/* ==========================================================================
   Transcend AI — 公司官网样式
   品牌色取自 logo：navy #071736 / #0b2a63，蓝 #1955e9 / #2254d9
   ========================================================================== */

:root{
  --navy:#071736;
  --navy-600:#0b2450;
  --navy-500:#0b2a63;
  --blue:#1955e9;
  --blue-600:#2254d9;
  --blue-100:#e9f0ff;
  --blue-050:#f4f8ff;

  --ink:#0a1730;
  --body:#4b5a75;
  --muted:#8394ad;

  --line:rgba(11,32,70,.10);
  --line-2:rgba(11,32,70,.16);

  --bg:#ffffff;
  --bg-soft:#f7faff;

  --r-sm:10px;
  --r:16px;
  --r-lg:24px;
  --r-xl:32px;

  --sh-sm:0 1px 2px rgba(8,22,52,.05), 0 6px 20px -10px rgba(8,22,52,.16);
  --sh:0 14px 40px -18px rgba(8,22,52,.28), 0 2px 6px rgba(8,22,52,.04);
  --sh-lg:0 40px 90px -40px rgba(10,40,100,.45);

  --container:1180px;
  --nav-h:74px;

  --ease:cubic-bezier(.22,.68,.26,1);
  --font:-apple-system,BlinkMacSystemFont,"SF Pro SC","SF Pro Text","PingFang SC",
         "Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Helvetica,Arial,sans-serif;
}

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

html{scroll-behavior:smooth;scroll-padding-top:calc(var(--nav-h) + 16px);-webkit-text-size-adjust:100%}

body{
  margin:0;
  font-family:var(--font);
  color:var(--body);
  background:var(--bg);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  overflow-x:hidden;
}

img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{color:var(--ink);margin:0;line-height:1.24;letter-spacing:-.02em;font-weight:700}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;color:inherit}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 28px}

/* ---------- 滚动进度条 ---------- */
.progress{
  position:fixed;top:0;left:0;height:2px;width:0;z-index:120;
  background:linear-gradient(90deg,var(--blue),#5f8dff);
  transition:width .1s linear;
}

/* ---------- 通用文字 ---------- */
.eyebrow{
  font-size:12px;font-weight:700;letter-spacing:.22em;color:var(--blue);
  text-transform:uppercase;margin-bottom:14px;display:flex;align-items:center;gap:10px;
}
.eyebrow::before{content:"";width:22px;height:1.5px;background:var(--blue);border-radius:2px;opacity:.7}
.eyebrow--light{color:#8fb0ff}
.eyebrow--light::before{background:#8fb0ff}

.grad{
  background:linear-gradient(100deg,var(--blue) 0%,#4d7cff 55%,#2b3fb8 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}

.lead{font-size:17.5px;color:var(--body);max-width:580px}
.lead strong{color:var(--ink);font-weight:600}

/* ---------- 按钮 ---------- */
.btn{
  --bh:52px;
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:var(--bh);padding:0 26px;border-radius:100px;border:1px solid transparent;
  font-size:15px;font-weight:600;letter-spacing:.01em;cursor:pointer;
  transition:transform .25s var(--ease),box-shadow .25s var(--ease),background .2s,color .2s,border-color .2s;
  white-space:nowrap;
}
.btn--sm{--bh:42px;padding:0 20px;font-size:14px}
.btn--block{width:100%}
.btn--primary{
  background:linear-gradient(180deg,#2260f0,var(--blue) 55%,#1546c9);
  color:#fff;
  box-shadow:0 10px 24px -10px rgba(25,85,233,.65),inset 0 1px 0 rgba(255,255,255,.28);
}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 18px 34px -12px rgba(25,85,233,.7),inset 0 1px 0 rgba(255,255,255,.3)}
.btn--ghost{background:#fff;border-color:var(--line-2);color:var(--ink);box-shadow:var(--sh-sm)}
.btn--ghost:hover{transform:translateY(-2px);border-color:rgba(25,85,233,.45);color:var(--blue)}
.btn:active{transform:translateY(0)}

/* ---------- 滚动入场（放在组件之前，避免与 :hover 的 transform 冲突） ---------- */
.reveal{
  opacity:0;transform:translateY(20px);
  transition:opacity .8s var(--ease),transform .8s var(--ease);
  transition-delay:var(--d,0s);
}
.reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  *{animation:none !important}
  html{scroll-behavior:auto}
}

/* ==========================================================================
   顶栏
   ========================================================================== */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:100;height:var(--nav-h);
  transition:background .3s var(--ease),box-shadow .3s var(--ease),border-color .3s;
  border-bottom:1px solid transparent;
}
.nav.is-stuck{
  background:rgba(255,255,255,.82);
  -webkit-backdrop-filter:saturate(180%) blur(18px);
  backdrop-filter:saturate(180%) blur(18px);
  border-bottom-color:var(--line);
  box-shadow:0 8px 30px -22px rgba(8,22,52,.5);
}
.nav__inner{height:100%;display:flex;align-items:center;justify-content:space-between;gap:24px}

.brand{display:flex;align-items:center;gap:10px}
.brand__mark{width:34px;height:29px;flex:none}
.brand__word{
  font-size:16.5px;font-weight:800;letter-spacing:.14em;color:var(--ink);
  display:flex;align-items:baseline;gap:5px;
}
.brand__ai{color:var(--blue);letter-spacing:.08em}

.nav__links{display:flex;align-items:center;gap:34px}
.nav__links a{
  font-size:14.5px;font-weight:500;color:#3c4b66;position:relative;padding:6px 0;
  transition:color .2s;
}
.nav__links a::after{
  content:"";position:absolute;left:0;right:100%;bottom:0;height:1.5px;
  background:var(--blue);border-radius:2px;transition:right .3s var(--ease);
}
.nav__links a:hover{color:var(--ink)}
.nav__links a:hover::after,.nav__links a.is-active::after{right:0}
.nav__links a.is-active{color:var(--ink);font-weight:600}

.nav__actions{display:flex;align-items:center;gap:12px}

.nav__toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);background:#fff;
  border-radius:12px;cursor:pointer;padding:0;position:relative;
}
.nav__toggle span{
  position:absolute;left:12px;right:12px;height:1.6px;background:var(--ink);border-radius:2px;
  transition:transform .3s var(--ease),opacity .2s;
}
.nav__toggle span:nth-child(1){top:15px}
.nav__toggle span:nth-child(2){top:20.5px}
.nav__toggle span:nth-child(3){top:26px}
.nav__toggle.is-open span:nth-child(1){transform:translateY(5.5px) rotate(45deg)}
.nav__toggle.is-open span:nth-child(2){opacity:0}
.nav__toggle.is-open span:nth-child(3){transform:translateY(-5.5px) rotate(-45deg)}

.mobile{
  position:fixed;inset:var(--nav-h) 0 auto 0;z-index:99;
  background:rgba(255,255,255,.97);
  -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line);
  padding:24px 28px 30px;
  display:flex;flex-direction:column;gap:20px;
  box-shadow:0 30px 60px -34px rgba(8,22,52,.5);
  animation:slideDown .3s var(--ease);
}
@keyframes slideDown{from{opacity:0;transform:translateY(-10px)}to{opacity:1;transform:none}}
.mobile[hidden]{display:none}
.mobile__links{display:flex;flex-direction:column}
.mobile__links a{
  padding:14px 2px;font-size:17px;font-weight:600;color:var(--ink);
  border-bottom:1px solid var(--line);
}
.mobile__mail{font-size:14px;color:var(--muted)}

/* ==========================================================================
   首屏
   ========================================================================== */
.hero{position:relative;padding:calc(var(--nav-h) + 84px) 0 0;overflow:hidden}
.hero__bg{position:absolute;inset:0;z-index:0;pointer-events:none}
.grid-lines{
  position:absolute;inset:0;
  background-image:
    linear-gradient(to right,rgba(11,32,70,.055) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(11,32,70,.055) 1px,transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:radial-gradient(ellipse 80% 62% at 50% 26%,#000 30%,transparent 78%);
  mask-image:radial-gradient(ellipse 80% 62% at 50% 26%,#000 30%,transparent 78%);
}
.orb{position:absolute;border-radius:50%;filter:blur(70px);opacity:.5}
.orb--1{width:520px;height:520px;right:-120px;top:-120px;background:radial-gradient(circle at 30% 30%,rgba(25,85,233,.42),transparent 65%);animation:float 16s ease-in-out infinite}
.orb--2{width:420px;height:420px;left:-140px;top:120px;background:radial-gradient(circle at 60% 40%,rgba(11,42,99,.30),transparent 66%);animation:float 20s ease-in-out infinite reverse}
@keyframes float{0%,100%{transform:translate3d(0,0,0)}50%{transform:translate3d(0,-26px,0)}}

.hero__inner{
  position:relative;z-index:1;
  display:grid;grid-template-columns:1.06fr .94fr;gap:60px;align-items:center;
  padding-bottom:64px;
}
.hero h1{
  font-size:clamp(38px,4.6vw,58px);line-height:1.14;letter-spacing:-.035em;
  margin-bottom:22px;font-weight:800;
}
.hero__cta{display:flex;flex-wrap:wrap;gap:14px;margin:32px 0 26px}
.hero__points{display:flex;flex-wrap:wrap;gap:10px 22px}
.hero__points li{
  font-size:13.5px;color:#5a6a86;display:flex;align-items:center;gap:8px;
}
.hero__points li::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--blue);
  box-shadow:0 0 0 3px rgba(25,85,233,.14);flex:none;
}

/* 主视觉卡片 */
.hero__visual{position:relative}
.orb-card{
  position:relative;aspect-ratio:1/1;max-width:430px;margin-left:auto;
  border-radius:var(--r-xl);
  background:
    radial-gradient(120% 110% at 18% 8%,#ffffff 0%,#f2f7ff 46%,#e6efff 100%);
  border:1px solid rgba(255,255,255,.9);
  box-shadow:var(--sh-lg),inset 0 1px 0 #fff;
  display:grid;place-items:center;overflow:hidden;
}
.orb-card__glow{
  position:absolute;width:74%;height:74%;border-radius:50%;
  background:radial-gradient(circle,rgba(25,85,233,.26),rgba(25,85,233,0) 66%);
  filter:blur(24px);
}
.orb-card__mark{
  position:relative;width:52%;height:auto;z-index:2;
  filter:drop-shadow(0 22px 34px rgba(7,23,54,.28));
  animation:markFloat 7s ease-in-out infinite;
}
@keyframes markFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}
.ring{
  position:absolute;border-radius:50%;border:1px dashed rgba(25,85,233,.30);
  animation:spin 34s linear infinite;
}
.ring--1{width:66%;height:66%}
.ring--2{width:84%;height:84%;border-style:solid;border-color:rgba(25,85,233,.13);animation-duration:46s;animation-direction:reverse}
.ring--3{width:94%;height:94%;border-color:rgba(11,32,70,.08);animation-duration:60s}
@keyframes spin{to{transform:rotate(360deg)}}

.tag{
  position:absolute;z-index:3;padding:7px 14px;border-radius:100px;
  background:rgba(255,255,255,.94);border:1px solid rgba(25,85,233,.2);
  font-size:12.5px;font-weight:600;color:var(--navy-500);
  box-shadow:0 10px 24px -14px rgba(8,22,52,.42);white-space:nowrap;
}
.tag--a{top:14%;left:6%}
.tag--b{bottom:20%;right:5%}
.tag--c{bottom:7%;left:12%}

.float-card{
  position:absolute;z-index:4;display:flex;gap:11px;align-items:flex-start;
  padding:13px 17px;border-radius:14px;background:rgba(255,255,255,.96);
  border:1px solid var(--line);box-shadow:var(--sh);
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
  animation:cardFloat 9s ease-in-out infinite;
}
.float-card strong{display:block;font-size:13.5px;color:var(--ink);line-height:1.5}
.float-card small{display:block;font-size:11.5px;color:var(--muted);line-height:1.5;margin-top:2px}
.float-card--a{left:-8%;bottom:16%}
.float-card--b{right:-6%;top:11%;animation-delay:-4.5s}
@keyframes cardFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}
.dot{
  width:9px;height:9px;border-radius:50%;background:#12b886;margin-top:6px;flex:none;
  box-shadow:0 0 0 4px rgba(18,184,134,.16);
}
.dot--blue{background:var(--blue);box-shadow:0 0 0 4px rgba(25,85,233,.16)}

/* 能力滚动条 */
.strip{
  position:relative;z-index:1;
  display:flex;align-items:center;gap:26px;
  padding:20px 0 26px;border-top:1px solid var(--line);
  overflow:hidden;
}
.strip__label{
  font-size:12px;font-weight:700;letter-spacing:.16em;color:var(--muted);
  flex:none;text-transform:uppercase;
}
.marquee{overflow:hidden;flex:1;min-width:0;
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);
  mask-image:linear-gradient(90deg,transparent,#000 8%,#000 92%,transparent);
}
.marquee__track{display:flex;align-items:center;gap:24px;width:max-content;animation:marquee 46s linear infinite}
.marquee__track span{font-size:14px;font-weight:500;color:#63748f;white-space:nowrap}
.marquee__track i{width:5px;height:5px;border-radius:50%;background:rgba(25,85,233,.34);flex:none}
.marquee:hover .marquee__track{animation-play-state:paused}
@keyframes marquee{to{transform:translateX(-50%)}}

/* ==========================================================================
   通用区块
   ========================================================================== */
.section{padding:110px 0;position:relative}
.section--soft{background:var(--bg-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section__head{max-width:720px;margin-bottom:56px}
.section__head--center{max-width:640px;margin:0 auto 56px;text-align:center}
.section__head--center .eyebrow{justify-content:center}
.section h2{font-size:clamp(28px,3.2vw,40px);letter-spacing:-.03em}
.section__sub{margin-top:18px;font-size:16.5px;color:var(--body)}
.disclaimer{font-size:12.5px;color:var(--muted);margin-top:22px}

/* ---------- 服务卡片 ---------- */
.cards{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.card{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:32px 26px 30px;overflow:hidden;
  transition:transform .35s var(--ease),box-shadow .35s var(--ease),border-color .3s;
}
.card::before{
  content:"";position:absolute;inset:0 0 auto 0;height:2px;
  background:linear-gradient(90deg,var(--blue),#7ba2ff);
  transform:scaleX(0);transform-origin:left;transition:transform .45s var(--ease);
}
.card:hover{transform:translateY(-6px);box-shadow:var(--sh);border-color:rgba(25,85,233,.22)}
.card:hover::before{transform:scaleX(1)}
.card__icon{
  width:46px;height:46px;border-radius:13px;display:grid;place-items:center;
  background:var(--blue-050);border:1px solid rgba(25,85,233,.16);color:var(--blue);
  margin-bottom:20px;transition:background .3s,color .3s;
}
.card__icon svg{width:23px;height:23px}
.card:hover .card__icon{background:var(--blue);color:#fff}
.card h3{font-size:19px;margin-bottom:12px}
.card p{font-size:14.5px;line-height:1.8;color:var(--body)}
.card__list{margin-top:18px;display:flex;flex-direction:column;gap:9px}
.card__list li{
  font-size:13.5px;color:#5d6e8a;padding-left:18px;position:relative;line-height:1.6;
}
.card__list li::before{
  content:"";position:absolute;left:2px;top:9px;width:6px;height:6px;border-radius:2px;
  background:rgba(25,85,233,.32);
}
.card__tag{
  display:inline-block;margin-top:22px;font-size:11px;font-weight:700;letter-spacing:.16em;
  color:var(--muted);text-transform:uppercase;
}

/* ---------- 方法论步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;counter-reset:s}
.step{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  padding:30px 26px 28px;transition:transform .35s var(--ease),box-shadow .35s var(--ease);
}
.step:hover{transform:translateY(-5px);box-shadow:var(--sh)}
.step__num{
  font-size:12px;font-weight:800;letter-spacing:.14em;color:var(--blue);
  display:inline-block;margin-bottom:14px;
}
.step h3{font-size:19px;margin-bottom:10px}
.step p{font-size:14.5px;line-height:1.8}
.step small{
  display:block;margin-top:16px;padding-top:14px;border-top:1px dashed var(--line-2);
  font-size:12.5px;color:var(--muted);
}
.step:not(:last-child)::after{
  content:"";position:absolute;top:44px;right:-14px;width:8px;height:8px;
  border-top:1.5px solid var(--line-2);border-right:1.5px solid var(--line-2);
  transform:rotate(45deg);
}

/* ---------- 场景 tabs ---------- */
.tabs{background:#fff;border:1px solid var(--line);border-radius:var(--r-xl);overflow:hidden;box-shadow:var(--sh-sm)}
.tabs__nav{display:flex;gap:6px;padding:14px;background:var(--blue-050);border-bottom:1px solid var(--line);overflow-x:auto}
.tabs__btn{
  flex:1;min-width:max-content;height:44px;padding:0 20px;border:1px solid transparent;
  background:transparent;border-radius:11px;font-size:14.5px;font-weight:600;color:#5a6a86;
  cursor:pointer;transition:all .25s var(--ease);white-space:nowrap;
}
.tabs__btn:hover{color:var(--ink)}
.tabs__btn.is-active{background:#fff;color:var(--blue);border-color:rgba(25,85,233,.22);box-shadow:var(--sh-sm)}
.tabs__panel{display:none;grid-template-columns:1.05fr .95fr;gap:48px;padding:46px 44px;align-items:center}
.tabs__panel.is-active{display:grid;animation:fadeUp .45s var(--ease)}
@keyframes fadeUp{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}
.panel__text h3{font-size:24px;margin-bottom:16px;letter-spacing:-.025em}
.panel__text p{font-size:15px;line-height:1.85}
.panel__list{margin-top:22px;display:flex;flex-direction:column;gap:10px}
.panel__list li{font-size:14px;color:#5d6e8a;padding-left:24px;position:relative}
.panel__list li::before{
  content:"";position:absolute;left:0;top:7px;width:13px;height:13px;border-radius:50%;
  background:var(--blue-100);
}
.panel__list li::after{
  content:"";position:absolute;left:4.5px;top:10px;width:4px;height:4px;border-radius:50%;
  background:var(--blue);
}
.panel__visual{background:linear-gradient(150deg,#f7faff,#eaf1ff);border:1px solid rgba(25,85,233,.14);border-radius:var(--r-lg);padding:28px 26px}
.mini__row{display:flex;justify-content:space-between;align-items:baseline;font-size:13.5px;color:#5d6e8a;margin-bottom:9px}
.mini__row b{color:var(--ink);font-size:14.5px}
.bar{height:6px;border-radius:100px;background:rgba(11,32,70,.09);overflow:hidden;margin-bottom:22px}
.bar i{display:block;height:100%;border-radius:100px;background:linear-gradient(90deg,var(--blue),#6f95ff);width:0;transition:width 1.1s var(--ease)}
.mini__row:last-of-type + .bar{margin-bottom:0}

/* ---------- Why us ---------- */
.why{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:start}
.why h2{font-size:clamp(28px,3.2vw,38px)}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:38px;padding-top:32px;border-top:1px solid var(--line-2)}
.stat b{
  display:block;font-size:34px;font-weight:800;letter-spacing:-.04em;color:var(--navy);
  line-height:1.1;font-variant-numeric:tabular-nums;
}
.stat b::after{content:attr(data-suffix);color:var(--blue)}
.stat span{font-size:13px;color:var(--muted);display:block;margin-top:6px}
.stats-note{font-size:11.5px;color:#a3b0c4;margin-top:14px}

.why__list{display:flex;flex-direction:column;gap:14px}
.why__list li{
  display:flex;gap:18px;background:#fff;border:1px solid var(--line);border-radius:var(--r);
  padding:22px 24px;transition:transform .3s var(--ease),box-shadow .3s var(--ease),border-color .3s;
}
.why__list li:hover{transform:translateX(5px);box-shadow:var(--sh-sm);border-color:rgba(25,85,233,.2)}
.why__ico{
  width:40px;height:40px;flex:none;border-radius:11px;display:grid;place-items:center;
  background:var(--blue-050);color:var(--blue);border:1px solid rgba(25,85,233,.14);
}
.why__ico svg{width:19px;height:19px}
.why__list h3{font-size:16.5px;margin-bottom:6px}
.why__list p{font-size:14px;line-height:1.75}

/* ---------- 关于 ---------- */
.about{display:grid;grid-template-columns:.86fr 1.14fr;gap:70px;align-items:center}
.about__visual{
  background:linear-gradient(160deg,#fff,#eef4ff);
  border:1px solid var(--line);border-radius:var(--r-xl);padding:44px 36px;text-align:center;
  box-shadow:var(--sh-sm);position:relative;overflow:hidden;
}
.about__visual::after{
  content:"";position:absolute;width:280px;height:280px;border-radius:50%;right:-90px;bottom:-110px;
  background:radial-gradient(circle,rgba(25,85,233,.16),transparent 68%);
}
.about__logo{display:flex;justify-content:center;position:relative;z-index:1}
.about__logo img{width:190px;height:auto}
.about__slogan{
  margin-top:22px;font-size:14.5px;font-weight:600;color:var(--navy-500);
  position:relative;z-index:1;letter-spacing:.01em;
}
.about__copy h2{font-size:clamp(28px,3.2vw,38px);margin-bottom:22px}
.about__copy p{font-size:15.5px;line-height:1.9;margin-bottom:16px}
.values{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;margin-top:30px}
.value{background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:18px 18px 16px}
.value b{display:block;font-size:16px;color:var(--ink);margin-bottom:4px}
.value span{font-size:12.5px;color:var(--muted);line-height:1.6;display:block}

/* ---------- CTA / 联系 ---------- */
.section--cta{
  background:
    radial-gradient(90% 120% at 12% 0%,#123063 0%,transparent 55%),
    radial-gradient(80% 110% at 88% 100%,#0d2a63 0%,transparent 58%),
    linear-gradient(160deg,#071736,#05102a 62%,#040c1e);
  color:#c3d1ea;overflow:hidden;position:relative;
}
.section--cta::before{
  content:"";position:absolute;inset:0;
  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:56px 56px;
  -webkit-mask-image:radial-gradient(ellipse 70% 60% at 50% 40%,#000,transparent 76%);
  mask-image:radial-gradient(ellipse 70% 60% at 50% 40%,#000,transparent 76%);
}
.cta{position:relative;z-index:1;display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:start}
.cta h2{color:#fff;font-size:clamp(30px,3.4vw,42px);margin-bottom:18px}
.cta__copy p{font-size:16px;color:#a9bcd9;max-width:480px}
.cta__info{margin-top:34px;display:flex;flex-direction:column;gap:2px}
.cta__info li{
  display:flex;gap:16px;align-items:baseline;padding:14px 0;border-bottom:1px solid rgba(255,255,255,.1);
  font-size:15px;
}
.cta__info span{width:52px;flex:none;font-size:12.5px;color:#6d84a8;letter-spacing:.06em}
.cta__info a{color:#fff;font-weight:600;border-bottom:1px solid transparent;transition:border-color .2s,color .2s}
.cta__info a:hover{color:#8fb0ff;border-bottom-color:#8fb0ff}
.cta__info em{font-style:normal;color:#d6e1f2}
.cta__note{margin-top:20px;font-size:13px;color:#7b90b3}

.form{
  background:rgba(255,255,255,.055);
  border:1px solid rgba(255,255,255,.14);
  border-radius:var(--r-xl);padding:34px 32px;
  -webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);
  display:grid;grid-template-columns:1fr 1fr;gap:18px;
  box-shadow:0 40px 80px -50px rgba(0,0,0,.8);
}
.field{display:flex;flex-direction:column;gap:8px}
.field--full{grid-column:1/-1}
.field label{font-size:12.5px;font-weight:600;color:#9db2d4;letter-spacing:.04em}
.field input,.field select,.field textarea{
  width:100%;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.16);
  border-radius:12px;padding:13px 15px;font:inherit;font-size:14.5px;color:#fff;
  transition:border-color .2s,background .2s,box-shadow .2s;outline:none;resize:vertical;
}
.field textarea{line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:#6d82a4}
.field select{appearance:none;-webkit-appearance:none;
  background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%239db2d4' stroke-width='2'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;background-size:16px;padding-right:40px;
}
.field select option{background:#0b2450;color:#fff}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:rgba(120,160,255,.7);background:rgba(255,255,255,.1);
  box-shadow:0 0 0 3px rgba(25,85,233,.22);
}
.field input.is-error,.field textarea.is-error{border-color:#ff7b7b;box-shadow:0 0 0 3px rgba(255,90,90,.18)}
.form__hint{font-size:12px;color:#7b90b3;margin-top:12px;line-height:1.6}
.form__hint.is-ok{color:#7ee0b8}

/* ---------- 页脚 ---------- */
.footer{background:#040c1e;color:#7d90b0;padding:64px 0 30px;border-top:1px solid rgba(255,255,255,.08)}
.footer__inner{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px}
.footer__brand img{width:104px;height:auto;background:#fff;border-radius:10px;padding:8px}
.footer__brand p{margin-top:16px;font-size:13.5px;line-height:1.7}
.footer__nav{display:flex;flex-direction:column;gap:11px}
.footer__nav h4{color:#fff;font-size:13.5px;letter-spacing:.04em;margin-bottom:6px}
.footer__nav a,.footer__nav span{font-size:13.5px;transition:color .2s}
.footer__nav a:hover{color:#8fb0ff}
.footer__bottom{
  display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap;
  padding-top:26px;border-top:1px solid rgba(255,255,255,.08);font-size:12.5px;
}
.footer__disc{color:#5c6e8c}

/* ==========================================================================
   响应式
   ========================================================================== */
@media (max-width:1080px){
  .cards{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .step:nth-child(2)::after{display:none}
  .why{grid-template-columns:1fr;gap:44px}
  .about{grid-template-columns:1fr;gap:44px}
  .cta{grid-template-columns:1fr;gap:44px}
  .footer__inner{grid-template-columns:1fr 1fr;gap:34px}
}

@media (max-width:900px){
  .nav__links{display:none}
  .nav__toggle{display:block}
  .hero__inner{grid-template-columns:1fr;gap:48px}
  .hero__visual{order:2}
  .orb-card{margin:0 auto}
  .float-card--a{left:0}
  .float-card--b{right:0}
  .tabs__panel{grid-template-columns:1fr;gap:32px;padding:34px 26px}
  .tabs__btn{flex:none}
}

@media (max-width:680px){
  :root{--nav-h:66px}
  .container{padding:0 20px}
  .section{padding:76px 0}
  .hero{padding-top:calc(var(--nav-h) + 52px)}
  .hero__cta .btn{width:100%}
  .cards{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .step::after{display:none}
  .stats{grid-template-columns:1fr 1fr;gap:22px}
  .values{grid-template-columns:1fr}
  .form{grid-template-columns:1fr;padding:26px 22px}
  .footer__inner{grid-template-columns:1fr;gap:30px}
  .strip{flex-direction:column;align-items:flex-start;gap:12px}
  .orb-card__mark{width:58%}
  .tag{font-size:11.5px;padding:6px 11px}
  .float-card{padding:11px 13px}
  .float-card small{display:none}
}