/* ===================== 基础变量（青蓝/编程感）===================== */
:root{
  --primary:#06b6d4;
  --primary-2:#3b82f6;
  --primary-3:#0ea5e9;
  --accent:#10b981;

  --bg-light:#f4f8fb;
  --bg-light-2:#ffffff;
  --bg-dark:#06101e;
  --bg-dark-2:#0a1628;
  --bg-card-dark:#0f1d33;

  --text:#0f172a;
  --text-2:#475569;
  --text-3:#94a3b8;
  --text-on-dark:#dde9f5;
  --text-on-dark-2:#9bb1c9;
  --text-on-dark-3:#5d7793;

  --border:rgba(15,23,42,0.08);
  --border-dark:rgba(255,255,255,0.08);

  --radius:14px;
  --radius-lg:20px;
  --shadow-sm:0 2px 8px rgba(15,23,42,0.04);
  --shadow:0 12px 32px rgba(15,23,42,0.06);
  --shadow-lg:0 24px 48px rgba(15,23,42,0.10);

  --gradient-cyan:linear-gradient(135deg,#06b6d4 0%,#0ea5e9 50%,#3b82f6 100%);
  --gradient-text:linear-gradient(90deg,#67e8f9,#7dd3fc,#93c5fd);
  --gradient-text-light:linear-gradient(90deg,#06b6d4,#0ea5e9,#3b82f6);
  --gradient-emerald:linear-gradient(135deg,#10b981 0%,#06b6d4 100%);

  --code-font:'HYQiHei','Microsoft YaHei','PingFang SC','Noto Sans SC',sans-serif;
}

/* ===================== Reset ===================== */
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:'HYQiHei','Microsoft YaHei','PingFang SC','Noto Sans SC',sans-serif;
  color:var(--text);line-height:1.7;background:#fff;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
img{max-width:100%;display:block}
button{font:inherit;cursor:pointer;border:none;background:none;color:inherit}

.container{max-width:1200px;margin:0 auto;padding:0 24px}

/* ===================== 通用 ===================== */
.text-white{color:#fff !important}
.text-gradient{
  background:var(--gradient-text);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.section-light .text-gradient{
  background:var(--gradient-text-light);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}

.section{padding:104px 0;position:relative}
.section-light{background:var(--bg-light)}
.section-light + .section-light{background:#fff}
.section-dark{
  background:linear-gradient(180deg,#06101e 0%,#0a1628 100%);
  color:var(--text-on-dark);
}
.section-dark .section-sub{color:var(--text-on-dark-2)}

.section-head{text-align:center;margin-bottom:64px}
.section-title{
  font-size:38px;font-weight:800;line-height:1.3;
  letter-spacing:-0.02em;
}
.section-sub{
  margin-top:18px;font-size:16px;color:var(--text-2);
  max-width:820px;margin-left:auto;margin-right:auto;
}
.section-sub strong{color:var(--text)}
.section-dark .section-sub strong{color:#fff}

.sub-section-head{margin:96px 0 40px;text-align:center}
.sub-section-title{
  font-size:30px;font-weight:800;line-height:1.35;
  letter-spacing:-.01em;
}

/* ===================== 配图 ===================== */
.section-figure{
  margin-top:56px;border-radius:var(--radius-lg);overflow:hidden;
  background:#e8eef5;border:1px solid var(--border);
}
.section-dark .section-figure{
  background:rgba(255,255,255,0.03);border-color:var(--border-dark);
}
.section-figure img{width:100%;height:auto;display:block}
.section-figure figcaption{
  text-align:center;padding:16px 24px;
  color:var(--text-2);font-size:14px;background:#fff;
}
.section-dark .section-figure figcaption{
  background:rgba(255,255,255,0.04);color:var(--text-on-dark-2);
}
.section-figure-lg{margin-top:64px}

/* ===================== 按钮 ===================== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;
  padding:13px 28px;border-radius:10px;
  font-weight:600;font-size:15px;
  transition:all .2s ease;border:1px solid transparent;
}
.btn-lg{padding:16px 36px;font-size:16px}
.btn-primary{
  background:var(--gradient-cyan);color:#fff;
  box-shadow:0 8px 22px rgba(6,182,212,.3);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 32px rgba(6,182,212,.42)}
.btn-ghost{
  background:transparent;color:#fff;
  border-color:rgba(255,255,255,.25);
}
.section-light .btn-ghost{
  color:var(--text);border-color:var(--border);background:#fff;
}
.btn-ghost:hover{background:rgba(255,255,255,.08)}
.section-light .btn-ghost:hover{
  background:var(--bg-light);border-color:var(--primary);color:var(--primary);
}
.btn-link{
  color:#7dd3fc;font-size:14.5px;font-weight:600;
  padding:13px 8px;
}
.btn-link:hover{color:#fff}

/* ===================== 顶部导航 ===================== */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  background:rgba(6,16,30,0.6);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(255,255,255,.06);
  transition:all .3s ease;
}
.nav.is-scrolled{
  background:rgba(6,16,30,0.85);
  border-bottom-color:rgba(255,255,255,.1);
}
.nav-inner{
  display:flex;align-items:center;justify-content:space-between;
  height:72px;gap:32px;
}
.logo{display:flex;align-items:center;gap:12px;color:#fff;font-weight:700}
.logo-mark{
  width:38px;height:38px;border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--gradient-cyan);color:#fff;
  font-weight:900;font-size:18px;font-family:var(--code-font);
  box-shadow:0 6px 16px rgba(6,182,212,.4);
}
.logo-text{display:flex;flex-direction:column;line-height:1.2}
.logo-text small{
  font-size:11px;color:var(--text-on-dark-2);
  font-weight:500;letter-spacing:.04em;
  font-family:var(--code-font);
}
.nav-links{display:flex;gap:26px}
.nav-links a{
  color:var(--text-on-dark-2);font-size:14.5px;font-weight:500;
  transition:color .2s;
}
.nav-links a:hover{color:#fff}
.nav-cta{
  background:var(--gradient-cyan);color:#fff;
  padding:9px 20px;border-radius:8px;
  font-size:14px;font-weight:600;transition:all .2s;
}
.nav-cta:hover{transform:translateY(-1px);box-shadow:0 8px 20px rgba(6,182,212,.42)}

/* ===================== 1. Hero ===================== */
.hero{
  position:relative;padding:160px 0 96px;
  background:linear-gradient(180deg,#06101e 0%,#0a1628 50%,#0a1c33 100%);
  color:var(--text-on-dark);overflow:hidden;
}
.hero-bg{
  position:absolute;inset:0;
  background-image:
    radial-gradient(circle at 18% 25%,rgba(6,182,212,.22),transparent 40%),
    radial-gradient(circle at 78% 75%,rgba(59,130,246,.18),transparent 45%),
    linear-gradient(rgba(6,182,212,.06) 1px,transparent 1px),
    linear-gradient(90deg,rgba(6,182,212,.06) 1px,transparent 1px);
  background-size:auto,auto,60px 60px,60px 60px;
  pointer-events:none;
}
.hero-inner{
  position:relative;display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:64px;align-items:center;
}
.hero-eyebrow{
  display:inline-block;padding:8px 16px;border-radius:999px;
  background:rgba(6,182,212,.14);
  border:1px solid rgba(103,232,249,.32);
  color:#a5f3fc;font-size:13px;font-weight:600;
  letter-spacing:.04em;font-family:var(--code-font);
}
.hero-title{
  margin-top:24px;font-size:60px;line-height:1.15;font-weight:900;
  letter-spacing:-0.02em;color:#fff;
}
.hero-sub{
  margin-top:24px;font-size:17px;line-height:1.85;
  color:var(--text-on-dark-2);max-width:580px;
}
.hero-sub strong{color:#fff}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}
.hero-tags li{
  padding:7px 14px;border-radius:999px;
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.1);
  color:var(--text-on-dark);font-size:13px;font-weight:500;
  font-family:var(--code-font);
}
.hero-actions{margin-top:36px;display:flex;gap:12px;flex-wrap:wrap;align-items:center}
.hero-visual{
  position:relative;border-radius:24px;
  background:rgba(255,255,255,.03);
  border:1px solid rgba(255,255,255,.08);
  overflow:hidden;
  box-shadow:0 30px 80px rgba(0,0,0,.5);
}

/* ===================== 网格 ===================== */
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}

/* ===================== 2. 趋势挑战 ===================== */
.evolution{
  display:grid;grid-template-columns:repeat(4,1fr);gap:20px;
  margin-bottom:8px;
}
.evolution li{
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:28px 24px;
  position:relative;
  transition:all .25s;
}
.evolution li:hover{
  transform:translateY(-4px);
  border-color:rgba(6,182,212,.3);
  box-shadow:var(--shadow);
}
.evo-step{
  display:inline-block;
  font-size:14px;font-weight:700;color:var(--primary);
  letter-spacing:.1em;margin-bottom:14px;
  font-family:var(--code-font);
}
.evolution h3{
  font-size:17px;font-weight:700;color:var(--text);
  line-height:1.5;
}
.evolution li:not(:last-child)::after{
  content:"→";
  position:absolute;
  right:-15px;top:50%;
  transform:translateY(-50%);
  width:30px;height:30px;
  display:flex;align-items:center;justify-content:center;
  color:var(--primary);font-size:18px;font-weight:700;
  background:#fff;border-radius:50%;
  box-shadow:0 2px 8px rgba(6,182,212,.18);
  z-index:2;
}

/* 创意 vs 严谨 */
.vs-grid{
  display:grid;grid-template-columns:1fr auto 1fr;
  gap:24px;align-items:center;
  margin:0 auto 80px;
  max-width:1000px;
}
.vs-card{
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  padding:36px 32px;
  transition:all .3s;
}
.vs-card-creative{
  background:linear-gradient(135deg,#fff 0%,#f0fdfa 100%);
  border-color:rgba(20,184,166,.2);
}
.vs-card-rigorous{
  background:linear-gradient(135deg,#fff 0%,#eff6ff 100%);
  border-color:rgba(59,130,246,.2);
}
.vs-tag{
  display:inline-block;
  padding:5px 12px;border-radius:6px;
  font-size:12px;font-weight:700;letter-spacing:.06em;
  margin-bottom:14px;font-family:var(--code-font);
}
.vs-card-creative .vs-tag{background:rgba(20,184,166,.12);color:#0d9488}
.vs-card-rigorous .vs-tag{background:rgba(59,130,246,.12);color:#2563eb}
.vs-card h4{
  font-size:20px;font-weight:700;color:var(--text);
  margin-bottom:12px;
}
.vs-card p{color:var(--text-2);font-size:14.5px;line-height:1.85;margin-bottom:10px}
.vs-card .vs-strong{
  margin-top:14px;padding-top:14px;
  border-top:1px dashed var(--border);
  color:var(--text);font-weight:600;
}
.vs-divider span{
  display:flex;align-items:center;justify-content:center;
  width:48px;height:48px;border-radius:50%;
  background:var(--gradient-cyan);
  color:#fff;font-weight:900;font-size:14px;
  font-family:var(--code-font);
  box-shadow:0 8px 22px rgba(6,182,212,.3);
}

/* 冰山 */
.iceberg-block{
  display:grid;grid-template-columns:1fr 1.1fr;
  gap:64px;align-items:center;
}
.iceberg-text h3{
  font-size:26px;font-weight:800;line-height:1.4;
  margin-bottom:16px;
}
.iceberg-text p{
  color:var(--text-2);font-size:15.5px;line-height:1.9;
}
.iceberg-text strong{color:var(--text)}
.iceberg-figure{
  border-radius:var(--radius-lg);overflow:hidden;
  background:#e8eef5;border:1px solid var(--border);
}
.iceberg-figure img{width:100%;display:block}
.iceberg-figure figcaption{
  text-align:center;padding:14px 20px;background:#fff;
  color:var(--text-2);font-size:13.5px;
}

/* ===================== 3. 核心理念 ===================== */
.concept-grid{margin-top:8px}
.concept-card{
  background:rgba(255,255,255,.03);
  border:1px solid var(--border-dark);
  border-radius:var(--radius-lg);
  padding:48px 36px;
  transition:all .3s;
  text-align:center;
}
.concept-card:hover{
  transform:translateY(-6px);
  border-color:rgba(103,232,249,.3);
  background:rgba(6,182,212,.05);
}
.concept-card-mid{
  background:linear-gradient(135deg,rgba(6,182,212,.1),rgba(59,130,246,.08));
  border-color:rgba(103,232,249,.3);
}
.concept-num{
  display:inline-block;
  font-size:36px;font-weight:900;font-family:var(--code-font);
  background:var(--gradient-text);
  -webkit-background-clip:text;background-clip:text;color:transparent;
  letter-spacing:-.02em;margin-bottom:14px;
}
.concept-card h3{
  font-size:26px;font-weight:800;color:#fff;
  margin-bottom:14px;
}
.concept-card p{
  color:var(--text-on-dark-2);
  font-size:15px;line-height:1.85;
}

/* ===================== 4. 三大方案 ===================== */
.method{margin-bottom:104px}
.method:last-child{margin-bottom:0}
.method-row{
  display:grid;grid-template-columns:minmax(0,1.08fr) minmax(0,.92fr);
  gap:72px;align-items:center;
}
.method-row-reverse .method-figure{order:2}
.method-row-reverse .method-text{order:1}
.method-figure{
  border-radius:var(--radius-lg);overflow:hidden;
  background:#e8eef5;border:1px solid var(--border);
  box-shadow:0 16px 40px rgba(15,23,42,.08);
}
.method-figure img{width:100%;display:block}
.method-figure-body{
  padding:22px 22px 24px;
  background:linear-gradient(180deg,#f8fbff 0%,#eef6fb 100%);
}
.method-figure-caption{
  color:var(--text);font-size:14px;line-height:1.8;
  margin-bottom:16px;font-weight:600;
}
.method-figure-grid{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
  gap:12px;
}
.method-figure-card{
  padding:16px 16px 14px;
  background:rgba(255,255,255,.88);
  border:1px solid rgba(6,182,212,.14);
  border-radius:14px;
  box-shadow:0 8px 24px rgba(15,23,42,.05);
}
.method-figure-k{
  display:inline-block;
  margin-bottom:8px;
  padding:4px 9px;
  border-radius:999px;
  background:rgba(6,182,212,.1);
  color:var(--primary);
  font-size:11.5px;
  font-weight:700;
  letter-spacing:.08em;
  font-family:var(--code-font);
}
.method-figure-card strong{
  display:block;
  margin-bottom:6px;
  color:var(--text);
  font-size:16px;
  font-weight:800;
}
.method-figure-card p{
  margin:0;
  color:var(--text-2);
  font-size:13.5px;
  line-height:1.7;
}
.method-tag{
  display:inline-block;
  padding:6px 14px;border-radius:999px;
  background:rgba(6,182,212,.1);
  border:1px solid rgba(6,182,212,.22);
  color:var(--primary);font-size:13px;font-weight:700;
  letter-spacing:.04em;margin-bottom:18px;font-family:var(--code-font);
}
.method-text h3{
  font-size:32px;font-weight:800;line-height:1.25;
  margin-bottom:16px;letter-spacing:-.01em;
}
.method-text p{
  color:var(--text-2);font-size:15.5px;line-height:1.9;
  margin-bottom:14px;
}

.sub-h{
  font-size:12.5px;font-weight:700;
  color:var(--primary);letter-spacing:.1em;
  margin-top:24px;margin-bottom:12px;
  text-transform:uppercase;font-family:var(--code-font);
}

.step-flow{
  display:grid;grid-template-columns:repeat(2,1fr);
  gap:10px;margin-bottom:16px;
}
.step-flow li{
  display:flex;align-items:center;gap:12px;
  padding:10px 14px;
  background:#fff;
  border:1px solid var(--border);
  border-radius:10px;
  font-size:14px;font-weight:600;color:var(--text);
}
.step-no{
  display:inline-flex;
  width:28px;height:28px;border-radius:50%;
  background:var(--gradient-cyan);color:#fff;
  align-items:center;justify-content:center;
  font-weight:800;font-size:13px;font-family:var(--code-font);
  flex-shrink:0;
}

.chip-list{
  display:flex;flex-wrap:wrap;gap:8px;
}
.chip-list li{
  padding:6px 14px;border-radius:999px;
  background:rgba(6,182,212,.08);
  border:1px solid rgba(6,182,212,.18);
  color:var(--primary);font-size:13.5px;font-weight:600;
}

.key-list{display:flex;flex-direction:column;gap:12px;margin-bottom:8px}
.key-list li{
  display:grid;grid-template-columns:auto 1fr;gap:14px;
  padding:14px 18px;
  background:#fff;
  border:1px solid var(--border);
  border-radius:10px;
  align-items:start;
}
.key-list li strong{
  color:var(--text);font-weight:700;font-size:14.5px;
  padding:3px 10px;border-radius:6px;
  background:rgba(6,182,212,.1);
  white-space:nowrap;
}
.key-list li span{
  color:var(--text-2);font-size:14px;line-height:1.7;
  align-self:center;
}

.lead-text{
  margin-top:8px;font-size:15px !important;
  color:var(--text) !important;
}
.lead-text strong{color:var(--primary)}

.method-summary{
  display:flex;flex-direction:column;gap:8px;
}
.ms-pill{
  padding:12px 18px;border-radius:10px;
  background:#fff;
  border:1px solid var(--border);
  font-size:14px;color:var(--text-2);
  display:flex;align-items:center;gap:10px;
}
.ms-pill b{
  font-weight:700;color:var(--text);
  padding:3px 10px;border-radius:6px;
  background:var(--bg-light);
  white-space:nowrap;
  font-family:var(--code-font);font-size:13px;
}
.ms-pill-primary{
  background:linear-gradient(135deg,rgba(6,182,212,.1),rgba(59,130,246,.06));
  border-color:rgba(6,182,212,.25);
}
.ms-pill-primary b{
  background:var(--gradient-cyan);color:#fff;
}

/* ===================== 5. 产品实践 ===================== */
.practice-overview-block{margin-bottom:40px}
.practice-overview-head{
  max-width:1260px;
  margin:0 auto 38px;
  text-align:center;
}
.practice-overview-head h3{
  font-size:58px;font-weight:900;line-height:1.22;
  color:#fff;letter-spacing:-.03em;
  margin-bottom:24px;
}
.practice-overview-head p{
  max-width:1120px;margin:0 auto;
  color:var(--text-on-dark-2);
  font-size:17px;line-height:1.8;
}
.practice-overview-cards{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:16px;margin-bottom:18px;
}
.practice-overview-card{
  padding:20px 22px;
  border-radius:20px;
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.08);
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.03);
}
.practice-overview-no{
  display:block;
  color:#69c3ff;
  font-size:16px;font-weight:800;
  font-family:var(--code-font);
  margin-bottom:14px;
}
.practice-overview-card h4{
  color:#fff;font-size:20px;font-weight:800;
  line-height:1.35;margin-bottom:10px;
}
.practice-overview-card p{
  color:var(--text-on-dark-2);
  font-size:14px;line-height:1.7;
  margin:0;
}
.practice-overview-lower{
  border-radius:24px;
  overflow:hidden;
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.08);
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.03);
}
.practice-overview-lower img{
  width:100%;
  display:block;
  height:auto;
  min-height:0;
  object-fit:contain;
  object-position:center center;
}

.practice-tabs{
  margin-top:8px;
}
.practice-tablist{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:12px;margin-bottom:24px;
}
.practice-tab{
  padding:16px 18px;
  border-radius:16px;
  border:1px solid var(--border-dark);
  background:rgba(255,255,255,.03);
  color:var(--text-on-dark-2);
  font-size:14px;font-weight:700;line-height:1.55;
  text-align:left;cursor:pointer;
  transition:all .25s ease;
}
.practice-tab:hover{
  transform:translateY(-2px);
  border-color:rgba(103,232,249,.24);
  background:rgba(6,182,212,.08);
}
.practice-tab.is-active{
  color:#fff;
  background:linear-gradient(135deg,rgba(6,182,212,.18),rgba(59,130,246,.14));
  border-color:rgba(103,232,249,.34);
  box-shadow:0 12px 24px rgba(2,12,27,.18);
}
.practice-panels{
  position:relative;
}
.practice-panel{
  display:grid;grid-template-columns:minmax(0,.8fr) minmax(0,1.2fr);
  gap:42px;align-items:stretch;
  padding:30px;
  border-radius:28px;
  background:rgba(255,255,255,.03);
  border:1px solid var(--border-dark);
}
.practice-panel[hidden]{display:none}
.practice-panel-copy h3{
  font-size:28px;font-weight:800;color:#fff;line-height:1.35;
  margin-bottom:14px;
}
.practice-panel-copy p{
  color:var(--text-on-dark-2);font-size:15px;line-height:1.9;
  margin-bottom:14px;
}
.practice-tag{
  display:inline-block;
  padding:5px 12px;border-radius:8px;
  background:rgba(6,182,212,.18);
  border:1px solid rgba(103,232,249,.3);
  color:#a5f3fc;font-size:13px;font-weight:700;
  letter-spacing:.04em;margin-bottom:16px;font-family:var(--code-font);
}
.cap-list{
  display:flex;flex-direction:column;gap:10px;margin-top:16px;
}
.cap-list-2col{display:grid;grid-template-columns:1fr 1fr;gap:10px 16px}
.cap-list li{
  position:relative;padding:8px 12px 8px 28px;
  font-size:14px;color:var(--text-on-dark);
  background:rgba(255,255,255,.03);
  border:1px solid var(--border-dark);
  border-radius:8px;
}
.cap-list li::before{
  content:"";position:absolute;left:12px;top:50%;
  width:6px;height:6px;margin-top:-3px;border-radius:50%;
  background:var(--gradient-cyan);
}
.section-light .cap-list li{
  background:#fff;color:var(--text-2);border-color:var(--border);
}

.practice-panel-visual{
  min-height:100%;
}
.practice-panel-copy{
  display:flex;
  flex-direction:column;
  justify-content:center;
}
.practice-figure{
  border-radius:var(--radius-lg);overflow:hidden;
  background:rgba(255,255,255,.04);
  border:1px solid var(--border-dark);
  box-shadow:0 18px 40px rgba(2,12,27,.24);
}
.practice-figure img{
  width:100%;display:block;
  max-height:620px;object-fit:contain;object-position:center center;
}
.practice-carousel{
  position:relative;
  min-height:100%;
  height:100%;
  border-radius:24px;
  overflow:hidden;
  border:1px solid var(--border-dark);
  background:rgba(255,255,255,.04);
  box-shadow:0 18px 40px rgba(2,12,27,.24);
}
.practice-carousel-panel{
  min-height:520px;
}
.practice-carousel-panel-flat{
  min-height:360px;
  border-radius:22px;
}
.practice-carousel-slide{
  position:absolute;inset:0;
  opacity:0;
  transition:opacity .45s ease;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:12px;
  padding:18px 18px 56px;
  background:
    linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.02)),
    radial-gradient(circle at top right,rgba(34,211,238,.08),transparent 30%);
}
.practice-carousel-slide.is-active{
  opacity:1;
  z-index:1;
}
.practice-carousel-slide img{
  width:100%;
  height:calc(100% - 44px);
  display:block;
  object-fit:contain;
  object-position:center center;
}
.practice-demo-caption{
  display:block;
  width:max-content;
  max-width:100%;
  margin:0 auto;
  padding:6px 14px;
  border-radius:999px;
  background:rgba(255,248,232,.86);
  border:1px solid rgba(214,167,58,.65);
  color:#8f6300;
  font-size:12px;
  font-weight:700;
  line-height:1.2;
  text-align:center;
  box-shadow:none;
}
.practice-carousel-dots{
  position:absolute;
  left:22px;right:22px;bottom:18px;
  display:flex;justify-content:center;gap:10px;
  z-index:2;
}
.practice-carousel-dot{
  width:10px;height:10px;border-radius:50%;
  border:0;cursor:pointer;
  background:rgba(255,255,255,.35);
  box-shadow:0 0 0 1px rgba(255,255,255,.22);
}
.practice-carousel-dot.is-active{
  background:#fff;
  transform:scale(1.15);
}
.practice-panel-copy-mapped{
  gap:18px;
}
.practice-mapped-item{
  padding:20px 22px;
  border-radius:18px;
  background:rgba(255,255,255,.04);
  border:1px solid rgba(103,232,249,.16);
}
.practice-mapped-item h4{
  color:#fff;
  font-size:17px;
  line-height:1.75;
  margin-bottom:10px;
}
.practice-mapped-item p{
  margin:0;
  color:#99f6ff;
  font-size:13px;
  font-weight:700;
  letter-spacing:.04em;
  font-family:var(--code-font);
}
.practice-panel-lead{
  margin:0;
  font-size:21px !important;
  font-weight:800;
  line-height:1.7 !important;
  color:#fff !important;
}
.practice-panel-visual-stack{
  display:grid;
  grid-template-rows:repeat(2,minmax(0,1fr));
  gap:18px;
}
.practice-panel-stack{
  display:flex;
  flex-direction:column;
  gap:20px;
  width:100%;
}
.practice-panel-stack h3{
  font-size:28px;
  font-weight:800;
  color:#fff;
  line-height:1.35;
  margin:0;
}
.practice-mapped-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:20px;
}
.practice-mapped-card{
  display:flex;
  flex-direction:column;
  gap:14px;
}
.practice-mapped-card p{
  margin:0;
  color:var(--text-on-dark-2);
  font-size:15px;
  line-height:1.9;
}
.practice-figure-mapped{
  position:relative;
  min-height:320px;
  padding:14px;
  display:flex;
  flex-direction:column;
  gap:12px;
}
.practice-figure-mapped img{
  height:100%;
  max-height:none;
}
.practice-report-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:18px;
  height:100%;
}
.practice-report-card{
  display:flex;
  flex-direction:column;
  gap:10px;
  padding:18px;
  border-radius:20px;
  background:rgba(255,255,255,.04);
  border:1px solid rgba(103,232,249,.16);
  box-shadow:0 12px 28px rgba(2,12,27,.18);
}
.practice-report-card h4{
  color:#fff;
  font-size:16px;
  font-weight:800;
  margin:0;
}
.practice-report-figure{
  position:relative;
  flex:1;
  min-height:180px;
  border-radius:16px;
  overflow:hidden;
  background:rgba(255,255,255,.03);
  border:1px solid rgba(255,255,255,.08);
  display:flex;
  flex-direction:column;
  gap:12px;
  padding:14px;
}
.practice-report-figure img{
  width:100%;
  height:100%;
  display:block;
  object-fit:contain;
  object-position:center center;
}
.practice-logo-block{
  display:flex;
  flex-direction:column;
  gap:18px;
}
.practice-logo-block h4{
  color:#fff;
  font-size:18px;
  font-weight:800;
  margin:0;
}
.practice-logo-list{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:14px;
  flex:1;
  align-content:stretch;
}
.practice-logo-item{
  min-height:96px;
  padding:12px;
  border-radius:22px;
  background:#fff;
  border:1px solid rgba(226,232,240,.9);
  display:flex;
  align-items:center;
  justify-content:center;
  overflow:hidden;
}
.practice-logo-item img{
  display:block;
  width:100%;
  height:100%;
  object-fit:contain;
  object-position:center center;
}
.practice-thumb-grid{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
  gap:16px;
}
.practice-thumb-grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.practice-thumb-grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
.practice-thumb-grid-ecosystem{grid-template-columns:repeat(3,minmax(0,1fr))}
.practice-thumb{
  border-radius:18px;overflow:hidden;
  background:rgba(255,255,255,.04);
  border:1px solid var(--border-dark);
  box-shadow:0 12px 28px rgba(2,12,27,.18);
}
.practice-thumb img{
  width:100%;height:100%;
  max-height:220px;display:block;
  object-fit:contain;object-position:center center;
}
.practice-thumb-logo{
  display:flex;align-items:center;justify-content:center;
  padding:20px;background:#fff;
}
.practice-thumb-logo img{
  object-fit:contain;
  max-height:90px;
}
.practice-ecosystem-board{
  display:flex;flex-direction:column;gap:18px;
}
.practice-ecosystem-group{
  padding:20px 20px 22px;
  border-radius:20px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--border-dark);
  box-shadow:0 12px 28px rgba(2,12,27,.18);
}
.practice-ecosystem-group h4{
  color:#fff;font-size:18px;font-weight:800;
  margin-bottom:16px;
}
.practice-ecosystem-cards{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  gap:14px;
}
.practice-ecosystem-card{
  padding:18px 16px;
  border-radius:16px;
  background:rgba(255,255,255,.04);
  border:1px solid rgba(103,232,249,.16);
}
.practice-ecosystem-k,
.practice-mode-no{
  display:inline-flex;align-items:center;justify-content:center;
  width:30px;height:30px;border-radius:50%;
  margin-bottom:12px;
  background:var(--gradient-cyan);color:#fff;
  font-size:12px;font-weight:800;font-family:var(--code-font);
}
.practice-ecosystem-card h5,
.practice-mode-card h5{
  color:#fff;font-size:16px;font-weight:700;
  margin-bottom:8px;
}
.practice-ecosystem-card p{
  color:var(--text-on-dark-2);font-size:13.5px;line-height:1.75;
  margin:0;
}
.practice-ecosystem-split{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
  gap:14px;
}
.practice-mode-card{
  padding:18px 16px;
  border-radius:16px;
  background:linear-gradient(135deg,rgba(255,255,255,.04),rgba(6,182,212,.06));
  border:1px solid rgba(103,232,249,.16);
}
.practice-mode-card ul{
  margin:0;padding-left:18px;
  color:var(--text-on-dark-2);
}
.practice-mode-card li{
  margin:0 0 8px;
  line-height:1.7;
}
#practice-panel-lowcode{
  grid-template-columns:minmax(0,.72fr) minmax(0,1.28fr);
  align-items:center;
}
#practice-panel-lowcode .practice-panel-copy p{
  margin-bottom:0;
}
#practice-panel-lowcode .practice-carousel-slide{
  padding:10px;
}
#practice-panel-spec{
  grid-template-columns:minmax(0,.88fr) minmax(0,1.12fr);
}
#practice-panel-spec{
  grid-template-columns:1fr;
}
#practice-panel-spec .practice-panel-copy,
#practice-panel-ecosystem .practice-panel-copy{
  justify-content:flex-start;
}
#practice-panel-ecosystem .practice-logo-block{
  height:100%;
}
#practice-panel-engineering{
  grid-template-columns:minmax(0,.64fr) minmax(0,1.36fr);
}
#practice-panel-ecosystem{
  grid-template-columns:minmax(0,.78fr) minmax(0,1.22fr);
}

/* ===================== 6. 治理能力卡片 ===================== */
.cap-grid{margin-top:8px;gap:24px}
.cap-card{
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  padding:32px 28px;
  transition:all .3s;
}
.cap-card:hover{
  transform:translateY(-6px);
  border-color:rgba(6,182,212,.25);
  box-shadow:var(--shadow-lg);
}
.cap-ic{
  width:54px;height:54px;border-radius:14px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--gradient-cyan);color:#fff;
  margin-bottom:20px;
  box-shadow:0 8px 22px rgba(6,182,212,.28);
}
.cap-ic svg{width:28px;height:28px}
.cap-card h3{
  font-size:19px;font-weight:700;color:var(--text);
  margin-bottom:10px;
}
.cap-card p{
  color:var(--text-2);font-size:14.5px;line-height:1.8;
}

/* ===================== 7. 模型与工具生态 ===================== */
.block-title{
  font-size:22px;font-weight:700;color:#fff;
  margin:48px 0 24px;text-align:center;
}
.block-title:first-of-type{margin-top:0}
.block-desc{
  color:var(--text-on-dark-2);font-size:15px;line-height:1.85;
  text-align:center;max-width:760px;margin:0 auto 32px;
}

.tool-grid{margin-bottom:8px;gap:24px}
.tool-card{
  background:rgba(255,255,255,.03);
  border:1px solid var(--border-dark);
  border-radius:var(--radius);
  padding:28px 26px;
  transition:all .25s;
}
.tool-card:hover{
  border-color:rgba(103,232,249,.3);
  background:rgba(6,182,212,.06);
  transform:translateY(-3px);
}
.tool-step{
  display:inline-block;font-size:13px;font-weight:700;
  color:#7dd3fc;letter-spacing:.1em;margin-bottom:12px;
  font-family:var(--code-font);
}
.tool-card h4{font-size:18px;font-weight:700;color:#fff;margin-bottom:10px}
.tool-card p{color:var(--text-on-dark-2);font-size:14px;line-height:1.8}

.mode-grid{gap:24px}
.mode-card{
  background:rgba(255,255,255,.03);
  border:1px solid var(--border-dark);
  border-radius:var(--radius-lg);
  padding:32px 28px;
  transition:all .3s;
}
.mode-card:hover{transform:translateY(-3px)}
.mode-card-strong{
  background:linear-gradient(135deg,rgba(6,182,212,.1),rgba(59,130,246,.06));
  border-color:rgba(103,232,249,.3);
}
.mode-tag{
  display:inline-block;
  padding:6px 14px;border-radius:8px;
  background:rgba(255,255,255,.06);
  color:#fff;font-size:14px;font-weight:700;
  margin-bottom:18px;font-family:var(--code-font);
}
.mode-tag-strong{
  background:var(--gradient-cyan);
  box-shadow:0 4px 12px rgba(6,182,212,.3);
}

/* ===================== 8. 数字基座 ===================== */
.synergy-list{
  display:grid;grid-template-columns:repeat(2,1fr);
  gap:16px;
  max-width:900px;margin:0 auto;
}
.synergy-list li{
  position:relative;padding:18px 22px 18px 56px;
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--radius);
  font-size:15px;font-weight:600;color:var(--text);
  transition:all .25s;
}
.synergy-list li:hover{
  border-color:rgba(6,182,212,.3);
  box-shadow:var(--shadow-sm);
  transform:translateX(4px);
}
.synergy-list li::before{
  content:"";
  position:absolute;left:18px;top:50%;
  width:24px;height:24px;margin-top:-12px;
  border-radius:8px;
  background:var(--gradient-cyan);
  box-shadow:0 4px 12px rgba(6,182,212,.3);
}
.synergy-list li::after{
  content:"";
  position:absolute;left:24px;top:50%;
  width:12px;height:6px;margin-top:-1px;
  border-left:2px solid #fff;
  border-bottom:2px solid #fff;
  transform:rotate(-45deg);
  margin-top:-3px;
}

/* ===================== 9. CTA ===================== */
.cta{
  position:relative;padding:120px 0;text-align:center;
  background:linear-gradient(135deg,#06101e 0%,#0a1c33 50%,#0c2742 100%);
  color:#fff;overflow:hidden;
}
.cta-bg{position:absolute;inset:0;z-index:0;opacity:.45}
.cta-bg img{width:100%;height:100%;object-fit:cover}
.cta-inner{position:relative;z-index:1}
.cta-title{
  font-size:42px;font-weight:900;line-height:1.3;
  letter-spacing:-0.02em;margin-bottom:20px;color:#fff;
}
.cta-sub{
  font-size:17px;color:var(--text-on-dark-2);
  max-width:660px;margin:0 auto 40px;line-height:1.85;
}
.cta-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}

/* ===================== 页脚 ===================== */
.footer{
  background:#040a14;padding:36px 0;
  border-top:1px solid rgba(255,255,255,.06);
}
.footer-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:24px;flex-wrap:wrap;
}
.footer-brand{display:flex;align-items:center;gap:14px;color:#fff}
.footer-name{font-weight:700;font-size:16px}
.footer-en{font-size:12px;color:var(--text-on-dark-3);margin-top:2px;font-family:var(--code-font)}
.footer-copy{color:var(--text-on-dark-3);font-size:13px}

/* ===================== 响应式 ===================== */
@media (max-width:1024px){
  .hero-inner{grid-template-columns:1fr;gap:48px}
  .hero-title{font-size:48px}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3{grid-template-columns:repeat(2,1fr)}
  .evolution{grid-template-columns:repeat(2,1fr)}
  .evolution li:nth-child(2)::after,
  .evolution li:nth-child(4)::after{display:none}
  .vs-grid{grid-template-columns:1fr;max-width:560px}
  .vs-divider{justify-self:center}
  .iceberg-block,.method-row,.practice-block,.practice-panel{grid-template-columns:1fr;gap:36px}
  .method-row-reverse .method-figure,
  .practice-block-reverse .practice-figure{order:1}
  .method-row-reverse .method-text,
  .practice-block-reverse .practice-text{order:2}
  .practice-overview-head h3{font-size:46px}
  .practice-overview-cards{grid-template-columns:repeat(2,minmax(0,1fr))}
  .practice-overview-lower img{min-height:0}
  .practice-carousel-panel{min-height:420px}
  .practice-carousel-panel-flat{min-height:300px}
  .practice-mapped-grid{grid-template-columns:1fr}
  .practice-panel-visual-stack,
  .practice-report-grid,
  .practice-logo-list,
  .practice-ecosystem-cards,
  .practice-ecosystem-split{grid-template-columns:1fr}
  .practice-tablist{grid-template-columns:repeat(2,minmax(0,1fr))}
  .synergy-list{grid-template-columns:1fr}
  .nav-links{display:none}
}
@media (max-width:640px){
  .section{padding:64px 0}
  .section-title{font-size:28px}
  .hero{padding:120px 0 64px}
  .hero-title{font-size:36px}
  .grid-4,.grid-3,.grid-2{grid-template-columns:1fr}
  .evolution{grid-template-columns:1fr}
  .evolution li::after{display:none !important}
  .step-flow,.cap-list-2col{grid-template-columns:1fr}
  .method-figure-grid{grid-template-columns:1fr}
  .cta-title{font-size:30px}
  .method-text h3,.iceberg-text h3{font-size:22px}
  .practice-panel-copy h3{font-size:22px}
  .practice-overview-head h3{font-size:34px}
  .practice-overview-head p{font-size:15px}
  .practice-overview-cards{grid-template-columns:1fr}
  .practice-overview-card{padding:18px}
  .practice-overview-lower img{min-height:0}
  .practice-panel{padding:22px}
  .practice-carousel-panel{min-height:320px}
  .practice-carousel-panel-flat{min-height:240px}
  .practice-panel-lead{font-size:18px !important}
  .practice-panel-stack h3{font-size:22px}
  .practice-figure-mapped{min-height:240px}
  .practice-tablist{grid-template-columns:1fr}
}