/* ==========================================================================
   MINKE · 敏客物联 · 智慧出入口 SaaS 服务商
   Design Tokens · Modern SaaS Enterprise UI · 2025
   ========================================================================== */

:root{
  /* Brand Colors — Premium Blue System */
  --primary:#1D4ED8;          /* Deep Brand Blue */
  --primary-500:#2563EB;       /* Core Blue        */
  --primary-600:#1E40AF;       /* Deep              */
  --primary-700:#1E3A8A;       /* Night             */
  --accent:#60A5FA;            /* Light highlight   */
  --accent-soft:#BFDBFE;       /* Soft wash         */

  /* Orange Accent System (Taobao/Purchase) */
  --orange:#F97316;            /* Vibrant orange   */
  --orange-600:#EA580C;        /* Deep orange      */
  --orange-300:#FDBA74;        /* Soft orange      */
  --orange-100:#FFEDD5;        /* Wash orange      */

  /* Ink System */
  --ink:#0F172A;               /* Primary text     */
  --ink-2:#334155;             /* Secondary text   */
  --ink-3:#475569;             /* Muted text       */
  --muted:#64748B;             /* Helper text      */

  /* Surface System */
  --line:#E2E8F0;              /* Dividers         */
  --line-2:#CBD5E1;            /* Strong lines     */
  --bg:#F8FAFC;                /* Light bg         */
  --bg-blue:#EFF6FF;           /* Blue wash        */
  --white:#FFFFFF;             /* Pure white       */

  /* Radius System */
  --radius:16px;               /* Cards            */
  --radius-sm:12px;            /* Small components */
  --radius-lg:24px;            /* Hero visuals     */

  /* Shadow System (Layered) */
  --shadow-xs:0 1px 2px rgba(15,23,42,.05);
  --shadow-sm:0 2px 8px rgba(15,23,42,.05),0 1px 3px rgba(15,23,42,.04);
  --shadow:0 4px 14px rgba(15,23,42,.05),0 2px 6px rgba(15,23,42,.03);
  --shadow-md:0 12px 28px rgba(15,23,42,.08),0 4px 12px rgba(15,23,42,.04);
  --shadow-lg:0 28px 60px -12px rgba(29,78,216,.18),0 18px 40px -20px rgba(29,78,216,.12);
  --shadow-blue:0 16px 40px -10px rgba(37,99,235,.25),0 8px 16px -4px rgba(37,99,235,.12);
  --shadow-orange:0 16px 40px -10px rgba(249,115,22,.28),0 8px 16px -4px rgba(249,115,22,.14);

  /* Typography */
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,"Noto Sans",sans-serif;
  --font-mono:"SF Mono","JetBrains Mono",Menlo,Consolas,monospace;

  /* Easing */
  --ease:cubic-bezier(.4,0,.2,1);
  --ease-out:cubic-bezier(.16,1,.3,1);
  --ease-in-out:cubic-bezier(.65,0,.35,1);
}

/* ==========================================================================
   RESET & BASE
   ========================================================================== */
*{box-sizing:border-box}
html{scroll-behavior:smooth}
html,body{margin:0;padding:0;overflow-x:hidden;width:100%;min-height:100%}
body{
  font-family:var(--font);
  color:var(--ink);
  background:var(--white);
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  font-size:15px;
  position:relative;
  letter-spacing:.2px;
}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease)}
img{max-width:100%;display:block;max-height:100%;object-fit:cover}
button{font-family:inherit;cursor:pointer;border:0;background:none}
strong,b{font-weight:700}
::selection{background:#2563EB;color:#fff}
input,textarea,select{font-family:inherit}

/* ==========================================================================
   LAYOUT PRIMITIVES
   ========================================================================== */
.container{max-width:1280px;margin:0 auto;padding:0 32px}
.container-narrow{max-width:1080px;margin:0 auto;padding:0 32px}

/* ==========================================================================
   BUTTON SYSTEM
   ========================================================================== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 22px;border-radius:999px;font-size:14.5px;font-weight:600;
  transition:all .25s var(--ease);white-space:nowrap;letter-spacing:.2px;
  border:1.5px solid transparent;cursor:pointer;line-height:1;
}
.btn--primary{
  background:linear-gradient(135deg,#1D4ED8 0%,#2563EB 100%);
  color:#fff;box-shadow:var(--shadow-blue);
  position:relative;overflow:hidden;
}
.btn--primary::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(135deg,#1E3A8A,#1D4ED8);
  opacity:0;transition:opacity .25s var(--ease);
}
.btn--primary:hover{
  transform:translateY(-2px);
  box-shadow:0 22px 44px -12px rgba(37,99,235,.38),0 12px 24px -6px rgba(37,99,235,.18);
}
.btn--primary:hover::after{opacity:1}
.btn--primary span{position:relative;z-index:1}

.btn--ghost{
  background:#fff;color:var(--primary);border:1.5px solid #CBD5E1;
  box-shadow:var(--shadow-xs);
}
.btn--ghost:hover{
  border-color:var(--primary);color:var(--primary);
  transform:translateY(-2px);box-shadow:var(--shadow);
}

.btn--taobao{
  background:linear-gradient(135deg,#F97316,#FB923C);color:#fff;
  box-shadow:var(--shadow-orange);position:relative;overflow:hidden;
}
.btn--taobao:hover{
  transform:translateY(-2px);
  box-shadow:0 22px 44px -12px rgba(249,115,22,.42),0 12px 24px -6px rgba(249,115,22,.18);
}

.btn--outline{
  background:transparent;color:var(--ink);border:1.5px solid var(--line-2);
}
.btn--outline:hover{border-color:var(--primary);color:var(--primary);background:var(--bg-blue)}

.btn--lg{padding:15px 32px;font-size:15.5px}
.btn--block{display:flex;width:100%}
.btn:disabled,
.btn[aria-busy="true"]{
  cursor:not-allowed;
  opacity:.76;
  transform:none!important;
  box-shadow:none!important;
}

/* ==========================================================================
   TOP NAVIGATION
   ========================================================================== */
.topbar{
  position:sticky;top:0;z-index:100;
  width:100%;
  background:rgba(255,255,255,.78);
  backdrop-filter:saturate(180%) blur(18px);
  -webkit-backdrop-filter:saturate(180%) blur(18px);
  border-bottom:1px solid rgba(226,232,240,.6);
}
.topbar__inner{
  display:flex;align-items:center;justify-content:space-between;
  height:68px;gap:24px;max-width:1280px;margin:0 auto;padding:0 32px;
}
.brand{display:flex;align-items:center;gap:12px;min-width:0;flex-shrink:0}
.brand__mark{
  width:40px;height:40px;border-radius:12px;flex-shrink:0;
  background:linear-gradient(135deg,#1D4ED8 0%,#3B82F6 50%,#60A5FA 100%);
  display:grid;place-items:center;color:#fff;font-weight:800;
  font-size:18px;letter-spacing:.5px;
  box-shadow:0 6px 16px rgba(37,99,235,.28),inset 0 1px 0 rgba(255,255,255,.25);
  position:relative;
}
.brand__mark::after{
  content:"";position:absolute;inset:-3px;border-radius:14px;
  border:1.5px dashed rgba(37,99,235,.25);
  pointer-events:none;
}
.brand__text{line-height:1.15}
.brand__name{font-weight:800;font-size:16.5px;color:var(--ink);letter-spacing:.5px}
.brand__sub{font-size:11px;color:var(--muted);letter-spacing:2px;margin-top:2px;opacity:.85}

.nav{display:flex;align-items:center;gap:4px;flex:1;justify-content:center}
.nav a{
  padding:8px 14px;border-radius:10px;font-size:14px;color:var(--ink-2);
  transition:all .2s var(--ease);font-weight:500;white-space:nowrap;position:relative;
}
.nav a:hover{color:var(--primary-500);background:var(--bg-blue)}
.nav a.is-active{
  color:var(--primary);background:#DBEAFE;font-weight:600;
}

.nav__quote{
  color:var(--primary)!important;background:linear-gradient(135deg,#EFF6FF,#DBEAFE)!important;
  border:1.5px solid rgba(37,99,235,.35);padding:6px 14px!important;font-weight:600!important;
  box-shadow:0 2px 8px rgba(37,99,235,.08);
}
.nav__quote:hover{
  background:linear-gradient(135deg,#DBEAFE,#BFDBFE)!important;
  transform:translateY(-1px);
}

.top-cta{display:flex;align-items:center;gap:12px;flex-shrink:0}
.menu-toggle{display:none;background:none;border:0;font-size:22px;color:var(--primary);padding:8px 10px;border-radius:8px;transition:all .25s var(--ease);cursor:pointer;position:relative;z-index:101}
.menu-toggle:hover{background:var(--bg-blue)}
.menu-toggle.is-open{background:var(--primary);color:#fff;transform:rotate(90deg)}

/* ==========================================================================
   HERO
   ========================================================================== */
.hero{
  position:relative;overflow:hidden;width:100%;color:#E2E8F0;
  background:
    radial-gradient(1400px 700px at 85% -10%,rgba(59,130,246,.45),transparent 55%),
    radial-gradient(1100px 600px at -10% 110%,rgba(99,102,241,.35),transparent 55%),
    linear-gradient(180deg,#060B24 0%,#0B1638 55%,#0D1B4A 100%);
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(147,197,253,.18) 1px,transparent 1px),
    linear-gradient(90deg,rgba(147,197,253,.18) 1px,transparent 1px);
  background-size:48px 48px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.8) 0%,rgba(0,0,0,.2) 70%,transparent 100%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.8) 0%,rgba(0,0,0,.2) 70%,transparent 100%);
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(circle at 75% 35%,rgba(59,130,246,.25) 0,transparent 35%),
    radial-gradient(circle at 25% 65%,rgba(99,102,241,.2) 0,transparent 40%);
}
.hero__inner{position:relative;padding:96px 0 110px;display:grid;grid-template-columns:1.1fr .9fr;gap:64px;align-items:center;z-index:2}

/* —— Tech particles / nodes layer —— */
.hero__particles{position:absolute;inset:0;z-index:1;pointer-events:none}
.hero__particles canvas{width:100%;height:100%;display:block}

/* —— Scanline sweep —— */
.hero__scan{position:absolute;inset:0;z-index:1;pointer-events:none;overflow:hidden}
.hero__scan::before{
  content:"";position:absolute;left:-20%;right:-20%;top:-5%;height:120px;
  background:linear-gradient(180deg,transparent 0%,rgba(96,165,250,.18) 50%,transparent 100%);
  animation:hero-scan 6s linear infinite;
}
@keyframes hero-scan{
  0%{transform:translateY(-20%)}
  100%{transform:translateY(120%)}
}

/* —— Pulsing glow nodes —— */
.hero__nodes{position:absolute;inset:0;z-index:1;pointer-events:none}
.hero__nodes span{
  position:absolute;width:6px;height:6px;border-radius:50%;
  background:#60A5FA;box-shadow:0 0 0 0 rgba(96,165,250,.7);
  animation:hero-pulse 3s ease-in-out infinite;
}
.hero__nodes span:nth-child(1){top:18%;left:12%}
.hero__nodes span:nth-child(2){top:25%;left:42%;animation-delay:.8s;background:#93C5FD;box-shadow:0 0 0 0 rgba(147,197,253,.7)}
.hero__nodes span:nth-child(3){top:60%;left:8%;animation-delay:1.3s;background:#A78BFA;box-shadow:0 0 0 0 rgba(167,139,250,.7)}
.hero__nodes span:nth-child(4){top:72%;left:35%;animation-delay:.4s}
.hero__nodes span:nth-child(5){top:20%;left:70%;animation-delay:1.6s;background:#22D3EE;box-shadow:0 0 0 0 rgba(34,211,238,.7)}
.hero__nodes span:nth-child(6){top:55%;left:88%;animation-delay:2.1s}
.hero__nodes span:nth-child(7){top:80%;left:60%;animation-delay:1s;background:#93C5FD;box-shadow:0 0 0 0 rgba(147,197,253,.7)}
@keyframes hero-pulse{
  0%,100%{transform:scale(1);box-shadow:0 0 0 0 currentColor;opacity:.85}
  50%{transform:scale(1.8);box-shadow:0 0 20px 4px currentColor;opacity:1}
}
.hero__video{position:absolute;left:0;right:0;bottom:0;height:320px;z-index:0;overflow:hidden;pointer-events:none}
.hero__video video{width:100%;height:100%;object-fit:cover;display:block;position:absolute;inset:0}
.hero__video-overlay{position:absolute;inset:0;z-index:1;opacity:.75;
  background:
    linear-gradient(180deg,rgba(6,11,36,0) 0%,rgba(6,11,36,.35) 35%,rgba(6,11,36,.8) 75%,rgba(6,11,36,.95) 100%),
    repeating-linear-gradient(90deg,rgba(147,197,253,.15) 0 1px,transparent 1px 56px),
    repeating-linear-gradient(0deg,rgba(147,197,253,.1) 0 1px,transparent 1px 56px);
}
.hero__video-overlay::after{content:"";position:absolute;inset:0;
  background:radial-gradient(ellipse at 50% 100%,rgba(59,130,246,.35) 0%,transparent 60%);
}

.hero__eyebrow{
  display:inline-flex;align-items:center;gap:10px;padding:7px 14px 7px 8px;
  border-radius:999px;background:rgba(30,58,138,.35);color:#DBEAFE;font-size:12.5px;
  font-weight:600;letter-spacing:.5px;border:1px solid rgba(96,165,250,.45);
  box-shadow:0 4px 20px rgba(37,99,235,.2);
}
.hero__eyebrow::before{
  content:"";width:8px;height:8px;border-radius:50%;background:#60A5FA;
  box-shadow:0 0 0 4px rgba(96,165,250,.2);margin-left:6px;
}
.hero h1{
  font-size:56px;line-height:1.1;font-weight:800;margin:20px 0 18px;
  color:#fff;letter-spacing:-1px;
}
.hero h1 em{
  font-style:normal;background:linear-gradient(135deg,#60A5FA 0%,#C4B5FD 60%,#67E8F9 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero__sub{font-size:17px;color:#CBD5E1;margin:0 0 8px;font-weight:500}
.hero__desc{color:rgba(226,232,240,.8);font-size:15.5px;max-width:520px;margin:0 0 32px;line-height:1.8}
.hero__cta{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:40px}
.hero__stats{
  display:flex;gap:0;padding-top:32px;border-top:1px solid rgba(255,255,255,.25);
  max-width:520px;
}
.hero__stats > div{
  flex:1;padding:0 16px;border-right:1px solid rgba(255,255,255,.25);
}
.hero__stats > div:first-child{padding-left:0}
.hero__stats > div:last-child{border-right:0}
.hero__stats b{
  display:block;font-size:32px;color:#fff;font-weight:800;
  letter-spacing:-1px;line-height:1;
}
.hero__stats b::after{
  content:"+";color:#93C5FD;font-weight:800;margin-left:2px;
  font-size:22px;vertical-align:top;
}
.hero__stats span{font-size:12.5px;color:rgba(255,255,255,.75);letter-spacing:.5px;margin-top:6px;display:block}

/* Hero Visual */
.hero__visual{position:relative;min-height:480px;max-width:100%}
.hero__card{
  position:absolute;background:rgba(15,23,42,.55);backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-radius:20px;padding:22px;
  box-shadow:0 20px 50px -10px rgba(15,23,42,.6),0 0 0 1px rgba(96,165,250,.2) inset;
  border:1px solid rgba(96,165,250,.25);
  color:#E2E8F0;
}
.hero__card--main{
  top:40px;right:20px;left:0;padding:28px;
  background:linear-gradient(135deg,rgba(15,23,42,.9),rgba(30,58,138,.85));
  color:#fff;border:1px solid rgba(96,165,250,.3);
  box-shadow:0 40px 80px -20px rgba(30,58,138,.55),0 0 0 1px rgba(147,197,253,.25) inset;
}
.hero__card--chip{
  top:20px;right:-10px;padding:14px 18px;display:flex;align-items:center;
  gap:12px;font-size:13px;font-weight:600;color:#DBEAFE;
  border-radius:14px;
}
.hero__card--chip .chip-dot{
  width:10px;height:10px;border-radius:50%;background:#34D399;
  box-shadow:0 0 0 4px rgba(52,211,153,.25);flex-shrink:0;
  animation:pulse-dot 1.8s infinite;
}
.hero__card--float{
  bottom:30px;left:-10px;display:flex;align-items:center;gap:14px;
  min-width:240px;
}
.float-ico{
  width:44px;height:44px;border-radius:12px;background:linear-gradient(135deg,#1E3A8A,#3B82F6);
  display:grid;place-items:center;color:#DBEAFE;font-size:20px;
  box-shadow:inset 0 0 0 1px rgba(147,197,253,.3),0 4px 14px rgba(59,130,246,.4);flex-shrink:0;
}

/* Hero Main Card — Data Panel */
.hero__bar{display:flex;align-items:flex-end;gap:10px;height:90px;margin-top:14px}
.hero__bar span{
  flex:1;border-radius:6px 6px 2px 2px;
  opacity:0;
  transform:scaleY(0);
  transform-origin:bottom;
  box-shadow:0 2px 8px rgba(96,165,250,.3);
  animation:bar-grow 1.4s cubic-bezier(.3,.8,.2,1) forwards,bar-pulse 3s ease-in-out infinite;
}
.hero__bar span:nth-child(odd){
  background:linear-gradient(180deg,#93C5FD,#3B82F6);
}
.hero__bar span:nth-child(even){
  background:linear-gradient(180deg,#60A5FA,#2563EB);
}
.hero__bar span:nth-child(1){animation-delay:0s, 1.4s;box-shadow:0 2px 10px rgba(147,197,253,.45)}
.hero__bar span:nth-child(2){animation-delay:.1s, 1.5s}
.hero__bar span:nth-child(3){animation-delay:.2s, 1.6s;box-shadow:0 2px 10px rgba(147,197,253,.45)}
.hero__bar span:nth-child(4){animation-delay:.3s, 1.7s}
.hero__bar span:nth-child(5){animation-delay:.4s, 1.8s;box-shadow:0 2px 10px rgba(147,197,253,.45)}
.hero__bar span:nth-child(6){animation-delay:.5s, 1.9s}
.hero__bar span:nth-child(7){animation-delay:.6s, 2.0s;box-shadow:0 2px 10px rgba(147,197,253,.45)}
.hero__bar span:nth-child(8){animation-delay:.7s, 2.1s}

.hero__scope{
  position:relative;margin-top:20px;border-radius:12px;
  background:rgba(15,23,42,.6);border:1px solid rgba(96,165,250,.2);
  overflow:hidden;padding:8px;min-width:300px;
}
.scope__grid{
  position:absolute;top:0;left:0;right:0;bottom:0;
  background-image:
    linear-gradient(rgba(96,165,250,.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(96,165,250,.08) 1px, transparent 1px);
  background-size:20px 20px;pointer-events:none;
}
.scope__canvas{
  width:100%;height:auto;display:block;position:relative;z-index:2;
}
.scope__labels{
  position:absolute;top:8px;left:12px;right:12px;display:flex;justify-content:space-between;
  font-size:10px;font-weight:700;letter-spacing:1px;color:rgba(96,165,250,.6);z-index:3;
}

@keyframes bar-grow{
  0%{opacity:0;transform:scaleY(0)}
  40%{opacity:1}
  100%{opacity:1;transform:scaleY(1)}
}
@keyframes bar-pulse{
  0%,100%{filter:brightness(1);box-shadow:0 2px 8px rgba(96,165,250,.25)}
  50%{filter:brightness(1.25);box-shadow:0 4px 20px rgba(96,165,250,.65)}
}
.hero__label{display:flex;justify-content:space-between;font-size:11.5px;color:rgba(255,255,255,.75);margin-top:10px;letter-spacing:1px}

.hero__panel-title{color:#E2E8F0;font-size:13px;font-weight:700;letter-spacing:.5px}
.hero__panel-badge{color:#34D399;font-size:12px;font-weight:600;display:inline-flex;align-items:center;gap:6px}
.hero__panel-badge::before{content:"";width:8px;height:8px;border-radius:50%;background:#34D399;
  box-shadow:0 0 0 3px rgba(52,211,153,.22);animation:pulse-dot 1.8s infinite}

.hero__metric-row{display:grid;grid-template-columns:repeat(3,1fr);gap:12px;margin:18px 0}
.hero__metric-cell{
  background:rgba(15,23,42,.55);padding:14px;border-radius:10px;
  border:1px solid rgba(96,165,250,.2);
  box-shadow:0 0 0 1px rgba(147,197,253,.08) inset;
}
.hero__metric-cell:hover{border-color:rgba(96,165,250,.5);background:rgba(15,23,42,.7)}
.hero__metric-label{font-size:11px;color:rgba(226,232,240,.65);letter-spacing:.5px}
.hero__metric-value{
  font-size:24px;font-weight:800;color:#fff;
  font-variant-numeric:tabular-nums;
  text-shadow:0 0 18px rgba(96,165,250,.4);
  margin-top:6px;letter-spacing:.5px
}
.hero__metric-value .unit{color:#60A5FA;font-size:16px;font-weight:700;margin-left:2px}

.hero__card-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:20px;padding-bottom:18px;border-bottom:1px solid rgba(255,255,255,.12)}
.hero__card-top b{font-size:13px;font-weight:700;letter-spacing:1px;opacity:.9}
.hero__card-top span{font-size:11px;opacity:.6;letter-spacing:1px}

.hero__metric{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-bottom:24px}
.hero__metric div{padding:14px;background:rgba(255,255,255,.06);border-radius:12px;border:1px solid rgba(255,255,255,.08)}
.hero__metric b{display:block;font-size:28px;font-weight:800;color:#fff;letter-spacing:-1px;line-height:1;margin-bottom:6px}
.hero__metric b::after{content:"";}
.hero__metric span{font-size:11.5px;color:rgba(255,255,255,.65);letter-spacing:.5px}

@keyframes pulse-dot{0%{box-shadow:0 0 0 0 rgba(16,185,129,.4)}70%{box-shadow:0 0 0 8px rgba(16,185,129,0)}100%{box-shadow:0 0 0 0 rgba(16,185,129,.4)}}

/* ==========================================================================
   SECTION PRIMITIVES
   ========================================================================== */
section{padding:90px 0;position:relative;overflow-x:hidden;width:100%}
.section--alt{background:var(--bg)}
.section--dark{
  background:linear-gradient(135deg,#0F172A 0%,#1E3A8A 60%,#1D4ED8 100%);
  color:#fff;position:relative;overflow:hidden;
}
.section--dark::before{
  content:"";position:absolute;inset:0;
  background-image:
    radial-gradient(800px 300px at 80% 120%,rgba(96,165,250,.2),transparent 60%),
    linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:auto,36px 36px,36px 36px;
}
.section--dark .eyebrow{color:#93C5FD;border-color:rgba(147,197,253,.3);background:rgba(59,130,246,.12)}
.section--dark h2{color:#fff}
.section--dark .lead{color:rgba(255,255,255,.75)}
.section--dark .eyebrow::before{background:#fff}

/* Eyebrow + Title + Lead */
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  padding:6px 14px 6px 6px;border-radius:999px;
  background:#EFF6FF;color:var(--primary);font-size:12px;
  font-weight:700;letter-spacing:1px;border:1px solid #DBEAFE;margin-bottom:18px;
}
.eyebrow::before{
  content:"";width:20px;height:2px;background:var(--primary);border-radius:2px;margin:0 4px 0 8px;
}
h2{
  font-size:42px;font-weight:800;margin:0 0 16px;color:var(--ink);
  letter-spacing:-.8px;line-height:1.15;
}
h2 em{font-style:normal;color:var(--primary)}
.lead{color:var(--muted);font-size:16.5px;max-width:720px;margin:0 auto;line-height:1.8}
.section__head{text-align:center;margin-bottom:64px;position:relative}
.section__head h2{margin-bottom:18px}

/* ==========================================================================
   ADVANTAGES (Feature 4-UP)
   ========================================================================== */
.advantages{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.adv-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:32px 28px 34px;transition:all .35s var(--ease-out);position:relative;
  overflow:hidden;box-shadow:var(--shadow-sm);
}
.adv-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--primary),var(--accent));
  transform:scaleX(0);transform-origin:left;transition:transform .5s var(--ease-out);
  border-radius:var(--radius) var(--radius) 0 0;
}
.adv-card::after{
  content:"";position:absolute;right:-40px;top:-40px;width:160px;height:160px;
  background:radial-gradient(closest-side,rgba(37,99,235,.08),transparent 70%);
  opacity:0;transition:opacity .4s var(--ease-out);border-radius:50%;
}
.adv-card:hover{
  transform:translateY(-8px);box-shadow:var(--shadow-lg);
  border-color:#BFDBFE;background:linear-gradient(180deg,#fff,#FBFDFF);
}
.adv-card:hover::before{transform:scaleX(1)}
.adv-card:hover::after{opacity:1}
.adv-card__icon{
  width:54px;height:54px;border-radius:14px;margin-bottom:22px;
  background:linear-gradient(135deg,#EFF6FF,#DBEAFE);
  display:grid;place-items:center;color:var(--primary);font-size:24px;
  box-shadow:inset 0 0 0 1px rgba(37,99,235,.12),0 4px 10px rgba(37,99,235,.08);
  position:relative;transition:all .4s var(--ease-out);
}
.adv-card:hover .adv-card__icon{
  background:linear-gradient(135deg,#1D4ED8,#3B82F6);color:#fff;
  box-shadow:0 10px 24px rgba(37,99,235,.35),inset 0 1px 0 rgba(255,255,255,.25);
  transform:scale(1.08) rotate(-4deg);
}
.adv-card h3{font-size:18px;margin:0 0 10px;color:var(--ink);font-weight:700}
.adv-card p{color:var(--muted);font-size:14px;margin:0;line-height:1.8}

/* ==========================================================================
   INDUSTRY SOLUTIONS
   ========================================================================== */
.industries{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.ind-card{
  border-radius:var(--radius);overflow:hidden;position:relative;
  background:#fff;border:1px solid var(--line);
  transition:all .4s var(--ease-out);cursor:pointer;display:flex;flex-direction:column;
  box-shadow:var(--shadow-sm);
}
.ind-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg);border-color:#BFDBFE}
.ind-card__media{
  height:170px;position:relative;overflow:hidden;display:grid;place-items:center;
  color:#fff;font-size:64px;font-weight:800;letter-spacing:-1px;
}
.ind-card--1 .ind-card__media{background:linear-gradient(135deg,#1D4ED8,#3B82F6,#60A5FA)}
.ind-card--2 .ind-card__media{background:linear-gradient(135deg,#0891B2,#22D3EE,#67E8F9)}
.ind-card--3 .ind-card__media{background:linear-gradient(135deg,#7C3AED,#A78BFA,#C4B5FD)}
.ind-card--4 .ind-card__media{background:linear-gradient(135deg,#EA580C,#F97316,#FB923C)}
.ind-card__media::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.12) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.12) 1px,transparent 1px);
  background-size:32px 32px;opacity:.8;
}
.ind-card__media::after{
  content:"";position:absolute;width:240px;height:240px;border-radius:50%;
  background:radial-gradient(closest-side,rgba(255,255,255,.18),transparent 70%);
  top:-80px;right:-80px;transition:transform .6s var(--ease-out);
}
.ind-card:hover .ind-card__media::after{transform:scale(1.3)}
.ind-card__media span{opacity:.9;z-index:1;text-shadow:0 2px 20px rgba(0,0,0,.15)}

.ind-card__body{padding:24px 22px 24px;flex:1;display:flex;flex-direction:column}
.ind-card h3{font-size:17px;margin:0 0 8px;color:var(--ink);font-weight:700}
.ind-card p{font-size:13.5px;color:var(--muted);margin:0 0 18px;line-height:1.75;flex:1}
.ind-card__tags{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:14px}
.ind-card__tags span{font-size:11.5px;padding:4px 10px;background:var(--bg-blue);color:var(--primary);border-radius:999px;font-weight:500;letter-spacing:.3px}
.ind-card__more{font-size:13px;color:var(--primary);font-weight:600;display:inline-flex;align-items:center;gap:6px;transition:all .25s var(--ease)}
.ind-card__more::after{content:"→";transition:transform .25s var(--ease);font-weight:700}
.ind-card:hover .ind-card__more{gap:10px}
.ind-card:hover .ind-card__more::after{transform:translateX(3px)}

/* ==========================================================================
   PRODUCT CARDS (SaaS Hardware + Software)
   ========================================================================== */
.products{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.prod-card{
  border-radius:20px;padding:36px 30px 34px;position:relative;overflow:hidden;
  background:#fff;border:1px solid var(--line);transition:all .4s var(--ease-out);
  box-shadow:var(--shadow-sm);
}
.prod-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:140px;
  background:linear-gradient(180deg,var(--bg-blue),transparent 100%);
  opacity:0;transition:opacity .4s var(--ease-out);
}
.prod-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg);border-color:#BFDBFE}
.prod-card:hover::before{opacity:1}
.prod-card__badge{
  position:absolute;top:24px;right:24px;background:var(--ink);color:#fff;
  font-size:11px;padding:5px 12px;border-radius:999px;font-weight:700;
  letter-spacing:1px;z-index:2;
}
.prod-card__icon{
  width:72px;height:72px;border-radius:18px;margin-bottom:22px;
  background:linear-gradient(135deg,#1D4ED8,#3B82F6);color:#fff;
  display:grid;place-items:center;font-size:32px;font-weight:800;letter-spacing:-.5px;
  box-shadow:0 12px 30px rgba(37,99,235,.35),inset 0 1px 0 rgba(255,255,255,.25);
  position:relative;z-index:2;transition:all .4s var(--ease-out);
}
.prod-card:hover .prod-card__icon{transform:scale(1.05) rotate(4deg);box-shadow:0 20px 40px rgba(37,99,235,.4)}
.prod-card h3{font-size:20px;margin:0 0 10px;color:var(--ink);font-weight:800;position:relative;z-index:2}
.prod-card__desc{color:var(--muted);font-size:14.5px;margin:0 0 24px;line-height:1.75;position:relative;z-index:2}
.prod-card__list{list-style:none;padding:0;margin:0 0 26px;border-top:1px solid var(--line);padding-top:22px;position:relative;z-index:2}
.prod-card__list li{padding:7px 0;color:var(--ink-2);font-size:14px;display:flex;align-items:center;gap:10px;font-weight:500}
.prod-card__list li::before{content:"";width:16px;height:16px;border-radius:50%;background:linear-gradient(135deg,#10B981,#34D399);display:grid;place-items:center;color:#fff;font-size:10px;flex-shrink:0;box-shadow:0 2px 6px rgba(16,185,129,.3)}
.prod-card__list li::after{content:"✓";position:absolute;color:#fff;font-size:9px;font-weight:800;margin-left:0;opacity:0}
.prod-card__cta{font-weight:700;color:var(--primary);font-size:14px;display:inline-flex;align-items:center;gap:8px;position:relative;z-index:2;transition:all .25s var(--ease)}
.prod-card__cta::after{content:"→";font-weight:800;transition:transform .25s var(--ease)}
.prod-card:hover .prod-card__cta{color:var(--primary-600)}
.prod-card:hover .prod-card__cta::after{transform:translateX(4px)}

/* ==========================================================================
   CASES: Top Stats + Marquee + Grid
   ========================================================================== */
.cases-top{display:grid;grid-template-columns:1.3fr 1fr;gap:60px;align-items:center;margin-bottom:56px}
.cases-top h2{text-align:left;margin-top:6px}
.cases-top p{color:var(--muted);font-size:15.5px;margin:0;line-height:1.9}
.cases-top__right{
  background:#fff;padding:36px;border-radius:20px;border:1px solid var(--line);
  box-shadow:var(--shadow-sm);display:grid;grid-template-columns:1fr;gap:24px;
}
.cases-top__right > b{color:var(--ink);font-size:56px;font-weight:800;display:block;line-height:1;letter-spacing:-2px}
.cases-top__right > b::after{content:"+";color:var(--primary);font-size:36px;font-weight:800;margin-left:4px}
.cases-top__right > span{font-size:13px;color:var(--muted);letter-spacing:.5px;display:block;margin-top:-8px}
.cases-top__row{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;padding-top:24px;border-top:1px solid var(--line)}
.cases-top__row div{padding:16px;border-radius:12px;background:linear-gradient(135deg,#EFF6FF,#fff);text-align:center;border:1px solid #DBEAFE}
.cases-top__row b{display:block;font-size:24px;font-weight:800;color:var(--primary);letter-spacing:-1px;line-height:1}
.cases-top__row span{font-size:11.5px;color:var(--muted);margin-top:4px;display:block}

/* Marquee */
.marquee{
  overflow:hidden;position:relative;padding:28px 0;
  background:linear-gradient(180deg,transparent,rgba(239,246,255,.5),transparent);
  border-radius:20px;margin:0;
}
.marquee::before,.marquee::after{
  content:"";position:absolute;top:0;bottom:0;width:120px;z-index:2;pointer-events:none;
}
.marquee::before{left:0;background:linear-gradient(90deg,#fff,transparent)}
.marquee::after{right:0;background:linear-gradient(-90deg,#fff,transparent)}
.marquee__track{display:flex;gap:16px;animation:scroll-x 55s linear infinite;width:max-content}
.marquee:hover .marquee__track{animation-play-state:paused}
@keyframes scroll-x{from{transform:translateX(0)}to{transform:translateX(-50%)}}
.case-chip{
  min-width:280px;background:#fff;padding:22px 24px;border-radius:14px;
  border:1px solid var(--line);box-shadow:var(--shadow-sm);transition:all .3s var(--ease);
}
.case-chip:hover{border-color:#BFDBFE;box-shadow:var(--shadow);transform:translateY(-2px)}
.case-chip__loc{font-size:11.5px;color:var(--primary);font-weight:700;letter-spacing:2px;margin-bottom:8px;text-transform:uppercase}
.case-chip__name{font-weight:700;color:var(--ink);font-size:15.5px;margin-bottom:8px;line-height:1.45}
.case-chip__tag{display:inline-block;font-size:11.5px;color:var(--muted);padding:4px 10px;background:var(--bg);border-radius:999px}

/* Case Cards Grid */
.cases-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin-top:20px}
.case-card{
  background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;
  transition:all .35s var(--ease-out);display:flex;flex-direction:column;position:relative;
  box-shadow:var(--shadow-sm);
}
.case-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg);border-color:#BFDBFE}
.case-card__media{
  height:160px;position:relative;overflow:hidden;display:grid;place-items:center;
  font-weight:800;font-size:22px;color:#fff;letter-spacing:1px;
}
.case-card__media::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.14) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.14) 1px,transparent 1px);
  background-size:32px 32px;
}
.case-card__media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 50%,rgba(0,0,0,.2) 100%);
}
.c1{background:linear-gradient(135deg,#1E3A8A,#3B82F6)}
.c2{background:linear-gradient(135deg,#0369A1,#38BDF8)}
.c3{background:linear-gradient(135deg,#065F46,#10B981)}
.c4{background:linear-gradient(135deg,#7C2D12,#F97316)}
.c5{background:linear-gradient(135deg,#581C87,#A855F7)}
.c6{background:linear-gradient(135deg,#0F172A,#334155)}
.c7{background:linear-gradient(135deg,#92400E,#F59E0B)}
.c8{background:linear-gradient(135deg,#14532D,#22C55E)}
.c9{background:linear-gradient(135deg,#7F1D1F,#EF4444)}
.c10{background:linear-gradient(135deg,#155E75,#06B6D4)}
.c11{background:linear-gradient(135deg,#1E40AF,#60A5FA)}
.c12{background:linear-gradient(135deg,#713F12,#EAB308)}
.c13{background:linear-gradient(135deg,#4C1D95,#C084FC)}

.case-card__media span{position:relative;z-index:1;text-shadow:0 4px 20px rgba(0,0,0,.2)}
.case-card__body{padding:24px 22px 22px;flex:1;display:flex;flex-direction:column}
.case-card__loc{font-size:11.5px;color:var(--primary);font-weight:700;letter-spacing:2px;margin-bottom:8px;text-transform:uppercase}
.case-card h3{font-size:17px;margin:0 0 12px;color:var(--ink);line-height:1.45;font-weight:700}
.case-card p{font-size:13.5px;color:var(--muted);margin:0 0 18px;line-height:1.8;flex:1}
.case-card__meta{display:flex;flex-wrap:wrap;gap:6px;margin-bottom:14px}
.case-card__meta span{font-size:11.5px;padding:4px 10px;background:var(--bg);color:var(--ink-2);border-radius:999px;font-weight:500}
.case-card__cta{font-size:13px;color:var(--primary);font-weight:600;display:inline-flex;align-items:center;gap:6px;margin-top:auto;transition:all .25s var(--ease)}
.case-card__cta::after{content:"→";font-weight:800;transition:transform .25s var(--ease)}
.case-card:hover .case-card__cta::after{transform:translateX(3px)}

/* Case Detail (Alt layouts) */
.case-detail{
  background:#fff;border-radius:22px;padding:48px 44px;
  border:1px solid var(--line);box-shadow:var(--shadow-sm);
}
.case-detail__row{display:grid;grid-template-columns:1fr 1fr;gap:80px;margin-bottom:56px;align-items:center}
.case-detail__row:nth-child(even){direction:rtl}
.case-detail__row:nth-child(even) > *{direction:ltr}
.case-detail h3{font-size:28px;color:var(--ink);margin:0 0 14px;font-weight:800;letter-spacing:-.5px;line-height:1.3}
.case-detail__tag{display:inline-block;font-size:12px;padding:6px 14px;border-radius:999px;background:var(--bg-blue);color:var(--primary);font-weight:700;margin-bottom:14px;letter-spacing:1px}
.case-detail p{color:var(--ink-2);font-size:15px;margin:0 0 18px;line-height:2}
.case-detail__visual{
  min-height:300px;border-radius:20px;padding:40px;color:#fff;
  background:linear-gradient(135deg,#1D4ED8 0%,#3B82F6 50%,#60A5FA 100%);
  display:grid;place-items:center;position:relative;overflow:hidden;
  box-shadow:0 30px 60px -20px rgba(37,99,235,.35);
}
.case-detail__visual::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.1) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.1) 1px,transparent 1px);
  background-size:36px 36px;
}
.case-detail__visual b{font-size:72px;position:relative;letter-spacing:2px;line-height:1;text-align:center;opacity:.95;font-weight:800}
.case-detail__visual span{position:relative;display:block;font-size:12px;margin-top:16px;letter-spacing:4px;opacity:.8;text-align:center;font-weight:700}
.case-detail__list{list-style:none;padding:0;margin:18px 0 0}
.case-detail__list li{padding:12px 0 12px 40px;position:relative;color:var(--ink-2);font-size:14.5px;border-bottom:1px solid var(--line);line-height:1.8}
.case-detail__list li::before{content:"✓";position:absolute;left:0;top:12px;color:var(--primary);font-weight:800;font-size:14px;width:24px;height:24px;border-radius:8px;background:var(--bg-blue);display:grid;place-items:center}
.case-detail__list li:last-child{border-bottom:0}

/* ==========================================================================
   TRUST / DARK SECTION — Stats
   ========================================================================== */
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;text-align:center;position:relative}
.trust-item{
  padding:36px 24px;border-radius:20px;background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.12);transition:all .35s var(--ease-out);
  position:relative;overflow:hidden;backdrop-filter:blur(10px);
}
.trust-item::before{
  content:"";position:absolute;top:0;left:50%;transform:translateX(-50%);
  width:50px;height:3px;background:linear-gradient(90deg,transparent,#60A5FA,transparent);
  opacity:.5;border-radius:0 0 4px 4px;
}
.trust-item:hover{background:rgba(255,255,255,.1);transform:translateY(-6px);border-color:rgba(147,197,253,.3);box-shadow:0 20px 40px -20px rgba(96,165,250,.3)}
.trust-item b{
  font-size:52px;font-weight:800;letter-spacing:-2px;
  background:linear-gradient(135deg,#fff,#93C5FD);-webkit-background-clip:text;background-clip:text;color:transparent;
  display:block;line-height:1;margin-bottom:14px;
}
.trust-item span{font-size:14px;color:rgba(255,255,255,.85);letter-spacing:.5px;font-weight:500}

/* ==========================================================================
   CTA BANNERS
   ========================================================================== */
.cta-row{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.cta-banner{
  border-radius:24px;padding:50px 44px;color:#fff;position:relative;overflow:hidden;
  box-shadow:var(--shadow-sm);transition:all .4s var(--ease-out);
}
.cta-banner:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.cta-banner--blue{
  background:linear-gradient(135deg,#1E3A8A 0%,#1D4ED8 60%,#3B82F6 100%);
  box-shadow:0 30px 60px -20px rgba(37,99,235,.35);
}
.cta-banner--taobao{
  background:linear-gradient(135deg,#C2410C 0%,#F97316 55%,#FB923C 100%);
  box-shadow:0 30px 60px -20px rgba(249,115,22,.4);
}
.cta-banner::after{
  content:"";position:absolute;right:-80px;bottom:-80px;width:320px;height:320px;
  border-radius:50%;background:radial-gradient(closest-side,rgba(255,255,255,.15),transparent 70%);
}
.cta-banner::before{
  content:"";position:absolute;right:60px;top:-100px;width:220px;height:220px;
  border-radius:50%;background:radial-gradient(closest-side,rgba(255,255,255,.1),transparent 70%);
}
.cta-banner h3{font-size:30px;margin:0 0 14px;font-weight:800;position:relative;letter-spacing:-.5px;line-height:1.25}
.cta-banner p{margin:0 0 28px;font-size:15px;opacity:.9;max-width:480px;position:relative;line-height:1.8}
.cta-banner .btn{position:relative;background:#fff;color:var(--ink);padding:13px 28px;font-weight:700;box-shadow:0 10px 24px rgba(0,0,0,.15)}
.cta-banner--taobao .btn{background:#fff;color:var(--orange-600)}
.cta-banner .btn:hover{transform:translateY(-2px)}

/* ==========================================================================
   FORM SECTION
   ========================================================================== */
.form-wrap{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:stretch}
.form-left{padding:6px 0}
.form-left h2{text-align:left;font-size:38px;margin-bottom:16px;line-height:1.2}
.form-left > p{color:var(--muted);font-size:15.5px;margin:0 0 36px;line-height:1.9}

.form-why{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:28px}
.form-why div{background:#fff;padding:22px;border-radius:16px;border:1px solid var(--line);box-shadow:var(--shadow-xs);transition:all .3s var(--ease)}
.form-why div:hover{border-color:#BFDBFE;box-shadow:var(--shadow)}
.form-why b{color:var(--primary);font-size:26px;display:block;font-weight:800;letter-spacing:-1px;margin-bottom:4px;line-height:1}
.form-why b::after{content:"";}
.form-why span{font-size:13px;color:var(--muted);letter-spacing:.3px}

.form-card{
  background:#fff;padding:40px;border-radius:24px;border:1px solid var(--line);
  box-shadow:var(--shadow-md);position:relative;overflow:hidden;
}
.form-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:4px;
  background:linear-gradient(90deg,#1D4ED8,#60A5FA,#1D4ED8);
  background-size:200% 100%;animation:shine 4s linear infinite;
}
@keyframes shine{to{background-position:-200% 0}}

.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{margin-bottom:18px}
.field label{display:block;font-size:13px;font-weight:700;color:var(--ink);margin-bottom:8px;letter-spacing:.3px}
.field label::after{content:" *";color:#EF4444;font-weight:600}
.field input,.field select,.field textarea{
  width:100%;padding:13px 16px;border:1.5px solid #E2E8F0;border-radius:12px;
  font-family:inherit;font-size:14.5px;color:var(--ink);background:#FAFBFC;
  transition:all .25s var(--ease);outline:none;line-height:1.5;
}
.field input:hover,.field select:hover,.field textarea:hover{border-color:#CBD5E1;background:#fff}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--primary);background:#fff;box-shadow:0 0 0 5px rgba(37,99,235,.12);
}
.field textarea{resize:vertical;min-height:120px;font-size:14.5px;line-height:1.75}
.form-message{
  margin:4px 0 14px;
  padding:11px 14px;
  border-radius:12px;
  border:1px solid var(--line);
  background:#fff;
  color:var(--ink-2);
  font-size:13.5px;
  line-height:1.5;
}
.form-message[hidden]{display:none}
.form-message--submitting{background:#EFF6FF;border-color:#BFDBFE;color:#1D4ED8}
.form-message--success{background:#ECFDF5;border-color:#A7F3D0;color:#047857}
.form-message--error{background:#FEF2F2;border-color:#FECACA;color:#B91C1C}
.form-submit{margin-top:8px}
.form-submit .btn{width:100%;justify-content:center;padding:15px;font-size:15px;font-weight:700;letter-spacing:.5px}
.form-hint{font-size:12.5px;color:var(--muted);text-align:center;margin-top:14px;letter-spacing:.3px}

/* ==========================================================================
   NEWS CARDS
   ========================================================================== */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  background:#fff;border:1px solid var(--line);border-radius:20px;overflow:hidden;
  transition:all .35s var(--ease-out);box-shadow:var(--shadow-sm);display:flex;flex-direction:column;
}
.news-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg);border-color:#BFDBFE}
.news-card__media{
  height:180px;background:linear-gradient(135deg,#1D4ED8,#3B82F6);position:relative;
  display:grid;place-items:center;color:#fff;font-size:44px;font-weight:800;overflow:hidden;
}
.news-card__media::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.12) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.12) 1px,transparent 1px);
  background-size:32px 32px;
}
.news-card__media span{position:relative;z-index:1;text-shadow:0 4px 16px rgba(0,0,0,.2)}
.news-card__body{padding:28px 24px 24px;flex:1;display:flex;flex-direction:column}
.news-card__cat{display:inline-block;font-size:11.5px;padding:5px 12px;border-radius:999px;background:var(--bg-blue);color:var(--primary);font-weight:700;letter-spacing:1px;margin-bottom:12px}
.news-card__date{font-size:12.5px;color:var(--muted);letter-spacing:.3px;margin-bottom:10px;font-weight:500}
.news-card h3{font-size:18px;margin:0 0 12px;color:var(--ink);line-height:1.5;font-weight:700;transition:color .25s var(--ease)}
.news-card:hover h3{color:var(--primary)}
.news-card p{font-size:14px;color:var(--muted);margin:0 0 20px;line-height:1.8;flex:1}

/* ==========================================================================
   PRODUCT GRID (Alternate Style)
   ========================================================================== */
.prod-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.product-item{
  background:#fff;border:1px solid var(--line);border-radius:18px;overflow:hidden;
  transition:all .35s var(--ease-out);display:flex;flex-direction:column;box-shadow:var(--shadow-sm);
}
.product-item:hover{transform:translateY(-6px);box-shadow:var(--shadow-md);border-color:#BFDBFE}
.product-item__media{
  height:200px;background:linear-gradient(135deg,#EFF6FF,#DBEAFE);display:grid;place-items:center;
  color:var(--primary);font-size:52px;font-weight:800;letter-spacing:-1px;position:relative;overflow:hidden;
}
.product-item__media::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(37,99,235,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(37,99,235,.07) 1px,transparent 1px);
  background-size:32px 32px;
}
.product-item__media span{position:relative;z-index:1;opacity:.9;text-shadow:0 4px 16px rgba(37,99,235,.12)}
.product-item__body{padding:24px 22px;flex:1;display:flex;flex-direction:column}
.product-item h3{font-size:18px;margin:0 0 10px;color:var(--ink);font-weight:700}
.product-item p{font-size:14px;color:var(--muted);margin:0 0 16px;flex:1;line-height:1.75}
.product-item__spec{font-size:13px;color:var(--ink-2);padding:14px;background:var(--bg);border-radius:12px;margin-bottom:16px;line-height:1.8;font-weight:500}
.product-item__spec b{color:var(--primary)}

/* ==========================================================================
   PARTNER FLOW STEPS
   ========================================================================== */
.flow-row{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;margin-top:30px}
.flow-step{
  background:#fff;padding:26px 22px 24px;border-radius:16px;border:1px solid var(--line);
  text-align:center;position:relative;box-shadow:var(--shadow-sm);transition:all .35s var(--ease);
}
.flow-step:hover{transform:translateY(-4px);border-color:#BFDBFE;box-shadow:var(--shadow)}
.flow-step b{font-size:28px;font-weight:800;color:var(--primary);opacity:.2;position:absolute;top:10px;right:16px;line-height:1}
.flow-step h4{font-size:16px;margin:6px 0 8px;color:var(--ink);font-weight:700}
.flow-step p{font-size:13px;color:var(--muted);margin:0;line-height:1.7}

/* ==========================================================================
   MILESTONES / TIMELINE TOKENS
   ========================================================================== */
.milestones{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-top:30px}
.ms{background:#fff;padding:24px 22px;border-radius:16px;border:1px solid var(--line);box-shadow:var(--shadow-sm);transition:all .35s var(--ease);border-left:3px solid var(--primary)}
.ms:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#BFDBFE}
.ms b{display:block;color:var(--primary);font-size:26px;font-weight:800;margin-bottom:6px;line-height:1;letter-spacing:-.5px}
.ms span{font-size:13px;color:var(--ink-2);font-weight:500}

/* ==========================================================================
   ABOUT / COMPANY
   ========================================================================== */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.about-grid p{font-size:15.5px;color:var(--ink-2);line-height:2;margin:0 0 18px}
.about-visual{
  min-height:380px;border-radius:24px;background:linear-gradient(135deg,#1D4ED8,#3B82F6,#60A5FA);
  position:relative;overflow:hidden;padding:44px;color:#fff;display:grid;place-items:center;
  box-shadow:0 30px 60px -20px rgba(37,99,235,.4);
}
.about-visual::after{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.1) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.1) 1px,transparent 1px);background-size:36px 36px}
.about-visual b{position:relative;font-size:84px;font-weight:800;letter-spacing:2px;text-align:center;line-height:1;opacity:.95;text-shadow:0 10px 30px rgba(0,0,0,.2)}
.about-visual span{position:relative;display:block;font-size:12px;letter-spacing:4px;margin-top:18px;opacity:.85;text-align:center;font-weight:700}

/* ==========================================================================
   FAQ
   ========================================================================== */
.faq{max-width:920px;margin:0 auto}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:16px;padding:22px 26px 22px 70px;
  margin-bottom:14px;transition:all .3s var(--ease);position:relative;box-shadow:var(--shadow-xs);
}
.faq-item:hover{border-color:#BFDBFE;box-shadow:var(--shadow);transform:translateY(-1px)}
.faq-item h4{font-size:16.5px;margin:0 0 10px;color:var(--ink);font-weight:700;line-height:1.5}
.faq-item::before{
  content:"";position:absolute;left:22px;top:22px;width:32px;height:32px;border-radius:10px;
  background:linear-gradient(135deg,#1D4ED8,#3B82F6);display:grid;place-items:center;color:#fff;
  font-size:14px;font-weight:800;box-shadow:0 8px 16px rgba(37,99,235,.25);
}
.faq-item:nth-child(1)::before{content:"1"}
.faq-item:nth-child(2)::before{content:"2"}
.faq-item:nth-child(3)::before{content:"3"}
.faq-item:nth-child(4)::before{content:"4"}
.faq-item:nth-child(5)::before{content:"5"}
.faq-item:nth-child(6)::before{content:"6"}
.faq-item p{font-size:14.5px;color:var(--muted);margin:0;line-height:1.9}

/* ==========================================================================
   ADMIN BACKOFFICE
   ========================================================================== */
.admin-page{background:var(--bg)}
.admin-top{
  min-height:64px;padding:14px 24px;background:#fff;border-bottom:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:18px;position:sticky;top:0;z-index:10;
  box-shadow:var(--shadow-xs);
}
.admin-top b{display:block;font-size:17px;color:var(--ink);font-weight:700}
.admin-top span{display:block;font-size:12.5px;color:var(--muted);margin-top:2px}
.admin-shell{max-width:1320px;margin:0 auto;padding:24px}
.admin-panel{
  background:#fff;border:1px solid var(--line);border-radius:16px;padding:24px;margin-bottom:20px;
  box-shadow:var(--shadow-sm);
}
.admin-toolbar{display:grid;grid-template-columns:1.2fr 1fr auto auto;gap:14px;align-items:end;margin-bottom:18px}
.admin-toolbar label{display:block;font-size:12px;color:var(--muted);font-weight:700;margin-bottom:8px;letter-spacing:.5px}
.admin-toolbar input,.admin-toolbar select{
  width:100%;height:40px;border:1.5px solid var(--line);border-radius:10px;padding:0 14px;
  font:inherit;color:var(--ink);background:#FAFBFC;transition:all .2s var(--ease);
}
.admin-toolbar input:focus,.admin-toolbar select:focus{border-color:var(--primary);background:#fff;box-shadow:0 0 0 4px rgba(37,99,235,.12);outline:none}
.admin-grid{display:grid;grid-template-columns:320px 1fr;gap:18px}
.admin-list{border:1px solid var(--line);border-radius:12px}

/* ==========================================================================
   SUBNAV DROPDOWN — 二级下拉导航
   ========================================================================== */
.nav-item{position:relative}
.nav-item__link{cursor:pointer}
.nav-item__link::after{
  content:"▾";display:inline-block;margin-left:4px;font-size:10px;
  opacity:.55;transition:all .25s var(--ease);
}
.nav-item:hover .nav-item__link::after{opacity:1;transform:rotate(180deg)}

.subnav{
  position:absolute;top:100%;left:50%;transform:translateX(-50%) translateY(8px);
  background:#fff;border:1px solid var(--line);border-radius:14px;
  padding:12px;min-width:200px;box-shadow:0 18px 40px -12px rgba(15,23,42,.18);
  opacity:0;visibility:hidden;transition:all .25s var(--ease);z-index:200;
  display:grid;grid-template-columns:1fr;gap:2px;
}
.subnav--wide{min-width:380px;grid-template-columns:1fr 1fr;gap:4px 18px;padding:18px}
.nav-item:hover .subnav{opacity:1;visibility:visible;transform:translateX(-50%) translateY(0)}
.subnav::before{
  content:"";position:absolute;top:-6px;left:50%;transform:translateX(-50%);
  width:12px;height:12px;background:#fff;border-left:1px solid var(--line);border-top:1px solid var(--line);
  transform:translateX(-50%) rotate(45deg);
}
.subnav a{
  padding:10px 14px;border-radius:8px;font-size:14px;color:var(--ink-2);
  font-weight:500;transition:all .2s var(--ease);white-space:nowrap;
  display:flex;align-items:center;gap:8px;
}
.subnav a::before{
  content:"";width:4px;height:4px;border-radius:50%;background:var(--accent);
  opacity:0;transition:opacity .2s;flex-shrink:0;
}
.subnav a:hover{background:var(--bg-blue);color:var(--primary)}
.subnav a:hover::before{opacity:1;background:var(--primary)}
.subnav--wide a{font-size:13.5px}

/* ==========================================================================
   FLOATING CONTACT
   ========================================================================== */
.floating{position:fixed;right:20px;bottom:24px;z-index:80;display:flex;flex-direction:column;gap:10px}
.floating button{
  width:48px;height:48px;border-radius:14px;background:linear-gradient(135deg,#1D4ED8,#3B82F6);color:#fff;
  box-shadow:0 10px 24px rgba(37,99,235,.35);font-size:18px;display:grid;place-items:center;
  transition:all .25s var(--ease);
}
.floating button:first-child{background:linear-gradient(135deg,#10B981,#34D399);box-shadow:0 10px 24px rgba(16,185,129,.35)}
.floating button:hover{transform:translateY(-3px) scale(1.05)}
.float-panel{
  position:absolute;right:60px;bottom:0;background:#fff;padding:18px 18px 16px;border-radius:18px;
  box-shadow:var(--shadow-md);min-width:240px;display:none;border:1px solid var(--line);text-align:center;
}
.float-panel.show{display:block}
.float-panel b{color:var(--primary);font-size:15px;font-weight:800;display:block;margin:12px 0 4px;letter-spacing:.5px}
.float-panel span{font-size:12px;color:var(--muted);letter-spacing:.3px;display:block}
.float-panel__qr{
  width:180px;height:180px;margin:0 auto;border-radius:12px;padding:8px;
  background:#fff;border:1px solid #E2E8F0;
}
.float-panel__qr img{width:100%;height:100%;display:block;border-radius:6px}
.float-panel__tag{
  display:inline-block;margin-top:10px;padding:4px 12px;border-radius:999px;
  background:linear-gradient(135deg,#EFF6FF,#DBEAFE);color:var(--primary);
  font-size:11.5px;font-weight:700;letter-spacing:.5px;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.footer{
  background:linear-gradient(135deg,#0F172A 0%,#1E293B 50%,#1E3A8A 100%);
  color:rgba(255,255,255,.75);padding:60px 0 0;margin-top:0;position:relative;overflow:hidden;
}
.footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(96,165,250,.5),transparent);
}
.footer::after{
  content:"";position:absolute;top:0;right:0;width:500px;height:500px;
  background:radial-gradient(closest-side,rgba(37,99,235,.2),transparent 70%);
  pointer-events:none;
}
.footer .container{position:relative}
.footer__top{
  display:grid;grid-template-columns:1.8fr 1fr 1fr 1fr 1.2fr;gap:48px;
  padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,.08);
  align-items:start;
}
.footer__brand p{
  font-size:14px;line-height:1.9;color:rgba(255,255,255,.55);margin:14px 0;max-width:380px;
}
.footer__brand .brand__mark{
  background:linear-gradient(135deg,#2563EB,#60A5FA);color:#fff;
  box-shadow:0 6px 20px rgba(37,99,235,.45);width:44px;height:44px;border-radius:12px;
  display:grid;place-items:center;font-size:18px;font-weight:800;flex-shrink:0;
}
.footer__brand .brand__text{line-height:1.15}
.footer__brand .brand__name{font-weight:800;font-size:18px;color:#fff;letter-spacing:.5px}
.footer__brand .brand__sub{font-size:12px;color:rgba(255,255,255,.55);letter-spacing:1.5px;margin-top:3px}

.footer__col h4{
  color:#fff;font-size:14px;margin:0 0 18px;font-weight:700;letter-spacing:.5px;
  padding-bottom:12px;border-bottom:1px solid rgba(255,255,255,.08);position:relative;
}
.footer__col h4::after{
  content:"";position:absolute;bottom:-1px;left:0;width:32px;height:2px;
  background:linear-gradient(90deg,#60A5FA,transparent);border-radius:2px;
}
.footer__col a{
  color:rgba(255,255,255,.65);font-size:14px;display:block;padding:6px 0;
  transition:all .2s var(--ease);line-height:1.7;
}
.footer__col a:hover{color:#fff;padding-left:6px}

.footer__contact{font-size:14px;line-height:2;color:rgba(255,255,255,.7)}
.footer__contact b{color:#fff;font-size:16px;font-weight:700;letter-spacing:.3px}
.footer__contact a{display:inline;padding:0;color:var(--accent)}
.footer__contact a:hover{color:#fff}

.footer__bottom{
  padding:22px 0;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px;
  color:rgba(255,255,255,.5);font-size:13px;letter-spacing:.3px;border-top:1px solid rgba(255,255,255,.06);
}
.footer__bottom a{color:rgba(255,255,255,.5);font-size:13px;transition:color .2s}
.footer__bottom a:hover{color:#fff}

/* ==========================================================================
   RESPONSIVE
   ========================================================================== */
@media(max-width:1280px){
  .container{max-width:100%;padding:0 28px}
  .footer__top{grid-template-columns:1.5fr 1fr 1fr 1fr 1fr;gap:32px}
}

@media(max-width:1100px){
  .topbar__inner{height:64px;gap:16px}
  .nav{gap:0}
  .nav a{padding:8px 10px;font-size:13.5px}
  .top-cta{gap:8px}
  .top-cta .btn{padding:9px 16px;font-size:13px}
  .brand__name{font-size:15px}
  .footer__top{grid-template-columns:1.3fr 1fr 1fr;gap:40px 36px}
}

@media(max-width:960px){
  .nav{
    position:fixed;top:0;right:0;bottom:0;
    width:min(84vw,360px);max-width:100vw;
    background:#fff;
    display:flex;flex-direction:column;align-items:stretch;
    padding:80px 20px 24px;gap:2px;
    box-shadow:-12px 0 40px rgba(15,23,42,.15);
    transform:translateX(100%);opacity:0;
    transition:transform .32s var(--ease),opacity .2s;
    z-index:100;overflow-y:auto;
    border-left:1px solid #E5ECF5;
  }
  .nav.is-open{transform:translateX(0);opacity:1;display:flex}
  .nav::before{
    content:"";position:absolute;top:0;left:0;right:0;height:62px;
    background:linear-gradient(180deg,rgba(59,130,246,.04),transparent);
    pointer-events:none;
  }
  .nav a{
    padding:14px 16px;border-radius:10px;font-size:15px;
    display:flex;align-items:center;justify-content:space-between;
    color:var(--ink-2);font-weight:500;
  }
  .nav a.is-active{color:var(--primary);background:#EFF6FF;font-weight:600}
  .nav__quote{margin-top:12px;display:flex!important;justify-content:center;font-weight:700!important}
  .nav-item{width:100%}
  .nav-item__link::after{content:"▾";font-size:10px;color:var(--primary);margin-left:auto;padding-left:8px;transform:none;transition:none;top:auto;right:auto;bottom:auto;position:static;border:0}
  .nav-item.is-open > .nav-item__link::after{transform:rotate(180deg)!important;content:"▴"}
  .nav-item:hover .nav-item__link::after{transform:none;opacity:1}
  .nav-item .subnav{
    position:static;display:none;opacity:1;visibility:visible;transform:none;
    box-shadow:none;border:0;padding:0;margin:4px 0 8px;
    background:transparent;
  }
  .nav-item.is-open .subnav{display:flex;flex-direction:column;gap:2px}
  .nav-item .subnav a{
    padding:10px 16px 10px 36px;font-size:13.5px;color:var(--muted);
    background:transparent;border-radius:8px;position:relative;
  }
  .nav-item .subnav a::before{
    content:"";position:absolute;left:22px;top:50%;width:4px;height:4px;border-radius:50%;
    background:var(--primary);opacity:.4;transform:translateY(-50%);
  }
  .nav-item .subnav a:hover{color:var(--primary);background:#EFF6FF}
  .menu-toggle{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;font-size:20px}
  .topbar__inner{height:62px;gap:12px;padding:0 20px}
  .top-cta{gap:8px}
  .top-cta .btn--taobao{display:none}
  .hero__inner{grid-template-columns:1fr;gap:36px;padding:72px 0 84px}
  .hero h1{font-size:40px}
  .hero__stats{grid-template-columns:repeat(2,1fr);gap:16px 32px;flex-wrap:wrap;display:grid}
  .hero__stats > div{border-right:0;padding:0}
  .hero__visual{min-height:320px}
  .hero__video{height:200px}
  .advantages{grid-template-columns:repeat(2,1fr);gap:16px}
  .products{grid-template-columns:1fr;gap:18px}
  .cases-grid{grid-template-columns:1fr;gap:16px}
  .prod-grid{grid-template-columns:1fr;gap:16px}
  .news-grid{grid-template-columns:1fr;gap:16px}
  .footer__top{grid-template-columns:1fr 1fr;gap:36px;padding-bottom:32px}
  .footer__contact{grid-column:1/-1}
  .footer{padding:48px 0 0}
  section{padding:72px 0}
  .cases-top{grid-template-columns:1fr;gap:36px}
}

@media(max-width:720px){
  .container{padding:0 16px}
  .topbar__inner{padding:0 16px;gap:10px;height:58px}
  .brand__mark{width:36px;height:36px;font-size:16px;border-radius:10px}
  .brand__name{font-size:15px}
  .brand__sub{font-size:10.5px;letter-spacing:1px}
  .nav__quote{display:none}
  .top-cta .btn{padding:8px 14px;font-size:12.5px;border-radius:999px}
  .top-cta .btn--ghost{display:none}
  .hero{padding-top:20px}
  .hero__inner{padding:56px 0 68px;gap:28px}
  .hero__eyebrow{font-size:11.5px;padding:6px 12px;gap:8px}
  .hero h1{font-size:32px;line-height:1.25;margin:14px 0 12px;letter-spacing:-.5px}
  .hero__sub{font-size:15px;margin-bottom:6px}
  .hero__desc{font-size:14px;margin-bottom:22px;line-height:1.8}
  .hero__cta{flex-direction:row;flex-wrap:wrap;gap:10px;margin-bottom:28px}
  .hero__cta .btn{padding:11px 18px;font-size:13.5px}
  .hero__cta .btn--lg{padding:11px 18px;font-size:13.5px}
  .hero__stats{grid-template-columns:repeat(2,1fr);gap:14px 24px;padding-top:22px}
  .hero__stats b{font-size:22px;letter-spacing:-.5px}
  .hero__stats span{font-size:11.5px}
  .hero__visual{min-height:280px}
  .hero__video{height:150px}
  h2{font-size:26px;letter-spacing:-.5px;margin-bottom:12px}
  .eyebrow{font-size:11px;letter-spacing:1px;padding:5px 12px}
  .section__head{margin-bottom:40px}
  section{padding:56px 0}
  .advantages{grid-template-columns:1fr;gap:14px}
  .adv-card{padding:26px 22px}
  .adv-card__icon{width:48px;height:48px;margin-bottom:18px}
  .adv-card h3{font-size:16px}
  .adv-card p{font-size:13.5px;line-height:1.75}
  .products{grid-template-columns:1fr;gap:16px}
  .prod-card{padding:28px 22px}
  .prod-card__icon{width:56px;height:56px;font-size:22px;margin-bottom:18px}
  .prod-card h3{font-size:17px}
  .prod-card__desc{font-size:13.5px;margin-bottom:18px}
  .prod-card__list li{padding:6px 0;font-size:13px}
  .industries{grid-template-columns:1fr;gap:14px}
  .ind-card__media{height:140px;font-size:44px}
  .ind-card__body{padding:20px 18px}
  .ind-card h3{font-size:15.5px}
  .ind-card p{font-size:13px}
  .cases-grid{grid-template-columns:1fr;gap:14px}
  .case-card__media{height:140px;font-size:18px}
  .case-card__body{padding:20px 18px}
  .case-card h3{font-size:15.5px}
  .case-card__loc{font-size:11px;letter-spacing:1.5px}
  .cases-top{grid-template-columns:1fr;gap:28px;margin-bottom:40px}
  .cases-top__right{padding:24px}
  .cases-top__row{grid-template-columns:1fr;gap:10px}
  .cases-top__row div{padding:12px}
  .trust-grid{grid-template-columns:repeat(2,1fr);gap:14px;text-align:center}
  .trust-item{padding:22px 14px;border-radius:14px}
  .trust-item b{font-size:34px;margin-bottom:8px}
  .trust-item span{font-size:13px}
  .footer__top{grid-template-columns:1fr;gap:28px;padding-bottom:28px}
  .footer__col h4{margin-bottom:14px;padding-bottom:10px;font-size:13px}
  .footer__col a{padding:4px 0;font-size:13.5px}
  .footer__brand p{font-size:13px;line-height:1.85;margin:10px 0 0;max-width:100%}
  .footer{padding:40px 0 0}
  .footer__bottom{padding:18px 0;font-size:12px;flex-direction:column;text-align:center;gap:8px}
  .floating{right:12px;bottom:16px;gap:8px}
  .floating button{width:42px;height:42px;border-radius:12px;font-size:16px}
  .cta-row{grid-template-columns:1fr;gap:14px}
  .cta-banner{padding:32px 26px;border-radius:18px}
  .cta-banner h3{font-size:22px;margin-bottom:10px}
  .cta-banner p{font-size:13.5px;margin-bottom:20px}
  .cta-banner .btn{padding:11px 22px;font-size:13.5px}
  .hero__bar{height:72px;margin-top:10px}
  .hero__metric{grid-template-columns:repeat(3,1fr);gap:10px;margin-bottom:18px}
  .hero__metric div{padding:10px;border-radius:8px}
  .hero__metric b{font-size:18px}
  .hero__metric span{font-size:10.5px}
  .hero__card--main{top:16px;padding:20px}
  .faq{max-width:100%}
  .faq-item{padding:18px 20px 18px 58px;border-radius:12px;margin-bottom:12px}
  .faq-item h4{font-size:14.5px;margin-bottom:8px}
  .faq-item p{font-size:13px;line-height:1.8}
  .faq-item::before{left:16px;top:16px;width:28px;height:28px;font-size:12px;border-radius:8px}
  .news-grid{grid-template-columns:1fr;gap:14px}
  .news-card__media{height:160px;font-size:36px}
  .news-card__body{padding:22px 20px}
  .news-card h3{font-size:16px}
  .news-card p{font-size:13px}
  .news-card__cat{font-size:11px;padding:4px 10px}
  .news-card__date{font-size:11.5px;margin-bottom:8px}
  .prod-grid{grid-template-columns:1fr;gap:14px}
  .product-item__media{height:160px;font-size:40px}
  .product-item__body{padding:20px 18px}
  .product-item h3{font-size:16px}
  .product-item__spec{font-size:12.5px;padding:12px}
}

@media(max-width:520px){
  .hero h1{font-size:28px;line-height:1.25}
  .hero__sub{font-size:14px}
  .h2{font-size:22px}
  h2{font-size:22px;margin-bottom:10px}
  .hero__cta{flex-direction:column;align-items:stretch}
  .hero__cta .btn{justify-content:center}
  .hero__stats{grid-template-columns:repeat(2,1fr);gap:12px}
  .hero__stats b{font-size:20px}
  .hero__stats span{font-size:11px;letter-spacing:.3px}
  .topbar__inner{height:54px;padding:0 12px}
  .brand__mark{width:34px;height:34px;font-size:14px;border-radius:10px}
  .brand__name{font-size:14px;line-height:1.1}
  .brand__sub{display:none}
  .menu-toggle{width:36px;height:36px;font-size:18px;border-radius:8px;padding:0}
  .top-cta .btn{padding:8px 12px;font-size:12.5px}
  .top-cta .btn--primary{display:inline-flex}
  .top-cta .btn--taobao{display:none}
  .container{padding:0 14px}
  .floating button{width:38px;height:38px;font-size:14px;border-radius:10px}
  .float-panel{right:48px;padding:12px 14px;min-width:180px}
  .float-panel b{font-size:14px}
  .float-panel span{font-size:11px}
  .lang-switch{font-size:11px;min-width:38px;height:30px;padding:0 8px}
}

/* ==========================================================================
   LANGUAGE SWITCHER
   ========================================================================== */
.lang-switch{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:46px;height:34px;padding:0 12px;border-radius:999px;
  border:1.5px solid var(--primary);color:var(--primary);
  font-size:12px;font-weight:700;letter-spacing:.5px;
  text-decoration:none;transition:all .2s var(--ease);flex-shrink:0;
}
.lang-switch:hover{background:var(--primary);color:#fff}
.lang-switch--active{
  background:var(--primary);color:#fff;cursor:default;
  pointer-events:none;
}