/* ==========================================================================
   立昇智能科技(上海)有限公司官网 · Active Theory 风格
   设计基调：深空暗色 + 品牌藏蓝/荧光绿 + 智能汽车节点网络母题
   ========================================================================== */

:root {
  --bg: #04070e;
  --bg-2: #070c17;
  --ink: #e9eef7;
  --ink-dim: rgba(233, 238, 247, 0.52);
  --ink-faint: rgba(233, 238, 247, 0.28);
  --blue: #1b3c6e;
  --blue-bright: #4d8dff;
  --lime: #aeca0d;
  --lime-bright: #c9e637;
  --line: rgba(233, 238, 247, 0.1);
  --font-en: "Space Grotesk", "Segoe UI", sans-serif;
  --font-cn: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-expo: cubic-bezier(0.87, 0, 0.13, 1);
  --pad: clamp(1.25rem, 4vw, 4rem);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scrollbar-width: thin; scrollbar-color: rgba(233,238,247,.25) transparent; }
html.lenis, html.lenis body { height: auto; }
.lenis.lenis-smooth { scroll-behavior: auto !important; }

body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-cn);
  font-weight: 300;
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

::selection { background: var(--lime); color: #04070e; }
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-thumb { background: rgba(233, 238, 247, 0.22); border-radius: 4px; }

a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { background: none; border: none; color: inherit; font: inherit; cursor: pointer; }
img { display: block; max-width: 100%; }

@media (pointer: fine) {
  body { cursor: none; }
  a, button, [data-hover] { cursor: none; }
}

/* ==========================================================================
   品牌字标（文字重绘 logo，深色背景下保持清晰）
   ========================================================================== */

.brand { display: inline-flex; flex-direction: column; align-items: flex-start; gap: 2px; }

.brand__nodes { width: 64px; height: 22px; overflow: visible; }
.bln { stroke: rgba(233, 238, 247, 0.4); stroke-width: 1.4; }
.bnd--b { fill: var(--blue-bright); }
.bnd--g { fill: var(--lime); }

.brand__text {
  font-family: var(--font-en);
  font-weight: 700;
  font-size: 1.18rem;
  letter-spacing: 0.04em;
  color: var(--ink);
  line-height: 1;
}
.brand__text em { font-style: normal; color: var(--lime); margin-left: 1px; }
.brand__text--lg { font-size: 1.8rem; }

/* ==========================================================================
   加载器
   ========================================================================== */

.loader {
  position: fixed; inset: 0; z-index: 1000;
  background: var(--bg);
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 1.6rem;
}

.loader__svg { width: clamp(180px, 26vw, 300px); overflow: visible; }
.loader__svg .ln {
  stroke: rgba(233, 238, 247, 0.35); stroke-width: 1.6;
  stroke-dasharray: 120; stroke-dashoffset: 120;
  animation: drawLine 1.4s var(--ease-out) forwards;
}
.loader__svg .ln:nth-child(2) { animation-delay: 0.25s; }
.loader__svg .ln:nth-child(3) { animation-delay: 0.5s; }
.loader__svg .ln:nth-child(4) { animation-delay: 0.75s; }
.loader__svg .nd { opacity: 0; transform-origin: center; animation: popNode 0.6s var(--ease-out) forwards; }
.loader__svg .nd--b { fill: var(--blue-bright); }
.loader__svg .nd--g { fill: var(--lime); }
.loader__svg .nd:nth-child(5) { animation-delay: 0.1s; }
.loader__svg .nd:nth-child(6) { animation-delay: 0.35s; }
.loader__svg .nd:nth-child(7) { animation-delay: 0.6s; }
.loader__svg .nd:nth-child(8) { animation-delay: 0.85s; }
.loader__svg .nd:nth-child(9) { animation-delay: 1.1s; }

@keyframes drawLine { to { stroke-dashoffset: 0; } }
@keyframes popNode {
  0% { opacity: 0; transform: scale(0); }
  70% { opacity: 1; transform: scale(1.4); }
  100% { opacity: 1; transform: scale(1); }
}

.loader__brand {
  font-family: var(--font-en); font-weight: 700;
  font-size: clamp(1.4rem, 3vw, 2rem); letter-spacing: 0.14em;
}
.loader__lux { color: var(--ink); }
.loader__ict { color: var(--lime); }

.loader__count {
  position: absolute; right: var(--pad); bottom: calc(var(--pad) - 0.5rem);
  font-family: var(--font-en); font-weight: 300;
  font-size: clamp(4rem, 12vw, 9rem); line-height: 1;
  color: rgba(233, 238, 247, 0.14);
}
.loader__count::after { content: "%"; font-size: 0.3em; vertical-align: super; }

.loader__bar {
  position: absolute; left: 0; bottom: 0;
  width: 100%; height: 2px; background: rgba(233, 238, 247, 0.08);
}
.loader__bar span {
  display: block; height: 100%; width: 0%;
  background: linear-gradient(90deg, var(--blue-bright), var(--lime));
}

/* ==========================================================================
   过渡幕布
   ========================================================================== */

.curtain { position: fixed; inset: 0; z-index: 900; display: flex; pointer-events: none; visibility: hidden; }
.curtain__panel { flex: 1; background: var(--bg-2); transform: scaleY(1); transform-origin: top; }

/* ==========================================================================
   自定义光标
   ========================================================================== */

.cursor { position: fixed; inset: 0; z-index: 1100; pointer-events: none; }
@media (pointer: coarse) { .cursor { display: none; } }

.cursor__dot {
  position: absolute; top: 0; left: 0;
  width: 6px; height: 6px; margin: -3px 0 0 -3px;
  border-radius: 50%; background: var(--lime-bright);
}

.cursor__ring {
  position: absolute; top: 0; left: 0;
  width: 36px; height: 36px; margin: -18px 0 0 -18px;
  border: 1px solid rgba(233, 238, 247, 0.35);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  transition: width 0.35s var(--ease-out), height 0.35s var(--ease-out),
              margin 0.35s var(--ease-out), background-color 0.35s, border-color 0.35s;
}

.cursor__label {
  font-size: 11px; letter-spacing: 0.2em; font-weight: 500;
  color: #04070e; opacity: 0; transform: scale(0.5);
  transition: opacity 0.25s, transform 0.25s var(--ease-out);
}

.cursor--hover .cursor__ring {
  width: 64px; height: 64px; margin: -32px 0 0 -32px;
  background: rgba(201, 230, 55, 0.12); border-color: var(--lime);
}

.cursor--label .cursor__ring {
  width: 84px; height: 84px; margin: -42px 0 0 -42px;
  background: var(--lime); border-color: var(--lime);
}
.cursor--label .cursor__label { opacity: 1; transform: scale(1); }
.cursor--label .cursor__dot { opacity: 0; }

.cursor--down .cursor__ring { transform: scale(0.85); }

/* ==========================================================================
   背景层：WebGL / 颗粒 / 暗角
   ========================================================================== */

.webgl { position: fixed; inset: 0; z-index: 0; width: 100%; height: 100%; }

.vignette {
  position: fixed; inset: 0; z-index: 1; pointer-events: none;
  background: radial-gradient(ellipse 120% 90% at 50% 40%, transparent 55%, rgba(2, 4, 9, 0.55) 100%);
}

.grain { position: fixed; inset: -100%; z-index: 950; pointer-events: none; opacity: 0.05; }
.grain::before {
  content: ""; position: absolute; inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  animation: grainShift 0.7s steps(4) infinite;
}
@keyframes grainShift {
  0% { transform: translate(0, 0); }
  25% { transform: translate(-2%, 3%); }
  50% { transform: translate(3%, -2%); }
  75% { transform: translate(-3%, -3%); }
  100% { transform: translate(2%, 2%); }
}

/* ==========================================================================
   顶部导航
   ========================================================================== */

.header {
  position: fixed; top: 0; left: 0; right: 0; z-index: 800;
  display: flex; align-items: center; justify-content: space-between;
  padding: 1.4rem var(--pad);
  mix-blend-mode: normal;
  transition: transform 0.5s var(--ease-out);
}
.header--hidden { transform: translateY(-110%); }

.header__right { display: flex; align-items: center; gap: 2rem; }

.header__time {
  font-family: var(--font-en); font-size: 0.78rem; font-weight: 400;
  letter-spacing: 0.18em; color: var(--ink-dim);
}

.menu-btn { display: flex; align-items: center; gap: 0.9rem; padding: 0.5rem 0; }
.menu-btn__label {
  font-size: 0.82rem; letter-spacing: 0.34em; font-weight: 400;
  text-transform: uppercase; color: var(--ink);
}
.menu-btn__lines { display: flex; flex-direction: column; gap: 6px; width: 30px; }
.menu-btn__lines i {
  display: block; height: 1.5px; background: var(--ink);
  transition: transform 0.45s var(--ease-expo), width 0.45s var(--ease-expo), background-color 0.3s;
}
.menu-btn__lines i:nth-child(2) { width: 70%; align-self: flex-end; }
.menu-btn:hover .menu-btn__lines i:nth-child(2) { width: 100%; }

body.menu-open .menu-btn__lines i:nth-child(1) { transform: translateY(3.75px) rotate(45deg); }
body.menu-open .menu-btn__lines i:nth-child(2) { width: 100%; transform: translateY(-3.75px) rotate(-45deg); }

/* ==========================================================================
   全屏菜单
   ========================================================================== */

.menu {
  position: fixed; inset: 0; z-index: 700;
  visibility: hidden; pointer-events: none;
}
.menu.is-open { visibility: visible; pointer-events: auto; }

.menu__bg {
  position: absolute; inset: 0;
  background: rgba(5, 9, 18, 0.92);
  backdrop-filter: blur(18px); -webkit-backdrop-filter: blur(18px);
  clip-path: circle(0% at calc(100% - 4rem) 2.5rem);
  transition: clip-path 0.9s var(--ease-expo);
}
.menu.is-open .menu__bg { clip-path: circle(150% at calc(100% - 4rem) 2.5rem); }

.menu__inner {
  position: relative; height: 100%;
  display: flex; flex-direction: column; justify-content: center;
  padding: 0 var(--pad);
  max-width: 1200px; margin: 0 auto;
}

.menu__list { display: flex; flex-direction: column; }

.menu__link {
  position: relative;
  display: flex; align-items: baseline; gap: 1.6rem;
  padding: clamp(0.4rem, 1.2vh, 0.8rem) 0;
  overflow: hidden;
}
.menu__link::before {
  content: attr(data-index);
  font-family: var(--font-en); font-size: 0.75rem; font-weight: 400;
  color: var(--lime); letter-spacing: 0.1em;
  transform: translateY(-0.8em);
}

.menu__cn {
  font-size: clamp(2.2rem, 6.5vh, 4rem); font-weight: 200; line-height: 1.18;
  letter-spacing: 0.06em;
  transition: color 0.4s, transform 0.6s var(--ease-out), letter-spacing 0.6s var(--ease-out);
}
.menu__en {
  font-family: var(--font-en); font-size: 0.85rem; font-weight: 400;
  letter-spacing: 0.28em; text-transform: uppercase; color: var(--ink-faint);
  transition: color 0.4s;
}

.menu__link:hover .menu__cn { color: var(--lime-bright); transform: translateX(14px); letter-spacing: 0.1em; }
.menu__link:hover .menu__en { color: var(--ink-dim); }

.menu__link .menu__cn, .menu__link::before, .menu__link .menu__en {
  opacity: 0; translate: 0 40px;
  transition: opacity 0.6s var(--ease-out), translate 0.7s var(--ease-out),
              color 0.4s, transform 0.6s var(--ease-out), letter-spacing 0.6s var(--ease-out);
}
.menu.is-open .menu__link .menu__cn,
.menu.is-open .menu__link::before,
.menu.is-open .menu__link .menu__en { opacity: 1; translate: 0 0; }
.menu.is-open .menu__link .menu__en { opacity: 0.6; }

.menu__footer {
  display: flex; gap: 4rem; margin-top: 6vh;
  opacity: 0; translate: 0 20px;
  transition: opacity 0.6s 0.45s, translate 0.6s 0.45s var(--ease-out);
}
.menu.is-open .menu__footer { opacity: 1; translate: 0 0; }
.menu__meta { font-size: 0.82rem; color: var(--ink-dim); letter-spacing: 0.08em; line-height: 2; }
.menu__meta a:hover { color: var(--lime-bright); }

/* ==========================================================================
   通用区块
   ========================================================================== */

main { position: relative; z-index: 10; }

.section { position: relative; padding: clamp(6rem, 14vh, 11rem) var(--pad); }

.section__head {
  display: flex; align-items: center; gap: 1.2rem;
  margin-bottom: clamp(2.5rem, 6vh, 4.5rem);
}
.section__index {
  font-family: var(--font-en); font-size: 0.78rem; font-weight: 500;
  color: var(--lime); letter-spacing: 0.1em;
}
.section__label {
  font-size: 0.8rem; font-weight: 400; letter-spacing: 0.34em;
  text-transform: uppercase; color: var(--ink-dim);
}
.section__head::after {
  content: ""; flex: 1; height: 1px;
  background: linear-gradient(90deg, var(--line), transparent);
}

/* 文本揭示工具类 */
.reveal-line { overflow: hidden; }
.reveal-line > span { display: inline-block; transform: translateY(120%); }

.reveal-block { opacity: 0; transform: translateY(50px); }

[data-words] .w { display: inline-block; opacity: 0.12; transition: opacity 0.5s; }
[data-words] .w.on { opacity: 1; }

/* 箭头链接 */
.link-arrow {
  display: inline-flex; align-items: center; gap: 0.7rem;
  font-size: 0.92rem; letter-spacing: 0.12em; color: var(--ink);
  padding-bottom: 0.35rem; position: relative;
}
.link-arrow::after {
  content: ""; position: absolute; left: 0; bottom: 0;
  width: 100%; height: 1px; background: var(--ink-faint);
}
.link-arrow::before {
  content: ""; position: absolute; left: 0; bottom: 0; z-index: 1;
  width: 100%; height: 1px; background: var(--lime);
  transform: scaleX(0); transform-origin: right;
  transition: transform 0.5s var(--ease-expo);
}
.link-arrow:hover::before { transform: scaleX(1); transform-origin: left; }
.link-arrow i {
  font-style: normal;
  transition: transform 0.4s var(--ease-out), color 0.3s;
}
.link-arrow:hover i { transform: translateX(6px); color: var(--lime-bright); }

/* ==========================================================================
   首屏 Hero
   ========================================================================== */

.hero {
  min-height: 100svh;
  display: flex; flex-direction: column; justify-content: center;
  padding-top: 14vh;
}

.hero__eyebrow {
  font-family: var(--font-en); font-size: 0.82rem; font-weight: 400;
  letter-spacing: 0.42em; color: var(--lime);
  margin-bottom: clamp(1.2rem, 3vh, 2rem);
  text-transform: uppercase;
}

.hero__title {
  font-weight: 900; line-height: 1.04;
  font-size: clamp(3.4rem, 11.5vw, 10.5rem);
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.hero__row { display: block; overflow: hidden; padding: 0.04em 0; }

.hero__row--outline .hero__word {
  color: transparent;
  -webkit-text-stroke: clamp(1px, 0.18vw, 2px) rgba(233, 238, 247, 0.85);
}

.hero__word { display: inline-block; }
.hero__word .ch { display: inline-block; transform: translateY(115%) rotate(4deg); }

.hero__sub {
  max-width: 34em;
  margin-top: clamp(1.6rem, 4vh, 2.8rem);
  font-size: clamp(0.95rem, 1.4vw, 1.12rem);
  color: var(--ink-dim); letter-spacing: 0.05em;
}

.hero__bottom {
  position: absolute; left: var(--pad); right: var(--pad); bottom: 2.2rem;
  display: flex; align-items: flex-end; justify-content: space-between;
}

.hero__scroll {
  display: flex; align-items: center; gap: 1rem;
  font-size: 0.78rem; letter-spacing: 0.3em; color: var(--ink-dim);
}
.hero__scroll-track {
  width: 1px; height: 52px; background: rgba(233, 238, 247, 0.15);
  position: relative; overflow: hidden;
}
.hero__scroll-dot {
  position: absolute; top: -14px; left: -1.5px;
  width: 4px; height: 14px; border-radius: 4px;
  background: var(--lime);
  animation: scrollDot 1.8s var(--ease-expo) infinite;
}
@keyframes scrollDot {
  0% { top: -16px; } 60% { top: 54px; } 100% { top: 54px; }
}

.hero__coord {
  font-family: var(--font-en); font-size: 0.74rem; font-weight: 400;
  letter-spacing: 0.16em; color: var(--ink-faint);
}

/* ==========================================================================
   跑马灯
   ========================================================================== */

.marquee {
  position: relative; z-index: 10;
  border-top: 1px solid var(--line); border-bottom: 1px solid var(--line);
  padding: 1.3rem 0; overflow: hidden;
  background: rgba(5, 9, 18, 0.35);
  backdrop-filter: blur(4px); -webkit-backdrop-filter: blur(4px);
}

.marquee__track { display: flex; width: max-content; will-change: transform; }
.marquee__track span {
  font-family: var(--font-en); font-weight: 500;
  font-size: clamp(1rem, 2vw, 1.5rem);
  letter-spacing: 0.22em; text-transform: uppercase;
  color: var(--ink-faint); white-space: nowrap; padding-right: 2rem;
}
.marquee__track span:nth-child(even) { color: rgba(174, 202, 13, 0.4); }

/* ==========================================================================
   关于我们
   ========================================================================== */

.about__statement {
  font-size: clamp(1.5rem, 3.4vw, 2.9rem);
  font-weight: 300; line-height: 1.55;
  max-width: 26em;
  margin-bottom: clamp(3.5rem, 9vh, 6.5rem);
}

.about__grid {
  display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
  gap: clamp(2.5rem, 6vw, 6rem);
  align-items: start;
}

.about__text p { color: var(--ink-dim); margin-bottom: 1.4rem; max-width: 30em; }
.about__text .link-arrow { margin-top: 1rem; }

.about__stats {
  display: grid; grid-template-columns: 1fr 1fr;
  border-left: 1px solid var(--line); border-top: 1px solid var(--line);
}

.stat { padding: 2rem 1.8rem 1.8rem; border-right: 1px solid var(--line); border-bottom: 1px solid var(--line); position: relative; overflow: hidden; }
.stat::before {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(77, 141, 255, 0.07), transparent 60%);
  opacity: 0; transition: opacity 0.5s;
}
.stat:hover::before { opacity: 1; }

.stat__num {
  font-family: var(--font-en); font-weight: 600;
  font-size: clamp(2.2rem, 4.2vw, 3.6rem); line-height: 1.1;
  color: var(--ink);
}
.stat:nth-child(2) .stat__num, .stat:nth-child(3) .stat__num { color: var(--lime); }
.stat__label { margin-top: 0.5rem; font-size: 0.82rem; letter-spacing: 0.14em; color: var(--ink-dim); }

/* ==========================================================================
   业务领域
   ========================================================================== */

.business__list {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: clamp(1.2rem, 2.5vw, 2rem);
}

.biz-card {
  position: relative;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: linear-gradient(180deg, rgba(10, 16, 30, 0.55), rgba(6, 10, 20, 0.85));
  overflow: hidden;
  transition: border-color 0.5s, transform 0.6s var(--ease-out), box-shadow 0.6s;
  transform-style: preserve-3d;
}
.biz-card:hover {
  border-color: rgba(174, 202, 13, 0.45);
  box-shadow: 0 30px 80px -30px rgba(77, 141, 255, 0.25);
}

.biz-card__visual {
  position: relative; height: clamp(180px, 24vh, 260px);
  overflow: hidden;
  border-bottom: 1px solid var(--line);
}

.biz-card__grid {
  position: absolute; inset: -1px;
  background-image:
    linear-gradient(rgba(233, 238, 247, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(233, 238, 247, 0.05) 1px, transparent 1px);
  background-size: 36px 36px;
  mask-image: radial-gradient(ellipse 90% 90% at 50% 50%, black 30%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 90% 90% at 50% 50%, black 30%, transparent 75%);
  transition: transform 0.8s var(--ease-out);
}
.biz-card:hover .biz-card__grid { transform: scale(1.12) rotate(1.5deg); }

.biz-card__orb {
  position: absolute; width: 240px; height: 240px; border-radius: 50%;
  filter: blur(46px); opacity: 0.85;
  transition: transform 0.9s var(--ease-out);
}
.biz-card:hover .biz-card__orb { transform: translate(20px, -16px) scale(1.18); }

.biz-card__visual--a .biz-card__orb { background: radial-gradient(circle, rgba(77,141,255,.5), transparent 65%); top: -60px; left: 8%; }
.biz-card__visual--b .biz-card__orb { background: radial-gradient(circle, rgba(174,202,13,.42), transparent 65%); top: -40px; right: 10%; }
.biz-card__visual--c .biz-card__orb { background: radial-gradient(circle, rgba(77,141,255,.45), rgba(174,202,13,.18) 55%, transparent 70%); bottom: -80px; left: 30%; }
.biz-card__visual--d .biz-card__orb { background: radial-gradient(circle, rgba(201,230,55,.34), transparent 60%); bottom: -70px; right: 16%; }

/* 卡片内装饰节点连线 */
.biz-card__visual::after {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(circle 3px at 22% 60%, var(--lime) 98%, transparent),
    radial-gradient(circle 3px at 46% 34%, var(--blue-bright) 98%, transparent),
    radial-gradient(circle 3px at 70% 58%, var(--lime-bright) 98%, transparent),
    radial-gradient(circle 3px at 86% 30%, var(--blue-bright) 98%, transparent);
  opacity: 0.8;
}

.biz-card__body { padding: clamp(1.6rem, 3vw, 2.4rem); position: relative; }

.biz-card__num {
  position: absolute; top: clamp(1.6rem, 3vw, 2.4rem); right: clamp(1.6rem, 3vw, 2.4rem);
  font-family: var(--font-en); font-size: 0.78rem; color: var(--ink-faint); letter-spacing: 0.2em;
}

.biz-card__title {
  font-size: clamp(1.35rem, 2.2vw, 1.8rem); font-weight: 500;
  letter-spacing: 0.04em; display: flex; flex-direction: column; gap: 0.3rem;
  margin-bottom: 1rem;
}
.biz-card__title em {
  font-style: normal; font-family: var(--font-en); font-weight: 400;
  font-size: 0.72rem; letter-spacing: 0.3em; text-transform: uppercase;
  color: var(--lime);
}

.biz-card__desc { color: var(--ink-dim); font-size: 0.95rem; max-width: 34em; margin-bottom: 1.6rem; }

.biz-card__tags { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.biz-card__tags li {
  font-size: 0.74rem; letter-spacing: 0.12em; color: var(--ink-dim);
  border: 1px solid var(--line); border-radius: 99px;
  padding: 0.32rem 0.85rem;
  transition: border-color 0.4s, color 0.4s, background-color 0.4s;
}
.biz-card:hover .biz-card__tags li { border-color: rgba(174, 202, 13, 0.35); color: var(--ink); }

/* ==========================================================================
   研发创新
   ========================================================================== */

.innovation__title {
  font-size: clamp(1.5rem, 3.4vw, 2.9rem); font-weight: 300; line-height: 1.5;
  max-width: 24em; margin-bottom: clamp(3.5rem, 9vh, 6rem);
}

.innovation__grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  border-left: 1px solid var(--line);
}

.inno-item { padding: 0 clamp(1.5rem, 3vw, 3rem); border-right: 1px solid var(--line); }

.inno-item__num {
  display: block;
  font-family: var(--font-en); font-weight: 300;
  font-size: clamp(3rem, 6.5vw, 5.5rem); line-height: 1;
  background: linear-gradient(120deg, var(--blue-bright), var(--lime-bright));
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 1.6rem;
}

.inno-item h3 { font-size: 1.02rem; font-weight: 500; letter-spacing: 0.1em; margin-bottom: 0.8rem; }
.inno-item p { font-size: 0.88rem; color: var(--ink-dim); }

/* ==========================================================================
   交付体系
   ========================================================================== */

.global { position: relative; }

.global__bg {
  position: absolute; inset: 0; pointer-events: none;
  background:
    radial-gradient(circle 2px at 12% 30%, rgba(77,141,255,.8) 98%, transparent),
    radial-gradient(circle 2px at 28% 64%, rgba(174,202,13,.8) 98%, transparent),
    radial-gradient(circle 2.5px at 45% 22%, rgba(77,141,255,.7) 98%, transparent),
    radial-gradient(circle 2px at 62% 70%, rgba(201,230,55,.7) 98%, transparent),
    radial-gradient(circle 2.5px at 78% 36%, rgba(77,141,255,.8) 98%, transparent),
    radial-gradient(circle 2px at 90% 60%, rgba(174,202,13,.8) 98%, transparent);
  opacity: 0.5;
  mask-image: linear-gradient(180deg, transparent, black 30%, black 70%, transparent);
  -webkit-mask-image: linear-gradient(180deg, transparent, black 30%, black 70%, transparent);
}

.global__rows { border-top: 1px solid var(--line); }

.global-row {
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(0, 6fr) minmax(0, 2fr);
  align-items: baseline; gap: 2rem;
  padding: clamp(1.8rem, 4vh, 2.8rem) 0.5rem;
  border-bottom: 1px solid var(--line);
  position: relative; overflow: hidden;
}
.global-row::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(90deg, rgba(77, 141, 255, 0.08), rgba(174, 202, 13, 0.05));
  transform: scaleY(0); transform-origin: bottom;
  transition: transform 0.5s var(--ease-expo);
}
.global-row:hover::before { transform: scaleY(1); }

.global-row__region {
  font-size: clamp(1.6rem, 3.2vw, 2.6rem); font-weight: 200; letter-spacing: 0.08em;
  transition: transform 0.5s var(--ease-out), color 0.4s;
}
.global-row:hover .global-row__region { transform: translateX(12px); color: var(--lime-bright); }

.global-row__cities { color: var(--ink-dim); font-size: 0.9rem; letter-spacing: 0.12em; }

.global-row__num {
  font-family: var(--font-en); text-align: right;
  font-size: 0.92rem; color: var(--ink-dim); letter-spacing: 0.14em;
}

.global__note { margin-top: 2.6rem; font-size: 0.85rem; color: var(--ink-faint); letter-spacing: 0.22em; }

/* ==========================================================================
   能力支撑
   ========================================================================== */

.news__list { border-top: 1px solid var(--line); }

.news-item {
  display: grid;
  grid-template-columns: minmax(0, 2fr) minmax(0, 8fr) minmax(0, 2fr) auto;
  align-items: center; gap: 2rem;
  padding: clamp(1.6rem, 3.6vh, 2.4rem) 0.5rem;
  border-bottom: 1px solid var(--line);
  position: relative;
}
.news-item::after {
  content: ""; position: absolute; left: 0; bottom: -1px;
  width: 100%; height: 1px;
  background: linear-gradient(90deg, var(--blue-bright), var(--lime));
  transform: scaleX(0); transform-origin: left;
  transition: transform 0.6s var(--ease-expo);
}
.news-item:hover::after { transform: scaleX(1); }

.news-item__date { font-family: var(--font-en); font-size: 0.85rem; color: var(--ink-faint); letter-spacing: 0.16em; }

.news-item__title {
  font-size: clamp(1.05rem, 1.9vw, 1.45rem); font-weight: 400; line-height: 1.5;
  transition: color 0.4s, transform 0.5s var(--ease-out);
}
.news-item:hover .news-item__title { color: var(--lime-bright); transform: translateX(10px); }

.news-item__cat { font-size: 0.76rem; letter-spacing: 0.2em; color: var(--ink-dim); text-align: right; }

.news-item__arrow {
  font-family: var(--font-en); font-size: 1.3rem; color: var(--ink-faint);
  transition: transform 0.5s var(--ease-out), color 0.4s;
}
.news-item:hover .news-item__arrow { transform: translateX(8px) rotate(-45deg); color: var(--lime); }

/* ==========================================================================
   联系我们
   ========================================================================== */

.contact {
  min-height: 88vh;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  text-align: center;
}

.contact__eyebrow {
  font-size: 0.84rem; letter-spacing: 0.42em; color: var(--ink-dim);
  margin-bottom: 2.4rem; text-transform: uppercase;
}

.contact__cta { display: block; }

.contact__cta-row {
  display: block;
  font-size: clamp(3.2rem, 11vw, 9.5rem);
  font-weight: 900; line-height: 1.08; letter-spacing: 0.03em;
  color: transparent;
  -webkit-text-stroke: clamp(1px, 0.16vw, 2px) rgba(233, 238, 247, 0.65);
  transition: color 0.5s, -webkit-text-stroke-color 0.5s, transform 0.7s var(--ease-out);
}

.contact__cta-row--accent { -webkit-text-stroke-color: rgba(174, 202, 13, 0.8); }

.contact__cta:hover .contact__cta-row { color: var(--ink); -webkit-text-stroke-color: transparent; transform: scale(1.02); }
.contact__cta:hover .contact__cta-row--accent { color: var(--lime); }

.contact__info {
  display: flex; gap: 3rem; flex-wrap: wrap; justify-content: center;
  margin-top: 4rem;
}

/* ==========================================================================
   页脚
   ========================================================================== */

.footer {
  position: relative;
  border-top: 1px solid var(--line);
  padding: clamp(3rem, 7vh, 5rem) var(--pad) 2rem;
  background: linear-gradient(180deg, transparent, rgba(4, 6, 12, 0.9));
}

.footer__top {
  display: flex; justify-content: space-between; gap: 3rem; flex-wrap: wrap;
  margin-bottom: 4rem;
}

.footer__slogan { margin-top: 0.8rem; font-size: 0.85rem; color: var(--ink-dim); letter-spacing: 0.3em; }

.footer__cols { display: flex; gap: clamp(2.5rem, 7vw, 7rem); flex-wrap: wrap; }

.footer__col { display: flex; flex-direction: column; gap: 0.7rem; }
.footer__col h4 {
  font-size: 0.74rem; font-weight: 500; letter-spacing: 0.3em;
  color: var(--ink-faint); text-transform: uppercase; margin-bottom: 0.6rem;
}
.footer__col a { font-size: 0.9rem; color: var(--ink-dim); transition: color 0.3s, transform 0.3s; width: fit-content; }
.footer__col a:hover { color: var(--lime-bright); transform: translateX(4px); }

.footer__bottom {
  display: flex; justify-content: space-between; align-items: center; gap: 1.5rem; flex-wrap: wrap;
  padding-top: 1.6rem;
  border-top: 1px solid var(--line);
  font-size: 0.76rem; color: var(--ink-faint); letter-spacing: 0.1em;
}

.footer__top-btn { letter-spacing: 0.2em; color: var(--ink-dim); transition: color 0.3s; }
.footer__top-btn:hover { color: var(--lime-bright); }

/* ==========================================================================
   响应式
   ========================================================================== */

@media (max-width: 960px) {
  .about__grid { grid-template-columns: 1fr; }
  .business__list { grid-template-columns: 1fr; }
  .innovation__grid { grid-template-columns: 1fr; border-left: none; }
  .inno-item { border-right: none; border-left: 1px solid var(--line); padding: 1.5rem; margin-bottom: 1rem; }
  .news-item { grid-template-columns: minmax(0, 3fr) minmax(0, 9fr); }
  .news-item__cat, .news-item__arrow { display: none; }
  .global-row { grid-template-columns: 1fr; gap: 0.6rem; }
  .global-row__num { text-align: left; }
  .header__time { display: none; }
}

@media (max-width: 600px) {
  .hero__title { font-size: clamp(2.6rem, 13.5vw, 4rem); }
  .hero__coord { display: none; }
  .menu__cn { font-size: clamp(1.8rem, 5.5vh, 2.6rem); }
  .menu__footer { flex-direction: column; gap: 1.5rem; }
  .about__stats { grid-template-columns: 1fr; }
  .contact__info { flex-direction: column; gap: 1.5rem; align-items: center; }
  .footer__top { flex-direction: column; }
}

/* 弱动效偏好 */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}