/* ==========================================================================
   TEMS Investigation — 宣传页样式
   深色科技风 / 单页 / 无外部依赖
   ========================================================================== */

:root {
  --bg: #05080f;
  --bg-2: #070c16;
  --surface: rgba(255, 255, 255, 0.035);
  --surface-2: rgba(255, 255, 255, 0.06);
  --line: rgba(255, 255, 255, 0.09);
  --line-strong: rgba(255, 255, 255, 0.16);

  --text: #eaf2fb;
  --text-dim: #9aa9bd;
  --text-mute: #6d7c91;

  --cyan: #22e0ff;
  --blue: #2f7dff;
  --violet: #8b6cff;
  --lime: #7dffb2;

  --grad: linear-gradient(100deg, var(--cyan) 0%, var(--blue) 52%, var(--violet) 100%);
  --radius: 18px;
  --radius-sm: 12px;
  --wrap: 1180px;
  --nav-h: 72px;

  --ease: cubic-bezier(.22, 1, .36, 1);
  --shadow: 0 30px 80px -30px rgba(0, 0, 0, .85);
}

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

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

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui,
    -apple-system, "Segoe UI", Roboto, Inter, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  letter-spacing: .01em;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

img, svg, canvas { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { margin: 0; padding: 0; list-style: none; }
h1, h2, h3 { margin: 0 0 .5em; line-height: 1.18; letter-spacing: -.02em; font-weight: 700; }
p { margin: 0 0 1em; }

::selection { background: rgba(34, 224, 255, .28); color: #fff; }

/* 滚动进度 ------------------------------------------------------------- */
.scroll-progress {
  position: fixed;
  inset: 0 auto auto 0;
  height: 2px;
  width: 0;
  background: var(--grad);
  z-index: 200;
  box-shadow: 0 0 18px rgba(34, 224, 255, .65);
  transition: width .08s linear;
}

/* ============================ 导航 ============================ */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 120;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  transition: background .35s var(--ease), border-color .35s var(--ease),
    backdrop-filter .35s var(--ease);
  border-bottom: 1px solid transparent;
}

.nav.is-stuck {
  background: rgba(5, 8, 15, .78);
  backdrop-filter: blur(16px) saturate(140%);
  border-bottom-color: var(--line);
}

.nav__inner {
  width: min(100% - 48px, var(--wrap));
  margin-inline: auto;
  display: flex;
  align-items: center;
  gap: 24px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  letter-spacing: -.03em;
  font-size: 18px;
  flex: 0 0 auto;
}

.brand__mark {
  width: 30px;
  height: 30px;
  color: var(--cyan);
  filter: drop-shadow(0 0 12px rgba(34, 224, 255, .55));
}

.brand__text { display: inline-flex; align-items: baseline; gap: 6px; }
.brand__accent {
  font-weight: 500;
  color: var(--text-dim);
  letter-spacing: -.01em;
}

.nav__links {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
}

.nav__links a {
  padding: 8px 12px;
  border-radius: 999px;
  color: var(--text-dim);
  transition: color .2s, background .2s;
  white-space: nowrap;
}

.nav__links a:hover { color: var(--text); background: rgba(255, 255, 255, .05); }

.nav__links a.nav__cta {
  margin-left: 6px;
  color: #04121c;
  background: var(--grad);
  font-weight: 700;
  padding: 9px 18px;
  box-shadow: 0 8px 26px -10px rgba(34, 224, 255, .75);
}

.nav__links a.nav__cta:hover { filter: brightness(1.08); }

.nav__toggle {
  margin-left: auto;
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(255, 255, 255, .04);
  cursor: pointer;
  padding: 11px 10px;
  gap: 5px;
  flex-direction: column;
  justify-content: center;
}

/* 语言切换 -------------------------------------------------------------- */
.lang {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  padding: 3px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, .04);
  flex: 0 0 auto;
}

.lang button {
  border: 0;
  background: transparent;
  color: var(--text-mute);
  font-family: inherit;
  font-size: 12px;
  line-height: 1.4;
  letter-spacing: .04em;
  padding: 4px 9px;
  border-radius: 999px;
  cursor: pointer;
  transition: color .2s, background .25s, font-weight .2s;
}

.lang button:hover { color: var(--text); }

.lang button.is-active {
  color: #04121c;
  background: var(--grad);
  font-weight: 700;
}

.nav__toggle span {
  display: block;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform .3s var(--ease), opacity .2s;
}

.nav__toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav__toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ============================ 通用 ============================ */
.wrap {
  width: min(100% - 48px, var(--wrap));
  margin-inline: auto;
}

.section {
  position: relative;
  padding: clamp(72px, 10vw, 132px) 0;
}

section[id] { scroll-margin-top: calc(var(--nav-h) + 8px); }

.section--alt {
  background:
    radial-gradient(1100px 460px at 80% -10%, rgba(47, 125, 255, .10), transparent 65%),
    var(--bg-2);
  border-block: 1px solid var(--line);
}

.section__head { max-width: 720px; margin-bottom: clamp(36px, 5vw, 64px); }
.section__head h2 { font-size: clamp(28px, 3.6vw, 46px); text-wrap: balance; }
.section__sub { color: var(--text-dim); font-size: clamp(15px, 1.2vw, 17px); margin: 0; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 12.5px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--cyan);
  font-weight: 600;
  margin: 0 0 16px;
}

.pulse {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 0 0 rgba(34, 224, 255, .65);
  animation: pulse 2.2s infinite;
}

@keyframes pulse {
  0% { box-shadow: 0 0 0 0 rgba(34, 224, 255, .6); }
  70% { box-shadow: 0 0 0 12px rgba(34, 224, 255, 0); }
  100% { box-shadow: 0 0 0 0 rgba(34, 224, 255, 0); }
}

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

/* 按钮 ---------------------------------------------------------------- */
.btn {
  --btn-pad: 14px 26px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: var(--btn-pad);
  border-radius: 999px;
  font-weight: 650;
  font-size: 15px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease),
    background .25s, border-color .25s, filter .25s;
  will-change: transform;
}

.btn svg { width: 16px; height: 16px; transition: transform .25s var(--ease); }
.btn:hover svg { transform: translateX(3px); }

.btn--primary {
  color: #04121c;
  background: var(--grad);
  box-shadow: 0 18px 44px -18px rgba(34, 224, 255, .8);
}

.btn--primary:hover {
  transform: translateY(-2px);
  filter: brightness(1.07);
  box-shadow: 0 22px 54px -18px rgba(34, 224, 255, .95);
}

.btn--ghost {
  color: var(--text);
  border-color: var(--line-strong);
  background: rgba(255, 255, 255, .03);
}

.btn--ghost:hover {
  transform: translateY(-2px);
  border-color: rgba(34, 224, 255, .5);
  background: rgba(34, 224, 255, .07);
}

.btn--block { width: 100%; }

/* ============================ HERO ============================ */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding: calc(var(--nav-h) + 44px) 0 64px;
  overflow: hidden;
  isolation: isolate;
  background:
    radial-gradient(1200px 600px at 50% -20%, rgba(47, 125, 255, .20), transparent 62%),
    radial-gradient(900px 520px at 100% 110%, rgba(139, 108, 255, .16), transparent 60%),
    var(--bg);
}

.hero__canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: .35;
  z-index: -4;
}

.hero__grid {
  position: absolute;
  inset: 0;
  z-index: -3;
  background-image:
    linear-gradient(to right, rgba(255, 255, 255, .05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, .05) 1px, transparent 1px);
  background-size: 62px 62px;
  mask-image: radial-gradient(ellipse 90% 70% at 50% 30%, #000 25%, transparent 78%);
  -webkit-mask-image: radial-gradient(ellipse 90% 70% at 50% 30%, #000 25%, transparent 78%);
  opacity: .55;
}

.hero__glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(90px);
  z-index: -2;
  pointer-events: none;
}

.hero__glow--a {
  width: 460px; height: 460px;
  top: -140px; right: 6%;
  background: rgba(34, 224, 255, .22);
  animation: drift 16s ease-in-out infinite alternate;
}

.hero__glow--b {
  width: 520px; height: 520px;
  bottom: -220px; left: -80px;
  background: rgba(139, 108, 255, .18);
  animation: drift 22s ease-in-out infinite alternate-reverse;
}

@keyframes drift {
  from { transform: translate3d(0, 0, 0) scale(1); }
  to   { transform: translate3d(-40px, 40px, 0) scale(1.12); }
}

.hero__inner {
  width: min(100% - 48px, var(--wrap));
  margin-inline: auto;
  display: grid;
  grid-template-columns: minmax(0, 720px) minmax(0, 1fr);
  gap: clamp(32px, 5vw, 72px);
  align-items: center;
}

.hero__copy { max-width: 720px; }

.hero__title {
  font-size: clamp(32px, 4.4vw, 57px);
  letter-spacing: -.035em;
  margin-bottom: 22px;
  text-wrap: balance;
}

.hero__title > span { display: block; }

.hero__lead {
  color: var(--text-dim);
  font-size: clamp(15px, 1.25vw, 18px);
  max-width: 56ch;
}

.hero__lead strong { color: var(--text); font-weight: 650; }

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin: 30px 0 44px;
}

.hero__stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  margin: 0;
  padding-top: 26px;
  border-top: 1px solid var(--line);
}

.stat dt {
  font-size: clamp(22px, 2.4vw, 30px);
  font-weight: 800;
  letter-spacing: -.03em;
  color: #fff;
}

.stat dd {
  margin: 2px 0 0;
  font-size: 12.5px;
  color: var(--text-mute);
  letter-spacing: .04em;
}

/* Hero 侧面板 --------------------------------------------------------- */
.hero__panel {
  position: relative;
  padding: 22px;
  border-radius: 22px;
  border: 1px solid var(--line);
  background: linear-gradient(170deg, rgba(255, 255, 255, .07), rgba(255, 255, 255, .015));
  backdrop-filter: blur(18px) saturate(150%);
  box-shadow: var(--shadow), inset 0 1px 0 rgba(255, 255, 255, .08);
  animation: floaty 7s ease-in-out infinite;
}

@keyframes floaty {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-10px); }
}

.panel__head {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 12px;
  letter-spacing: .06em;
  color: var(--text-dim);
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 18px;
}

.panel__chip {
  margin-left: auto;
  font-size: 11px;
  padding: 3px 9px;
  border-radius: 999px;
  color: var(--lime);
  background: rgba(125, 255, 178, .1);
  border: 1px solid rgba(125, 255, 178, .28);
}

.dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--text-mute);
}

.dot--live {
  background: var(--lime);
  box-shadow: 0 0 0 0 rgba(125, 255, 178, .7);
  animation: pulse 2s infinite;
}

.kpi { margin-bottom: 15px; }

.kpi__row {
  display: flex;
  justify-content: space-between;
  font-size: 12.5px;
  color: var(--text-dim);
  margin-bottom: 7px;
}

.kpi__val {
  color: #fff;
  font-variant-numeric: tabular-nums;
  font-weight: 600;
}

.kpi__bar {
  height: 5px;
  border-radius: 99px;
  background: rgba(255, 255, 255, .07);
  overflow: hidden;
}

.kpi__bar i {
  display: block;
  height: 100%;
  width: var(--w);
  border-radius: 99px;
  background: var(--grad);
  animation: grow 1.6s var(--ease) both;
}

@keyframes grow { from { width: 0; } }

.panel__foot {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  margin-top: 20px;
  padding-top: 14px;
  border-top: 1px solid var(--line);
  font-size: 11px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--text-mute);
}

.hero__scroll {
  position: absolute;
  left: 50%;
  bottom: 22px;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  font-size: 10.5px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--text-mute);
  z-index: 2;
}

.hero__scroll i {
  width: 1px;
  height: 42px;
  background: linear-gradient(to bottom, rgba(34, 224, 255, .9), transparent);
  animation: drop 2.4s ease-in-out infinite;
}

@keyframes drop {
  0%, 100% { transform: scaleY(.35); transform-origin: top; opacity: .3; }
  50%      { transform: scaleY(1); opacity: 1; }
}

/* ============================ 跑马灯 ============================ */
.marquee {
  overflow: hidden;
  border-block: 1px solid var(--line);
  background: rgba(255, 255, 255, .015);
  padding: 15px 0;
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}

.marquee__track {
  display: flex;
  gap: 26px;
  width: max-content;
  animation: scrollx 34s linear infinite;
  font-size: 13px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--text-mute);
  white-space: nowrap;
}

.marquee__track span:nth-child(even) { color: rgba(34, 224, 255, .55); }
.marquee:hover .marquee__track { animation-play-state: paused; }

@keyframes scrollx {
  to { transform: translateX(-50%); }
}

/* ============================ 卡片网格 ============================ */
.grid { display: grid; gap: 20px; }
.grid--3 { grid-template-columns: repeat(auto-fit, minmax(288px, 1fr)); }
.grid--4 { grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }

.card {
  position: relative;
  padding: 28px 26px 26px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: linear-gradient(165deg, rgba(255, 255, 255, .055), rgba(255, 255, 255, .012));
  overflow: hidden;
  transition: transform .4s var(--ease), border-color .4s, box-shadow .4s;
}

.card::before {
  /* 鼠标跟随光晕 */
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  background: radial-gradient(280px circle at var(--mx, 50%) var(--my, 0%), rgba(34, 224, 255, .16), transparent 62%);
  opacity: 0;
  transition: opacity .4s;
  pointer-events: none;
}

.card:hover {
  transform: translateY(-5px);
  border-color: rgba(34, 224, 255, .34);
  box-shadow: 0 32px 70px -40px rgba(34, 224, 255, .55);
}

.card:hover::before { opacity: 1; }

.card__icon {
  width: 46px;
  height: 46px;
  border-radius: 13px;
  display: grid;
  place-items: center;
  margin-bottom: 20px;
  color: var(--cyan);
  background: rgba(34, 224, 255, .09);
  border: 1px solid rgba(34, 224, 255, .22);
}

.card__icon svg { width: 24px; height: 24px; }

.card h3 { font-size: 18.5px; margin-bottom: 10px; }
.card p { color: var(--text-dim); font-size: 14.5px; margin-bottom: 16px; }

.card__list { display: grid; gap: 7px; }

.card__list li {
  position: relative;
  padding-left: 17px;
  font-size: 13px;
  color: var(--text-mute);
}

.card__list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .68em;
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--cyan);
  opacity: .8;
}

/* ============================ 场景 ============================ */
.usecases {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(420px, 1fr));
  gap: 20px;
}

.ucard {
  position: relative;
  padding: 30px 26px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background: linear-gradient(200deg, rgba(255, 255, 255, .05), rgba(255, 255, 255, .008));
  overflow: hidden;
  transition: transform .4s var(--ease), border-color .4s;
}

.ucard::after {
  content: "";
  position: absolute;
  inset: auto -30% -60% auto;
  width: 200px; height: 200px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(47, 125, 255, .35), transparent 68%);
  filter: blur(24px);
  opacity: .5;
  transition: opacity .4s, transform .5s var(--ease);
}

.ucard:hover { transform: translateY(-4px); border-color: var(--line-strong); }
.ucard:hover::after { opacity: 1; transform: translate(-10px, -10px); }

.ucard__no {
  display: block;
  font-size: 12px;
  letter-spacing: .22em;
  color: rgba(34, 224, 255, .75);
  margin-bottom: 12px;
  font-variant-numeric: tabular-nums;
}

.ucard h3 { font-size: 19px; margin-bottom: 10px; }
.ucard p { color: var(--text-dim); font-size: 14.5px; margin-bottom: 18px; }

.tags { display: flex; flex-wrap: wrap; gap: 8px; }

.tags span {
  font-size: 11.5px;
  letter-spacing: .05em;
  padding: 4px 10px;
  border-radius: 6px;
  color: var(--text-dim);
  background: rgba(255, 255, 255, .04);
  border: 1px solid var(--line);
}

/* ============================ 技术矩阵 ============================ */
.split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, .92fr);
  gap: clamp(32px, 6vw, 80px);
  align-items: center;
}

.split__copy h2 { font-size: clamp(28px, 3.4vw, 44px); }

.techlist {
  display: grid;
  gap: 0;
  margin-top: 30px;
  border-top: 1px solid var(--line);
}

.techlist li {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 18px;
  padding: 14px 2px;
  border-bottom: 1px solid var(--line);
  transition: padding-left .3s var(--ease), background .3s;
}

.techlist li:hover {
  padding-left: 12px;
  background: linear-gradient(90deg, rgba(34, 224, 255, .06), transparent 70%);
}

.techlist b {
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -.01em;
  flex: 0 0 auto;
}

.techlist span {
  font-size: 12.5px;
  color: var(--text-mute);
  text-align: right;
  letter-spacing: .03em;
}

/* 轨道视觉 ------------------------------------------------------------ */
.split__panel { display: grid; place-items: center; min-height: 420px; }

.orb {
  position: relative;
  width: min(100%, 400px);
  aspect-ratio: 1;
  display: grid;
  place-items: center;
}

.orb__ring {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(34, 224, 255, .22);
}

.orb__ring--1 {
  inset: 4%;
  animation: spin 26s linear infinite;
  border-style: dashed;
  border-color: rgba(34, 224, 255, .3);
}

.orb__ring--2 {
  inset: 17%;
  border-color: rgba(47, 125, 255, .3);
  animation: spin 18s linear infinite reverse;
  border-style: dashed;
}

.orb__ring--3 {
  inset: 23%;
  border-color: rgba(139, 108, 255, .34);
  animation: spin 12s linear infinite;
}

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

.orb__core {
  width: 40%;
  aspect-ratio: 1;
  border-radius: 50%;
  display: grid;
  place-content: center;
  text-align: center;
  gap: 4px;
  background: radial-gradient(circle at 32% 28%, rgba(34, 224, 255, .28), rgba(47, 125, 255, .12) 55%, transparent 72%);
  border: 1px solid rgba(34, 224, 255, .35);
  box-shadow: 0 0 60px -8px rgba(34, 224, 255, .45), inset 0 0 40px rgba(47, 125, 255, .25);
  backdrop-filter: blur(4px);
}

.orb__core span {
  font-size: 10.5px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--cyan);
}

.orb__core b { font-size: 14px; letter-spacing: -.01em; }

.orb__tag {
  position: absolute;
  font-size: 11px;
  letter-spacing: .1em;
  padding: 5px 10px;
  border-radius: 999px;
  color: var(--text);
  background: rgba(6, 13, 24, .82);
  border: 1px solid var(--line-strong);
  box-shadow: 0 6px 18px -8px #000;
  animation: floaty 6s ease-in-out infinite;
}

.orb__tag--1 { top: 2%;  left: 50%; translate: -50% 0; animation-delay: 0s; }
.orb__tag--2 { top: 26%; right: -4%; animation-delay: .4s; }
.orb__tag--3 { bottom: 22%; right: -2%; animation-delay: .8s; }
.orb__tag--4 { bottom: 0;  left: 50%; translate: -50% 0; animation-delay: 1.2s; }
.orb__tag--5 { bottom: 22%; left: -4%; animation-delay: 1.6s; }
.orb__tag--6 { top: 26%; left: -2%; animation-delay: 2s; }

/* ============================ 质量卡片 ============================ */
.qcard {
  position: relative;
  padding: 26px 24px;
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, .05), rgba(255, 255, 255, .012));
  transition: transform .4s var(--ease), border-color .4s, background .4s;
}

.qcard:hover {
  transform: translateY(-4px);
  border-color: rgba(139, 108, 255, .4);
  background: linear-gradient(180deg, rgba(139, 108, 255, .09), rgba(255, 255, 255, .012));
}

.qcard__badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .14em;
  padding: 5px 11px;
  border-radius: 6px;
  margin-bottom: 16px;
  color: var(--cyan);
  background: rgba(34, 224, 255, .1);
  border: 1px solid rgba(34, 224, 255, .26);
}

.qcard h3 { font-size: 17px; margin-bottom: 10px; }
.qcard p { font-size: 13.8px; color: var(--text-dim); margin-bottom: 12px; }

.qcard__note {
  font-size: 12px !important;
  color: var(--text-mute) !important;
  border-top: 1px dashed var(--line);
  padding-top: 12px;
  margin-bottom: 0 !important;
}

/* 引用 ---------------------------------------------------------------- */
.quote {
  position: relative;
  margin-top: clamp(40px, 6vw, 72px);
  padding: clamp(28px, 4vw, 46px);
  border-radius: var(--radius);
  border: 1px solid var(--line);
  background:
    radial-gradient(700px 260px at 12% 0%, rgba(34, 224, 255, .12), transparent 70%),
    rgba(255, 255, 255, .02);
  overflow: hidden;
}

.quote__mark {
  width: 34px;
  height: 34px;
  color: rgba(34, 224, 255, .45);
  margin-bottom: 14px;
}

.quote blockquote {
  margin: 0 0 16px;
  font-size: clamp(18px, 2.1vw, 26px);
  line-height: 1.55;
  letter-spacing: -.02em;
  font-weight: 600;
  max-width: 40ch;
}

.quote cite {
  font-style: normal;
  font-size: 12.5px;
  letter-spacing: .06em;
  color: var(--text-mute);
}

/* ============================ 时间线 ============================ */
.timeline {
  position: relative;
  display: grid;
  gap: 26px;
  padding-left: 26px;
  max-width: 880px;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 8px;
  bottom: 8px;
  width: 1px;
  background: linear-gradient(to bottom, rgba(34, 224, 255, .6), rgba(47, 125, 255, .25), transparent);
}

.tl { position: relative; }

.tl__dot {
  position: absolute;
  left: -26px;
  top: 10px;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  background: var(--bg);
  border: 2px solid var(--cyan);
  box-shadow: 0 0 0 4px rgba(34, 224, 255, .1);
}

.tl__body {
  padding: 22px 24px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, .025);
  transition: border-color .35s, background .35s, transform .35s var(--ease);
}

.tl__body:hover {
  border-color: rgba(34, 224, 255, .32);
  background: rgba(34, 224, 255, .045);
  transform: translateX(4px);
}

.tl__meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}

.tl__ver {
  font-weight: 800;
  font-size: 15px;
  letter-spacing: -.01em;
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.tl__date {
  font-size: 11.5px;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--text-mute);
}

.tl__body h3 { font-size: 16.5px; margin-bottom: 10px; }

.tl__body ul { display: grid; gap: 6px; }

.tl__body li {
  position: relative;
  padding-left: 16px;
  font-size: 14px;
  color: var(--text-dim);
}

.tl__body li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: rgba(47, 125, 255, .9);
}

/* ============================ 套件 ============================ */
.suite {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 16px;
}

.suite__item {
  position: relative;
  padding: 24px 22px 46px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, .022);
  transition: transform .35s var(--ease), border-color .35s, background .35s;
}

.suite__item:hover {
  transform: translateY(-4px);
  border-color: rgba(34, 224, 255, .32);
  background: rgba(34, 224, 255, .05);
}

.suite__item h3 {
  font-size: 16.5px;
  letter-spacing: -.01em;
  margin-bottom: 8px;
}

.suite__item p { font-size: 13.5px; color: var(--text-dim); margin: 0; }

.suite__role {
  position: absolute;
  left: 22px;
  bottom: 18px;
  font-size: 10.5px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--text-mute);
}

/* ============================ CTA ============================ */
.section--cta {
  background:
    radial-gradient(900px 420px at 50% 120%, rgba(47, 125, 255, .16), transparent 68%),
    var(--bg);
  border-top: 1px solid var(--line);
}

.cta {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, .95fr);
  gap: clamp(30px, 5vw, 64px);
  align-items: center;
  padding: clamp(28px, 4vw, 52px);
  border-radius: 24px;
  border: 1px solid var(--line);
  background:
    linear-gradient(150deg, rgba(255, 255, 255, .06), rgba(255, 255, 255, .014));
  box-shadow: var(--shadow);
}

.cta__copy h2 { font-size: clamp(26px, 3.2vw, 40px); max-width: 22ch; }
.cta__copy p { color: var(--text-dim); font-size: 15px; }

.cta__form { display: grid; gap: 14px; }

.field { display: grid; gap: 6px; }

.field label {
  font-size: 12px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--text-mute);
}

.field input,
.field select {
  width: 100%;
  padding: 12px 14px;
  font-size: 14.5px;
  color: var(--text);
  background: rgba(5, 10, 18, .6);
  border: 1px solid var(--line-strong);
  border-radius: 10px;
  outline: none;
  font-family: inherit;
  transition: border-color .25s, box-shadow .25s, background .25s;
  appearance: none;
}

.field select {
  background-image: linear-gradient(45deg, transparent 50%, var(--text-dim) 50%),
    linear-gradient(135deg, var(--text-dim) 50%, transparent 50%);
  background-position: calc(100% - 20px) 51%, calc(100% - 15px) 51%;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
}

.field input::placeholder { color: #53617350; }

.field input:focus,
.field select:focus {
  border-color: rgba(34, 224, 255, .6);
  box-shadow: 0 0 0 3px rgba(34, 224, 255, .12);
  background: rgba(5, 10, 18, .85);
}

.field input[aria-invalid="true"] {
  border-color: rgba(255, 106, 106, .7);
}

.form__msg {
  margin: 2px 0 0;
  font-size: 13px;
  min-height: 1.4em;
  color: var(--lime);
}

.form__msg.is-error { color: #ff8a8a; }

/* ============================ 页脚 ============================ */
.footer {
  padding: 54px 0 30px;
  border-top: 1px solid var(--line);
  background: var(--bg-2);
}

.footer__inner {
  display: flex;
  flex-wrap: wrap;
  gap: 30px;
  justify-content: space-between;
  padding-bottom: 30px;
  border-bottom: 1px solid var(--line);
}

.footer__brand { max-width: 340px; }
.footer__brand .brand__text { font-size: 16px; }
.footer__brand p { margin: 10px 0 0; font-size: 13px; color: var(--text-mute); }

.footer__nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
  align-content: flex-start;
  font-size: 13.5px;
}

.footer__nav a { color: var(--text-dim); transition: color .2s; }
.footer__nav a:hover { color: var(--cyan); }

.footer__legal {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  justify-content: space-between;
  padding-top: 22px;
  font-size: 12px;
  color: var(--text-mute);
}

.footer__legal p { margin: 0; }

/* ============================ 动效 ============================ */
.reveal {
  transition: opacity .8s var(--ease), transform .8s var(--ease);
}

/* 仅在 JS 可用时启用隐藏-入场，保证无脚本环境内容可见 */
.js .reveal {
  opacity: 0;
  transform: translateY(26px);
}

.js .reveal.in { opacity: 1; transform: none; }

@media print {
  .reveal,
  .js .reveal { opacity: 1 !important; transform: none !important; }
  .hero__canvas,
  .hero__glow,
  .scroll-progress { display: none !important; }
}

/* ============================ 响应式 ============================ */
@media (max-width: 1024px) {
  .hero__inner { grid-template-columns: 1fr; }
  .hero__panel { max-width: 460px; }
  .split { grid-template-columns: 1fr; }
  .split__panel { order: -1; min-height: 340px; }
  .cta { grid-template-columns: 1fr; }
}

@media (max-width: 860px) {
  .nav__links {
    position: fixed;
    inset: var(--nav-h) 0 auto 0;
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    padding: 14px 24px 22px;
    background: rgba(6, 10, 18, .985);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--line);
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: opacity .3s var(--ease), transform .3s var(--ease);
  }

  .nav__links.is-open {
    opacity: 1;
    transform: none;
    pointer-events: auto;
  }

  .nav__links a { padding: 12px 10px; font-size: 15px; }
  .nav__links a.nav__cta { margin: 8px 0 0; text-align: center; }
  .nav__toggle { display: flex; margin-left: 10px; }
  .lang { margin-left: auto; }

  .hero__stats { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 20px 14px; }
  .hero__scroll { display: none; }
}

@media (max-width: 560px) {
  body { font-size: 15px; }
  .wrap,
  .nav__inner,
  .hero__inner { width: min(100% - 32px, var(--wrap)); }
  .nav__inner { gap: 10px; }
  .brand { font-size: 16px; gap: 8px; }
  .brand__mark { width: 26px; height: 26px; }
  .lang { padding: 2px; }
  .lang button { padding: 4px 7px; font-size: 11.5px; }
  .nav__toggle { width: 40px; height: 40px; padding: 10px 9px; }
  .hero { padding-top: calc(var(--nav-h) + 26px); }
  .hero__actions .btn { width: 100%; }
  .card, .ucard, .qcard { padding: 22px 20px; }
  .quote blockquote { font-size: 17px; }
  .timeline { padding-left: 20px; }
  .tl__dot { left: -20px; }
  .tl__body { padding: 18px 18px; }
  .marquee__track { animation-duration: 24s; }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
  }
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
}

/* ==========================================================================
   官网内容模块（Hero 实拍图 / 图文块 / 客户评价 / 产品与资源卡）
   ========================================================================== */

/* Hero 背景实拍 ------------------------------------------------------- */
.hero__photo {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 58% 42%;
  opacity: .85;
  z-index: -6;
}

.hero__scrim {
  position: absolute;
  inset: 0;
  z-index: -5;
  background:
    linear-gradient(90deg, rgba(5, 8, 15, .985) 0%, rgba(5, 8, 15, .93) 30%, rgba(5, 8, 15, .34) 58%, rgba(5, 8, 15, .62) 100%),
    linear-gradient(0deg, rgba(5, 8, 15, .94) 0%, rgba(5, 8, 15, .12) 45%, rgba(5, 8, 15, .40) 100%);
}

.hero__lead--dim {
  color: var(--text-dim);
  font-size: clamp(14.5px, 1.15vw, 17px);
  margin-top: -8px;
  max-width: 46ch;
}

.hero__lead:first-of-type { font-size: clamp(16px, 1.4vw, 20px); color: #fff; font-weight: 600; }

.stat__num--text {
  font-size: clamp(16px, 1.35vw, 19px) !important;
  letter-spacing: -.01em;
  line-height: 1.5;
  padding-top: .5em;
  white-space: nowrap;
}

/* Hero 背景实拍 ------------------------------------------------------- */
.media-block {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(30px, 6vw, 76px);
  align-items: center;
}

.media-block__copy h2 { font-size: clamp(26px, 3.2vw, 42px); }
.media-block__copy p { color: var(--text-dim); font-size: 15.5px; }

.media-block__figure { margin: 0; }

.media-block__figure img {
  width: 100%;
  aspect-ratio: 16 / 11;
  object-fit: cover;
  border-radius: 18px;
  border: 1px solid var(--line);
  box-shadow: var(--shadow);
}

.media-block__figure figcaption {
  margin-top: 12px;
  font-size: 12.5px;
  color: var(--text-mute);
  letter-spacing: .02em;
}

.checklist {
  display: grid;
  gap: 9px;
  margin-top: 22px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.checklist li {
  position: relative;
  padding-left: 24px;
  font-size: 14px;
  color: var(--text-dim);
}

.checklist li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .5em;
  width: 13px;
  height: 13px;
  border-radius: 50%;
  border: 1px solid rgba(34, 224, 255, .55);
  background: radial-gradient(circle, var(--cyan) 34%, transparent 40%);
}

/* 卡片图标改用官网 SVG ------------------------------------------------ */
.card__icon img { width: 26px; height: 26px; object-fit: contain; }
.card__icon { background: rgba(34, 224, 255, .07); }

/* 特色大卡（手游体验） ------------------------------------------------ */
.feature {
  display: grid;
  grid-template-columns: minmax(0, .88fr) minmax(0, 1.12fr);
  gap: clamp(24px, 4vw, 56px);
  align-items: center;
  padding: clamp(20px, 3vw, 34px);
  border: 1px solid var(--line);
  border-radius: 24px;
  background:
    radial-gradient(700px 300px at 0% 0%, rgba(139, 108, 255, .14), transparent 65%),
    linear-gradient(150deg, rgba(255, 255, 255, .05), rgba(255, 255, 255, .012));
}

.feature__figure { margin: 0; }

.feature__figure img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: 16px;
  border: 1px solid var(--line);
}

.feature__copy h2 { font-size: clamp(24px, 2.8vw, 36px); }
.feature__copy p { color: var(--text-dim); font-size: 15px; }

/* 链接箭头 ------------------------------------------------------------ */
.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 14px;
  font-weight: 650;
  color: var(--cyan);
  margin-top: 6px;
}

.link-arrow svg { width: 16px; height: 16px; transition: transform .25s var(--ease); }
.link-arrow:hover svg { transform: translateX(4px); }

/* Use case 图文交替 --------------------------------------------------- */
.usecase-list { display: grid; gap: clamp(34px, 5vw, 64px); }

.usecase {
  display: grid;
  grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr);
  gap: clamp(24px, 4.5vw, 60px);
  align-items: center;
}

.usecase--flip .usecase__figure { order: 2; }

.usecase__figure { margin: 0; }

.usecase__figure img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border-radius: 18px;
  border: 1px solid var(--line);
  box-shadow: 0 24px 60px -34px #000;
}

.usecase__no {
  display: block;
  font-size: 12px;
  letter-spacing: .22em;
  color: rgba(34, 224, 255, .8);
  margin-bottom: 10px;
  font-variant-numeric: tabular-nums;
}

.usecase__body h3 { font-size: clamp(20px, 2.1vw, 26px); margin-bottom: 8px; }

.usecase__sub {
  color: var(--cyan);
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 14px;
}

.usecase__body p { color: var(--text-dim); font-size: 14.8px; }

/* 客户评价 ------------------------------------------------------------ */
.tgrid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 18px;
}

.tcard {
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 26px 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(180deg, rgba(255, 255, 255, .045), rgba(255, 255, 255, .012));
  transition: transform .35s var(--ease), border-color .35s;
}

.tcard:hover { transform: translateY(-3px); border-color: var(--line-strong); }

.tcard__logo {
  height: 32px;
  width: auto;
  max-width: 170px;
  object-fit: contain;
  object-position: left center;
  background: #eef3f9;
  padding: 6px 10px;
  border-radius: 7px;
  opacity: .95;
  transition: opacity .3s;
  align-self: flex-start;
}

.tcard:hover .tcard__logo { opacity: .9; }

.tcard__logo--tall { height: 46px; max-width: 190px; }

.tcard blockquote {
  margin: 0;
  font-size: 14.2px;
  line-height: 1.72;
  color: var(--text);
  flex: 1;
}

.tcard__who {
  margin: 0;
  font-size: 12.5px;
  color: var(--text-dim);
  letter-spacing: .01em;
}

.tcard__who span {
  display: block;
  color: var(--text-mute);
  font-size: 11.5px;
  margin-top: 2px;
}

/* 相关产品卡 ---------------------------------------------------------- */
.pgrid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(258px, 1fr));
  gap: 18px;
}

.pcard {
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(255, 255, 255, .022);
  transition: transform .35s var(--ease), border-color .35s, background .35s;
}

.pcard:hover {
  transform: translateY(-4px);
  border-color: rgba(34, 224, 255, .34);
  background: rgba(34, 224, 255, .04);
}

.pcard img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  border-bottom: 1px solid var(--line);
}

.pcard__body {
  display: flex;
  flex-direction: column;
  gap: 7px;
  padding: 18px 18px 20px;
  flex: 1;
}

.pcard__tag {
  font-size: 10.5px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--cyan);
}

.pcard__tag--alt { color: var(--violet); }

.pcard h3 { font-size: 16.5px; margin: 0; }

.pcard p {
  margin: 0;
  font-size: 13.4px;
  color: var(--text-dim);
  flex: 1;
}

.pcard__more {
  font-size: 12.5px;
  font-weight: 600;
  color: var(--text);
  margin-top: 6px;
}

.pcard:hover .pcard__more { color: var(--cyan); }

/* 资源卡 -------------------------------------------------------------- */
.rgrid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 18px;
}

.rcard {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(190deg, rgba(255, 255, 255, .045), rgba(255, 255, 255, .01));
  transition: transform .35s var(--ease), border-color .35s;
}

.rcard:hover { transform: translateY(-3px); border-color: rgba(139, 108, 255, .38); }

.rcard__tag {
  font-size: 10.5px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--violet);
}

.rcard h3 { font-size: 16px; margin: 0; }

.rcard p { margin: 0; font-size: 13.4px; color: var(--text-dim); flex: 1; }

.rcard__more { font-size: 12.5px; font-weight: 600; color: var(--text); }

.rcard:hover .rcard__more { color: var(--cyan); }

/* 表单补充 ------------------------------------------------------------ */
.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.field textarea {
  width: 100%;
  padding: 12px 14px;
  font-size: 14.5px;
  color: var(--text);
  background: rgba(5, 10, 18, .6);
  border: 1px solid var(--line-strong);
  border-radius: 10px;
  outline: none;
  font-family: inherit;
  line-height: 1.6;
  resize: vertical;
  min-height: 84px;
  transition: border-color .25s, box-shadow .25s, background .25s;
}

.field textarea::placeholder { color: #53617350; }

.field textarea:focus {
  border-color: rgba(34, 224, 255, .6);
  box-shadow: 0 0 0 3px rgba(34, 224, 255, .12);
  background: rgba(5, 10, 18, .85);
}

.form__note {
  margin: 0;
  font-size: 11.5px;
  color: var(--text-mute);
}

.cta__sign {
  color: var(--cyan) !important;
  font-size: 14px !important;
  margin-top: 18px !important;
}

/* 新模块响应式 -------------------------------------------------------- */
@media (max-width: 1024px) {
  .media-block,
  .feature,
  .usecase { grid-template-columns: 1fr; }

  .usecase--flip .usecase__figure { order: 0; }

  .hero__photo { object-position: 68% 38%; opacity: .7; }

  .hero__scrim {
    background:
      linear-gradient(180deg, rgba(5, 8, 15, .92) 0%, rgba(5, 8, 15, .58) 38%, rgba(5, 8, 15, .96) 100%);
  }
}

@media (max-width: 560px) {
  .field-row { grid-template-columns: 1fr; }
  .hero__panel { padding: 12px 12px 8px; }
  .tgrid, .pgrid, .rgrid { gap: 14px; }
  .feature { padding: 18px; }
}