/* =========================================================
   ToyPal · 官网样式
   杭州纽爱软件有限公司
   色系：深墨紫底 + 紫→蓝紫渐变高光
   ========================================================= */

:root{
  /* ink */
  --ink:        #08040f;
  --ink-1:      #0d0719;
  --ink-2:      #140a24;
  --ink-3:      #1c1030;

  /* violet */
  --v-100:      #efe8ff;
  --v-200:      #ddd0ff;
  --v-300:      #bda4ff;
  --v-400:      #9c7bff;
  --v-500:      #8455f0;
  --v-600:      #6b39d6;
  --v-700:      #4f2596;

  /* accents */
  --blue:       #4f6bff;
  --sky:        #4fa8ff;

  /* paper */
  --paper:      #f8f6fc;
  --paper-1:    #f2eef9;
  --paper-2:    #ebe5f5;

  /* text */
  --text:       #17102a;
  --text-2:     #4a4260;
  --text-3:     #7c7590;
  --on-dark:    #f4f0ff;
  --on-dark-2:  #b9b0d4;
  --on-dark-3:  #867da4;

  --line:       rgba(23,16,42,.10);
  --line-d:     rgba(255,255,255,.10);

  --grad: linear-gradient(112deg, #bd6bea 0%, #8a63ff 44%, #6366f5 100%);
  --grad-soft: linear-gradient(112deg, #fdeaf3 0%, #f1e7ff 50%, #e8e4ff 100%);

  --r-xs: 10px;
  --r-sm: 14px;
  --r-md: 20px;
  --r-lg: 28px;
  --r-xl: 36px;

  --shadow-s: 0 2px 8px rgba(23,16,42,.05);
  --shadow-m: 0 18px 40px -22px rgba(60,26,120,.30);
  --shadow-l: 0 40px 90px -40px rgba(60,26,120,.42);
  --glow:     0 0 80px -10px rgba(132,85,240,.45);

  --wrap: 1220px;
  --pad: 28px;
  --hdr: 76px;

  --ease: cubic-bezier(.22,.68,.16,1);
  --ease-io: cubic-bezier(.65,.05,.36,1);

  --ff: "PingFang SC","HarmonyOS Sans SC","Hiragino Sans GB","Microsoft YaHei",
        system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",sans-serif;
  --ff-en: "Inter","SF Pro Display",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}

/* ------------------ reset ------------------ */
*,*::before,*::after{ box-sizing:border-box; }
html{ -webkit-text-size-adjust:100%; scroll-behavior:smooth; }
html.is-locked, html.is-locked body{ overflow:hidden; }
body{
  margin:0;
  font-family:var(--ff);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--ink);
  overflow-x:clip;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  font-feature-settings:"palt" 1;
}
img{ max-width:100%; display:block; height:auto; }
a{ color:inherit; text-decoration:none; }
button{ font:inherit; color:inherit; border:0; background:none; cursor:pointer; }
h1,h2,h3,h4,p,ul,ol,figure,dl,dd{ margin:0; }
ul,ol{ list-style:none; padding:0; }
.sprite{ position:absolute; width:0; height:0; overflow:hidden; }
::selection{ background:rgba(140,100,255,.28); color:#fff; }

.ico{ width:20px; height:20px; flex:none; fill:none; stroke:currentColor;
      stroke-width:1.7; stroke-linecap:round; stroke-linejoin:round; }

.skip{
  position:fixed; left:16px; top:-80px; z-index:999;
  background:#fff; color:var(--text); padding:12px 18px; border-radius:10px;
  transition:top .2s;
}
.skip:focus{ top:16px; }

.wrap{ width:100%; max-width:var(--wrap); margin-inline:auto; padding-inline:var(--pad); }

/* 锚点定位避开固定页头 */
section[id], div[id="top"]{ scroll-margin-top:88px; }

/* 键盘焦点 */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible{
  outline:2px solid var(--v-400);
  outline-offset:3px;
  border-radius:6px;
}

/* ------------------ type helpers ------------------ */
.kicker{
  font-family:var(--ff-en);
  font-size:12px; font-weight:600;
  letter-spacing:.20em;
  text-transform:uppercase;
  color:var(--v-600);
  margin-bottom:16px;
}
.kicker--light{ color:var(--v-300); }

.sec-title{
  font-size:clamp(28px,3.5vw,44px);
  line-height:1.24;
  font-weight:600;
  letter-spacing:-.01em;
}
.sec-title--light{ color:var(--on-dark); }

.sec-lead{
  font-size:16.5px;
  line-height:1.85;
  color:var(--text-2);
  max-width:52ch;
}
.sec-lead--light{ color:var(--on-dark-2); }

.sec-sub{
  margin-top:14px;
  color:var(--text-3);
  font-size:15px;
}

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

.br-m{ display:none; }

/* ------------------ buttons ------------------ */
.nw{ white-space:nowrap; }   /* 防止词组在行末被拆开 */
.btn{
  --b-bg:transparent;
  position:relative;
  display:inline-flex; align-items:center; justify-content:center; gap:10px;
  height:50px; padding:0 26px;
  border-radius:100px;
  font-size:15px; font-weight:500; letter-spacing:.01em;
  white-space:nowrap;
  transition:transform .35s var(--ease), box-shadow .35s var(--ease),
             background .3s, color .3s, border-color .3s;
  will-change:transform;
}
.btn .ico{ width:18px; height:18px; transition:transform .35s var(--ease); }
.btn:hover .ico{ transform:translateX(4px); }

.btn--grad{
  color:#fff;
  background:var(--grad);
  background-size:160% 100%;
  background-position:0% 50%;
  box-shadow:0 14px 34px -14px rgba(150,96,246,.72);
}
.btn--grad:hover{
  background-position:100% 50%;
  transform:translateY(-2px);
  box-shadow:0 22px 46px -16px rgba(150,96,246,.82);
}
.btn--glass{
  color:#fff;
  border:1px solid rgba(255,255,255,.22);
  background:rgba(255,255,255,.06);
  backdrop-filter:blur(10px);
}
.btn--glass:hover{ background:rgba(255,255,255,.12); transform:translateY(-2px); }
.btn--ghost{
  color:var(--text);
  border:1px solid var(--line);
  background:rgba(255,255,255,.6);
}
.btn--ghost:hover{ border-color:rgba(107,57,214,.4); color:var(--v-600); }
.btn--sm{ height:42px; padding:0 20px; font-size:14px; }
.btn--lg{ height:56px; padding:0 30px; font-size:15.5px; }
.btn--block{ width:100%; }

.link-arrow{
  display:inline-flex; align-items:center; gap:8px;
  font-size:14.5px; font-weight:500; color:var(--v-600);
  margin-top:24px; padding-bottom:2px;
  border-bottom:1px solid rgba(107,57,214,.25);
  transition:gap .3s var(--ease), border-color .3s;
}
.link-arrow:hover{ gap:14px; border-color:var(--v-500); }
.sol-banner .link-arrow{ color:var(--v-300); border-bottom-color:rgba(189,164,255,.28); }
.sol-banner .link-arrow:hover{ color:#fff; border-color:rgba(255,255,255,.55); }

/* ------------------ header ------------------ */
.header{
  position:fixed; inset:0 0 auto; z-index:900;
  height:var(--hdr);
  display:flex; align-items:center;
  transition:background .4s, backdrop-filter .4s, border-color .4s, height .35s;
  border-bottom:1px solid transparent;
}
.header.is-stuck{
  height:66px;
  background:rgba(9,4,18,.78);
  backdrop-filter:blur(18px) saturate(140%);
  border-bottom-color:rgba(255,255,255,.08);
}
.header__inner{ display:flex; align-items:center; gap:32px; }

.brand{ display:flex; align-items:center; gap:11px; flex:0 1 auto; min-width:0; }
.brand__mark svg,
.brand__mark img{ width:45px; height:34px; display:block; }
.brand__text{ display:flex; flex-direction:column; line-height:1.15; flex:none; }
.brand__text strong{
  font-family:var(--ff-en); font-size:19px; font-weight:700;
  letter-spacing:.01em; color:#fff;
}
.brand__text em{
  font-style:normal; font-size:10px; letter-spacing:.22em;
  color:var(--on-dark-3); margin-top:3px;
  white-space:nowrap;
}

/* 拉丁/西里尔字母副标题：中文字距（.22em）会把品牌区撑宽，这里收紧 */
:lang(en) .brand__text em,
:lang(de) .brand__text em,
:lang(fr) .brand__text em,
:lang(es) .brand__text em,
:lang(ru) .brand__text em{
  letter-spacing:.08em; font-size:10.5px;
}

.nav{ display:flex; align-items:center; gap:4px; margin-left:auto; flex:none; }
.nav a{
  position:relative; white-space:nowrap;
  padding:9px 14px; border-radius:100px;
  font-size:14.5px; color:var(--on-dark-2);
  transition:color .25s, background .25s;
}
.nav a::after{
  content:""; position:absolute; left:14px; right:14px; bottom:4px;
  height:1px; background:var(--grad);
  transform:scaleX(0); transform-origin:left;
  transition:transform .35s var(--ease);
}
.nav a:hover{ color:#fff; }
.nav a:hover::after{ transform:scaleX(1); }
.nav a.is-active{ color:#fff; }
.nav a.is-active::after{ transform:scaleX(1); }

/* 拉丁/西里尔语言的导航标签更长，收紧间距避免把右侧按钮挤出屏幕 */
:lang(en) .nav a,
:lang(de) .nav a,
:lang(fr) .nav a,
:lang(es) .nav a,
:lang(ru) .nav a{ font-size:14px; padding:9px 11px; }
:lang(en) .nav a::after,
:lang(de) .nav a::after,
:lang(fr) .nav a::after,
:lang(es) .nav a::after,
:lang(ru) .nav a::after{ left:11px; right:11px; }
.nav__mobile-cta{ display:none; }

.header__actions{ display:flex; align-items:center; gap:18px; flex:none; }
.burger{
  display:none; width:42px; height:42px;
  border:1px solid rgba(255,255,255,.16); border-radius:12px;
  position:relative;
}
.burger span{
  position:absolute; left:11px; right:11px; height:1.5px; background:#fff;
  transition:transform .35s var(--ease), opacity .3s;
}
.burger span:nth-child(1){ top:16px; }
.burger span:nth-child(2){ bottom:16px; }
.burger[aria-expanded="true"] span:nth-child(1){ transform:translateY(4.5px) rotate(45deg); }
.burger[aria-expanded="true"] span:nth-child(2){ transform:translateY(-4.5px) rotate(-45deg); }

/* 语言切换（桌面下拉） */
.lang{ position:relative; }
.lang__btn{
  display:inline-flex; align-items:center; gap:7px;
  height:38px; padding:0 12px;
  border:1px solid rgba(255,255,255,.14); border-radius:100px;
  font-size:13px; color:var(--on-dark-2);
  transition:color .25s, border-color .25s, background .25s;
}
.lang__btn .ico{ width:15px; height:15px; }
.lang__btn:hover{ color:#fff; border-color:rgba(255,255,255,.3); background:rgba(255,255,255,.05); }
.lang__caret{
  width:0; height:0; margin-left:1px;
  border-left:4px solid transparent; border-right:4px solid transparent;
  border-top:5px solid currentColor;
  transition:transform .3s var(--ease);
}
.lang.is-open .lang__caret{ transform:rotate(180deg); }
.lang__menu{
  position:absolute; top:calc(100% + 10px); right:0; z-index:5;
  min-width:160px; padding:6px;
  background:rgba(14,8,26,.98);
  border:1px solid rgba(255,255,255,.1); border-radius:14px;
  box-shadow:0 24px 60px rgba(0,0,0,.55);
  opacity:0; visibility:hidden; transform:translateY(-6px);
  transition:opacity .25s, transform .3s var(--ease), visibility .25s;
}
.lang.is-open .lang__menu{ opacity:1; visibility:visible; transform:none; }
.lang__menu a{
  display:flex; align-items:center; justify-content:space-between; gap:14px;
  padding:9px 12px; border-radius:9px;
  font-size:13.5px; color:var(--on-dark-2);
  transition:background .2s, color .2s;
}
.lang__menu a:hover{ background:rgba(255,255,255,.07); color:#fff; }
.lang__menu a.is-active{ color:#fff; }
.lang__menu a.is-active::after{
  content:""; width:5px; height:9px; flex:none;
  border-right:1.6px solid var(--v-300); border-bottom:1.6px solid var(--v-300);
  transform:rotate(42deg) translateY(-1px);
}
.nav__lang{ display:none; }

/* ------------------ hero ------------------ */
.hero{
  position:relative;
  min-height:100svh;
  display:flex; align-items:center;
  padding:calc(var(--hdr) + 60px) 0 80px;
  overflow:hidden;
  isolation:isolate;
}
.hero__bg{ position:absolute; inset:0; z-index:-1; }
.hero__image{
  position:absolute; inset:0;
  background:url("../img/hero-bg.jpg") center/cover no-repeat;
  opacity:.9;
  transform:scale(1.06);
  animation:heroDrift 26s var(--ease-io) infinite alternate;
}
@keyframes heroDrift{ to{ transform:scale(1.14) translateX(-2%);} }
.hero__veil{
  position:absolute; inset:0;
  background:
    radial-gradient(70% 60% at 18% 32%, rgba(8,4,15,.86), transparent 72%),
    radial-gradient(60% 60% at 88% 40%, rgba(8,4,15,.35), transparent 70%),
    linear-gradient(180deg, rgba(8,4,15,.72) 0%, rgba(8,4,15,.42) 38%, rgba(8,4,15,.92) 92%, #08040f 100%);
}
.orb{
  position:absolute; border-radius:50%;
  filter:blur(90px); pointer-events:none;
}
.orb--1{
  width:520px; height:520px; left:-10%; top:8%;
  background:radial-gradient(circle, rgba(132,85,240,.55), transparent 70%);
  animation:floatA 18s ease-in-out infinite;
}
.orb--2{
  width:420px; height:420px; right:2%; bottom:-8%;
  background:radial-gradient(circle, rgba(79,140,255,.40), transparent 70%);
  animation:floatB 22s ease-in-out infinite;
}
@keyframes floatA{ 50%{ transform:translate3d(40px,-30px,0) scale(1.1);} }
@keyframes floatB{ 50%{ transform:translate3d(-46px,26px,0) scale(1.08);} }

.hero__inner{
  display:grid;
  grid-template-columns:1.08fr .92fr;
  gap:clamp(32px,5vw,80px);
  align-items:center;
}

.eyebrow{
  display:inline-flex; align-items:center; gap:10px;
  font-family:var(--ff-en);
  font-size:12px; font-weight:600; letter-spacing:.18em;
  color:var(--v-200);
  padding:8px 16px 8px 12px;
  border:1px solid rgba(255,255,255,.14);
  border-radius:100px;
  background:rgba(255,255,255,.05);
  text-wrap:balance;
  backdrop-filter:blur(10px);
  margin-bottom:26px;
}
.eyebrow__dot{
  width:6px; height:6px; border-radius:50%;
  background:var(--v-300);
  box-shadow:0 0 0 4px rgba(156,123,255,.18);
  animation:pulse 2.6s ease-in-out infinite;
}
@keyframes pulse{ 50%{ box-shadow:0 0 0 7px rgba(156,123,255,.05);} }

.hero__title{
  font-size:clamp(36px,5.2vw,66px);
  line-height:1.14;
  font-weight:600;
  letter-spacing:-.02em;
  color:#fff;
}
.hero__title .grad-text{
  background:linear-gradient(112deg,#c9b6ff 0%,#a68cff 38%,#6fb6ff 100%);
  -webkit-background-clip:text; background-clip:text; color:transparent;
}
/* 拉丁/西里尔语言的标语更长，标题字号降一档，避免被挤成三四行 */
:lang(en) .hero__title,
:lang(de) .hero__title,
:lang(fr) .hero__title,
:lang(es) .hero__title,
:lang(ru) .hero__title{
  font-size:clamp(28px,2.8vw,38px);
  line-height:1.2;
  letter-spacing:-.015em;
}
:lang(ja) .hero__title,
:lang(ko) .hero__title{
  font-size:clamp(26px,3vw,42px);
  line-height:1.25;
  letter-spacing:.01em;
}
.hero__lead{
  margin-top:24px;
  max-width:50ch;
  font-size:16.5px; line-height:1.9;
  color:var(--on-dark-2);
}
.hero__cta{ display:flex; flex-wrap:wrap; gap:14px; margin-top:38px; }

.hero__meta{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:14px 22px;
  margin-top:34px; padding-top:26px;
  border-top:1px solid rgba(255,255,255,.09);
}
.hero__meta li{
  display:flex; align-items:center; gap:8px;
  font-size:13.5px; color:var(--on-dark-3);
}
.hero__meta .ico{ width:15px; height:15px; color:var(--v-300); stroke-width:2.2; }

.hero__visual{ position:relative; }
.hero__frame{
  position:relative;
  border-radius:200px 200px 32px 32px;
  overflow:hidden;
  aspect-ratio:3/4;
  border:1px solid rgba(255,255,255,.14);
  background:var(--ink-2);
  box-shadow:0 60px 120px -50px rgba(0,0,0,.9), inset 0 1px 0 rgba(255,255,255,.12);
  animation:frameIn 1.2s var(--ease) both .15s;
}
@keyframes frameIn{ from{ opacity:0; transform:translateY(28px) scale(.985);} }
.hero__frame img{
  width:100%; height:100%; object-fit:cover; object-position:center 42%;
  transform:scale(1.02);
  transition:transform 1.2s var(--ease);
}
.hero__frame:hover img{ transform:scale(1.06); }
.hero__frame-glow{
  position:absolute; inset:0; pointer-events:none;
  background:linear-gradient(180deg, transparent 55%, rgba(8,4,15,.55) 100%);
}
.hero__frame::after{
  content:""; position:absolute; inset:0; border-radius:inherit;
  box-shadow:inset 0 0 60px rgba(132,85,240,.28);
  pointer-events:none;
}

.float-card{
  position:absolute;
  display:flex; align-items:center; gap:12px;
  padding:13px 18px 13px 14px;
  border-radius:16px;
  background:rgba(20,10,36,.72);
  border:1px solid rgba(255,255,255,.13);
  backdrop-filter:blur(16px);
  box-shadow:0 24px 50px -26px rgba(0,0,0,.9);
  animation:floatCard 7s ease-in-out infinite;
}
.float-card strong{ display:block; font-size:13.5px; color:#fff; font-weight:600; line-height:1.4; }
.float-card small{ display:block; font-size:11.5px; color:var(--on-dark-3); line-height:1.5; }
.float-card__icon{
  width:36px; height:36px; flex:none; display:grid; place-items:center;
  border-radius:11px; color:#fff;
  background:var(--grad);
  box-shadow:0 8px 20px -8px rgba(132,85,240,.9);
}
.float-card__icon .ico{ width:18px; height:18px; }
.float-card--a{ top:11%; left:-9%; }
.float-card--b{ bottom:14%; right:-7%; animation-delay:-3.2s; }
@keyframes floatCard{ 50%{ transform:translateY(-10px);} }

/* ------------------ marquee ------------------ */
.marquee{
  border-top:1px solid rgba(255,255,255,.07);
  border-bottom:1px solid rgba(255,255,255,.07);
  background:rgba(10,5,18,.7);
  padding:18px 0;
}
.marquee__inner{
  width:100%;
  max-width:var(--wrap);
  margin-inline:auto;
  padding-inline:var(--pad);
  overflow:hidden;
  mask-image:linear-gradient(90deg,transparent,#000 6%,#000 94%,transparent);
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 6%,#000 94%,transparent);
}
.marquee__track{
  display:flex; align-items:center; gap:30px;
  width:max-content;
  animation:marquee 42s linear infinite;
}
.marquee__track span{
  font-size:13.5px; letter-spacing:.06em; color:var(--on-dark-3);
  white-space:nowrap;
}
.marquee__track i{
  width:4px; height:4px; border-radius:50%;
  background:var(--v-500); opacity:.6; flex:none;
}
@keyframes marquee{ to{ transform:translateX(-50%);} }

/* ------------------ stats ------------------ */
.stats{
  background:#08040f;
  padding:64px 0 72px;
  border-bottom:1px solid rgba(255,255,255,.06);
}
.stats__grid{
  display:grid; grid-template-columns:repeat(4,1fr);
}
.stat{
  padding:0 28px;
  border-left:1px solid rgba(255,255,255,.08);
}
.stat:first-child{ border-left:0; padding-left:0; }
.stat__num{
  font-family:var(--ff-en);
  font-size:clamp(30px,3.4vw,44px);
  font-weight:600; line-height:1.1;
  color:#fff; letter-spacing:-.02em;
  display:flex; align-items:baseline; gap:2px;
}
.stat__num em{
  font-style:normal;
  font-size:15px; font-weight:500;
  color:var(--v-300); margin-left:4px;
  letter-spacing:0;
}
.stat__label{ margin-top:10px; font-size:13.5px; color:var(--on-dark-3); }

/* ------------------ sections ------------------ */
.section{ position:relative; padding:clamp(72px,9vw,132px) 0; }
.section--light{ background:var(--paper); color:var(--text); }
.section--paper{ background:var(--paper-1); color:var(--text); }
.section--dark{
  background:var(--ink);
  color:var(--on-dark);
  overflow:hidden;
  isolation:isolate;
}

.sec-head{
  display:grid;
  grid-template-columns:1fr;
  gap:20px;
  margin-bottom:clamp(40px,5vw,68px);
}
.sec-head--between{
  grid-template-columns:1fr auto;
  align-items:end;
  gap:28px;
}
.sec-head .sec-lead{ margin-left:auto; }
@media (min-width:900px){
  .sec-head{ grid-template-columns:1.1fr .9fr; align-items:end; gap:48px; }
  .sec-head .sec-lead{ padding-bottom:6px; }
  .sec-head--between{ grid-template-columns:1fr auto; }
}

/* ------------------ solutions ------------------ */
.sol-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:20px;
}
.sol-card{
  position:relative;
  padding:32px 28px 28px;
  border-radius:var(--r-md);
  background:#fff;
  border:1px solid rgba(23,16,42,.07);
  box-shadow:var(--shadow-s);
  transition:transform .5s var(--ease), box-shadow .5s var(--ease), border-color .4s;
  overflow:hidden;
}
.sol-card::before{
  content:""; position:absolute; inset:0;
  background:radial-gradient(120% 80% at 0% 0%, rgba(132,85,240,.09), transparent 60%);
  opacity:0; transition:opacity .5s;
}
.sol-card:hover{
  transform:translateY(-6px);
  box-shadow:var(--shadow-m);
  border-color:rgba(132,85,240,.28);
}
.sol-card:hover::before{ opacity:1; }
.sol-card__icon{
  position:relative;
  width:48px; height:48px; display:grid; place-items:center;
  border-radius:14px;
  color:#fff;
  background:var(--grad);
  box-shadow:0 12px 26px -12px rgba(132,85,240,.85);
  margin-bottom:22px;
}
.sol-card__icon .ico{ width:22px; height:22px; }
.sol-card h3{
  position:relative;
  font-size:19px; font-weight:600; letter-spacing:.005em;
  margin-bottom:10px;
}
.sol-card p{
  position:relative;
  font-size:14.5px; line-height:1.85; color:var(--text-2);
}
.tags{
  position:relative;
  display:flex; flex-wrap:wrap; gap:8px; margin-top:20px;
}
.tags span{
  font-size:12px; color:var(--v-700);
  padding:5px 11px; border-radius:100px;
  background:var(--v-100);
  letter-spacing:.02em;
}

/* AI 智玩 · 全宽卡片 */
.sol-card--ai{
  grid-column:1 / -1;
  display:grid;
  grid-template-columns:1.04fr .96fr;
  gap:clamp(26px,3.6vw,54px);
  align-items:center;
  padding:clamp(28px,3.2vw,44px);
  background:linear-gradient(115deg,#fff 0%,#faf6ff 46%,#f3edff 100%);
  border-color:rgba(132,85,240,.16);
}
.sol-card--ai::before{ display:none; }
.sol-card--ai:hover{ transform:translateY(-4px); }
.sol-card--ai__copy{ position:relative; }
.sol-card--ai__copy .sol-card__icon{ margin-bottom:20px; }
.sol-card--ai h3{ font-size:clamp(20px,2vw,24px); }
.sol-card--ai p{ max-width:46ch; }
.ai-caps{
  position:relative;
  display:grid; grid-template-columns:1fr 1fr; gap:12px;
}
.ai-caps li{
  padding:18px 18px 20px;
  border-radius:var(--r-sm);
  background:#fff;
  border:1px solid rgba(23,16,42,.07);
  box-shadow:var(--shadow-s);
  transition:border-color .4s var(--ease), box-shadow .4s var(--ease);
}
.ai-caps li:hover{
  border-color:rgba(132,85,240,.28);
  box-shadow:var(--shadow-m);
}
.ai-caps strong{
  position:relative; display:block; padding-left:13px;
  font-size:14.5px; font-weight:600; color:var(--text);
  margin-bottom:7px;
}
.ai-caps strong::before{
  content:""; position:absolute; left:0; top:.62em;
  width:5px; height:5px; border-radius:50%;
  background:var(--grad);
}
.ai-caps span{
  display:block; font-size:12.8px; line-height:1.75; color:var(--text-3);
}

/* solution banner */
.sol-banner{
  margin-top:24px;
  display:grid;
  grid-template-columns:.95fr 1.05fr;
  border-radius:var(--r-lg);
  overflow:hidden;
  background:linear-gradient(120deg,#140a24 0%,#1c1030 55%,#241443 100%);
  color:var(--on-dark);
  border:1px solid rgba(255,255,255,.08);
  box-shadow:var(--shadow-l);
}
.sol-banner__media{ position:relative; min-height:360px; }
.sol-banner__media img{
  position:absolute; inset:0;
  width:100%; height:100%; object-fit:cover;
  opacity:.92;
}
.sol-banner__media::after{
  content:""; position:absolute; inset:0;
  background:linear-gradient(90deg, rgba(20,10,36,.1) 0%, rgba(20,10,36,.55) 72%, #1a0e2e 100%);
}
.sol-banner__body{ padding:clamp(32px,4vw,54px); }
.sol-banner__body h3{
  font-size:clamp(22px,2.4vw,30px);
  font-weight:600; line-height:1.35; color:#fff;
  margin-bottom:16px;
}
.sol-banner__body > p{
  color:var(--on-dark-2); font-size:15px; line-height:1.9; max-width:46ch;
}
.tick-list{ margin-top:24px; display:grid; gap:12px; }
.tick-list li{
  display:flex; gap:11px; align-items:flex-start;
  font-size:14px; color:var(--on-dark-2);
}
.tick-list .ico{
  width:16px; height:16px; margin-top:5px;
  color:var(--v-300); stroke-width:2.4;
}

/* ------------------ products ------------------ */
.filters{ display:flex; flex-wrap:wrap; gap:8px; }
.chip{
  height:38px; padding:0 18px; border-radius:100px;
  font-size:13.5px; color:var(--text-2);
  background:#fff; border:1px solid rgba(23,16,42,.10);
  transition:all .3s var(--ease);
}
.chip:hover{ border-color:rgba(132,85,240,.4); color:var(--v-600); }
.chip.is-active{
  color:#fff; border-color:transparent;
  background:linear-gradient(112deg,#8455f0,#5f6bff);
  box-shadow:0 10px 24px -12px rgba(107,57,214,.8);
}

.prod-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:22px;
}
.prod-card{
  display:flex; flex-direction:column;
  border-radius:var(--r-md);
  overflow:hidden;
  background:#fff;
  border:1px solid rgba(23,16,42,.07);
  box-shadow:var(--shadow-s);
  transition:transform .5s var(--ease), box-shadow .5s var(--ease);
}
.prod-card:hover{ transform:translateY(-6px); box-shadow:var(--shadow-m); }
.prod-card.is-hidden{ display:none; }

.prod-card__media{
  position:relative;
  aspect-ratio:4/3.4;
  overflow:hidden;
  background:#0d0719;
}
.prod-card__media img{
  width:100%; height:100%; object-fit:cover;
  transition:transform .9s var(--ease);
}
.prod-card:hover .prod-card__media img{ transform:scale(1.06); }
.badge{
  position:absolute; top:14px; left:14px;
  font-family:var(--ff-en);
  font-size:10.5px; font-weight:600; letter-spacing:.12em;
  color:#fff; padding:5px 10px; border-radius:6px;
  background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.24);
  backdrop-filter:blur(8px);
}
.badge--new{ background:linear-gradient(112deg,#8455f0,#5f6bff); border-color:transparent; }

.prod-card__body{
  display:flex; flex-direction:column; flex:1;
  padding:22px 22px 20px;
}
.prod-card__head{ display:flex; align-items:baseline; gap:10px; }
.prod-card__head h3{ font-size:18px; font-weight:600; }
.prod-card__en{
  font-family:var(--ff-en); font-size:10px; font-weight:500;
  letter-spacing:.14em; color:var(--text-3);
  margin-left:5px; white-space:nowrap;
}
.prod-card__desc{
  margin-top:8px; font-size:13.5px; line-height:1.75; color:var(--text-2);
}
.specs{
  display:flex; flex-wrap:wrap; gap:6px; margin-top:14px;
}
.specs li{
  font-size:11.5px; color:var(--text-2);
  padding:4px 9px; border-radius:6px;
  background:var(--paper-1);
  border:1px solid rgba(23,16,42,.05);
}
.prod-card__foot{
  display:flex; align-items:center; justify-content:space-between;
  gap:10px; margin-top:auto; padding-top:18px;
  border-top:1px solid rgba(23,16,42,.07);
}
.prod-card__cat{ font-size:12px; color:var(--text-3); }
.prod-card__more{
  display:inline-flex; align-items:center; gap:5px;
  font-size:13px; font-weight:500; color:var(--v-600);
  transition:gap .3s var(--ease);
}
.prod-card__more:hover{ gap:9px; }
.prod-card__more .ico{ width:15px; height:15px; }

.prod-note{
  margin-top:30px; font-size:12.5px; color:var(--text-3);
}

/* ------------------ app ------------------ */
.app{ background:linear-gradient(180deg,#08040f 0%,#0f0720 40%,#120a24 100%); }
.orb--3{
  width:700px; height:700px; left:-18%; top:17%;
  background:radial-gradient(circle, rgba(107,57,214,.34), transparent 68%);
}
.app__inner{
  display:grid;
  grid-template-columns:1.02fr .98fr;
  gap:clamp(32px,5vw,72px);
  align-items:center;
  position:relative;
}
.app-features{ margin-top:38px; display:grid; gap:22px; }
.app-features li{ display:flex; gap:16px; align-items:flex-start; }
.app-features__ico{
  flex:none; width:40px; height:40px; display:grid; place-items:center;
  border-radius:12px; color:var(--v-300);
  background:rgba(156,123,255,.10);
  border:1px solid rgba(156,123,255,.20);
  margin-top:2px;
}
.app-features__ico .ico{ width:19px; height:19px; }
.app-features strong{
  display:block; font-size:15.5px; font-weight:600; color:#fff; margin-bottom:4px;
}
.app-features p{ font-size:14px; line-height:1.75; color:var(--on-dark-2); max-width:42ch; }

.app__visual{ position:relative; }
.app__phone{
  width:100%; border-radius:var(--r-lg);
  border:1px solid rgba(255,255,255,.10);
  box-shadow:0 60px 120px -50px rgba(0,0,0,.95);
  transform:perspective(1200px) rotateY(-3deg);
  transition:transform .8s var(--ease);
}
.app__phone:hover{ transform:perspective(1200px) rotateY(0deg); }
.app__chip{
  position:absolute;
  padding:9px 15px; border-radius:100px;
  font-size:12px; color:#fff;
  background:rgba(24,13,42,.82);
  border:1px solid rgba(255,255,255,.14);
  backdrop-filter:blur(14px);
  box-shadow:0 18px 40px -24px rgba(0,0,0,.9);
  animation:floatCard 8s ease-in-out infinite;
}
.app__chip--a{ top:8%; left:-5%; }
.app__chip--b{ top:47%; right:-4%; animation-delay:-2.4s; }
.app__chip--c{ bottom:9%; left:4%; animation-delay:-4.6s; }

.app__strip{
  margin-top:clamp(48px,6vw,80px);
  display:grid; grid-template-columns:repeat(4,1fr);
  border-top:1px solid rgba(255,255,255,.09);
  padding-top:34px;
  gap:24px;
}
.app__strip div{ display:flex; flex-direction:column; gap:4px; }
.app__strip strong{
  font-family:var(--ff-en); font-size:22px; font-weight:600; color:#fff;
  letter-spacing:-.01em;
}
.app__strip span{ font-size:12.5px; color:var(--on-dark-3); }

/* ------------------ process ------------------ */
.steps{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:1px;
  background:rgba(23,16,42,.09);
  border-radius:var(--r-md);
  overflow:hidden;
  border:1px solid rgba(23,16,42,.08);
}
.step{
  position:relative;
  background:var(--paper);
  padding:32px 28px 30px;
  transition:background .4s;
}
.step:hover{ background:#fff; }
.step__no{
  display:block;
  font-family:var(--ff-en); font-size:12px; font-weight:600;
  letter-spacing:.16em; color:var(--v-500);
  margin-bottom:16px;
}
.step h3{ font-size:18px; font-weight:600; margin-bottom:8px; }
.step p{ font-size:14px; line-height:1.8; color:var(--text-2); }
.step__out{
  display:inline-block; margin-top:16px;
  font-size:12px; color:var(--text-3);
  padding:5px 10px; border-radius:6px;
  background:var(--paper-1);
}
.step::after{
  content:""; position:absolute; left:28px; right:28px; bottom:0; height:2px;
  background:var(--grad);
  transform:scaleX(0); transform-origin:left;
  transition:transform .5s var(--ease);
}
.step:hover::after{ transform:scaleX(1); }

/* ------------------ strength ------------------ */
.strength{ background:#08040f; }
.bento{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  grid-auto-rows:205px;
  gap:16px;
}
.bento__item{
  position:relative;
  border-radius:var(--r-md);
  overflow:hidden;
  border:1px solid rgba(255,255,255,.09);
  background:var(--ink-2);
}
.bento__item img{
  width:100%; height:100%; object-fit:cover;
  opacity:.88;
  transition:transform .9s var(--ease), opacity .5s;
}
.bento__item:hover img{ transform:scale(1.06); opacity:1; }
.bento__item figcaption{
  position:absolute; inset:auto 0 0 0;
  padding:34px 20px 18px;
  background:linear-gradient(180deg,transparent,rgba(6,3,12,.88) 58%);
}
.bento__item figcaption strong{
  display:block; font-size:14px; font-weight:600; color:#fff; margin-bottom:3px;
}
.bento__item figcaption span{
  display:block;
  font-size:11.5px; line-height:1.55; color:var(--on-dark-2);
  display:-webkit-box; -webkit-line-clamp:3; -webkit-box-orient:vertical;
  overflow:hidden;
}
.bento__item--wide{ grid-column:span 2; grid-row:span 2; }
.bento__item--wide figcaption strong{ font-size:18px; }

.bento__stat{
  border-radius:var(--r-md);
  padding:28px 24px;
  display:flex; flex-direction:column; justify-content:center;
  background:
    radial-gradient(120% 100% at 0% 0%, rgba(132,85,240,.30), transparent 62%),
    linear-gradient(160deg,#1a0e2e,#12081f);
  border:1px solid rgba(156,123,255,.22);
}
.bento__stat-num{
  font-family:var(--ff-en);
  font-size:44px; font-weight:600; line-height:1; color:#fff;
  letter-spacing:-.02em;
}
.bento__stat-num em{
  font-style:normal; font-size:18px; color:var(--v-300); margin-left:2px;
}
.bento__stat p:nth-of-type(1){ margin-top:2px; }
.bento__stat p{ font-size:13.5px; color:var(--on-dark-2); margin-top:10px; line-height:1.6; }
.bento__stat-fine{ font-size:11.5px; color:var(--on-dark-3); margin-top:auto; padding-top:14px; }

.certs{
  margin-top:44px; padding-top:30px;
  border-top:1px solid rgba(255,255,255,.08);
  display:flex; flex-wrap:wrap; align-items:center; gap:20px 32px;
}
.certs__label{ font-size:12.5px; color:var(--on-dark-3); }
.certs ul{ display:flex; flex-wrap:wrap; gap:10px; }
.certs li{
  font-family:var(--ff-en);
  font-size:12px; font-weight:500; letter-spacing:.08em;
  color:var(--on-dark-2);
  padding:7px 14px; border-radius:100px;
  border:1px solid rgba(255,255,255,.12);
  background:rgba(255,255,255,.03);
}

/* ------------------ about ------------------ */
.about__inner{
  display:grid;
  grid-template-columns:1.25fr .75fr;
  gap:clamp(32px,5vw,72px);
  align-items:start;
}
.about__lead{
  margin-top:20px; font-size:17px; line-height:1.85;
  color:var(--text); font-weight:500;
}
.about__copy > p:not(.about__lead):not(.kicker){
  margin-top:16px; font-size:15px; line-height:1.9; color:var(--text-2);
}
.about__values{
  display:grid; grid-template-columns:repeat(3,1fr); gap:24px;
  margin-top:40px; padding-top:32px;
  border-top:1px solid var(--line);
}
.about__values strong{ font-size:15px; font-weight:600; color:var(--v-600); }
.about__values p{ margin-top:6px; font-size:13.5px; line-height:1.75; color:var(--text-2); }

.about__card{
  position:sticky; top:96px;
  padding:32px 30px;
  border-radius:var(--r-md);
  background:#fff;
  border:1px solid rgba(23,16,42,.08);
  box-shadow:var(--shadow-m);
}
.about__card-kicker{
  font-family:var(--ff-en); font-size:10.5px; letter-spacing:.24em;
  color:var(--text-3); margin-bottom:20px;
}
.about__card dl{ display:grid; gap:16px; margin-bottom:26px; }
.about__card dl > div{ display:grid; gap:2px; }
.about__card dt{ font-size:11.5px; color:var(--text-3); letter-spacing:.06em; }
.about__card dd{ font-size:14px; color:var(--text); line-height:1.6; }
.about__card dd a{ color:var(--v-600); border-bottom:1px solid rgba(107,57,214,.3); }

/* ------------------ faq ------------------ */
.faq__grid{
  display:grid;
  grid-template-columns:minmax(0,318px) minmax(0,1fr);
  gap:clamp(40px,5vw,84px);
  align-items:start;
}
.faq__aside{ position:sticky; top:calc(var(--hdr) + 40px); }
.faq__aside .kicker{ margin-bottom:20px; }
.faq__title{
  font-size:clamp(26px,2.7vw,36px);
  line-height:1.32;
  font-weight:600;
  letter-spacing:-.012em;
  color:var(--text);
}
.faq__note{
  margin-top:22px;
  max-width:32ch;
  font-size:14px; line-height:1.95; color:var(--text-2);
}
.faq__ask{
  margin-top:36px; padding-top:24px;
  max-width:32ch;
  border-top:1px solid rgba(23,16,42,.14);
}
.faq__ask-k{
  font-family:var(--ff-en);
  font-size:10.5px; font-weight:600;
  letter-spacing:.20em; text-transform:uppercase;
  color:var(--text-3);
}
.faq__ask-link{
  display:inline-flex; align-items:baseline; gap:9px;
  margin-top:11px;
  font-size:15px; font-weight:600; color:var(--v-600);
  transition:gap .32s var(--ease), color .25s;
}
.faq__ask-link:hover{ gap:15px; color:var(--v-700); }
.faq__ask-link span{ font-weight:400; }
.faq__ask-meta{
  margin-top:14px;
  font-size:12px; line-height:1.95; color:var(--text-3);
  letter-spacing:.01em;
}

/* 编号台账：竖线贯穿整列 */
.faq{
  --idx-w:56px;
  --gap-w:30px;
  --sign-w:34px;
  position:relative;
  border-top:1px solid rgba(23,16,42,.16);
}
.faq::before{
  content:"";
  position:absolute; top:0; bottom:0; z-index:2;
  pointer-events:none;
  left:calc(var(--idx-w) + 8px);
  width:1px;
  background:linear-gradient(180deg, rgba(23,16,42,.14), rgba(23,16,42,.05));
}
.faq__item{
  position:relative;
  border-bottom:1px solid rgba(23,16,42,.10);
  transition:background .3s;
}
.faq__item:hover{ background:rgba(124,92,255,.032); }
.faq__item::before{
  content:"";
  position:absolute; top:0; bottom:0; z-index:3;
  left:calc(var(--idx-w) + 7px);
  width:2px;
  background:var(--v-600);
  transform:scaleY(0); transform-origin:50% 0;
  transition:transform .45s var(--ease);
}
.faq__item.is-open::before{ transform:scaleY(1); }
.faq__q{
  width:100%;
  display:grid;
  grid-template-columns:var(--idx-w) minmax(0,1fr) var(--sign-w);
  align-items:start;
  padding:23px 0;
  text-align:left;
}
.faq__idx{
  padding-top:7px;
  font-family:var(--ff-en);
  font-size:11.5px; font-weight:600; letter-spacing:.10em;
  font-variant-numeric:tabular-nums;
  color:rgba(23,16,42,.30);
  transition:color .3s;
}
.faq__text{
  padding-left:var(--gap-w);
  font-size:16.5px; font-weight:600; line-height:1.6;
  letter-spacing:-.004em;
  color:var(--text);
  transition:color .25s;
}
.faq__sign{
  position:relative;
  justify-self:end;
  width:var(--sign-w); height:var(--sign-w);
  margin-top:2px;
  border:1px solid rgba(23,16,42,.16);
  border-radius:3px;
  background:transparent;
  transition:background .3s, border-color .3s;
}
.faq__sign i{
  position:absolute; left:50%; top:50%;
  background:var(--text-2);
  transition:background .3s, transform .4s var(--ease);
}
.faq__sign i:nth-child(1){ width:11px; height:1px; transform:translate(-50%,-50%); }
.faq__sign i:nth-child(2){ width:1px; height:11px; transform:translate(-50%,-50%); }
.faq__q:hover .faq__idx{ color:rgba(23,16,42,.55); }
.faq__q:hover .faq__sign{ border-color:rgba(107,57,214,.55); }
.faq__q:hover .faq__sign i{ background:var(--v-600); }
.faq__item.is-open .faq__idx{ color:var(--v-600); }
.faq__item.is-open .faq__sign{ background:var(--v-600); border-color:var(--v-600); }
.faq__item.is-open .faq__sign i{ background:#fff; }
.faq__item.is-open .faq__sign i:nth-child(2){ transform:translate(-50%,-50%) scaleY(0); }

.faq__a{
  display:grid;
  grid-template-rows:0fr;
  transition:grid-template-rows .45s var(--ease);
}
.faq__a > div{ overflow:hidden; }
.faq__item.is-open .faq__a{ grid-template-rows:1fr; }
.faq__a p{
  max-width:66ch;
  margin:0 0 26px calc(var(--idx-w) + var(--gap-w));
  padding:18px 22px;
  font-size:14.5px; line-height:1.9; color:var(--text-2);
  background:linear-gradient(90deg, rgba(124,92,255,.085), rgba(124,92,255,.035) 70%, rgba(124,92,255,.02));
  border-left:2px solid rgba(124,92,255,.5);
  border-radius:0 10px 10px 0;
}

/* ------------------ contact ------------------ */
.contact{
  background:linear-gradient(180deg,#0a0512 0%,#120a24 60%,#0b0616 100%);
  padding-bottom:clamp(72px,9vw,120px);
}
.orb--4{
  width:620px; height:620px; right:-12%; top:0;
  background:radial-gradient(circle, rgba(79,107,255,.26), transparent 68%);
}
.contact__inner{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:clamp(32px,5vw,72px);
  align-items:start;
  position:relative;
}
.contact-list{
  margin-top:40px;
  display:grid; gap:2px;
}
.contact-list li{
  display:flex; align-items:center; gap:16px;
  padding:18px 0;
  border-top:1px solid rgba(255,255,255,.08);
}
.contact-list li:last-child{ border-bottom:1px solid rgba(255,255,255,.08); }
.contact-list__ico{
  width:40px; height:40px; flex:none; display:grid; place-items:center;
  border-radius:12px; color:var(--v-300);
  background:rgba(156,123,255,.10);
  border:1px solid rgba(156,123,255,.18);
}
.contact-list small{
  display:block; font-size:11.5px; color:var(--on-dark-3); letter-spacing:.08em;
}
.contact-list strong,
.contact-list a{
  display:block; font-size:16px; color:#fff; font-weight:500;
  transition:color .25s;
}
.contact-list a:hover{ color:var(--v-300); }
.copy-btn{
  margin-left:auto;
  font-size:11.5px; color:var(--on-dark-3);
  padding:6px 12px; border-radius:100px;
  border:1px solid rgba(255,255,255,.14);
  transition:all .3s;
}
.copy-btn:hover{ color:#fff; border-color:rgba(255,255,255,.35); }
.copy-btn.is-done{ color:#c4f5d8; border-color:rgba(120,230,160,.4); }

.contact__form-wrap{
  padding:clamp(26px,3vw,40px);
  border-radius:var(--r-lg);
  background:rgba(255,255,255,.045);
  border:1px solid rgba(255,255,255,.10);
  backdrop-filter:blur(18px);
  box-shadow:0 50px 100px -50px rgba(0,0,0,.9);
}
.cform__title{ font-size:15px; font-weight:500; color:#fff; margin-bottom:24px; }
.cform__row{ display:grid; grid-template-columns:1fr 1fr; gap:14px; }
.field{ display:block; margin-bottom:14px; }
.field > span{
  display:block; font-size:11.5px; color:var(--on-dark-3);
  margin-bottom:8px; letter-spacing:.05em;
}
.field input,
.field select,
.field textarea{
  width:100%;
  font-family:inherit; font-size:14.5px;
  color:#fff;
  padding:13px 15px;
  border-radius:12px;
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.12);
  outline:none;
  transition:border-color .3s, background .3s, box-shadow .3s;
}
.field textarea{ resize:vertical; line-height:1.7; }
.field select{ appearance:none; background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'><path d='M2 4.5 6 8.5 10 4.5' fill='none' stroke='%23a99fc6' stroke-width='1.4' stroke-linecap='round'/></svg>"); background-repeat:no-repeat; background-position:right 15px center; }
.field select option{ background:#180d2a; color:#fff; }
.field input::placeholder,
.field textarea::placeholder{ color:rgba(185,176,212,.55); }
.field input:focus,
.field select:focus,
.field textarea:focus{
  border-color:rgba(156,123,255,.65);
  background:rgba(255,255,255,.08);
  box-shadow:0 0 0 3px rgba(132,85,240,.16);
}
.cform .btn{ margin-top:8px; }
.cform__fine{
  margin-top:14px; font-size:11.5px; line-height:1.7;
  color:var(--on-dark-3);
}
.cform__ok{
  margin-top:16px; padding:12px 16px; border-radius:10px;
  font-size:13px; color:#d9f7e5;
  background:rgba(60,200,120,.12);
  border:1px solid rgba(60,200,120,.3);
}
.cform__ok strong{ color:#fff; }

/* ------------------ footer ------------------ */
.footer{
  background:#06030c;
  border-top:1px solid rgba(255,255,255,.07);
  padding:64px 0 30px;
}
.footer__inner{
  display:grid;
  grid-template-columns:1.9fr .8fr .8fr 1fr;
  gap:40px;
}
.brand--footer{ margin-bottom:20px; }
.footer__brand p{
  font-size:13.5px; line-height:1.85; color:var(--on-dark-3);
  max-width:26em;            /* 放开到一句中文不折行（约 19 字） */
  text-wrap:pretty;
}
.footer__col{ display:flex; flex-direction:column; gap:11px; }
.footer__col h4{
  font-size:12px; font-weight:600; letter-spacing:.14em;
  color:#fff; text-transform:uppercase; margin-bottom:5px;
}
.footer__col a,
.footer__col span{
  font-size:13.5px; color:var(--on-dark-3);
  transition:color .25s;
}
.footer__col a:hover{ color:#fff; }

.footer__bottom{
  margin-top:52px; padding-top:24px;
  border-top:1px solid rgba(255,255,255,.07);
  display:flex; justify-content:space-between; flex-wrap:wrap; gap:12px;
  font-size:12px; color:rgba(134,125,164,.85);
}
.footer__legal{ display:flex; align-items:center; gap:10px; flex-wrap:wrap; }
.footer__legal a{ transition:color .25s; }
.footer__legal a:hover{ color:#fff; }
.dot{ opacity:.4; }

/* ------------------ to top ------------------ */
.totop{
  position:fixed; right:24px; bottom:24px; z-index:800;
  width:46px; height:46px; border-radius:50%;
  display:grid; place-items:center;
  color:#fff;
  background:var(--grad);
  box-shadow:0 18px 40px -18px rgba(126,88,255,.9);
  opacity:0; visibility:hidden; transform:translateY(12px);
  transition:opacity .4s, visibility .4s, transform .4s var(--ease);
}
.totop .ico{ transform:rotate(-90deg); width:18px; height:18px; }
.totop.is-on{ opacity:1; visibility:visible; transform:none; }
.totop:hover{ transform:translateY(-3px); }

/* ------------------ reveal ------------------ */
[data-reveal]{
  opacity:0;
  transform:translateY(22px);
  transition:opacity .8s var(--ease), transform .8s var(--ease);
}
[data-reveal].is-in{ opacity:1; transform:none; }
@media (prefers-reduced-motion:reduce){
  [data-reveal]{ opacity:1 !important; transform:none !important; transition:none; }
  *{ animation-duration:.001ms !important; animation-iteration-count:1 !important; }
}

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width:1100px){
  .sol-grid{ grid-template-columns:repeat(2,1fr); }
  .sol-card--ai{ grid-template-columns:1fr; align-items:start; }
  .prod-grid{ grid-template-columns:repeat(2,1fr); }
  .steps{ grid-template-columns:repeat(2,1fr); }
  .bento{ grid-template-columns:repeat(2,1fr); grid-auto-rows:200px; }
  .bento__item--wide{ grid-column:span 2; }
  .footer__inner{ grid-template-columns:1.4fr 1fr 1fr; }
  .footer__col:last-child{ grid-column:span 3; flex-direction:row; flex-wrap:wrap; gap:18px 26px; align-items:center; }
  .footer__col:last-child h4{ width:100%; margin-bottom:0; }
}

/* 1141–1320 的中等桌面宽度：俄语/德语等长标签会把右侧操作区顶出屏幕，
   这里统一收紧页头间距，避免导航折行 */
@media (min-width:1141px) and (max-width:1320px){
  .header__inner{ gap:20px; }
  .nav a{ font-size:13.5px; padding:9px 10px; }
  .nav a::after{ left:10px; right:10px; }
  .header__actions{ gap:14px; }
  .btn--sm{ padding:0 16px; }
}

/* 导航切换全屏菜单的断点比版式断点更早：品牌副标加长后，
   1080 以下桌面导航会折行，故提前收进汉堡菜单 */
@media (max-width:1140px){
  .nav{
    position:fixed; inset:0; z-index:1;
    flex-direction:column; align-items:stretch; gap:2px;
    padding:calc(var(--hdr) + 62px) var(--pad) 32px;
    max-height:100dvh; overflow-y:auto; overscroll-behavior:contain;
    background:rgba(8,4,15,.97);
    backdrop-filter:blur(20px);
    border-bottom:1px solid rgba(255,255,255,.08);
    transform:translateY(-100%);
    transition:transform .5s var(--ease);
    visibility:hidden;
  }
  .nav.is-open{ transform:none; visibility:visible; }
  .nav a{
    font-size:19px; padding:16px 0; border-radius:0;
    border-bottom:1px solid rgba(255,255,255,.07);
    color:#fff;
  }
  .nav a::after{ display:none; }
  .nav__mobile-cta{
    display:block; margin-top:22px; text-align:center;
    border:0 !important; border-radius:100px !important;
    background:var(--grad); color:#fff;
    font-size:16px !important; padding:16px !important;
  }
  /* 菜单面板展开时，品牌标识浮在面板之上，不随导航一起被盖住 */
  .brand{ position:relative; z-index:2; }
  .header__actions{ margin-left:auto; position:relative; z-index:2; }
  .burger{ display:block; }

  /* 手机上语言入口收进菜单面板，避免与按钮争位 */
  .lang{ display:none; }
  .nav .nav__lang{
    display:flex; flex-wrap:wrap; gap:8px; margin-top:20px;
  }
  .nav .nav__lang a{
    font-size:12.5px; padding:7px 12px;
    border:1px solid rgba(255,255,255,.2); border-radius:100px;
    color:rgba(255,255,255,.72);
  }
  .nav .nav__lang a:active{ background:rgba(255,255,255,.08); }
  .nav .nav__lang a.is-active{
    color:#fff; border-color:rgba(163,124,255,.7);
    background:rgba(163,124,255,.2);
  }
}

@media (max-width:980px){
  :root{ --hdr:68px; }

  .hero{ min-height:auto; padding:calc(var(--hdr) + 48px) 0 64px; }
  .hero__inner{ grid-template-columns:1fr; gap:48px; }
  .hero__visual{ max-width:440px; margin-inline:auto; width:100%; }
  .hero__frame{ aspect-ratio:4/4.4; border-radius:150px 150px 28px 28px; }
  .hero__lead{ font-size:15.5px; }
  .float-card--a{ left:-2%; }
  .float-card--b{ right:-2%; }

  .stats__grid{ grid-template-columns:repeat(2,1fr); gap:32px 0; }
  .stat:nth-child(3){ border-left:0; padding-left:0; }
  .stat{ padding-right:12px; }

  .sol-banner{ grid-template-columns:1fr; }
  .sol-banner__media{ min-height:260px; }
  .sol-banner__media::after{
    background:linear-gradient(180deg, rgba(20,10,36,.1), rgba(26,14,46,.95) 92%);
  }

  .app__inner{ grid-template-columns:1fr; }
  .app__visual{ order:-1; max-width:420px; margin-inline:auto; }
  .app__strip{ grid-template-columns:repeat(2,1fr); gap:26px 20px; }

  .about__inner{ grid-template-columns:1fr; }
  .about__card{ position:static; }

  .faq__grid{ grid-template-columns:1fr; gap:38px; }
  .faq__aside{ position:static; }
  .faq__note,
  .faq__ask{ max-width:52ch; }
  .faq__ask{ margin-top:28px; }

  .contact__inner{ grid-template-columns:1fr; }

  .footer__inner{ grid-template-columns:1fr 1fr; gap:34px; }
  .footer__brand{ grid-column:span 2; }
  .footer__col:last-child{ grid-column:span 2; }
  .footer__bottom{ flex-direction:column; }
}

@media (max-width:720px){
  :root{ --pad:20px; }
  /* 窄屏放不下时允许词组换行：非中文语言里这一整段可能比屏幕还宽 */
  .nw{ white-space:normal; }
  .sec-head--between{ grid-template-columns:1fr; }
  .filters{ margin-top:4px; }
  .sol-grid,
  .prod-grid,
  .steps{ grid-template-columns:1fr; }
  .bento{ grid-template-columns:1fr; grid-auto-rows:auto; }
  .bento__item{ aspect-ratio:4/3; }
  .bento__item--wide{ grid-column:span 1; grid-row:span 1; aspect-ratio:4/3.4; }
  .bento__stat{ padding:32px 24px; }
  .about__values{ grid-template-columns:1fr; gap:20px; }
  .cform__row{ grid-template-columns:1fr; }
  .faq{ --idx-w:34px; --gap-w:14px; --sign-w:30px; }
  .faq::before{ left:calc(var(--idx-w) + 7px); }
  .faq__q{ padding:19px 0; }
  .faq__idx{ font-size:11px; padding-top:6px; }
  .faq__text{ font-size:15.5px; }
  .faq__sign{ margin-top:1px; }
  .faq__a p{ margin-bottom:20px; padding:14px 16px; font-size:14px; }
  .contact__form-wrap{ padding:24px 20px; }
  .br-m{ display:block; }
  .hero__frame{ aspect-ratio:1/1.05; border-radius:120px 120px 24px 24px; }
  .float-card{ padding:10px 14px 10px 12px; }
  .float-card strong{ font-size:12.5px; }
  .float-card small{ font-size:10.5px; }
  .hero__cta{ flex-direction:column; align-items:stretch; gap:10px; }
  .hero__cta .btn{ width:100%; }
  .sol-card{ padding:28px 22px 24px; }
  .hero__meta{ grid-template-columns:1fr; gap:11px; }
  .ai-caps{ grid-template-columns:1fr; }
  .step{ padding:28px 22px; }
  .footer__inner{ grid-template-columns:1fr; }
  .footer__brand,
  .footer__col:last-child{ grid-column:span 1; }
  .footer__col:last-child{ flex-direction:column; align-items:flex-start; }
  .totop{ right:16px; bottom:16px; width:42px; height:42px; }
  .stats__grid{ grid-template-columns:1fr 1fr; }
}

/* 品牌副标改为「一站式智能产品服务商」后小屏更宽，收紧顶部间距保住汉堡按钮 */
@media (max-width:420px){
  .header__inner{ gap:12px; }
  .header__actions{ gap:10px; }
  .brand{ gap:8px; }
  .brand__mark svg,
  .brand__mark img{ width:40px; height:30px; }
  .brand__text em{ font-size:9px; letter-spacing:.1em; }
  .header__actions .btn--sm{ padding:0 14px; font-size:13px; }
  /* 首屏标签含中文品牌名「拓湃」，小屏收紧一档防换行 */
  .eyebrow{ font-size:10.5px; letter-spacing:.1em; padding:7px 12px 7px 9px; gap:8px; }
}

/* 极窄屏：页头只保留品牌 + 汉堡。首屏与菜单面板都有主 CTA，
   腾出的空间留给 logo 下的公司名，避免非中文语言撑破页头 */
@media (max-width:480px){
  .header__actions .btn--grad{ display:none; }
  /* 中文标签最紧凑，360 下仍放得下主 CTA，保留 */
  :lang(zh-CN) .header__actions .btn--grad,
  :lang(zh-Hant) .header__actions .btn--grad{ display:inline-flex; }
}