/* ==========================================================================
   星核智算 STARCORE COMPUTE —— 官网首页样式
   ========================================================================== */

/* ---------- Design Tokens ---------- */
:root {
  --bg:          #05070e;
  --bg-alt:      #080c17;
  --surface:     rgba(255, 255, 255, 0.038);
  --surface-2:   rgba(255, 255, 255, 0.06);
  --line:        rgba(255, 255, 255, 0.09);
  --line-strong: rgba(255, 255, 255, 0.16);

  --text:  #e9eef9;
  --text-2:#b3bed4;
  --muted: #7f8ca6;

  --cyan:   #22d3ee;
  --blue:   #3b82f6;
  --indigo: #6366f1;
  --violet: #a855f7;
  --teal:   #2dd4bf;
  --amber:  #f59e0b;
  --pink:   #ec4899;

  --grad: linear-gradient(112deg, #22d3ee 0%, #6366f1 52%, #a855f7 100%);
  --grad-soft: linear-gradient(140deg, rgba(34, 211, 238, .16), rgba(168, 85, 247, .14));

  --r-sm: 10px;
  --r:    16px;
  --r-lg: 22px;
  --r-xl: 28px;

  --shadow: 0 24px 60px -24px rgba(0, 0, 0, .75);
  --glow-cyan:   0 0 0 1px rgba(34, 211, 238, .35), 0 12px 40px -12px rgba(34, 211, 238, .45);
  --glow-violet: 0 0 0 1px rgba(168, 85, 247, .32), 0 14px 44px -14px rgba(168, 85, 247, .42);

  --ease: cubic-bezier(.22, .61, .36, 1);

  --font: "HarmonyOS Sans SC", "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB",
          system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
  --mono: "JetBrains Mono", "SFMono-Regular", "SF Mono", Consolas, "Liberation Mono", monospace;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.7;
  letter-spacing: .01em;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
h1, h2, h3, h4, h5 { margin: 0; line-height: 1.24; letter-spacing: -.015em; font-weight: 700; }
p { margin: 0; }
a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }
img, svg { display: block; max-width: 100%; }
button { font: inherit; color: inherit; }
input, select { font: inherit; }
::selection { background: rgba(34, 211, 238, .32); }

.container { width: min(1200px, 100% - 48px); margin-inline: auto; }

/* ---------- Reusable SVG icon stroke ---------- */
.ico {
  width: 1em; height: 1em; flex: none;
  fill: none; stroke: currentColor; stroke-width: 2;
  stroke-linecap: round; stroke-linejoin: round;
}

/* ---------- Gradients / Text ---------- */
.grad-text {
  background: var(--grad);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent; color: transparent;
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
  --btn-py: 12px; --btn-px: 22px;
  position: relative;
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: var(--btn-py) var(--btn-px);
  border: 1px solid transparent; border-radius: 999px;
  font-size: 15px; font-weight: 600; letter-spacing: .01em;
  cursor: pointer; white-space: nowrap;
  transition: transform .28s var(--ease), box-shadow .28s var(--ease),
              background-color .28s var(--ease), border-color .28s var(--ease), color .28s var(--ease);
}
.btn .ico { font-size: 1.05em; transition: transform .28s var(--ease); }
.btn:hover .ico { transform: translateX(3px); }

.btn--primary {
  background: var(--grad); color: var(--on-grad);
  box-shadow: 0 10px 30px -12px rgba(99, 102, 241, .9);
  font-weight: 700;
}
.btn--primary:hover { transform: translateY(-2px); box-shadow: 0 18px 44px -14px rgba(99, 102, 241, 1); }

.btn--glass {
  background: var(--surface-2); color: var(--text);
  border-color: var(--line-strong);
  backdrop-filter: blur(12px);
}
.btn--glass:hover { background: var(--tint-strong); border-color: var(--tint-line); transform: translateY(-2px); }

.btn--ghost { background: transparent; color: var(--text-2); border-color: var(--line); }
.btn--ghost:hover { color: var(--text); border-color: var(--line-strong); background: var(--surface); }

.btn--sm  { --btn-py: 9px;  --btn-px: 18px; font-size: 14px; }
.btn--lg  { --btn-py: 15px; --btn-px: 30px; font-size: 16px; }
.btn--block { width: 100%; }

.link-arrow {
  display: inline-flex; align-items: center; gap: 7px;
  font-size: 14.5px; font-weight: 600;
  color: var(--cyan);
  transition: gap .28s var(--ease), color .28s var(--ease);
}
.link-arrow:hover { gap: 12px; color: #67e8f9; }

/* ==========================================================================
   Nav
   ========================================================================== */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 90;
  transition: background-color .35s var(--ease), border-color .35s var(--ease), backdrop-filter .35s;
  border-bottom: 1px solid transparent;
}
.nav.is-scrolled {
  background: var(--nav-bg);
  backdrop-filter: blur(18px) saturate(160%);
  border-bottom-color: var(--line);
}
.nav__inner {
  width: min(1200px, 100% - 48px); margin-inline: auto;
  height: 72px; display: flex; align-items: center; gap: 28px;
}
.brand { display: flex; align-items: center; gap: 11px; }
.brand__mark { width: 34px; height: 34px; flex: none; border-radius: 10px; overflow: hidden;
  box-shadow: 0 8px 22px -10px rgba(99, 102, 241, .95); }
.brand__text { display: flex; flex-direction: column; line-height: 1.1;
  font-size: 17px; font-weight: 800; letter-spacing: .02em; }
.brand__text em {
  font-style: normal; font-family: var(--mono);
  font-size: 8.5px; font-weight: 500; letter-spacing: .22em; color: var(--muted);
}

.nav__menu { display: flex; align-items: center; gap: 4px; margin-left: auto; }
.nav__link {
  position: relative; padding: 8px 14px; border-radius: 999px;
  font-size: 14.5px; color: var(--text-2);
  transition: color .25s, background-color .25s;
}
.nav__link:hover, .nav__link.is-active { color: var(--text); background: var(--surface-2); }
.nav__link--mobile { display: none; }
.nav__actions { display: flex; align-items: center; gap: 10px; }

.nav__toggle {
  display: none; width: 40px; height: 40px; padding: 0;
  background: var(--surface-2); border: 1px solid var(--line); border-radius: 11px;
  flex-direction: column; align-items: center; justify-content: center; gap: 4px;
  cursor: pointer;
}
.nav__toggle span { display: block; width: 17px; height: 1.8px; background: var(--text); border-radius: 2px;
  transition: transform .3s var(--ease), opacity .3s var(--ease); }
.nav__toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(5.8px) rotate(45deg); }
.nav__toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav__toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-5.8px) rotate(-45deg); }

.nav__progress {
  height: 2px; width: 0;
  background: var(--grad);
  box-shadow: 0 0 12px rgba(34, 211, 238, .8);
  transition: width .1s linear;
}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero { position: relative; padding: 132px 0 96px; overflow: hidden; }
.hero__canvas { position: absolute; inset: 0; width: 100%; height: 100%; opacity: .55; }
.hero__grid {
  position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(var(--tint) 1px, transparent 1px),
    linear-gradient(90deg, var(--tint) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 78% 62% at 50% 34%, #000 22%, transparent 76%);
  -webkit-mask-image: radial-gradient(ellipse 78% 62% at 50% 34%, #000 22%, transparent 76%);
}
.hero__glow { position: absolute; border-radius: 50%; filter: blur(90px); pointer-events: none; }
.hero__glow--a { width: 620px; height: 620px; left: -180px; top: -160px;
  background: radial-gradient(circle, rgba(34, 211, 238, .30), transparent 68%); }
.hero__glow--b { width: 660px; height: 660px; right: -200px; top: 40px;
  background: radial-gradient(circle, rgba(168, 85, 247, .26), transparent 68%); }

.hero__inner {
  position: relative; z-index: 2;
  display: grid; grid-template-columns: 1.08fr .92fr; gap: 60px; align-items: center;
}

.pill {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 7px 16px 7px 12px; border-radius: 999px;
  background: var(--surface-2); border: 1px solid var(--line-strong);
  font-size: 13.5px; color: var(--text-2); backdrop-filter: blur(10px);
}
.pill__dot {
  width: 7px; height: 7px; border-radius: 50%; background: #34d399;
  box-shadow: 0 0 0 4px rgba(52, 211, 153, .16);
  animation: pulse 2.2s infinite;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 4px rgba(52, 211, 153, .16); }
  50%      { box-shadow: 0 0 0 9px rgba(52, 211, 153, .04); }
}

.hero__title {
  margin: 26px 0 22px;
  font-size: clamp(2.4rem, 4.5vw, 3.85rem);
  line-height: 1.14; letter-spacing: -.03em; font-weight: 800;
}
.hero__desc { max-width: 560px; font-size: 16.5px; color: var(--text-2); }
.hero__cta { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 34px; }
.hero__badges { display: flex; flex-wrap: wrap; gap: 22px; margin-top: 30px; }
.hero__badges li { display: flex; align-items: center; gap: 7px; font-size: 14px; color: var(--muted); }
.hero__badges .ico { font-size: 15px; color: var(--teal); stroke-width: 2.6; }

/* --- 实时监控面板 --- */
.panel {
  position: relative;
  padding: 22px;
  border-radius: var(--r-xl);
  background: linear-gradient(160deg, var(--tint-strong), var(--tint-weak));
  border: 1px solid var(--line-strong);
  backdrop-filter: blur(22px);
  box-shadow: var(--shadow);
}
.panel::before {
  content: ""; position: absolute; inset: -1px; border-radius: inherit; padding: 1px;
  background: linear-gradient(150deg, rgba(34, 211, 238, .5), transparent 42%, rgba(168, 85, 247, .42));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude;
  pointer-events: none;
}
.panel__head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 20px; }
.panel__title { display: flex; align-items: center; gap: 9px; font-size: 14.5px; font-weight: 600; }
.live-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--cyan);
  box-shadow: 0 0 10px var(--cyan); animation: pulse 1.8s infinite; }
.panel__tag {
  font-family: var(--mono); font-size: 10px; letter-spacing: .16em;
  padding: 3px 9px; border-radius: 6px;
  background: rgba(34, 211, 238, .12); color: var(--cyan);
  border: 1px solid rgba(34, 211, 238, .3);
}

.panel__hero { display: grid; grid-template-columns: 152px 1fr; gap: 18px; align-items: center; }
.gauge { position: relative; width: 152px; height: 152px; }
.gauge svg { width: 100%; height: 100%; transform: rotate(-90deg); }
.gauge circle { fill: none; stroke-width: 9; stroke-linecap: round; }
.gauge__bg { stroke: var(--tint-strong); }
.gauge__val {
  stroke: #22d3ee;
  stroke-dasharray: 364; stroke-dashoffset: 364;
  filter: drop-shadow(0 0 8px rgba(34, 211, 238, .7));
  transition: stroke-dashoffset 1.8s var(--ease);
}
.gauge__label {
  position: absolute; inset: 0; display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 2px;
}
.gauge__label strong { font-family: var(--mono); font-size: 30px; font-weight: 700; letter-spacing: -.02em; }
.gauge__label span { display: none; }
.gauge__label small { font-size: 10.5px; color: var(--muted); letter-spacing: .04em; }

.panel__stats { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.mini {
  padding: 11px 13px; border-radius: 12px;
  background: var(--surface); border: 1px solid var(--line);
}
.mini small { display: block; font-size: 11.5px; color: var(--muted); margin-bottom: 3px; }
.mini strong { font-family: var(--mono); font-size: 15px; font-weight: 600; color: var(--text); }

.panel__chart { margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--line); }
.spark { height: 76px; }
.spark svg { width: 100%; height: 100%; }
.spark__line { stroke-dasharray: 900; stroke-dashoffset: 900; animation: draw 2.4s var(--ease) 1.1s forwards; }
@keyframes draw { to { stroke-dashoffset: 0; } }
.spark__area { opacity: 0; animation: fadeIn 1.2s var(--ease) 2s forwards; }
@keyframes fadeIn { to { opacity: 1; } }
.panel__legend {
  display: flex; justify-content: space-between; align-items: center;
  font-size: 12px; color: var(--muted); margin-top: 6px;
}
.panel__legend .up { color: #34d399; font-family: var(--mono); font-size: 12px; }

/* --- 指标条 --- */
.metrics {
  position: relative; z-index: 3;
  margin-top: 84px; padding: 28px 8px;
  display: grid; grid-template-columns: repeat(5, 1fr);
  border-radius: var(--r-lg);
  background: linear-gradient(180deg, var(--tint), var(--tint-weak));
  border: 1px solid var(--line);
  backdrop-filter: blur(14px);
}
.metric { text-align: center; padding: 6px 10px; position: relative; }
.metric + .metric::before {
  content: ""; position: absolute; left: 0; top: 16%; bottom: 16%;
  width: 1px; background: var(--line);
}
.metric strong {
  display: block; font-family: var(--mono);
  font-size: clamp(1.6rem, 2.6vw, 2.2rem); font-weight: 700; letter-spacing: -.03em;
  background: var(--grad); -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.metric strong em { font-style: normal; font-size: .5em; margin-left: 3px; letter-spacing: 0; }
.metric span { display: block; font-size: 13.5px; color: var(--muted); margin-top: 4px; }

/* ==========================================================================
   Logos
   ========================================================================== */
.logos { padding: 56px 0 40px; border-bottom: 1px solid var(--line); }
.logos__label { text-align: center; font-size: 13.5px; color: var(--muted); margin-bottom: 26px; }
.logos__row {
  display: flex; flex-wrap: wrap; justify-content: center; gap: 14px 16px;
}
/* 静态兜底：后台数据加载前的纯文字样式 */
.logos__row > span {
  font-size: 17px; font-weight: 700; letter-spacing: .06em;
  color: rgba(233, 238, 249, .32);
  transition: color .3s var(--ease);
}
.logos__row > span:hover { color: rgba(233, 238, 249, .8); }
/* 后台渲染的合作伙伴卡片：企业标识 + 名称 + 简介 */
.logos__item {
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 7px; min-width: 150px; max-width: 220px;
  padding: 16px 20px;
  border: 1px solid var(--line); border-radius: var(--r-md, 12px);
  background: rgba(255, 255, 255, .02);
  transition: border-color .3s var(--ease), background .3s var(--ease);
}
.logos__item:hover { border-color: rgba(34, 211, 238, .35); background: rgba(34, 211, 238, .05); }
.logos__logo {
  max-height: 40px; max-width: 140px; object-fit: contain;
}
.logos__item:hover .logos__logo { transform: scale(1.04); }
.logos__name {
  font-size: 15.5px; font-weight: 700; letter-spacing: .06em;
  color: rgba(233, 238, 249, .55); white-space: nowrap;
  transition: color .3s var(--ease);
}
.logos__item:hover .logos__name { color: rgba(233, 238, 249, .92); }
.logos__intro {
  margin: 0; font-size: 12px; line-height: 1.5; color: var(--muted);
  text-align: center;
}

/* ==========================================================================
   Section shell
   ========================================================================== */
.section { padding: 108px 0; position: relative; }
.section--alt { background: var(--bg-alt); }
.section--alt::before, .section--alt::after {
  content: ""; position: absolute; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, var(--line-strong), transparent);
}
.section--alt::before { top: 0; }
.section--alt::after { bottom: 0; }

.sec-head { max-width: 760px; margin: 0 auto 60px; text-align: center; }
.sec-head--row {
  max-width: none; display: flex; align-items: flex-end; justify-content: space-between;
  text-align: left; gap: 24px;
}
.sec-head__eyebrow {
  display: inline-block; font-family: var(--mono);
  font-size: 11px; font-weight: 600; letter-spacing: .26em;
  color: var(--cyan); margin-bottom: 14px;
}
.sec-head__title { font-size: clamp(1.75rem, 3.1vw, 2.6rem); letter-spacing: -.028em; }
.sec-head__desc { margin-top: 18px; font-size: 16px; color: var(--text-2); }

/* ==========================================================================
   Cards
   ========================================================================== */
.cards { display: grid; gap: 22px; }
.cards--3 { grid-template-columns: repeat(3, 1fr); }

.card {
  position: relative; padding: 30px 28px 28px;
  border-radius: var(--r-lg);
  background: linear-gradient(168deg, var(--tint), var(--tint-weak));
  border: 1px solid var(--line);
  overflow: hidden;
  transition: transform .42s var(--ease), border-color .42s var(--ease), box-shadow .42s var(--ease);
}
.card::after {
  content: ""; position: absolute; inset: 0; border-radius: inherit; opacity: 0;
  background: radial-gradient(420px circle at 50% 0%, rgba(34, 211, 238, .12), transparent 62%);
  transition: opacity .45s var(--ease); pointer-events: none;
}
.card:hover {
  transform: translateY(-7px);
  border-color: rgba(34, 211, 238, .3);
  box-shadow: 0 30px 60px -30px rgba(34, 211, 238, .35);
}
.card:hover::after { opacity: 1; }
.card h3 { font-size: 19.5px; margin-bottom: 11px; }
.card > p { font-size: 14.6px; color: var(--text-2); min-height: 4.6em; }
.card--feature { border-color: rgba(34, 211, 238, .26); background: linear-gradient(168deg, rgba(34, 211, 238, .095), rgba(168, 85, 247, .045)); }

.card__ico {
  width: 50px; height: 50px; border-radius: 14px; margin-bottom: 20px;
  display: grid; place-items: center;
  background: var(--surface-2); border: 1px solid var(--line-strong);
}
.card__ico .ico, .card__ico svg { width: 24px; height: 24px; fill: none; stroke-width: 1.7;
  stroke-linecap: round; stroke-linejoin: round; }
.ico--cyan   { background: rgba(34, 211, 238, .12);  border-color: rgba(34, 211, 238, .3);  color: var(--cyan); }
.ico--violet { background: rgba(168, 85, 247, .12);  border-color: rgba(168, 85, 247, .3);  color: var(--violet); }
.ico--blue   { background: rgba(59, 130, 246, .12);  border-color: rgba(59, 130, 246, .3);  color: #60a5fa; }
.ico--teal   { background: rgba(45, 212, 191, .12);  border-color: rgba(45, 212, 191, .3);  color: var(--teal); }
.ico--amber  { background: rgba(245, 158, 11, .12);  border-color: rgba(245, 158, 11, .3);  color: #fbbf24; }
.ico--pink   { background: rgba(236, 72, 153, .12);  border-color: rgba(236, 72, 153, .3);  color: #f472b6; }

.ticks { display: grid; gap: 9px; margin: 20px 0 0; }
.ticks li {
  position: relative; padding-left: 26px;
  font-size: 13.8px; color: var(--text-2);
}
.ticks li::before {
  content: ""; position: absolute; left: 0; top: .52em;
  width: 15px; height: 15px; border-radius: 50%;
  background: rgba(34, 211, 238, .14) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%2322d3ee' stroke-width='3.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M20 6L9 17l-5-5'/%3E%3C/svg%3E") center / 9px no-repeat;
}
.ticks--lg li { font-size: 15px; padding-left: 30px; }
.ticks--lg li::before { width: 18px; height: 18px; background-size: 11px; }
.ticks b { color: var(--text); font-weight: 700; }
.card .link-arrow { margin-top: 24px; }

/* ==========================================================================
   Tabs / Solutions
   ========================================================================== */
.tabs__nav {
  display: flex; flex-wrap: wrap; gap: 8px; justify-content: center;
  padding: 6px; margin: 0 auto 40px; width: fit-content; max-width: 100%;
  border-radius: 999px; background: var(--surface); border: 1px solid var(--line);
}
.tabs__btn {
  padding: 10px 22px; border: 0; border-radius: 999px; cursor: pointer;
  background: transparent; color: var(--text-2); font-size: 14.5px; font-weight: 600;
  transition: color .28s, background-color .28s, box-shadow .28s;
}
.tabs__btn:hover { color: var(--text); }
.tabs__btn.is-active {
  color: var(--on-grad); background: var(--grad);
  box-shadow: 0 8px 24px -10px rgba(99, 102, 241, .95);
}

.tabs__body { position: relative; }
.tabpane {
  display: none;
  grid-template-columns: 1.25fr .75fr; gap: 40px; align-items: center;
  padding: 40px; border-radius: var(--r-xl);
  background: linear-gradient(150deg, var(--tint), var(--tint-weak));
  border: 1px solid var(--line);
}
.tabpane.is-active { display: grid; animation: paneIn .5s var(--ease); }
@keyframes paneIn { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: none; } }
.tabpane__text h3 { font-size: clamp(1.25rem, 2.2vw, 1.65rem); margin-bottom: 16px; }
.tabpane__text > p { font-size: 15.5px; color: var(--text-2); }
.tabpane__text .btn { margin-top: 28px; }

.statgrid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.statgrid > div {
  padding: 20px 18px; border-radius: var(--r);
  background: var(--surface); border: 1px solid var(--line);
  transition: border-color .3s, background-color .3s, transform .3s var(--ease);
}
.statgrid > div:hover { border-color: rgba(34, 211, 238, .35); transform: translateY(-4px); }
.statgrid strong {
  display: block; font-family: var(--mono); font-size: clamp(1.3rem, 2.2vw, 1.8rem);
  letter-spacing: -.03em;
  background: var(--grad); -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.statgrid span { display: block; font-size: 12.8px; color: var(--muted); margin-top: 4px; }

/* ==========================================================================
   Tech
   ========================================================================== */
.tech { display: grid; grid-template-columns: 1fr 1fr; gap: 64px; align-items: start; }
.tech__copy .sec-head__title { margin-bottom: 18px; }
.tech__list { display: grid; gap: 8px; margin-top: 36px; }
.tech__item {
  display: flex; gap: 18px; padding: 20px 18px; border-radius: var(--r);
  border: 1px solid transparent;
  transition: background-color .3s, border-color .3s, transform .3s var(--ease);
}
.tech__item:hover { background: var(--surface); border-color: var(--line); transform: translateX(5px); }
.tech__num {
  font-family: var(--mono); font-size: 12px; font-weight: 700; letter-spacing: .1em;
  color: var(--cyan); padding-top: 3px; flex: none;
}
.tech__item h4 { font-size: 16.5px; margin-bottom: 6px; }
.tech__item p { font-size: 14.2px; color: var(--text-2); }

.barchart {
  padding: 28px 26px; border-radius: var(--r-xl);
  background: linear-gradient(160deg, var(--tint), var(--tint-weak));
  border: 1px solid var(--line-strong);
  box-shadow: var(--shadow);
  position: sticky; top: 100px;
}
.barchart__head { display: flex; align-items: baseline; justify-content: space-between; gap: 16px; margin-bottom: 26px; }
.barchart__head h4 { font-size: 16px; }
.barchart__legend { display: flex; align-items: center; gap: 7px; font-size: 11.5px; color: var(--muted); white-space: nowrap; }
.dot { width: 8px; height: 8px; border-radius: 3px; display: inline-block; }
.dot--us { background: var(--grad); }
.dot--them { background: var(--tint-line); margin-left: 10px; }

.bar-row { margin-bottom: 20px; }
.bar-row__label { display: block; font-size: 13px; color: var(--text-2); margin-bottom: 8px; }
.bar-row__bars { display: grid; gap: 6px; }
.bar {
  position: relative; height: 22px; border-radius: 7px;
  background: var(--tint);
  display: flex; align-items: center; padding: 0 9px;
  overflow: hidden;
}
.bar i {
  position: absolute; left: 0; top: 0; bottom: 0;
  width: 0; border-radius: 7px;
  transition: width 1.5s var(--ease);
}
.bar--us i   { background: var(--grad); box-shadow: 0 0 18px -2px rgba(99, 102, 241, .75); }
.bar--them i { background: var(--tint-line); }
.bar b {
  position: relative; margin-left: auto;
  font-family: var(--mono); font-size: 11.5px; font-weight: 700;
}
.bar--us b { color: #fff; text-shadow: 0 1px 6px rgba(0, 0, 0, .6); }
.bar--them b { color: var(--text-2); }
.barchart.is-visible .bar i { width: var(--w); }

/* ==========================================================================
   Network nodes
   ========================================================================== */
.nodes { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.node {
  padding: 22px; border-radius: var(--r);
  background: linear-gradient(165deg, var(--tint), var(--tint-weak));
  border: 1px solid var(--line);
  transition: transform .38s var(--ease), border-color .38s, box-shadow .38s;
}
.node:hover { transform: translateY(-6px); border-color: rgba(34, 211, 238, .32); box-shadow: 0 24px 48px -28px rgba(34, 211, 238, .5); }
.node header { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 10px; }
.node h4 { font-size: 15.5px; }
.node p { font-size: 13.5px; color: var(--text-2); }
.node p b { font-family: var(--mono); color: var(--text); font-size: 15px; }
.node__bar {
  height: 5px; border-radius: 999px; background: var(--tint-strong);
  margin: 14px 0 8px; overflow: hidden;
}
.node__bar i {
  display: block; height: 100%; width: 0; border-radius: 999px;
  background: var(--grad);
  transition: width 1.4s var(--ease);
}
.node.is-visible .node__bar i { width: var(--w); }
.node small { font-size: 11.8px; color: var(--muted); font-family: var(--mono); }

.tag {
  font-size: 11px; padding: 3px 9px; border-radius: 999px; font-weight: 600; white-space: nowrap;
  border: 1px solid transparent;
}
.tag--live  { background: rgba(52, 211, 153, .12); color: #34d399; border-color: rgba(52, 211, 153, .3); }
.tag--build { background: rgba(245, 158, 11, .12); color: #fbbf24; border-color: rgba(245, 158, 11, .3); }
.tag--new   { background: rgba(34, 211, 238, .12); color: var(--cyan); border-color: rgba(34, 211, 238, .3); }

/* ==========================================================================
   Cases
   ========================================================================== */
.cases { display: grid; grid-template-columns: repeat(2, 1fr); gap: 22px; }
.case {
  padding: 32px 30px; border-radius: var(--r-lg);
  background: linear-gradient(165deg, var(--tint), var(--tint-weak));
  border: 1px solid var(--line);
  display: flex; flex-direction: column; gap: 24px;
  transition: transform .42s var(--ease), border-color .42s, box-shadow .42s;
}
.case:hover { transform: translateY(-6px); border-color: rgba(168, 85, 247, .32); box-shadow: 0 30px 60px -32px rgba(168, 85, 247, .55); }
.case--wide {
  grid-column: 1 / -1;
  display: grid; grid-template-columns: 1.35fr .65fr; gap: 40px; align-items: center;
}
.quote-ico { width: 32px; height: 32px; fill: rgba(34, 211, 238, .3); stroke: none; margin-bottom: 16px; }
.case__quote p { font-size: 16px; line-height: 1.85; color: var(--text); }
.case--wide .case__quote p { font-size: 18px; }
.case__quote footer { display: flex; align-items: center; gap: 13px; margin-top: 22px; }
.avatar {
  width: 42px; height: 42px; flex: none; border-radius: 50%;
  display: grid; place-items: center; font-weight: 700; font-size: 16px; color: var(--on-grad);
  background: linear-gradient(140deg, #22d3ee, #6366f1);
}
.avatar--b { background: linear-gradient(140deg, #a855f7, #ec4899); }
.avatar--c { background: linear-gradient(140deg, #2dd4bf, #22d3ee); }
.case__quote strong { display: block; font-size: 14.5px; }
.case__quote small { font-size: 12.8px; color: var(--muted); }

.case__stats { display: grid; gap: 12px; }
.case__stats--row { grid-template-columns: 1fr 1fr; }
.case__stats > div {
  padding: 16px 18px; border-radius: var(--r-sm);
  background: var(--surface); border: 1px solid var(--line);
}
.case__stats strong {
  display: block; font-family: var(--mono); font-size: 1.5rem; letter-spacing: -.03em;
  background: var(--grad); -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.case__stats span { display: block; font-size: 12.5px; color: var(--muted); margin-top: 2px; }

/* ==========================================================================
   Pricing
   ========================================================================== */
.plans { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; align-items: stretch; }
.plan {
  position: relative; padding: 34px 30px 30px; border-radius: var(--r-lg);
  background: linear-gradient(168deg, var(--tint), var(--tint-weak));
  border: 1px solid var(--line);
  display: flex; flex-direction: column;
  transition: transform .4s var(--ease), border-color .4s, box-shadow .4s;
}
.plan:hover { transform: translateY(-6px); border-color: var(--line-strong); }
.plan--hot {
  border-color: rgba(34, 211, 238, .38);
  background: linear-gradient(168deg, rgba(34, 211, 238, .1), rgba(168, 85, 247, .05));
  box-shadow: 0 30px 70px -34px rgba(34, 211, 238, .6);
  transform: translateY(-8px);
}
.plan--hot:hover { transform: translateY(-14px); }
.plan__ribbon {
  position: absolute; top: -13px; left: 50%; transform: translateX(-50%);
  padding: 5px 16px; border-radius: 999px;
  background: var(--grad); color: var(--on-grad);
  font-size: 11.5px; font-weight: 800; letter-spacing: .06em; white-space: nowrap;
  box-shadow: 0 10px 24px -10px rgba(99, 102, 241, .95);
}
.plan h3 { font-size: 20px; }
.plan__desc { font-size: 13.8px; color: var(--muted); margin-top: 8px; }
.plan__price {
  display: flex; align-items: baseline; gap: 5px;
  margin: 22px 0 6px; padding-bottom: 22px; border-bottom: 1px solid var(--line);
}
.plan__price em { font-style: normal; font-size: 20px; font-weight: 600; color: var(--text-2); }
.plan__price strong {
  font-family: var(--mono); font-size: 2.8rem; font-weight: 700; letter-spacing: -.04em;
  background: var(--grad); -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.plan__price span { font-size: 13px; color: var(--muted); }
.plan .ticks { flex: 1; }
.plan .btn { margin-top: 28px; }

/* ==========================================================================
   News
   ========================================================================== */
.news { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.news__item {
  padding: 26px 24px; border-radius: var(--r-lg);
  background: var(--surface); border: 1px solid var(--line);
  transition: transform .38s var(--ease), border-color .38s, background-color .38s;
}
.news__item:hover { transform: translateY(-6px); border-color: rgba(34, 211, 238, .3); background: var(--surface-2); }
.news__item time { font-family: var(--mono); font-size: 11.5px; letter-spacing: .12em; color: var(--cyan); }
.news__item h3 { font-size: 17px; margin: 14px 0 12px; line-height: 1.5; }
.news__item p { font-size: 14px; color: var(--text-2); }
.news__item .link-arrow { margin-top: 20px; }

/* ==========================================================================
   CTA
   ========================================================================== */
.cta { padding: 40px 0 110px; }
.cta__box {
  position: relative; overflow: hidden;
  display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center;
  padding: 58px 56px; border-radius: 32px;
  background: linear-gradient(145deg, rgba(34, 211, 238, .13), rgba(99, 102, 241, .1) 45%, rgba(168, 85, 247, .13));
  border: 1px solid var(--line-strong);
  box-shadow: var(--shadow);
}
.cta__glow {
  position: absolute; width: 620px; height: 620px; right: -220px; top: -280px; border-radius: 50%;
  background: radial-gradient(circle, rgba(168, 85, 247, .35), transparent 66%);
  filter: blur(70px); pointer-events: none;
}
.cta__copy { position: relative; z-index: 2; }
.cta__copy h2 { font-size: clamp(1.6rem, 2.9vw, 2.3rem); letter-spacing: -.028em; }
.cta__copy p { margin-top: 18px; font-size: 15.5px; color: var(--text-2); max-width: 460px; }
.hero__badges--cta { margin-top: 26px; gap: 14px 22px; }
.hero__badges--cta li { color: var(--text-2); }

.cta__form {
  position: relative; z-index: 2;
  padding: 28px; border-radius: var(--r-lg);
  background: rgba(6, 9, 18, .55);
  border: 1px solid var(--line-strong);
  backdrop-filter: blur(18px);
  display: grid; gap: 14px;
}
.field { display: grid; gap: 7px; }
.field label { font-size: 12.8px; color: var(--text-2); font-weight: 600; }
.field input, .field select {
  width: 100%; padding: 12px 15px;
  border-radius: 11px; border: 1px solid var(--line-strong);
  background: var(--tint); color: var(--text);
  font-size: 14.5px; outline: none;
  transition: border-color .28s, background-color .28s, box-shadow .28s;
}
.field input::placeholder { color: rgba(127, 140, 166, .85); }
.field input:focus, .field select:focus {
  border-color: rgba(34, 211, 238, .65);
  background: rgba(34, 211, 238, .06);
  box-shadow: 0 0 0 3px rgba(34, 211, 238, .14);
}
.field select option { background: var(--bg-alt); color: var(--text); }
.field.is-error input, .field.is-error select { border-color: rgba(248, 113, 113, .8); }
.cta__form .btn { margin-top: 6px; }
.cta__note { font-size: 11.8px; color: var(--muted); text-align: center; line-height: 1.6; }

/* 第三方接入：短信验证码 / 人机验证（仅在后台开启对应能力时由脚本插入） */
.cm-smscode__row { display: flex; gap: 10px; align-items: stretch; }
.cm-smscode__row input { flex: 1 1 auto; min-width: 0; }
.cm-smscode__row .btn { flex: 0 0 auto; white-space: nowrap; }
.cm-smscode__hint { font-size: 11.8px; color: var(--muted); line-height: 1.6; }
.cm-smscode__hint.is-error { color: rgba(248, 113, 113, .95); }
.cm-captcha { display: grid; gap: 8px; }
.cm-captcha__label { font-size: 12.8px; color: var(--text-2); font-weight: 600; }
.cm-captcha__slot { min-height: 44px; }
.cm-captcha__btn {
  padding: 11px 18px; border-radius: 11px; cursor: pointer;
  border: 1px dashed var(--line-strong); background: var(--tint); color: var(--text-2);
  font-size: 13.5px; transition: border-color .28s, color .28s, background-color .28s;
}
.cm-captcha__btn:hover { border-color: rgba(34, 211, 238, .55); color: var(--text); }
.cm-captcha__btn.is-verified {
  border-style: solid; border-color: rgba(52, 211, 153, .6);
  background: rgba(52, 211, 153, .1); color: #6ee7b7;
}
.cm-captcha__tip { font-size: 11.8px; color: var(--muted); margin-left: 10px; }
.cm-captcha.is-verified .cm-captcha__tip { color: #6ee7b7; }
@media (max-width: 480px) {
  .cm-smscode__row { flex-wrap: wrap; }
  .cm-smscode__row .btn { width: 100%; }
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer { background: var(--footer-bg); border-top: 1px solid var(--line); padding: 72px 0 36px; }
.footer__top { display: flex; justify-content: space-between; align-items: flex-start; gap: 56px; }
.footer__brand > p { margin-top: 20px; font-size: 14.5px; color: var(--text-2); max-width: 320px; }
.footer__brand > .footer__hotline {
  margin-top: 14px; max-width: none; display: flex; align-items: center; flex-wrap: wrap;
  gap: 6px 22px; font-size: 14px; color: var(--text-2); font-variant-numeric: tabular-nums;
}
.footer__hotline span { position: relative; }
.footer__hotline span[hidden] { display: none !important; }
.footer__hotline[hidden] { display: none !important; }
.footer__hotline span + span::before {
  content: ""; position: absolute; left: -11px; top: 50%; transform: translateY(-50%);
  width: 1px; height: 12px; background: var(--line);
}
/* 公司地址：跟在联系方式下方单独一行（字号 / 颜色与联系方式行完全一致） */
.footer__brand > .footer__address { margin-top: 10px; max-width: none; font-size: 14px; color: var(--text-2); }
.footer__address[hidden] { display: none !important; }
.footer__cols { display: grid; grid-template-columns: repeat(4, 1fr); gap: 32px; }
.footer__cols h5 { font-size: 13.5px; letter-spacing: .06em; margin-bottom: 18px; color: var(--text); }
.footer__cols a { display: block; font-size: 13.8px; color: var(--muted); padding: 5px 0;
  transition: color .25s, transform .25s var(--ease); }
.footer__cols a:hover { color: var(--cyan); transform: translateX(4px); }

.footer__bottom {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 14px 22px;
  margin-top: 56px; padding-top: 26px; border-top: 1px solid var(--line);
  font-size: 13px; color: var(--muted);
}
/* 版权 / ICP 备案 / 公安备案 / 增值电信业务经营许可证 / 管理后台：space-between 均分 */
.footer__bottom > a, .footer__bottom > .footer__license { white-space: nowrap; font-variant-numeric: tabular-nums; }
.footer__bottom > a:hover { color: var(--cyan); }
.footer__bottom [hidden] { display: none !important; }
.footer__disclaimer { margin-top: 16px; font-size: 12px; color: rgba(127, 140, 166, .7); }

/* ==========================================================================
   Back to top + Toast
   ========================================================================== */
.totop {
  position: fixed; right: 26px; bottom: 26px; z-index: 80;
  width: 46px; height: 46px; border-radius: 50%;
  display: grid; place-items: center;
  background: var(--surface-2); border: 1px solid var(--line-strong);
  backdrop-filter: blur(14px);
  opacity: 0; visibility: hidden; transform: translateY(14px);
  transition: opacity .34s var(--ease), transform .34s var(--ease), visibility .34s, border-color .3s;
}
.totop svg { width: 19px; height: 19px; fill: none; stroke: var(--text); stroke-width: 2;
  stroke-linecap: round; stroke-linejoin: round; }
.totop.is-visible { opacity: 1; visibility: visible; transform: none; }
.totop:hover { border-color: rgba(34, 211, 238, .6); box-shadow: 0 12px 30px -12px rgba(34, 211, 238, .8); }

.toast {
  position: fixed; left: 50%; bottom: 40px; z-index: 200;
  transform: translate(-50%, 24px);
  padding: 14px 24px; border-radius: 999px;
  background: rgba(8, 12, 23, .94);
  border: 1px solid rgba(34, 211, 238, .45);
  box-shadow: 0 20px 50px -18px rgba(0, 0, 0, .9);
  backdrop-filter: blur(14px);
  font-size: 14.5px; color: var(--text); white-space: nowrap;
  opacity: 0; visibility: hidden; pointer-events: none;
  transition: opacity .34s var(--ease), transform .34s var(--ease), visibility .34s;
  max-width: calc(100% - 40px); overflow: hidden; text-overflow: ellipsis;
}
.toast.is-visible { opacity: 1; visibility: visible; transform: translate(-50%, 0); }

/* ==========================================================================
   Reveal animation
   ========================================================================== */
[data-reveal] {
  opacity: 0; transform: translateY(24px);
  transition: opacity .8s var(--ease), transform .8s var(--ease);
  transition-delay: var(--reveal-delay, 0ms);
}
[data-reveal].is-visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important; animation-iteration-count: 1 !important;
    transition-duration: .01ms !important; scroll-behavior: auto !important;
  }
  [data-reveal] { opacity: 1; transform: none; }
}

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 1080px) {
  .hero__inner { grid-template-columns: 1fr; gap: 52px; }
  .panel { max-width: 560px; }
  .metrics { grid-template-columns: repeat(3, 1fr); row-gap: 22px; }
  .metric:nth-child(4)::before { display: none; }
  .cards--3 { grid-template-columns: repeat(2, 1fr); }
  .nodes { grid-template-columns: repeat(2, 1fr); }
  .tech { grid-template-columns: 1fr; gap: 44px; }
  .barchart { position: static; }
  .footer__top { flex-direction: column; gap: 30px; }
}

@media (max-width: 900px) {
  .nav__menu {
    position: fixed; inset: 72px 0 auto 0;
    flex-direction: column; align-items: stretch; gap: 4px;
    padding: 18px 24px 26px;
    background: var(--nav-bg-solid);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--line);
    transform: translateY(-14px); opacity: 0; visibility: hidden;
    transition: opacity .3s var(--ease), transform .3s var(--ease), visibility .3s;
  }
  .nav__menu.is-open { opacity: 1; visibility: visible; transform: none; }
  .nav__link { padding: 13px 14px; font-size: 15.5px; }
  .nav__link--mobile { display: block; color: var(--cyan); font-weight: 600; }
  .nav__toggle { display: flex; }
  .nav__actions .btn--ghost { display: none; }

  .tabpane, .tabpane.is-active { grid-template-columns: 1fr; gap: 30px; padding: 30px 26px; }
  .case--wide { grid-template-columns: 1fr; gap: 28px; }
  .cases { grid-template-columns: 1fr; }
  .plans { grid-template-columns: 1fr; }
  .plan--hot { transform: none; }
  .plan--hot:hover { transform: translateY(-6px); }
  .news { grid-template-columns: 1fr; }
  .cta__box { grid-template-columns: 1fr; gap: 38px; padding: 40px 26px; }
  .footer__cols { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 640px) {
  .container, .nav__inner { width: calc(100% - 36px); }
  .section { padding: 76px 0; }
  .hero { padding: 108px 0 72px; }
  .metrics { grid-template-columns: repeat(2, 1fr); margin-top: 60px; padding: 22px 4px; }
  .metric::before { display: none !important; }
  .cards--3 { grid-template-columns: 1fr; }
  .card > p { min-height: 0; }
  .nodes { grid-template-columns: 1fr; }
  .sec-head { margin-bottom: 42px; }
  .sec-head--row { flex-direction: column; align-items: flex-start; }
  .panel__hero { grid-template-columns: 1fr; justify-items: center; text-align: center; }
  .panel__stats { width: 100%; }
  .tabs__nav { width: 100%; border-radius: var(--r); justify-content: flex-start; overflow-x: auto;
    flex-wrap: nowrap; scrollbar-width: none; }
  .tabs__nav::-webkit-scrollbar { display: none; }
  .tabs__btn { padding: 9px 16px; font-size: 13.5px; flex: none; }
  .statgrid { grid-template-columns: 1fr 1fr; gap: 10px; }
  .cta__box { padding: 32px 20px; }
  .cta__form { padding: 22px 18px; }
  .hero__cta { flex-direction: column; align-items: stretch; }
  .hero__cta .btn { width: 100%; }
  .toast { bottom: 24px; font-size: 13.5px; }
  .totop { right: 16px; bottom: 16px; }
  .footer__hotline { gap: 8px 20px; }
  .footer__hotline span + span::before { display: none; }
  .footer__bottom { gap: 12px; font-size: 12.5px; }
}

/* ==========================================================================
   v2 新增：多页结构组件（页头横幅 / 广告位 / 时间线 / 联系卡 / 简版 CTA）
   ========================================================================== */

/* ---------- 页头横幅（子页面） ---------- */
.page-banner {
  position: relative; padding: 150px 0 66px; overflow: hidden;
  background: linear-gradient(180deg, rgba(34, 211, 238, .05), transparent 62%);
}
.page-banner__inner { position: relative; z-index: 2; text-align: center; }
.page-banner__title {
  font-size: clamp(2rem, 4.2vw, 3.1rem);
  letter-spacing: -.03em; font-weight: 800; line-height: 1.16;
  background: var(--grad);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.page-banner__desc { margin: 18px auto 0; font-size: 16.5px; color: var(--text-2); max-width: 660px; }
.page-banner .sec-head__eyebrow { margin-bottom: 16px; }

/* ---------- 首页广告位 ---------- */
.ads__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.ad-card {
  position: relative; display: flex; flex-direction: column;
  border-radius: var(--r-lg); overflow: hidden;
  background: linear-gradient(168deg, var(--tint), var(--tint-weak));
  border: 1px solid var(--line);
  transition: transform .42s var(--ease), border-color .42s var(--ease), box-shadow .42s var(--ease);
}
.ad-card:hover {
  transform: translateY(-7px);
  border-color: rgba(34, 211, 238, .32);
  box-shadow: 0 30px 60px -30px rgba(34, 211, 238, .4);
}
.ad-card__media {
  position: relative; aspect-ratio: 16 / 9; overflow: hidden;
  background: var(--tint);
}
.ad-card__media img {
  width: 100%; height: 100%; object-fit: cover; display: block;
  transition: transform .7s var(--ease);
}
.ad-card:hover .ad-card__media img { transform: scale(1.06); }
.ad-card__media--ph {
  display: grid; place-items: center;
  background: linear-gradient(140deg, rgba(34, 211, 238, .10), rgba(99, 102, 241, .10) 55%, rgba(168, 85, 247, .10));
}
/* 无封面占位不再展示「AD」字样与「广告」角标 */
.ad-card__media--ph .ad-card__ph { display: none; }
.ad-card__body {
  padding: 20px 22px 22px; display: flex; flex-direction: column; gap: 9px; flex: 1;
}
.ad-card__body h3 { font-size: 18px; }
.ad-card__body p { font-size: 14px; color: var(--text-2); flex: 1; }
.ad-card__body .link-arrow { margin-top: 4px; }
.ads__note { margin-top: 20px; font-size: 12.8px; color: var(--muted); text-align: center; }
.ads__grid.is-filled .ad-card { animation: paneIn .55s var(--ease) backwards; }
.ads__grid.is-filled .ad-card:nth-child(2) { animation-delay: .08s; }
.ads__grid.is-filled .ad-card:nth-child(3) { animation-delay: .16s; }
.ads__grid.is-filled .ad-card:nth-child(4) { animation-delay: .24s; }
.ads__grid.is-filled .ad-card:nth-child(5) { animation-delay: .32s; }
.ads__grid.is-filled .ad-card:nth-child(6) { animation-delay: .4s; }

/* ---------- 查看更多按钮区 ---------- */
.sec-more { margin-top: 42px; text-align: center; }

/* ---------- 公司简介 ---------- */
.about-intro { display: grid; grid-template-columns: 1.08fr .92fr; gap: 56px; align-items: center; }
.about-intro__text { margin-top: 18px; font-size: 15.5px; color: var(--text-2); }
.about-intro__copy .sec-head__title { margin-bottom: 4px; }
.about-intro__copy .hero__badges { margin-top: 26px; gap: 14px 22px; }
.about-intro__stats .statgrid { grid-template-columns: 1fr 1fr; gap: 14px; }

/* ---------- 发展历程时间线 ---------- */
.timeline { position: relative; max-width: 780px; margin: 0 auto; }
.timeline::before {
  content: ""; position: absolute; left: 11px; top: 8px; bottom: 8px; width: 2px;
  background: linear-gradient(180deg, rgba(34, 211, 238, .65), rgba(168, 85, 247, .5));
}
.timeline__item { position: relative; padding: 0 0 36px 50px; }
.timeline__item:last-child { padding-bottom: 0; }
.timeline__dot {
  position: absolute; left: 0; top: 3px; width: 24px; height: 24px; border-radius: 50%;
  background: var(--bg); border: 2px solid rgba(34, 211, 238, .6);
  box-shadow: 0 0 0 5px rgba(34, 211, 238, .08);
}
.timeline__dot::after {
  content: ""; position: absolute; inset: 6px; border-radius: 50%; background: var(--grad);
}
.timeline__year {
  font-family: var(--mono); font-size: 12.5px; font-weight: 700;
  letter-spacing: .14em; color: var(--cyan);
}
.timeline__item h4 { font-size: 17.5px; margin: 7px 0 8px; }
.timeline__item p { font-size: 14.5px; color: var(--text-2); }

/* ---------- 联系卡 ---------- */
.contact-cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.contact-card {
  padding: 32px 26px; border-radius: var(--r-lg); text-align: center;
  background: linear-gradient(168deg, var(--tint), var(--tint-weak));
  border: 1px solid var(--line);
  transition: transform .4s var(--ease), border-color .4s, box-shadow .4s;
}
.contact-card:hover {
  transform: translateY(-6px); border-color: rgba(34, 211, 238, .3);
  box-shadow: 0 26px 54px -30px rgba(34, 211, 238, .5);
}
.contact-card .card__ico { margin: 0 auto 18px; }
.contact-card h3 { font-size: 18px; margin-bottom: 10px; }
.contact-card p { font-size: 14.5px; color: var(--text-2); line-height: 1.9; }

/* ---------- 简版 CTA（子页面） ---------- */
.cta--compact { padding: 30px 0 100px; }
.cta__box--center { grid-template-columns: 1fr; text-align: center; padding: 50px 40px; }
.cta__box--center .cta__copy p { margin-inline: auto; }
.cta__box--center .btn { margin-top: 30px; }

/* ---------- 响应式补充 ---------- */
@media (max-width: 1080px) {
  .ads__grid { grid-template-columns: repeat(2, 1fr); }
  .about-intro { grid-template-columns: 1fr; gap: 40px; }
  .contact-cards { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 900px) {
  .contact-cards { grid-template-columns: 1fr; }
  .cta__box--center { padding: 40px 26px; }
}
@media (max-width: 640px) {
  .ads__grid { grid-template-columns: 1fr; }
  .page-banner { padding: 116px 0 48px; }
  .timeline__item { padding-left: 42px; }
  .about-intro__stats .statgrid { grid-template-columns: 1fr 1fr; gap: 10px; }
}

/* ---------- v2 修复：全局图片约束 / hidden 语义 ---------- */
img { max-width: 100%; height: auto; }
[hidden] { display: none !important; }


/* ============ 独立站点补充样式 ============ */
.sec-empty { opacity: .6; font-size: .95rem; }
.brand__logo { display: block; width: 100%; height: 100%; object-fit: contain; }
.site-notice {
  margin: 24px auto;
  max-width: 960px;
  padding: 12px 18px;
  border: 1px solid rgba(34, 211, 238, .35);
  border-radius: 10px;
  background: rgba(34, 211, 238, .08);
  font-size: .9rem;
  text-align: center;
}

/* 首屏媒体面板（默认内置动态图，后台可上传替换） */
.panel--media { padding: 0; overflow: hidden; }
.panel__img,
.panel__video {
  display: block; width: 100%; height: 100%;
  min-height: 320px; object-fit: cover;
  border-radius: inherit;
}
@media (max-width: 960px) {
  .panel__img, .panel__video { min-height: 260px; }
}