/* =========================================================
   Morrow Logic — sections.css
   各 section 布局与 Hero 背景
   ========================================================= */

.section{padding-block:var(--section-y)}
.section--alt{
  background:
    linear-gradient(180deg,transparent,rgba(79,141,255,.04) 50%,transparent);
  position:relative;
}
.section__head{max-width:760px;margin:0 auto clamp(40px,5vw,72px);text-align:center}
.section__head .eyebrow{justify-content:center}
.section__title{font-size:clamp(1.8rem,3vw,2.6rem);margin-top:14px}
.section__lead{margin-top:14px;color:var(--text-soft);font-size:clamp(1rem,1.2vw,1.1rem)}

/* ---- HERO ---- */
.hero{position:relative;overflow:hidden;padding-block:clamp(120px,16vh,200px) clamp(80px,10vw,140px)}
.hero__inner{position:relative;z-index:2;max-width:860px;text-align:center;margin-inline:auto}
.hero__title{font-size:clamp(2.2rem,5vw,3.8rem);margin-top:18px;letter-spacing:-.02em}
.hero__lead{margin-top:22px;color:var(--text-soft);font-size:clamp(1rem,1.3vw,1.15rem)}
.hero__cta{display:flex;justify-content:center;gap:14px;margin-top:32px;flex-wrap:wrap}
.hero__trust{
  margin-top:36px;display:flex;gap:18px;justify-content:center;flex-wrap:wrap;
  color:var(--text-mute);font-size:.88rem;
}
.hero__trust li{
  position:relative;padding-left:18px;
}
.hero__trust li::before{
  content:"";position:absolute;left:0;top:.55em;width:8px;height:8px;border-radius:2px;
  background:var(--grad-1);transform:rotate(45deg);
}

.hero__bg{position:absolute;inset:0;z-index:0;pointer-events:none}
.hero__grid{
  position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(79,141,255,.08) 1px,transparent 1px),
    linear-gradient(90deg,rgba(79,141,255,.08) 1px,transparent 1px);
  background-size:64px 64px;
  mask-image:radial-gradient(ellipse 80% 60% at 50% 30%,#000 30%,transparent 80%);
  -webkit-mask-image:radial-gradient(ellipse 80% 60% at 50% 30%,#000 30%,transparent 80%);
}
.hero__glow{position:absolute;border-radius:50%;filter:blur(80px);opacity:.55}
.hero__glow--a{
  width:520px;height:520px;left:-120px;top:-80px;
  background:radial-gradient(circle,rgba(79,141,255,.55),transparent 70%);
  animation:float 14s ease-in-out infinite alternate;
}
.hero__glow--b{
  width:600px;height:600px;right:-160px;top:-40px;
  background:radial-gradient(circle,rgba(139,92,246,.5),transparent 70%);
  animation:float 18s ease-in-out infinite alternate-reverse;
}
.hero__canvas{position:absolute;inset:0;width:100%;height:100%;opacity:.6}
@keyframes float{
  from{transform:translate(0,0)}
  to{transform:translate(40px,30px)}
}

/* ---- STATS / VALUE PROPS ---- */
.stats{padding-block:clamp(48px,6vw,80px);border-block:1px solid var(--line);background:rgba(6,10,24,.4)}
.stats__grid{display:grid;grid-template-columns:repeat(4,1fr);gap:32px;text-align:center}
.stat__num{
  font-family:var(--font-mono);
  font-size:clamp(2rem,3.4vw,2.8rem);font-weight:700;letter-spacing:-.02em;
  background:var(--grad-text);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.stat__label{margin-top:8px;color:var(--text-soft);font-size:.92rem}

/* 能力承诺卡片（替代数字） */
.stat--prop{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;
  padding:18px 12px;
  border-radius:14px;
  background:linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.01));
  border:1px solid var(--line);
  transition:transform .25s ease,border-color .25s ease,background .25s ease;
}
.stat--prop:hover{
  transform:translateY(-3px);
  border-color:rgba(34,227,196,.4);
  background:linear-gradient(180deg,rgba(34,227,196,.06),rgba(34,227,196,.02));
}
.stat__icon{
  display:inline-flex;align-items:center;justify-content:center;
  width:32px;height:32px;
  border-radius:50%;
  background:rgba(34,227,196,.12);
  color:var(--brand-2);
}
.stat__icon svg{width:18px;height:18px}
.stat--prop .stat__label{margin-top:0;font-size:.95rem;font-weight:600;color:#fff;letter-spacing:.02em}

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

/* ---- CAPABILITIES ---- */
.caps__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.cap{
  position:relative;padding:24px;border-radius:var(--r-md);
  background:linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.01));
  border:1px solid var(--line);
  transition:transform var(--t-med) var(--ease),border-color var(--t-med) var(--ease);
}
.cap:hover{transform:translateY(-4px);border-color:var(--line-2)}
.cap__no{
  font-family:var(--font-mono);font-size:.8rem;color:var(--brand-2);
  letter-spacing:.18em;margin-bottom:8px;
}
.cap h4{font-size:1.05rem;margin-bottom:8px}
.cap p{color:var(--text-soft);font-size:.92rem}

/* ---- SOLUTIONS ---- */
.sols__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.sol{
  display:block;padding:26px;border-radius:var(--r-md);
  background:linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.01));
  border:1px solid var(--line);
  transition:transform var(--t-med) var(--ease),border-color var(--t-med) var(--ease),background var(--t-med) var(--ease);
}
.sol:hover{transform:translateY(-4px);border-color:rgba(34,227,196,.4);background:linear-gradient(180deg,rgba(34,227,196,.08),rgba(79,141,255,.04))}
.sol__tag{
  display:inline-block;font-family:var(--font-mono);font-size:.72rem;letter-spacing:.16em;
  color:var(--brand-2);padding:.25em .6em;border:1px solid var(--line-2);border-radius:999px;
}
.sol h4{margin:14px 0 8px;font-size:1.1rem}
.sol p{color:var(--text-soft);font-size:.92rem}

/* ---- PROCESS ---- */
.proc{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;counter-reset:step}
.proc__step{
  position:relative;padding:24px;border-radius:var(--r-md);
  background:linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.01));
  border:1px solid var(--line);
  transition:border-color var(--t-med) var(--ease);
}
.proc__step:hover{border-color:rgba(79,141,255,.4)}
.proc__step::after{
  content:"";position:absolute;left:100%;top:50%;width:16px;height:1px;background:var(--line-2);
  transform:translateY(-.5px);
}
.proc__step:last-child::after{display:none}
.proc__no{
  display:inline-block;font-family:var(--font-mono);font-size:.78rem;color:var(--brand-2);
  letter-spacing:.18em;margin-bottom:8px;
}
.proc__step h4{font-size:1.05rem;margin-bottom:6px}
.proc__step p{color:var(--text-soft);font-size:.92rem}

/* ---- TECH ---- */
.tech__group{margin-top:28px}
.tech__group:first-of-type{margin-top:0}
.tech__group h5{
  font-size:.82rem;letter-spacing:.16em;text-transform:uppercase;color:var(--text-soft);
  margin-bottom:12px;font-weight:600;
}
.tech__list{display:flex;flex-wrap:wrap;gap:8px}
.tech__list li{
  padding:.5em 1em;border-radius:999px;
  background:var(--surface);border:1px solid var(--line);
  font-size:.9rem;color:var(--text-soft);
  transition:color var(--t-fast) var(--ease),border-color var(--t-fast) var(--ease),background var(--t-fast) var(--ease);
}
.tech__list li:hover{color:#fff;border-color:rgba(34,227,196,.4);background:rgba(34,227,196,.08)}

/* ---- CASES ---- */
.cases__grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.case{
  padding:28px;border-radius:var(--r-lg);
  background:
    radial-gradient(400px 200px at 80% 0%,rgba(139,92,246,.18),transparent 60%),
    linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.01));
  border:1px solid var(--line);
  transition:transform var(--t-med) var(--ease),border-color var(--t-med) var(--ease);
  display:block;color:inherit;text-decoration:none;
}
.case:hover{transform:translateY(-6px);border-color:rgba(139,92,246,.4)}
.case__link{
  display:inline-flex;align-items:center;gap:6px;
  margin-top:14px;
  font-size:.85rem;font-weight:600;
  color:var(--brand-1);
  transition:gap .2s ease;
}
.case:hover .case__link{gap:10px}
.case__metric{
  display:flex;align-items:baseline;gap:10px;margin-bottom:14px;
  font-family:var(--font-mono);
}
.case__metric strong{
  font-size:2rem;font-weight:700;
  background:var(--grad-text);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.case__metric span{color:var(--text-mute);font-size:.82rem}
.case h4{font-size:1.1rem;margin-bottom:10px}
.case p{color:var(--text-soft);font-size:.92rem;margin-bottom:14px}
.case__tags{display:flex;flex-wrap:wrap;gap:6px}
.case__tags span{
  font-size:.78rem;padding:.25em .7em;border-radius:999px;
  background:var(--surface);border:1px solid var(--line);color:var(--text-mute);
}

/* ---- CREDENTIALS ---- */
.cred__grid{display:grid;grid-template-columns:repeat(6,1fr);gap:14px}
.cred{
  padding:22px 18px;border-radius:var(--r-md);text-align:center;
  background:linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.01));
  border:1px solid var(--line);
  transition:transform var(--t-med) var(--ease),border-color var(--t-med) var(--ease);
}
.cred:hover{transform:translateY(-4px);border-color:rgba(34,227,196,.4)}
.cred strong{
  display:block;font-family:var(--font-mono);
  font-size:1.1rem;font-weight:700;color:var(--text);
  margin-bottom:6px;
}
.cred span{font-size:.78rem;color:var(--text-mute)}

/* ---- ABOUT ---- */
.about__grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.about__copy p{color:var(--text-soft);margin-top:16px;font-size:1rem}
.about__values{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.value{
  padding:22px;border-radius:var(--r-md);
  background:linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.01));
  border:1px solid var(--line);
}
.value h5{font-size:1rem;margin-bottom:8px;color:var(--brand-2)}
.value p{color:var(--text-soft);font-size:.9rem}

/* ---- CTA ---- */
.cta{padding-block:clamp(60px,8vw,100px)}
.cta__inner{
  text-align:center;padding:clamp(40px,6vw,72px);
  border-radius:var(--r-xl);
  background:
    radial-gradient(600px 300px at 20% 0%,rgba(34,227,196,.18),transparent 60%),
    radial-gradient(600px 300px at 100% 100%,rgba(139,92,246,.2),transparent 60%),
    linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.01));
  border:1px solid var(--line-2);
  position:relative;overflow:hidden;
}
.cta__inner::before{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(rgba(79,141,255,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(79,141,255,.05) 1px,transparent 1px);
  background-size:32px 32px;
  mask-image:radial-gradient(ellipse 60% 60% at 50% 50%,#000 30%,transparent 80%);
  -webkit-mask-image:radial-gradient(ellipse 60% 60% at 50% 50%,#000 30%,transparent 80%);
  pointer-events:none;
}
.cta h2{position:relative;font-size:clamp(1.6rem,2.6vw,2.2rem)}
.cta p{position:relative;margin-top:14px;color:var(--text-soft);max-width:620px;margin-inline:auto}
.cta .btn{position:relative;margin-top:28px}

/* ---- CONTACT ---- */
.contact__grid{display:grid;grid-template-columns:1fr 1.2fr;gap:48px;align-items:start}
.contact__list{display:grid;gap:14px;margin-top:28px}
.contact__list li{
  display:grid;grid-template-columns:120px 1fr;gap:14px;
  padding:14px 0;border-top:1px solid var(--line);
}
.contact__list li:last-child{border-bottom:1px solid var(--line)}
.contact__list li > span:first-child{color:var(--text-mute);font-size:.85rem;letter-spacing:.06em}
.contact__list a{color:var(--text);transition:color var(--t-fast) var(--ease)}
.contact__list a:hover{color:var(--brand-2)}
.contact__list li > span:last-child{color:var(--text-soft)}

/* =========================================================
   响应式
   ========================================================= */
@media (max-width:980px){
  .services__grid,.caps__grid,.sols__grid,.cases__grid{grid-template-columns:repeat(2,1fr)}
  .cred__grid{grid-template-columns:repeat(3,1fr)}
  .proc{grid-template-columns:repeat(3,1fr)}
  .proc__step:nth-child(3)::after{display:none}
  .footer__grid{grid-template-columns:repeat(3,1fr)}
  .footer__brand{grid-column:1/-1}
  .about__grid,.contact__grid{grid-template-columns:1fr;gap:32px}
  .stats__grid{grid-template-columns:repeat(2,1fr);gap:24px}
}
@media (max-width:720px){
  .nav__inner{grid-template-columns:auto auto;row-gap:8px}
  .nav__menu{
    grid-column:1/-1;
    background:rgba(6,10,24,.96);
    backdrop-filter:blur(14px);
    border-bottom:1px solid var(--line);
    padding:8px 12px;
    gap:2px;
    justify-content:space-between;
    overflow-x:auto;
  }
  .nav__menu a{padding:.55em .7em;border-radius:999px;font-size:.82rem;white-space:nowrap;flex:0 0 auto}
  .nav__menu a.is-active{background:var(--surface-strong)}
  .nav__menu a.is-active::after{display:none}
  .nav__burger{display:none}
  .nav__tools .btn--primary{display:none}
  .services__grid,.caps__grid,.sols__grid,.cases__grid{grid-template-columns:1fr}
  .stats__grid{grid-template-columns:repeat(2,1fr)}
  .cred__grid{grid-template-columns:repeat(2,1fr)}
  .proc{grid-template-columns:1fr 1fr}
  .proc__step::after{display:none}
  .contact__form{grid-template-columns:1fr}
  .about__values{grid-template-columns:1fr}
  .footer__grid{grid-template-columns:1fr 1fr;gap:24px}
  .footer__bottom{flex-direction:column;gap:8px;text-align:center}
}
@media (max-width:420px){
  .stats__grid{grid-template-columns:1fr 1fr}
  .cred__grid{grid-template-columns:1fr 1fr}
  .hero__trust{font-size:.8rem;gap:12px}
  .footer__grid{grid-template-columns:1fr}
}

/* ========== Hero 大标题字体升级（科技感） ========== */
.hero__title {
  font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, -apple-system, sans-serif;
  font-weight: 800;
  letter-spacing: 0.02em;
  line-height: 1.1;
  font-size: clamp(3rem, 7vw, 5.6rem);
}
.hero__title .grad-text {
  font-family: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", system-ui, -apple-system, sans-serif;
  font-weight: 800;
  letter-spacing: 0.04em;
}

/* 英文版大标题更醒目 */
html[data-locale="en"] .hero__title {
  font-family: "Space Grotesk", "Inter", system-ui, sans-serif;
  font-weight: 700;
  letter-spacing: -0.035em;
  font-size: clamp(2.8rem, 6.5vw, 5.2rem);
}
html[data-locale="en"] .hero__title .grad-text {
  font-family: "Space Grotesk", "JetBrains Mono", monospace;
  font-weight: 700;
  letter-spacing: -0.03em;
}