/* ===== 思尚云官网 v2 - 共享样式 (重构版) ===== */
:root{
  --ink:#1e2838;--ink2:#243150;--ink3:#2d3a55;--ink4:#3a4868;
  --txt:#d0d8e6;--txt2:#8a96aa;--txt3:#5c6678;
  --blue:#3b82f6;--blue2:#60a5fa;--cyan:#06b6d4;--cyan2:#22d3ee;
  --gold:#f59e0b;--gold2:#fbbf24;
  --green:#10b981;--red:#ef4444;--purple:#8b5cf6;
  --border:rgba(138,150,170,.1);--border2:rgba(138,150,170,.18);
  --glass:rgba(45,58,85,.45);
  --glow:0 0 40px rgba(59,130,246,.1);
  --shadow-sm:0 2px 8px rgba(0,0,0,.1);
  --shadow:0 4px 24px rgba(0,0,0,.12);
  --shadow-lg:0 20px 60px rgba(0,0,0,.2);
  --shadow-hover:0 24px 70px rgba(0,0,0,.25),0 0 0 1px rgba(6,182,212,.18);
  --radius:20px;--radius2:14px;--radius3:10px;
  --maxw:1180px;
  --font:'-apple-system','BlinkMacSystemFont','Segoe UI','PingFang SC','Microsoft YaHei',sans-serif;
  --mono:'SF Mono','Fira Code','Consolas',monospace;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{background:var(--ink);color:var(--txt);font-family:var(--font);line-height:1.75;overflow-x:hidden;font-size:15px;letter-spacing:.2px}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}

/* ===== Navigation ===== */
.nav{position:fixed;top:0;left:0;right:0;z-index:1000;background:rgba(30,40,56,.85);backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px);border-bottom:1px solid var(--border);transition:all .3s}
.nav-inner{max-width:var(--maxw);margin:0 auto;padding:0 28px;height:68px;display:flex;align-items:center;justify-content:space-between}
.nav-logo{display:flex;align-items:center;gap:10px;font-weight:800;font-size:19px;color:var(--txt);letter-spacing:-.3px}
.nav-logo span{color:var(--cyan);text-shadow:0 0 20px rgba(6,182,212,.4)}
.nav-links{display:none;align-items:center;gap:32px}
@media(min-width:992px){.nav-links{display:flex}}
.nav-links a{color:var(--txt2);font-size:14px;font-weight:500;transition:color .2s;position:relative}
.nav-links a:hover,.nav-links a.active{color:var(--cyan)}
.nav-links a.active::after{content:'';position:absolute;bottom:-24px;left:0;right:0;height:2px;background:linear-gradient(90deg,var(--blue),var(--cyan));border-radius:1px}
.nav-cta{padding:9px 22px;background:linear-gradient(135deg,var(--blue),var(--cyan));border-radius:10px;color:#fff;font-size:14px;font-weight:600;transition:all .25s;box-shadow:0 4px 16px rgba(6,182,212,.25)}
.nav-cta:hover{transform:translateY(-1px);box-shadow:0 8px 28px rgba(6,182,212,.4)}
.nav-mobile{display:block;font-size:24px;color:var(--txt);cursor:pointer;background:none;border:none}
@media(min-width:992px){.nav-mobile{display:none}}

/* ===== Layout ===== */
.container{max-width:var(--maxw);margin:0 auto;padding:0 28px}
.section{padding:56px 0;position:relative}
@media(min-width:768px){.section{padding:88px 0}}
.section-sm{padding:56px 0}
.section-header{text-align:center;margin-bottom:56px}
.section-tag{display:inline-block;padding:5px 16px;background:rgba(6,182,212,.08);border:1px solid rgba(6,182,212,.2);border-radius:100px;color:var(--cyan);font-size:11px;font-weight:700;letter-spacing:1.5px;text-transform:uppercase;margin-bottom:20px}
.section-title{font-size:28px;font-weight:800;letter-spacing:-1px;margin-bottom:14px;color:var(--txt)}
@media(min-width:768px){.section-title{font-size:38px}}
.section-subtitle{color:var(--txt2);font-size:16px;max-width:580px;margin:0 auto;line-height:1.6}

/* ===== Hero（居中布局） ===== */
.hero{min-height:100vh;display:flex;flex-direction:column;justify-content:center;align-items:stretch;position:relative;overflow:hidden;padding-top:68px;padding-bottom:60px}
#bg{position:fixed;top:0;left:0;width:100%;height:100%;z-index:0;opacity:.3}
.hero-glow{position:absolute;width:700px;height:700px;border-radius:50%;background:radial-gradient(circle,rgba(59,130,246,.1),transparent 65%);top:10%;left:50%;transform:translateX(-50%);pointer-events:none}
.hero-glow2{position:absolute;width:500px;height:500px;border-radius:50%;background:radial-gradient(circle,rgba(139,92,246,.08),transparent 65%);bottom:10%;right:10%;pointer-events:none}
.hero-content{position:relative;z-index:2;max-width:var(--maxw);margin:0 auto;padding:0 28px;display:flex;justify-content:space-between;align-items:center;width:100%;gap:48px}
.hero-left{text-align:left;max-width:560px}
@media(min-width:992px){.hero-left{max-width:580px}.hero-sub{margin-left:0;margin-right:0;font-size:18px}.hero-btns{justify-content:flex-start}.hero h1{font-size:62px}}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(6,182,212,.08);border:1px solid rgba(6,182,212,.25);color:var(--cyan2);padding:8px 18px;border-radius:100px;font-size:14px;font-weight:600;margin-bottom:28px}
.hero-badge .dot{width:8px;height:8px;border-radius:50%;background:var(--cyan);box-shadow:0 0 8px var(--cyan)}
.hero h1{font-size:44px;font-weight:900;letter-spacing:-1.5px;line-height:1.15;margin-bottom:24px;color:var(--txt)}
.hero h1 .grad{background:linear-gradient(110deg,#2f7bff 0%,#35c5f0 45%,#ffb03a 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-sub{font-size:17px;color:var(--txt2);margin-bottom:36px;line-height:1.75;max-width:560px}
.hero-sub b{color:var(--cyan);font-weight:600}
.hero-btns{display:flex;gap:14px;flex-wrap:wrap;justify-content:flex-start}
/* 首屏数据带 */
.hero-metrics{display:flex;gap:34px;margin-top:44px;flex-wrap:wrap}
.hm-item b{display:block;font-size:30px;font-weight:900;background:linear-gradient(135deg,var(--cyan2),var(--blue2));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;letter-spacing:-.5px}
.hm-item span{display:block;font-size:14px;color:var(--txt2);margin-top:4px}
/* 右侧 AI 演示窗 */
.hero-demo{flex-shrink:0;width:520px}
.demo-window{background:var(--glass);backdrop-filter:blur(14px);border:1px solid var(--border);border-radius:16px;overflow:hidden;box-shadow:0 24px 60px rgba(0,0,0,.4),0 0 0 1px rgba(6,182,212,.08)}
.demo-bar{display:flex;align-items:center;gap:10px;padding:14px 18px;border-bottom:1px solid var(--border);background:rgba(255,255,255,.03)}
.demo-dots{display:flex;gap:6px}
.demo-dots i{width:11px;height:11px;border-radius:50%;display:block}
.demo-dots i:nth-child(1){background:#ff5f57}
.demo-dots i:nth-child(2){background:#febc2e}
.demo-dots i:nth-child(3){background:#28c840}
.demo-title{font-size:14px;color:var(--txt2);font-weight:500}
/* 演示窗场景切换 */
.demo-tabs{display:flex;gap:6px;padding:10px 14px;border-bottom:1px solid var(--border);flex-wrap:wrap;background:rgba(255,255,255,.02)}
.demo-tab{font-size:12px;padding:6px 13px;border-radius:8px;background:transparent;border:1px solid var(--border);color:var(--txt2);cursor:pointer;transition:all .2s;font-weight:600}
.demo-tab:hover{border-color:rgba(6,182,212,.5);color:var(--txt)}
.demo-tab.active{background:linear-gradient(135deg,rgba(6,182,212,.16),rgba(59,130,246,.12));border-color:var(--cyan);color:#fff}
.demo-scene{display:none;flex-direction:column;gap:14px}
.demo-scene.active{display:flex;animation:fadein .3s ease}
@keyframes fadein{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
.demo-msg b{color:var(--cyan);font-weight:700}
.demo-body{padding:24px 20px;display:flex;flex-direction:column;gap:14px}
.demo-msg{font-size:15px;line-height:1.65;padding:13px 16px;border-radius:12px;max-width:88%}
.demo-msg.user{align-self:flex-end;background:rgba(6,182,212,.14);border:1px solid rgba(6,182,212,.25);color:var(--txt)}
.demo-msg.ai{align-self:flex-start;background:rgba(255,255,255,.05);border:1px solid var(--border2);color:var(--txt2)}
.demo-thinking{display:inline-block;font-size:13px;color:var(--cyan);margin-bottom:6px}
.demo-tags{display:flex;gap:8px;flex-wrap:wrap}
.demo-tags span{font-size:13px;color:var(--green);background:rgba(52,211,153,.1);border:1px solid rgba(52,211,153,.25);padding:4px 12px;border-radius:100px}
.demo-bar-line{height:6px;border-radius:3px;background:rgba(255,255,255,.06);overflow:hidden;margin-top:4px}
.demo-bar-fill{height:100%;width:86%;border-radius:3px;background:linear-gradient(90deg,var(--cyan),var(--blue));animation:demoFill 2.5s ease-in-out infinite}
@keyframes demoFill{0%{width:20%}60%{width:86%}100%{width:86%}}
/* 首屏底部延伸行 */
.hero-clients{margin-top:48px;padding-top:28px;border-top:1px solid var(--border);display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:18px;position:relative;z-index:2;max-width:var(--maxw);margin-left:auto;margin-right:auto;padding-left:28px;padding-right:28px}
.hero-clients-tag{font-size:13.5px;color:var(--txt2)}
.hero-clients-tag b{color:var(--cyan);font-weight:800;font-size:18px;letter-spacing:-.3px}
.hero-clients-tags{display:flex;flex-wrap:wrap;gap:8px}
.hero-clients-tags span{font-size:12.5px;color:var(--txt2);background:rgba(255,255,255,.04);border:1px solid var(--border);padding:6px 14px;border-radius:100px;transition:all .2s}
.hero-clients-tags span:hover{border-color:rgba(6,182,212,.4);color:var(--txt);transform:translateY(-1px)}
.hero-cta-link{font-size:14px;color:var(--cyan);text-decoration:none;display:inline-flex;align-items:center;gap:6px;font-weight:600;transition:all .2s}
.hero-cta-link:hover{color:var(--txt);gap:10px}
@media(max-width:991px){.hero-content{flex-direction:column;justify-content:center}.hero-left{text-align:center;max-width:100%}.hero-sub{margin-left:auto;margin-right:auto}.hero-btns{justify-content:center}.hero-metrics{justify-content:center}.hero-demo{width:100%;max-width:540px}}
.btn{padding:13px 30px;border-radius:12px;font-size:15px;font-weight:600;transition:all .25s;cursor:pointer;border:none;display:inline-flex;align-items:center;gap:8px}
.btn-primary{background:linear-gradient(135deg,var(--blue),var(--cyan));color:#fff;box-shadow:0 6px 24px rgba(6,182,212,.3)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 36px rgba(6,182,212,.45)}
.btn-ghost{background:rgba(255,255,255,.04);color:var(--txt);border:1px solid var(--border2);backdrop-filter:blur(8px)}
.btn-ghost:hover{background:rgba(255,255,255,.08);border-color:rgba(6,182,212,.3)}

/* ===== Step Cards (四步法 - 去emoji, 用编号圆) ===== */
.steps-wrap{position:relative}
.steps-line{display:none;position:absolute;top:32px;left:12%;right:12%;height:2px;background:linear-gradient(90deg,var(--blue),var(--cyan),var(--purple),var(--gold));opacity:.25;border-radius:1px}
@media(min-width:992px){.steps-line{display:block}}
.grid{display:grid;gap:24px}
.grid-2{grid-template-columns:1fr}
.grid-3{grid-template-columns:1fr}
.grid-4{grid-template-columns:1fr}
@media(min-width:576px){.grid-2{grid-template-columns:repeat(2,1fr)}}
@media(min-width:768px){.grid-3{grid-template-columns:repeat(2,1fr)}}
@media(min-width:992px){.grid-3{grid-template-columns:repeat(3,1fr)}.grid-4{grid-template-columns:repeat(4,1fr)}}

.step-card{background:var(--glass);backdrop-filter:blur(12px);border:1px solid var(--border);border-radius:var(--radius);padding:36px 28px 32px;position:relative;transition:all .35s;overflow:hidden}
.step-card::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--blue),var(--cyan));opacity:0;transition:opacity .3s}
.step-card:hover{border-color:rgba(6,182,212,.2);transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.step-card:hover::before{opacity:1}
.step-icon{width:56px;height:56px;border-radius:16px;display:flex;align-items:center;justify-content:center;font-size:24px;font-weight:800;margin-bottom:24px;position:relative}
.step-icon.s1{background:linear-gradient(135deg,rgba(59,130,246,.15),rgba(59,130,246,.05));color:var(--blue2);border:1px solid rgba(59,130,246,.2)}
.step-icon.s2{background:linear-gradient(135deg,rgba(6,182,212,.15),rgba(6,182,212,.05));color:var(--cyan2);border:1px solid rgba(6,182,212,.2)}
.step-icon.s3{background:linear-gradient(135deg,rgba(139,92,246,.15),rgba(139,92,246,.05));color:var(--purple);border:1px solid rgba(139,92,246,.2)}
.step-icon.s4{background:linear-gradient(135deg,rgba(245,158,11,.15),rgba(245,158,11,.05));color:var(--gold2);border:1px solid rgba(245,158,11,.2)}
.step-card h3{font-size:20px;font-weight:700;margin-bottom:10px;letter-spacing:-.3px}
.step-card .step-desc{color:var(--txt2);font-size:14px;margin-bottom:20px;line-height:1.6}
.step-list{list-style:none}
.step-list li{padding:7px 0;color:var(--txt2);font-size:14px;display:flex;align-items:flex-start;gap:10px;line-height:1.5}
.step-list li::before{content:'';width:6px;height:6px;border-radius:50%;background:var(--cyan);margin-top:8px;flex-shrink:0}
.step-num-label{position:absolute;top:28px;right:28px;font-size:13px;font-weight:700;color:var(--txt3);letter-spacing:1px}

/* ===== Agent Cards (智能体 - 去空banner, 加mini mock) ===== */
.case-card{background:var(--glass);backdrop-filter:blur(12px);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:all .35s;cursor:pointer;display:block;position:relative}
.case-card:hover{border-color:rgba(6,182,212,.25);transform:translateY(-6px);box-shadow:var(--shadow-hover)}
.case-card-strip{height:4px;background:linear-gradient(90deg,var(--blue),var(--cyan))}
.case-card-strip.purple{background:linear-gradient(90deg,var(--purple),var(--cyan2))}
.case-card-strip.green{background:linear-gradient(90deg,var(--green),var(--cyan))}
.case-card-strip.amber{background:linear-gradient(90deg,var(--gold),var(--gold2))}
.case-card-body{padding:28px 24px}
.case-card-tag{display:inline-block;padding:4px 12px;border-radius:8px;font-size:11px;font-weight:700;margin-bottom:14px}
.case-card h3{font-size:18px;font-weight:700;margin-bottom:10px;letter-spacing:-.2px}
.case-card p{color:var(--txt2);font-size:13px;line-height:1.65;margin-bottom:18px}
.case-card-mini{background:rgba(30,40,56,.5);border:1px solid var(--border);border-radius:var(--radius3);padding:14px 16px;margin-bottom:16px;font-family:var(--mono);font-size:12px;line-height:1.6}
.case-card-mini .mini-label{color:var(--txt3);font-size:11px;margin-bottom:6px;font-family:var(--font)}
.case-card-mini .mini-row{display:flex;align-items:center;gap:8px;color:var(--txt2)}
.case-card-mini .mini-bar{height:6px;border-radius:3px;background:var(--ink4);overflow:hidden;margin:6px 0}
.case-card-mini .mini-bar-fill{height:100%;border-radius:3px}
.case-metrics{display:flex;gap:16px;padding-top:16px;border-top:1px solid var(--border)}
.case-metric{text-align:center;flex:1}
.case-metric .num{font-size:20px;font-weight:800;color:var(--cyan);letter-spacing:-.5px}
.case-metric .label{font-size:11px;color:var(--txt3);margin-top:2px}

/* ===== Generic Card ===== */
.card{background:var(--glass);backdrop-filter:blur(12px);border:1px solid var(--border);border-radius:var(--radius);padding:32px;transition:all .3s;position:relative;overflow:hidden}
.card:hover{border-color:rgba(6,182,212,.2);transform:translateY(-4px);box-shadow:var(--shadow)}
.card-icon{width:48px;height:48px;border-radius:12px;display:flex;align-items:center;justify-content:center;font-size:24px;margin-bottom:20px}
.card h3{font-size:18px;font-weight:700;margin-bottom:10px}
.card p{color:var(--txt2);font-size:14px;line-height:1.6}
.card-link{display:inline-flex;align-items:center;gap:6px;color:var(--cyan);font-size:14px;font-weight:600;margin-top:16px;transition:gap .2s}
.card:hover .card-link{gap:10px}

/* ===== Detail Page ===== */
.detail-hero{padding:120px 0 56px;background:linear-gradient(180deg,var(--ink2),var(--ink));position:relative;overflow:hidden;border-bottom:1px solid var(--border)}
.detail-hero .container{position:relative;z-index:1}
.breadcrumb{display:flex;align-items:center;gap:8px;color:var(--txt3);font-size:13px;margin-bottom:24px}
.breadcrumb a:hover{color:var(--cyan)}
.breadcrumb span{color:var(--txt2)}
.detail-title{font-size:30px;font-weight:900;letter-spacing:-1.5px;margin-bottom:16px}
@media(min-width:768px){.detail-title{font-size:42px}}
.detail-subtitle{color:var(--txt2);font-size:17px;max-width:700px;line-height:1.6}
.detail-tags{display:flex;gap:10px;margin-top:20px;flex-wrap:wrap}
.detail-tag{padding:5px 14px;border-radius:8px;font-size:13px;font-weight:600}

/* ===== Mock UI ===== */
.mock-window{background:var(--ink3);border:1px solid var(--border2);border-radius:var(--radius);overflow:hidden;box-shadow:var(--shadow-lg)}
.mock-titlebar{background:var(--ink4);padding:10px 16px;display:flex;align-items:center;gap:8px;border-bottom:1px solid var(--border)}
.mock-dot{width:12px;height:12px;border-radius:50%}
.mock-dot.r{background:#ff5f56}.mock-dot.y{background:#ffbd2e}.mock-dot.g{background:#27c93f}
.mock-title{font-size:13px;color:var(--txt3);margin-left:8px}
.mock-body{padding:24px}
.mock-stat-row{display:flex;gap:16px;margin-bottom:20px}
.mock-stat{flex:1;background:var(--ink2);border:1px solid var(--border);border-radius:var(--radius3);padding:16px}
.mock-stat .val{font-size:28px;font-weight:800}
.mock-stat .val.up{color:var(--green)}.mock-stat .val.down{color:var(--red)}
.mock-stat .lbl{font-size:12px;color:var(--txt3);margin-top:4px}
.mock-stat .delta{font-size:12px;margin-top:6px}
.mock-stat .delta.up{color:var(--green)}.mock-stat .delta.down{color:var(--red)}
.mock-table{width:100%;border-collapse:collapse;font-size:13px}
.mock-table th{text-align:left;padding:10px 12px;color:var(--txt3);font-weight:600;border-bottom:1px solid var(--border);font-size:12px;text-transform:uppercase;letter-spacing:.5px}
.mock-table td{padding:10px 12px;border-bottom:1px solid var(--border);color:var(--txt2)}
.mock-table tr:hover td{background:rgba(255,255,255,.02)}
.mock-badge{display:inline-block;padding:2px 10px;border-radius:6px;font-size:11px;font-weight:600}
.mock-badge.green{background:rgba(16,185,129,.15);color:var(--green)}
.mock-badge.blue{background:rgba(59,130,246,.15);color:var(--blue2)}
.mock-badge.amber{background:rgba(245,158,11,.15);color:var(--gold)}
.mock-badge.red{background:rgba(239,68,68,.15);color:var(--red)}
.mock-badge.purple{background:rgba(139,92,246,.15);color:var(--purple)}
.mock-progress{height:8px;background:var(--ink4);border-radius:4px;overflow:hidden;margin-top:8px}
.mock-progress-bar{height:100%;border-radius:4px;transition:width 1s}
.mock-chat{display:flex;flex-direction:column;gap:12px}
.mock-msg{max-width:75%;padding:10px 14px;border-radius:12px;font-size:13px;line-height:1.5}
.mock-msg.user{align-self:flex-end;background:var(--blue);color:#fff;border-bottom-right-radius:4px}
.mock-msg.ai{align-self:flex-start;background:var(--ink4);color:var(--txt);border-bottom-left-radius:4px}
.mock-msg .msg-meta{font-size:11px;color:var(--txt3);margin-top:4px}

/* ===== Process Timeline ===== */
.timeline{position:relative;padding-left:40px}
.timeline::before{content:'';position:absolute;left:15px;top:0;bottom:0;width:2px;background:linear-gradient(180deg,var(--blue),var(--cyan),transparent)}
.timeline-item{position:relative;padding-bottom:40px}
.timeline-item:last-child{padding-bottom:0}
.timeline-dot{position:absolute;left:-33px;top:4px;width:18px;height:18px;border-radius:50%;background:var(--ink3);border:3px solid var(--cyan);z-index:1}
.timeline-item h4{font-size:17px;font-weight:700;margin-bottom:8px}
.timeline-item p{color:var(--txt2);font-size:14px;line-height:1.6}
.timeline-item .timeline-time{font-size:12px;color:var(--txt3);margin-bottom:6px}

/* ===== Metrics Banner ===== */
.metrics-banner{display:grid;grid-template-columns:repeat(2,1fr);gap:24px 0;padding:40px 32px;background:var(--glass);backdrop-filter:blur(12px);border:1px solid var(--border);border-radius:var(--radius);position:relative}
.metric-big:not(:last-child)::after{display:none}
@media(min-width:768px){.metrics-banner{grid-template-columns:repeat(4,1fr);gap:0}.metric-big:not(:last-child)::after{display:block}}
.metrics-banner::before{content:'';position:absolute;top:0;left:20%;right:20%;height:2px;background:linear-gradient(90deg,transparent,var(--cyan),transparent);border-radius:1px}
.metric-big{text-align:center;position:relative;padding:0 16px}
.metric-big:not(:last-child)::after{content:'';position:absolute;right:0;top:20%;bottom:20%;width:1px;background:var(--border)}
.metric-big .num{font-size:42px;font-weight:900;background:linear-gradient(135deg,var(--cyan2),var(--blue2));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text;letter-spacing:-1px}
.metric-big .label{color:var(--txt2);font-size:13px;margin-top:6px;line-height:1.4}

/* ===== Feature List ===== */
.feature-row{display:flex;flex-direction:column;gap:32px;align-items:flex-start;margin-bottom:56px}
@media(min-width:768px){.feature-row{flex-direction:row;gap:48px}.feature-row:nth-child(even){flex-direction:row-reverse}}
.feature-text{flex:1}
.feature-text h3{font-size:24px;font-weight:700;margin-bottom:12px;letter-spacing:-.3px}
.feature-text p{color:var(--txt2);font-size:15px;line-height:1.7;margin-bottom:16px}
.feature-text ul{list-style:none}
.feature-text ul li{padding:6px 0;color:var(--txt2);font-size:14px;display:flex;align-items:flex-start;gap:10px}
.feature-text ul li::before{content:'✓';color:var(--green);font-weight:700;flex-shrink:0}
.feature-visual{flex:1}

/* ===== Scenario Card ===== */
.scenario-card{background:var(--glass);backdrop-filter:blur(12px);border:1px solid var(--border);border-radius:var(--radius);padding:28px;transition:all .3s;position:relative;overflow:hidden}
.scenario-card:hover{border-color:rgba(6,182,212,.2);transform:translateY(-4px);box-shadow:var(--shadow)}
.scenario-card .scn-num{position:absolute;top:16px;right:20px;font-size:40px;font-weight:900;color:rgba(255,255,255,.04)}
.scenario-card .scn-cat{display:inline-block;padding:3px 10px;border-radius:6px;font-size:11px;font-weight:600;margin-bottom:12px}
.scenario-card h3{font-size:17px;font-weight:700;margin-bottom:10px}
.scenario-card .scn-desc{color:var(--txt2);font-size:13px;line-height:1.65;margin-bottom:16px}
.scenario-card .scn-steps{display:flex;gap:8px;margin-bottom:16px;flex-wrap:wrap}
.scenario-card .scn-step{padding:4px 10px;background:var(--ink4);border-radius:6px;font-size:11px;color:var(--txt2)}
.scenario-card .scn-metrics{display:flex;gap:16px;padding-top:14px;border-top:1px solid var(--border)}
.scenario-card .scn-metric{flex:1}
.scenario-card .scn-metric .num{font-size:18px;font-weight:800;color:var(--cyan)}
.scenario-card .scn-metric .lbl{font-size:11px;color:var(--txt3)}
.scenario-card .scn-client{font-size:12px;color:var(--txt3);margin-top:10px;padding-top:10px;border-top:1px solid var(--border)}

/* ===== Product Card ===== */
.product-card{background:var(--glass);backdrop-filter:blur(12px);border:1px solid var(--border);border-radius:var(--radius);padding:36px;transition:all .3s;position:relative;overflow:hidden}
.product-card:hover{border-color:rgba(6,182,212,.2);transform:translateY(-4px)}
.product-card .prod-glow{position:absolute;top:-50%;right:-30%;width:300px;height:300px;border-radius:50%;opacity:.06;filter:blur(60px)}
.product-card .prod-icon{font-size:36px;margin-bottom:20px}
.product-card h3{font-size:22px;font-weight:700;margin-bottom:8px}
.product-card .prod-en{color:var(--txt3);font-size:13px;margin-bottom:16px}
.product-card p{color:var(--txt2);font-size:14px;line-height:1.6;margin-bottom:20px}
.product-card .prod-features{list-style:none;margin-bottom:20px}
.product-card .prod-features li{padding:5px 0;color:var(--txt2);font-size:13px;display:flex;align-items:center;gap:8px}
.product-card .prod-features li::before{content:'·';color:var(--cyan);font-size:20px}
.product-card .prod-price{padding-top:16px;border-top:1px solid var(--border);display:flex;align-items:baseline;gap:8px}
.product-card .prod-price .price{font-size:24px;font-weight:800;color:var(--cyan)}
.product-card .prod-price .unit{font-size:13px;color:var(--txt3)}

/* ===== Security Mechanism ===== */
.sec-mech{background:var(--glass);backdrop-filter:blur(12px);border:1px solid var(--border);border-radius:var(--radius);padding:32px;transition:all .3s}
.sec-mech:hover{border-color:rgba(6,182,212,.2)}
.sec-mech .sec-num{font-size:14px;font-weight:700;color:var(--cyan);margin-bottom:8px}
.sec-mech h3{font-size:18px;font-weight:700;margin-bottom:10px}
.sec-mech .sec-q{font-size:13px;color:var(--gold);font-style:italic;margin-bottom:12px;padding:8px 12px;background:rgba(245,158,11,.06);border-radius:8px;border-left:3px solid var(--gold)}
.sec-mech p{color:var(--txt2);font-size:14px;line-height:1.6;margin-bottom:12px}
.sec-mech .sec-table{width:100%;font-size:12px;border-collapse:collapse;margin-top:8px}
.sec-mech .sec-table th{text-align:left;padding:8px;color:var(--txt3);border-bottom:1px solid var(--border);font-size:11px;text-transform:uppercase}
.sec-mech .sec-table td{padding:8px;color:var(--txt2);border-bottom:1px solid var(--border)}

/* ===== Footer ===== */
.footer{background:var(--ink2);border-top:1px solid var(--border);padding:56px 0 28px;margin-top:80px}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px;margin-bottom:36px}
@media(min-width:576px){.footer-grid{grid-template-columns:1fr 1fr;gap:40px}}
@media(min-width:992px){.footer-grid{grid-template-columns:2fr 1fr 1fr 1fr}}
.footer-col h4{font-size:14px;font-weight:700;margin-bottom:16px;color:var(--txt)}
.footer-col a{display:block;color:var(--txt2);font-size:13px;padding:4px 0;transition:color .2s}
.footer-col a:hover{color:var(--cyan)}
.footer-brand{font-size:20px;font-weight:800;margin-bottom:12px}
.footer-brand span{color:var(--cyan)}
.footer-desc{color:var(--txt2);font-size:13px;line-height:1.6;max-width:300px}
.footer-bottom{padding-top:24px;border-top:1px solid var(--border);display:flex;justify-content:space-between;align-items:center;color:var(--txt3);font-size:12px;flex-wrap:wrap;gap:10px}

/* ===== Misc ===== */
.highlight-box{background:rgba(6,182,212,.05);border:1px solid rgba(6,182,212,.2);border-radius:var(--radius);padding:24px;margin:24px 0}
.highlight-box h4{color:var(--cyan);font-size:15px;margin-bottom:8px}
.highlight-box p{color:var(--txt2);font-size:14px;line-height:1.6}
.pain-point{display:flex;gap:16px;padding:16px;background:rgba(239,68,68,.05);border:1px solid rgba(239,68,68,.15);border-radius:var(--radius3);margin-bottom:12px;align-items:flex-start}
.pain-point .icon{font-size:20px;flex-shrink:0}
.pain-point p{color:var(--txt2);font-size:13px}
.solution-point{display:flex;gap:16px;padding:16px;background:rgba(16,185,129,.05);border:1px solid rgba(16,185,129,.15);border-radius:var(--radius3);margin-bottom:12px;align-items:flex-start}
.solution-point .icon{font-size:20px;flex-shrink:0}
.solution-point p{color:var(--txt2);font-size:13px}
.divider{height:1px;background:linear-gradient(90deg,transparent,var(--border2),transparent);margin:48px 0}
.tag-cloud{display:flex;gap:8px;flex-wrap:wrap;margin:16px 0}
.tag-cloud span{padding:4px 12px;background:var(--ink4);border:1px solid var(--border);border-radius:20px;font-size:12px;color:var(--txt2)}

/* ===== FAQ ===== */
details.card{cursor:pointer}
details.card summary{list-style:none}
details.card summary::-webkit-details-marker{display:none}
details.card summary::after{content:'+';float:right;font-size:20px;color:var(--txt3);transition:transform .2s}
details.card[open] summary::after{transform:rotate(45deg)}
details.card[open]{border-color:rgba(6,182,212,.15)}

/* ===== Simple Steps (cases.html 简化版四步法) ===== */
.steps{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:20px}
.step{background:var(--glass);backdrop-filter:blur(12px);border:1px solid var(--border);border-radius:var(--radius2);padding:28px 24px;position:relative;transition:all .3s;overflow:hidden}
.step::before{content:'';position:absolute;top:0;left:0;width:4px;height:100%;background:linear-gradient(180deg,var(--blue),var(--cyan));opacity:0;transition:opacity .3s}
.step:hover{border-color:rgba(6,182,212,.2);transform:translateY(-4px);box-shadow:var(--shadow)}
.step:hover::before{opacity:1}
.step-num{font-size:32px;font-weight:900;color:var(--ink4);letter-spacing:-1px;margin-bottom:12px;line-height:1}
.step-title{font-size:18px;font-weight:700;margin-bottom:8px;color:var(--txt)}
.step-desc{color:var(--txt2);font-size:13px;line-height:1.7}

/* ===== Case Study Cards (richer layout) ===== */
.case-study-grid{display:grid;grid-template-columns:1fr;gap:24px}
@media(min-width:768px){.case-study-grid{grid-template-columns:repeat(2,1fr)}}

.case-study{background:var(--glass);backdrop-filter:blur(12px);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:all .35s;display:flex;flex-direction:column;position:relative}
.case-study:hover{border-color:rgba(6,182,212,.25);transform:translateY(-6px);box-shadow:var(--shadow-hover)}
.case-study::before{content:'';position:absolute;top:0;left:0;right:0;height:3px;background:linear-gradient(90deg,var(--blue),var(--cyan));opacity:0;transition:opacity .3s}
.case-study:hover::before{opacity:1}

.case-study-banner{height:120px;display:flex;align-items:center;justify-content:space-between;padding:0 28px;position:relative;overflow:hidden;border-bottom:1px solid var(--border)}
.case-study-banner::after{content:'';position:absolute;top:-50%;right:-20%;width:220px;height:220px;border-radius:50%;background:radial-gradient(circle,rgba(255,255,255,.08),transparent 65%);pointer-events:none}
.case-study-banner.b1{background:linear-gradient(135deg,rgba(59,130,246,.12),rgba(6,182,212,.06))}
.case-study-banner.b2{background:linear-gradient(135deg,rgba(139,92,246,.12),rgba(6,182,212,.06))}
.case-study-banner.b3{background:linear-gradient(135deg,rgba(16,185,129,.12),rgba(6,182,212,.06))}
.case-study-banner.b4{background:linear-gradient(135deg,rgba(245,158,11,.12),rgba(6,182,212,.06))}
.case-study-icon{font-size:42px;position:relative;z-index:1}
.case-study-cat{text-align:right;position:relative;z-index:1}
.case-study-cat .cat-name{font-size:13px;font-weight:700;color:var(--txt)}
.case-study-cat .cat-sub{font-size:11px;color:var(--txt2);margin-top:2px}

.case-study-body{padding:22px 24px 20px;flex:1;display:flex;flex-direction:column}
.case-study-title{font-size:17px;font-weight:700;margin-bottom:8px;letter-spacing:-.2px}
.case-study-desc{color:var(--txt2);font-size:13px;line-height:1.7;margin-bottom:14px}

.case-study-flow{display:flex;align-items:center;gap:8px;margin-bottom:14px;padding:10px 12px;background:var(--ink3);border-radius:10px;border:1px solid var(--border)}
.case-study-flow .flow-item{font-size:11px;color:var(--txt2);white-space:nowrap}
.case-study-flow .flow-arrow{color:var(--txt3);font-size:11px}

.case-study-mock{flex:1;min-height:90px;background:var(--ink3);border:1px solid var(--border);border-radius:var(--radius3);padding:12px 14px;margin-bottom:14px;font-family:var(--mono);font-size:11px;overflow:hidden}
.case-study-mock .mock-title{display:flex;justify-content:space-between;align-items:center;margin-bottom:8px;font-family:var(--font);font-size:10px;color:var(--txt3)}

.case-study-meta{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:14px}
.case-study-tag{font-size:10px;padding:3px 10px;background:var(--ink4);border:1px solid var(--border);border-radius:20px;color:var(--txt2)}
.case-study-tag.accent{background:rgba(6,182,212,.08);border-color:rgba(6,182,212,.2);color:var(--cyan)}

.case-study-results{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;border-top:1px solid var(--border);padding-top:14px}
.case-study-result{text-align:center}
.case-study-result .r-num{font-size:18px;font-weight:800;color:var(--cyan);letter-spacing:-.3px}
.case-study-result .r-label{font-size:10px;color:var(--txt3);margin-top:3px}

/* 对比矩阵 */
.comparison-table{width:100%;border-collapse:collapse;font-size:13px}
.comparison-table th,.comparison-table td{padding:12px 16px;border-bottom:1px solid var(--border)}
.comparison-table th{text-align:left;color:var(--txt3);font-weight:600;font-size:12px;text-transform:uppercase;letter-spacing:.5px}
.comparison-table td{color:var(--txt2)}
.comparison-table td:first-child{font-weight:600;color:var(--txt)}
.comparison-table .metric-val{font-weight:700;color:var(--cyan)}
.comparison-table tr:hover td{background:rgba(255,255,255,.02)}

/* 行业地图 */
.industry-map{display:grid;grid-template-columns:1fr;gap:16px;text-align:center}
@media(min-width:576px){.industry-map{grid-template-columns:repeat(2,1fr)}}
@media(min-width:992px){.industry-map{grid-template-columns:repeat(4,1fr)}}
.industry-node{background:var(--glass);border:1px solid var(--border);border-radius:var(--radius2);padding:18px 12px}
.industry-node .in-icon{font-size:28px;margin-bottom:8px}
.industry-node .in-title{font-size:14px;font-weight:700;color:var(--txt)}
.industry-node .in-count{font-size:12px;color:var(--txt2);margin-top:4px}

/* ===== 科技感背景特效 ===== */
/* 隐形网格 */
body::after{
  content:'';position:fixed;top:0;left:0;width:100%;height:100%;z-index:0;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(138,150,170,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(138,150,170,.035) 1px,transparent 1px);
  background-size:50px 50px;
  mask-image:radial-gradient(ellipse at center,black 40%,transparent 90%);
  -webkit-mask-image:radial-gradient(ellipse at center,black 40%,transparent 90%);
}

/* 漂浮渐变光球容器 */
.bg-orbs{position:fixed;top:0;left:0;width:100%;height:100%;z-index:0;pointer-events:none;overflow:hidden}
.bg-orb{position:absolute;border-radius:50%;filter:blur(50px);opacity:.6}
.bg-orb.o1{width:600px;height:600px;top:5%;left:10%;background:radial-gradient(circle,rgba(59,130,246,.15),transparent 70%);animation:orbFloat1 22s ease-in-out infinite}
.bg-orb.o2{width:500px;height:500px;top:45%;left:65%;background:radial-gradient(circle,rgba(6,182,212,.12),transparent 70%);animation:orbFloat2 28s ease-in-out infinite}
.bg-orb.o3{width:450px;height:450px;top:65%;left:25%;background:radial-gradient(circle,rgba(139,92,246,.1),transparent 70%);animation:orbFloat3 25s ease-in-out infinite}

@keyframes orbFloat1{0%,100%{transform:translate(0,0) scale(1)}33%{transform:translate(100px,-60px) scale(1.1)}66%{transform:translate(-40px,80px) scale(.95)}}
@keyframes orbFloat2{0%,100%{transform:translate(0,0) scale(1)}33%{transform:translate(-80px,70px) scale(1.08)}66%{transform:translate(60px,-50px) scale(.92)}}
@keyframes orbFloat3{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(70px,60px) scale(1.12)}}

/* 扫描线动画 */
.bg-scanline{position:fixed;top:0;left:0;right:0;height:2px;z-index:0;pointer-events:none;
  background:linear-gradient(90deg,transparent,rgba(6,182,212,.4),rgba(59,130,246,.3),transparent);
  animation:scanMove 8s linear infinite;opacity:.5}
@keyframes scanMove{0%{top:0}100%{top:100vh}}