animation: flow-x 46s linear infinite;
}
.flow__row--b .flow__track {
  animation-duration: 58s;
  animation-direction: reverse;
}
.flow__row--c .flow__track {
  animation-duration: 52s;
}
.flow:hover .flow__track {
  animation-play-state: paused;
}
.flow__group {
  display: flex;
  gap: 14px;
  padding-right: 14px;
}
@keyframes flow-x {
  to {
    transform: translateX(-50%);
  }
}

.partner {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 20px;
  border-radius: var(--r-xl);
  background: var(--glass-2);
  border: 1px solid var(--glass-bd);
  box-shadow: inset 0 1px 0 var(--glass-hi);
  white-space: nowrap;
}
.partner__logo {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  flex: none;
  border-radius: var(--r-sm);
  background: var(--bg-3);
}
.partner__logo svg {
  width: 26px;
  height: 26px;
}
[data-theme="dark"] .partner__logo,
[data-tone="dark"] .partner__logo {
  background: rgba(255, 255, 255, 0.08);
}
.partner__name {
  display: block;
  font-size: 15px;
  font-weight: 500;
}
.partner__full {
  display: block;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-3);
}

.quote {
  display: grid;
  gap: 16px;
  width: min(380px, 80vw);
  padding: 24px;
  border-radius: var(--r-2xl);
  background: var(--glass-2);
  border: 1px solid var(--glass-bd);
  box-shadow: inset 0 1px 0 var(--glass-hi);
  white-space: normal;
}
.quote__text {
  font-size: 15px;
  color: var(--ink-2);
}
.quote__who {
  display: flex;
  align-items: center;
  gap: 10px;
}
.quote__avatar {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  flex: none;
  border-radius: 50%;
  background: var(--grad-iri);
  color: #fff;
  font-size: 13px;
  font-weight: 700;
}
.quote__name {
  display: block;
  font-size: 14px;
  font-weight: 500;
}
.quote__org {
  display: block;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-3);
}

/* ==========================================================================
   27 · CTA 通栏
   ========================================================================== */
.cta-band {
  position: relative;
  overflow: hidden;
  padding: clamp(48px, 7vw, 96px) clamp(24px, 5vw, 72px);
  border-radius: var(--r-2xl);
  background: linear-gradient(120deg, #0a1c4d, #10206b 42%, #2a1a63 74%, #4a1a54);
  color: #f4f7ff;
  text-align: center;
}
.cta-band::before {
  content: "";
  position: absolute;
  inset: -40% -10%;
  background: radial-gradient(50% 60% at 20% 20%, rgba(0, 189, 242, 0.4), transparent 60%),
    radial-gradient(46% 56% at 82% 74%, rgba(233, 80, 155, 0.4), transparent 62%),
    radial-gradient(40% 50% at 55% 50%, rgba(111, 91, 255, 0.36), transparent 64%);
  filter: blur(30px);
  animation: drift-a 24s var(--ease-soft) infinite alternate;
}
.cta-band > * {
  position: relative;
}
.cta-band h2 {
  font-size: clamp(28px, 4.2vw, 56px);
  font-weight: 700;
  line-height: 1.16;
  letter-spacing: -0.025em;
}
.cta-band p {
  max-width: 48ch;
  margin: 16px auto 0;
  color: rgba(226, 236, 255, 0.76);
}
.cta-band__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
  margin-top: 30px;
}
.cta-band .hb--glass {
  --hb-fg: #f4f7ff;
  --hb-glass-bg: rgba(255, 255, 255, 0.12);
  --hb-glass-bd: rgba(255, 255, 255, 0.22);
}

/* ==========================================================================
   28 · 子页：页面头
   ========================================================================== */
.page-hero {
  position: relative;
  z-index: 2;
  display: grid;
  justify-items: center;
  gap: 20px;
  padding: calc(var(--head-h) + clamp(56px, 9vw, 130px)) 0 clamp(28px, 5vw, 60px);
  text-align: center;
}
.page-hero h1 {
  font-size: clamp(34px, 6vw, 76px);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.028em;
}
.breadcrumb {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--ink-3);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

/* ==========================================================================
   29 · 作品页：筛选 + 网格
   ========================================================================== */
.filters {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 6px;
  padding: 6px;
  border-radius: var(--r-pill);
  background: var(--glass-2);
  border: 1px solid var(--glass-bd);
  box-shadow: inset 0 1px 0 var(--glass-hi);
  width: fit-content;
  margin: 0 auto;
}
.filter {
  height: 38px;
  padding: 0 18px;
  border-radius: var(--r-pill);
  font-size: 14px;
  color: var(--ink-2);
  transition: background var(--dur-2) var(--ease-out), color var(--dur-2) var(--ease-out),
    box-shadow var(--dur-2) var(--ease-out);
}
.filter:hover {
  color: var(--ink);
}
.filter.is-active {
  color: var(--ink);
  background: var(--glass-3);
  box-shadow: inset 0 1px 0 var(--glass-hi), var(--shadow-1);
}

.works-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
  margin-top: clamp(26px, 4vw, 48px);
}
.work[hidden] {
  display: none;
}

.works__count {
  margin-top: 18px;
  text-align: center;
  color: var(--ink-3);
}

/* ==========================================================================
   30 · 联系页：渠道 / 流程 / 常见问题
   ========================================================================== */
.channels {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 16px;
}
.channel {
  display: grid;
  gap: 14px;
  align-content: start;
  padding: 24px;
  border-radius: var(--r-2xl);
  transition: transform var(--dur-2) var(--ease-spring);
}
.channel:hover {
  transform: translateY(-4px);
}
.channel__head {
  display: flex;
  align-items: center;
  gap: 12px;
}
.channel__icon {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  flex: none;
  border-radius: var(--r-md);
  background: var(--glass-2);
  border: 1px solid var(--glass-bd);
  box-shadow: inset 0 1px 0 var(--glass-hi);
  color: var(--brand);
}
.channel__icon img,
.channel__icon svg {
  width: 22px;
  height: 22px;
  object-fit: contain;
}
.channel__name {
  display: block;
  font-size: 16px;
  font-weight: 700;
}
.channel__value {
  display: block;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--ink-3);
}
.channel__note {
  color: var(--ink-2);
  font-size: 14px;
}
.channel__foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-top: 12px;
  border-top: 1px solid var(--line);
}

.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  counter-reset: step;
}
.step {
  position: relative;
  display: grid;
  gap: 10px;
  align-content: start;
  padding: 26px;
  border-radius: var(--r-2xl);
}
.step__num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  color: var(--brand);
}
.step__title {
  font-size: 18px;
  font-weight: 700;
}
.step__text {
  color: var(--ink-2);
  font-size: 14.5px;
}

.faq {
  display: grid;
  gap: 10px;
  max-width: 880px;
  margin: 0 auto;
}
.faq__item {
  border-radius: var(--r-xl);
  overflow: hidden;
}
.faq__q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  padding: 20px 24px;
  text-align: left;
  font-size: 16px;
  font-weight: 500;
}
.faq__sign {
  position: relative;
  display: grid;
  place-items: center;
  width: 26px;
  height: 26px;
  flex: none;
  border-radius: 50%;
  border: 1px solid var(--line-2);
  color: var(--ink-3);
  transition: transform var(--dur-3) var(--ease-spring), background var(--dur-2) var(--ease-out),
    color var(--dur-2) var(--ease-out);
}
.faq__item.is-open .faq__sign {
  transform: rotate(45deg);
  background: var(--brand);
  border-color: transparent;
  color: #fff;
}
.faq__a {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows 460ms var(--ease-out);
}
.faq__item.is-open .faq__a {
  grid-template-rows: 1fr;
}
.faq__a > div {
  overflow: hidden;
}
.faq__a p {
  padding: 0 24px 22px;
  color: var(--ink-2);
  font-size: 14.5px;
}

/* ==========================================================================
   31 · 404
   ========================================================================== */
.notfound {
  display: grid;
  place-items: center;
  min-height: 100svh;
  padding: calc(var(--head-h) + 40px) 0 60px;
  text-align: center;
}
.notfound__code {
  font-size: clamp(84px, 18vw, 220px);
  font-weight: 700;
  line-height: 1;
  letter-spacing: -0.05em;
  background: var(--grad-iri);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* ==========================================================================
   32 · 7.0 适配
   ========================================================================== */
@media (max-width: 900px) {
  .works-grid {
    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  }
}
@media (max-width: 560px) {
  .hero__actions {
    flex-direction: column;
    align-items: stretch;
    width: 100%;
  }
  .hero__actions .hb {
    width: 100%;
  }
  .works-grid {
    grid-template-columns: 1fr;
  }
  .pager {
    gap: 8px;
  }
  .tabs__btn,
  .filter {
    padding: 0 14px;
  }
}