/* 首页专属样式 */
.hero{
  position:relative;padding:160px 0 80px;overflow:hidden;
  background:
    radial-gradient(900px 500px at 78% 12%,rgba(236,72,153,0.24),transparent 62%),
    radial-gradient(720px 400px at 18% 88%,rgba(99,102,241,0.22),transparent 70%),
    radial-gradient(560px 360px at 50% 50%,rgba(6,182,212,0.10),transparent 80%),
    linear-gradient(180deg,#0b0e14 0%,#0e131c 100%);
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,0.025) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,0.025) 1px,transparent 1px);
  background-size:48px 48px;
  mask-image:radial-gradient(ellipse 70% 60% at 50% 30%,#000 30%,transparent 75%);
  -webkit-mask-image:radial-gradient(ellipse 70% 60% at 50% 30%,#000 30%,transparent 75%);
}
.hero .container{position:relative;z-index:2}
.hero-grid{
  display:grid;grid-template-columns:1.05fr .95fr;gap:60px;align-items:center;position:relative;z-index:1;
}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:100px;font-size:13px;
  background:var(--bg-card-hover);border:1px solid var(--border-hover);
  color:var(--brand-1);margin-bottom:24px;
}
.hero-eyebrow .dot{
  width:8px;height:8px;border-radius:50%;background:var(--brand-1);
  box-shadow:0 0 0 4px rgba(74,158,255,0.2);
  animation:pulse 2s ease-in-out infinite;
}
.hero h1{
  font-size:clamp(36px,5.5vw,64px);font-weight:800;color:fff;
  line-height:1.15;letter-spacing:-1px;margin-bottom:20px;
}
.hero h1 .grad{
  background:linear-gradient(120deg,#a78bfa 0%,#ec4899 35%,#f97316 70%,#fbbf24 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-desc{font-size:17px;color:var(--text-secondary);max-width:520px;margin-bottom:36px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.hero-stats{
  display:flex;gap:40px;margin-top:48px;padding-top:32px;
  border-top:1px solid var(--border);flex-wrap:wrap;
}
.hero-stat .num{
  font-size:28px;font-weight:700;color:fff;
  background:var(--gradient);-webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-stat .lbl{font-size:13px;color:var(--text-tertiary);margin-top:2px}

/* Hero 信任条 - 横向 4 项指标 + 间隔点 */
.hero-trust{
  display:flex;align-items:center;gap:14px;flex-wrap:wrap;
  margin-top:24px;padding-top:20px;
  border-top:1px dashed var(--border);
  font-size:13px;color:var(--text-secondary);
}
.hero-trust svg{width:14px;height:14px;color:#10b981;vertical-align:middle;margin-right:4px}
.hero-trust .dot{
  width:4px;height:4px;border-radius:50%;background:var(--text-tertiary);
  flex:none;opacity:.5;
}

/* Hero 视觉 */
.hero-visual{position:relative;height:480px;display:grid;place-items:center}
.ring{position:absolute;border-radius:50%;border:1px solid rgba(74,158,255,.25)}
.ring-1{width:300px;height:300px;animation:ringPulse 3s ease-in-out infinite}
.ring-2{width:400px;height:400px;border-color:rgba(74,158,255,.18);animation:ringPulse 3s ease-in-out infinite .4s}
.ring-3{width:500px;height:500px;border-color:rgba(74,158,255,.12);animation:ringPulse 3s ease-in-out infinite .8s}
@keyframes ringPulse{0%,100%{transform:scale(1);opacity:1}50%{transform:scale(1.06);opacity:.6}}
.ring-core{
  position:relative;width:200px;height:200px;border-radius:50%;
  background:radial-gradient(circle at 30% 30%,#a78bfa,#ec4899 50%,#6366f1 80%,#0b0e14 100%);
  display:grid;place-items:center;
  box-shadow:0 30px 80px rgba(236,72,153,.45),0 0 0 1px rgba(255,255,255,.06) inset;
  animation:float 4s ease-in-out infinite;
}
.ring-core svg{width:80px;height:80px;color:fff}
.orbit-dot{
  position:absolute;width:14px;height:14px;border-radius:50%;
  background:var(--brand-1);box-shadow:0 0 20px var(--brand-1);
}
.orbit-dot.dot-1{top:20%;left:50%;transform:translateX(-50%)}
.orbit-dot.dot-2{bottom:25%;right:18%}
.orbit-dot.dot-3{bottom:18%;left:18%}
.orbit-satellite{
  position:absolute;width:54px;height:54px;border-radius:14px;
  background:rgba(17,21,31,.85);border:1px solid var(--border-hover);
  display:grid;place-items:center;backdrop-filter:blur(10px);
  box-shadow:0 10px 30px rgba(0,0,0,.4);
}
.orbit-satellite svg{width:26px;height:26px;color:var(--brand-1)}
.sat-1{top:8%;right:6%;animation:float 5s ease-in-out infinite}
.sat-2{bottom:6%;left:6%;animation:float 6s ease-in-out infinite 1s}

/* ============== Quickstart（3 步快速上手 - 横向步骤条） ============== */
.quickstart-steps{
  list-style:none;padding:0;margin:0;display:grid;
  grid-template-columns:repeat(3,1fr);gap:0;
  background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);
  overflow:hidden;
}
.quickstart-steps .qs-step{
  display:grid;grid-template-columns:auto auto 1fr;gap:18px;
  align-items:flex-start;padding:32px 28px;position:relative;
  border-right:1px solid var(--border);transition:background .3s;
}
.quickstart-steps .qs-step:last-child{border-right:none}
.quickstart-steps .qs-step:hover{background:var(--bg-card-hover)}
.quickstart-steps .qs-num{
  font-size:32px;font-weight:800;line-height:1;
  background:var(--gradient);-webkit-background-clip:text;background-clip:text;color:transparent;
  font-family:'JetBrains Mono',ui-monospace,monospace;
}
.quickstart-steps .qs-arrow{
  width:36px;height:36px;border-radius:10px;
  background:linear-gradient(135deg,rgba(236,72,153,.18),rgba(99,102,241,.14));
  border:1px solid var(--border-hover);
  display:grid;place-items:center;color:var(--brand-2);
}
.quickstart-steps .qs-arrow svg{width:16px;height:16px}
.quickstart-steps .qs-body h3{font-size:19px;color:#fff;font-weight:600;margin-bottom:8px}
.quickstart-steps .qs-body p{font-size:14px;color:var(--text-tertiary);line-height:1.7;margin-bottom:10px}
.quickstart-steps .qs-tip{
  display:inline-block;font-size:12.5px;padding:6px 12px;border-radius:8px;
  background:rgba(99,102,241,.10);border:1px dashed var(--border-hover);
  color:var(--brand-1);font-family:'JetBrains Mono',ui-monospace,monospace;
}
.quickstart-steps .qs-link{
  display:inline-block;font-size:13px;color:var(--brand-2);font-weight:500;margin-top:10px;
  transition:color .3s;
}
.quickstart-steps .qs-link:hover{color:var(--brand-1)}

@media (max-width:1024px){
  .quickstart-steps{grid-template-columns:1fr}
  .quickstart-steps .qs-step{border-right:none;border-bottom:1px solid var(--border)}
  .quickstart-steps .qs-step:last-child{border-bottom:none}
}
@media (max-width:768px){
  .quickstart-steps .qs-step{grid-template-columns:auto 1fr;padding:24px 20px}
  .quickstart-steps .qs-arrow{grid-column:1/-1;justify-self:start}
}

/* ============== 5 步安全防护（横向五宫格） ============== */
.security-steps-section{
  position:relative;
  background:
    radial-gradient(820px 420px at 10% 20%,rgba(236,72,153,.10),transparent 60%),
    radial-gradient(640px 360px at 92% 80%,rgba(6,182,212,.10),transparent 65%),
    linear-gradient(180deg,var(--bg-primary) 0%,var(--bg-secondary) 100%);
}
.security-steps{
  list-style:none;padding:0;margin:0;display:grid;
  grid-template-columns:repeat(5,1fr);gap:14px;counter-reset:ssstep;
}
.security-steps .ss-step{
  position:relative;padding:24px 22px;
  background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);
  transition:all .3s ease;overflow:hidden;
}
.security-steps .ss-step::before{
  content:"";position:absolute;left:0;right:0;top:0;height:3px;
  background:var(--gradient);transform:scaleX(0);transform-origin:left;
  transition:transform .4s ease;
}
.security-steps .ss-step:hover{border-color:var(--border-hover);transform:translateY(-4px);box-shadow:var(--shadow)}
.security-steps .ss-step:hover::before{transform:scaleX(1)}
.security-steps .ss-icon{
  width:46px;height:46px;border-radius:12px;
  background:linear-gradient(135deg,rgba(236,72,153,.18),rgba(99,102,241,.12));
  border:1px solid var(--border-hover);
  display:grid;place-items:center;color:#fff;margin-bottom:14px;
}
.security-steps .ss-icon svg{width:22px;height:22px}
.security-steps .ss-num{
  display:inline-block;font-size:11px;font-weight:600;letter-spacing:1.2px;
  padding:3px 8px;border-radius:100px;margin-bottom:10px;
  background:rgba(99,102,241,.12);color:var(--brand-1);
  font-family:'JetBrains Mono',ui-monospace,monospace;
}
.security-steps .ss-step h3{font-size:16px;color:#fff;font-weight:600;margin-bottom:8px}
.security-steps .ss-step p{font-size:13px;color:var(--text-tertiary);line-height:1.7}

@media (max-width:1024px){
  .security-steps{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:768px){
  .security-steps{grid-template-columns:1fr}
}

/* ============== 4 步选节点（纵向卡片网格） ============== */
.pick-node{
  background:
    radial-gradient(700px 380px at 90% 0%,rgba(99,102,241,.08),transparent 60%),
    var(--bg-secondary);
}
.pick-steps{
  list-style:none;padding:0;margin:0;display:grid;
  grid-template-columns:repeat(2,1fr);gap:20px;
}
.pick-steps .ps-step{
  display:grid;grid-template-columns:80px 1fr;gap:24px;align-items:start;
  background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:24px 28px;transition:all .3s ease;
}
.pick-steps .ps-step:hover{
  border-color:var(--border-hover);transform:translateY(-3px);box-shadow:var(--shadow);
}
.pick-steps .ps-num{
  font-size:38px;font-weight:800;line-height:1;
  background:var(--gradient);-webkit-background-clip:text;background-clip:text;color:transparent;
  font-family:'JetBrains Mono',ui-monospace,monospace;
}
.pick-steps .ps-body h3{font-size:18px;color:#fff;font-weight:600;margin-bottom:8px}
.pick-steps .ps-body p{font-size:14px;color:var(--text-tertiary);line-height:1.75}

@media (max-width:768px){
  .pick-steps{grid-template-columns:1fr}
  .pick-steps .ps-step{grid-template-columns:1fr;padding:20px}
  .pick-steps .ps-num{font-size:28px}
}

/* ============== 信任背书 ============== */
.trust-section{
  position:relative;
  background:
    radial-gradient(720px 400px at 12% 18%,rgba(99,102,241,.10),transparent 60%),
    radial-gradient(640px 360px at 88% 82%,rgba(251,191,36,.08),transparent 65%),
    var(--bg-secondary);
}
.trust-stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);
  overflow:hidden;margin-bottom:60px;
}
.trust-stat{padding:32px 24px;text-align:center;border-right:1px solid var(--border);transition:background .3s}
.trust-stat:last-child{border-right:none}
.trust-stat:hover{background:var(--bg-card-hover)}
.trust-stat .num{
  font-size:36px;font-weight:800;line-height:1;
  background:var(--gradient);-webkit-background-clip:text;background-clip:text;color:transparent;
  margin-bottom:6px;
}
.trust-stat .lbl{font-size:13.5px;color:var(--text-tertiary)}
.trust-stat .sub{font-size:11.5px;color:var(--text-tertiary);margin-top:4px;opacity:.7}

@media (max-width:768px){
  .trust-stats{grid-template-columns:repeat(2,1fr)}
  .trust-stat:nth-child(2){border-right:none}
  .trust-stat:nth-child(1),.trust-stat:nth-child(2){border-bottom:1px solid var(--border)}
  .trust-stat .num{font-size:28px}
}

/* 信任背书：媒体墙 + 认证墙 */
.trust-row{display:grid;grid-template-columns:1.05fr .95fr;gap:24px;margin-bottom:24px}
.trust-card{
  background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:28px;transition:all .3s;
}
.trust-card:hover{border-color:var(--border-hover);box-shadow:var(--shadow)}
.trust-card-head{
  display:flex;align-items:center;gap:12px;margin-bottom:18px;padding-bottom:14px;
  border-bottom:1px solid var(--border);
}
.trust-card-head .badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:11px;letter-spacing:1.2px;font-weight:600;
  padding:4px 10px;border-radius:100px;
  background:linear-gradient(135deg,rgba(99,102,241,.18),rgba(236,72,153,.10));
  border:1px solid var(--border-hover);color:#fff;
}
.trust-card-head h3{font-size:18px;color:#fff;font-weight:600}

/* 媒体墙 */
.media-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:12px;
}
.media-item{
  padding:14px 12px;border-radius:10px;text-align:center;
  background:rgba(255,255,255,.02);border:1px solid var(--border);
  font-size:13.5px;color:var(--text-secondary);font-weight:500;
  transition:all .3s;cursor:default;
}
.media-item:hover{color:#fff;border-color:var(--border-hover);background:rgba(99,102,241,.06);transform:translateY(-2px)}

/* 合规认证墙 */
.cert-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
.cert-item{
  display:flex;align-items:center;gap:12px;padding:14px;
  background:rgba(255,255,255,.02);border:1px solid var(--border);border-radius:10px;
  transition:all .3s;
}
.cert-item:hover{border-color:var(--border-hover);background:rgba(99,102,241,.05)}
.cert-icon{
  width:42px;height:42px;border-radius:10px;flex:none;
  background:linear-gradient(135deg,rgba(99,102,241,.20),rgba(236,72,153,.10));
  border:1px solid var(--border-hover);
  display:grid;place-items:center;color:var(--brand-1);font-weight:700;font-size:14px;
}
.cert-text .name{font-size:14px;color:#fff;font-weight:600}
.cert-text .desc{font-size:12px;color:var(--text-tertiary);margin-top:2px}

@media (max-width:1024px){
  .trust-row{grid-template-columns:1fr}
  .media-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:768px){
  .cert-grid{grid-template-columns:1fr}
  .media-grid{grid-template-columns:1fr 1fr}
}

/* 用户证言 */
.testimonials-strip{
  background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:24px 28px;display:grid;grid-template-columns:repeat(3,1fr);gap:24px;
}
.t-item{padding:0 12px;border-right:1px solid var(--border);position:relative}
.t-item:last-child{border-right:none}
.t-quote{font-size:14px;color:var(--text-secondary);line-height:1.7;font-style:italic;margin-bottom:14px}
.t-quote::before{content:""\201C"";position:absolute;left:-4px;top:-8px;font-size:48px;color:var(--brand-1);opacity:.3;font-family:Georgia,serif;line-height:1}
.t-author{display:flex;align-items:center;gap:10px}
.t-avatar{
  width:36px;height:36px;border-radius:50%;flex:none;
  background:linear-gradient(135deg,#6366f1,#ec4899);color:#fff;
  display:grid;place-items:center;font-weight:600;font-size:14px;
}
.t-meta .name{font-size:14px;color:#fff;font-weight:600}
.t-meta .role{font-size:12px;color:var(--text-tertiary);margin-top:2px}
@media (max-width:1024px){
  .testimonials-strip{grid-template-columns:1fr;gap:16px}
  .t-item{border-right:none;border-bottom:1px solid var(--border);padding-bottom:16px}
  .t-item:last-child{border-bottom:none}
}

/* ============== How It Works（步骤化） ============== */
.how-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:24px;list-style:none;padding:0;
}
.how-card{
  background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:32px 28px;position:relative;transition:all .35s ease;overflow:hidden;
}
.how-card::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--gradient);opacity:.7;
}
.how-card:hover{border-color:var(--border-hover);transform:translateY(-4px);box-shadow:var(--shadow)}
.how-num{
  font-size:42px;font-weight:800;line-height:1;
  background:var(--gradient);-webkit-background-clip:text;background-clip:text;color:transparent;
  margin-bottom:18px;font-family:'JetBrains Mono',ui-monospace,monospace;
}
.how-card h3{font-size:20px;color:fff;font-weight:600;margin-bottom:10px}
.how-card p{font-size:14.5px;color:var(--text-tertiary);line-height:1.75}
.how-input{
  margin-top:18px;padding:8px 12px;border-radius:8px;font-size:12.5px;
  background:rgba(74,158,255,.08);border:1px solid rgba(74,158,255,.2);
  color:var(--brand-1);font-family:'JetBrains Mono',ui-monospace,monospace;
}

/* 产品特性 */
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.feature-card{
  background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:32px 28px;transition:all .35s ease;position:relative;overflow:hidden;
}
.feature-card::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(135deg,transparent,rgba(74,158,255,.08));
  opacity:0;transition:opacity .35s;
}
.feature-card:hover{border-color:var(--border-hover);transform:translateY(-6px);box-shadow:var(--shadow)}
.feature-card:hover::before{opacity:1}
.feature-icon{
  width:56px;height:56px;border-radius:14px;
  background:linear-gradient(135deg,rgba(74,158,255,.18),rgba(26,109,212,.12));
  border:1px solid var(--border-hover);
  display:grid;place-items:center;margin-bottom:20px;
}
.feature-icon svg{width:26px;height:26px;color:var(--brand-1)}
.feature-card h3{font-size:19px;font-weight:600;color:fff;margin-bottom:10px;position:relative}
.feature-card p{font-size:14.5px;color:var(--text-tertiary);line-height:1.7;position:relative}

/* 使用场景 */
.usecase-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.usecase-card{
  background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:28px 24px;transition:all .35s ease;
}
.usecase-card:hover{border-color:var(--border-hover);transform:translateY(-4px);box-shadow:var(--shadow)}
.uc-ico{
  width:48px;height:48px;border-radius:12px;
  background:linear-gradient(135deg,rgba(74,158,255,.18),rgba(167,139,250,.1));
  border:1px solid var(--border-hover);
  display:grid;place-items:center;color:var(--brand-1);margin-bottom:16px;
}
.uc-ico svg{width:24px;height:24px}
.usecase-card h3{font-size:17px;color:fff;font-weight:600;margin-bottom:10px}
.usecase-card p{font-size:13.5px;color:var(--text-tertiary);line-height:1.7;margin-bottom:14px}
.uc-tag{
  display:inline-block;font-size:11.5px;padding:4px 10px;border-radius:100px;
  background:rgba(74,158,255,.1);border:1px solid rgba(74,158,255,.2);
  color:var(--brand-1);
}

/* 安全保障 */
.security{
  position:relative;
  background:
    radial-gradient(820px 420px at 18% 28%,rgba(236,72,153,.12),transparent 60%),
    radial-gradient(640px 360px at 88% 78%,rgba(99,102,241,.10),transparent 65%),
    radial-gradient(480px 320px at 50% 100%,rgba(6,182,212,.06),transparent 70%),
    linear-gradient(180deg,var(--bg-primary) 0%,var(--bg-secondary) 100%);
}
.security::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.6;
  background-image:linear-gradient(rgba(255,255,255,0.02) 1px,transparent 1px);
  background-size:100% 64px;
}
.security .container{position:relative;z-index:1}
.security-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.security-card{
  background:linear-gradient(180deg,rgba(255,255,255,.04),rgba(255,255,255,.01));
  border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:36px 30px;transition:all .35s ease;
}
.security-card:hover{border-color:var(--border-hover);transform:translateY(-4px);box-shadow:var(--shadow)}
.security-badge{
  display:inline-flex;align-items:center;gap:6px;padding:4px 12px;
  border-radius:100px;font-size:12px;background:rgba(74,158,255,.12);
  color:var(--brand-1);border:1px solid var(--border-hover);margin-bottom:18px;
}
.security-card h3{font-size:22px;font-weight:600;color:fff;margin-bottom:10px}
.security-card p{color:var(--text-tertiary);font-size:14.5px;margin-bottom:20px}
.security-list{display:flex;flex-direction:column;gap:10px}
.security-list li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--text-secondary)}
.security-list svg{width:18px;height:18px;color:var(--brand-1);flex:none;margin-top:2px}

/* 速度实测表 */
.speed-table-wrap{overflow-x:auto;border-radius:var(--radius-lg);border:1px solid var(--border)}
.speed-table{width:100%;border-collapse:collapse;background:var(--bg-card);min-width:680px}
.speed-table thead{background:rgba(74,158,255,.08)}
.speed-table th{padding:14px 18px;text-align:left;font-size:13px;color:var(--brand-1);font-weight:600;border-bottom:1px solid var(--border-hover)}
.speed-table td{padding:14px 18px;font-size:14px;color:var(--text-secondary);border-bottom:1px solid var(--border)}
.speed-table tbody tr:last-child td{border-bottom:none}
.speed-table tbody tr:hover{background:var(--bg-card-hover)}
.speed-table td:nth-child(2),.speed-table td:nth-child(3),.speed-table td:nth-child(4),.speed-table td:nth-child(5){
  font-family:'JetBrains Mono',ui-monospace,monospace;color:fff;font-weight:500;
}
.speed-note{font-size:12.5px;color:var(--text-tertiary);margin-top:14px;line-height:1.6}

/* FAQ（用 details/summary 语义化） */
.faq-wrap{max-width:880px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq-item{
  background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);
  overflow:hidden;transition:all .3s;
}
.faq-item[open]{border-color:var(--border-hover);box-shadow:var(--shadow)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;
  padding:22px 26px;text-align:left;color:fff;font-size:16px;font-weight:600;
  gap:18px;cursor:pointer;list-style:none;
}
.faq-q::-webkit-details-marker{display:none}
.faq-q::marker{display:none;content:""}
.faq-q:hover{background:var(--bg-card-hover)}
.faq-icon{
  width:32px;height:32px;border-radius:10px;background:var(--bg-card);
  border:1px solid var(--border);display:grid;place-items:center;flex:none;
  transition:all .3s;color:var(--brand-1);
}
.faq-item[open] .faq-icon{background:var(--gradient);color:fff;border-color:transparent;transform:rotate(45deg)}
.faq-icon svg{width:16px;height:16px}
.faq-a{padding:0 26px 24px;color:var(--text-secondary);font-size:14.5px;line-height:1.85}
.faq-a-inner p{margin:0}

/* 行业资讯 · 国外长篇新闻 */
.news-controls{display:flex;justify-content:center;gap:10px;flex-wrap:wrap;margin:-16px 0 36px}
.news-tab{
  padding:10px 22px;border-radius:999px;background:var(--bg-card);
  border:1px solid var(--border);color:var(--text-secondary);font-size:14px;font-weight:600;
  cursor:pointer;transition:all .25s;
}
.news-tab:hover{background:var(--bg-card-hover);color:var(--text-primary);transform:translateY(-1px)}
.news-tab.active{background:var(--gradient);color:#fff;border-color:transparent;box-shadow:0 8px 22px rgba(99,102,241,.32)}

.news-grid{
  display:grid;grid-template-columns:repeat(2,1fr);gap:26px;
}
.news-card{
  background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius-lg);
  overflow:hidden;display:flex;flex-direction:column;transition:all .3s;position:relative;
}
.news-card:hover{
  border-color:var(--border-hover);transform:translateY(-4px);
  box-shadow:0 18px 50px rgba(99,102,241,.18);
}
.news-cover{
  position:relative;aspect-ratio:16/9;overflow:hidden;background:#000;
}
.news-cover img{
  width:100%;height:100%;object-fit:cover;display:block;
  transition:transform .6s ease;
}
.news-card:hover .news-cover img{transform:scale(1.06)}
.news-cover::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 40%,rgba(11,14,20,.85) 100%);
  pointer-events:none;
}
.news-source-tag{
  position:absolute;top:14px;left:14px;z-index:2;
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 12px;border-radius:999px;background:rgba(11,14,20,.78);
  backdrop-filter:blur(8px);border:1px solid rgba(255,255,255,.12);
  font-size:12px;font-weight:700;color:#fff;letter-spacing:.4px;
}
.news-source-tag .dot{width:6px;height:6px;border-radius:50%;background:var(--brand-4);box-shadow:0 0 8px var(--brand-4)}
.news-date-overlay{
  position:absolute;bottom:14px;right:14px;z-index:2;
  padding:6px 12px;border-radius:8px;background:rgba(11,14,20,.7);
  backdrop-filter:blur(8px);font-size:12px;color:#fff;font-weight:600;
}
.news-body{padding:26px 28px 24px;display:flex;flex-direction:column;flex:1}
.news-meta{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  font-size:12px;color:var(--text-tertiary);margin-bottom:10px;
}
.news-meta .author{color:var(--brand-3);font-weight:700}
.news-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--text-tertiary)}
.news-meta .read-time{display:inline-flex;align-items:center;gap:4px}
.news-title{
  font-size:20px;font-weight:800;color:var(--text-primary);line-height:1.45;
  margin:0 0 12px;letter-spacing:.2px;
}
.news-excerpt{
  color:var(--text-secondary);font-size:14.5px;line-height:1.85;margin:0 0 18px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-bullets{
  list-style:none;padding:0;margin:0 0 20px;display:flex;flex-direction:column;gap:8px;
}
.news-bullets li{
  font-size:13.5px;color:var(--text-secondary);display:flex;gap:8px;align-items:flex-start;line-height:1.65;
}
.news-bullets li::before{
  content:"";flex:none;width:6px;height:6px;border-radius:50%;background:var(--gradient);
  margin-top:9px;
}
.news-commentary{
  margin-top:auto;padding:14px 16px;border-radius:12px;
  background:linear-gradient(135deg,rgba(99,102,241,.10),rgba(236,72,153,.06));
  border:1px solid rgba(99,102,241,.20);
}
.news-commentary-label{
  font-size:11px;font-weight:800;color:var(--brand-1);
  letter-spacing:1.4px;margin-bottom:6px;display:flex;align-items:center;gap:6px;
}
.news-commentary p{
  margin:0;color:var(--text-secondary);font-size:13px;line-height:1.75;
}
.news-foot{
  display:flex;justify-content:space-between;align-items:center;padding:14px 28px;
  border-top:1px solid var(--border);background:rgba(11,14,20,.4);
}
.news-tags{display:flex;gap:6px;flex-wrap:wrap}
.news-tag{
  font-size:11px;color:var(--text-tertiary);padding:4px 10px;
  border-radius:999px;background:var(--bg-card);border:1px solid var(--border);
  letter-spacing:.3px;
}
.news-cta{
  display:inline-flex;align-items:center;gap:4px;color:var(--brand-3);
  font-size:13px;font-weight:700;transition:gap .25s;
}
.news-cta:hover{gap:8px;color:var(--brand-2)}

.news-cta-bar{
  text-align:center;margin-top:48px;
}
.news-source-cred{
  margin-top:36px;padding-top:28px;border-top:1px dashed var(--border);
  display:flex;justify-content:center;gap:18px;flex-wrap:wrap;
  font-size:12.5px;color:var(--text-tertiary);
}
.news-source-cred strong{color:var(--text-secondary);font-weight:600}

@media (max-width:1024px){
  .news-grid{grid-template-columns:1fr;gap:22px}
}
@media (max-width:640px){
  .news-body{padding:22px 22px 20px}
  .news-title{font-size:18px}
  .news-excerpt{font-size:14px}
  .news-foot{padding:12px 22px;flex-direction:column;gap:12px;align-items:flex-start}
  .news-controls{gap:6px}
  .news-tab{padding:8px 16px;font-size:13px}
}

/* CTA */
.cta{
  background:
    linear-gradient(135deg,rgba(236,72,153,.16),rgba(99,102,241,.12),rgba(6,182,212,.10)),
    var(--bg-card);
  border:1px solid var(--border-hover);border-radius:var(--radius-lg);
  padding:56px 40px;text-align:center;position:relative;overflow:hidden;
}
.cta::before{
  content:"";position:absolute;inset:0;
  background:radial-gradient(800px 400px at 30% 0%,rgba(236,72,153,.22),transparent 70%),
             radial-gradient(700px 360px at 70% 100%,rgba(6,182,212,.16),transparent 70%);
  pointer-events:none;
}
.cta h2{font-size:32px;color:fff;font-weight:700;margin-bottom:12px;position:relative}
.cta p{font-size:16px;color:var(--text-secondary);margin-bottom:28px;position:relative}
.cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;position:relative}
.btn-lg{padding:14px 28px;font-size:15px}

/* 响应式 */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:40px;text-align:left}
  .hero-visual{height:400px}
  .feature-grid,.security-grid{grid-template-columns:repeat(2,1fr)}
  .usecase-grid{grid-template-columns:repeat(2,1fr)}
  .how-grid{grid-template-columns:1fr}
}
@media (max-width:768px){
  .hero{padding:120px 0 60px}
  .hero-stats{gap:24px 32px}
  .hero-visual{height:320px}
  .ring-3{width:380px;height:380px}
  .feature-grid,.security-grid,.usecase-grid{grid-template-columns:1fr}
  .cta{padding:40px 24px}
  .cta h2{font-size:24px}
}