/* ==========================================================
   赫柏·红蚁 AI 工作台 — 官网首页样式
   品牌色沿用客户端：深空底 #060b1f + 主蓝 #4d8fff
   ========================================================== */

:root{
  --navy-900:#060b1f;
  --navy-800:#0a1230;
  --navy-700:#101a3f;
  --navy-600:#16224d;

  --blue:#4d8fff;
  --blue-2:#2f6fe4;
  --blue-soft:#e8f0ff;
  --cyan:#38d2ff;
  --violet:#8b7bff;

  --ink:#0e1524;
  --ink-2:#3c4761;
  --ink-3:#6b7794;
  --line:#e6ebf3;
  --bg:#ffffff;
  --bg-soft:#f6f8fc;

  --ok:#12b886;
  --warn:#f59f0b;

  --radius:16px;
  --radius-lg:22px;
  --shadow-sm:0 2px 10px rgba(16,26,63,.06);
  --shadow:0 10px 34px rgba(16,26,63,.10);
  --shadow-lg:0 26px 70px rgba(16,26,63,.18);

  --maxw:1220px;
}

*{box-sizing:border-box;margin:0;padding:0;}

html{scroll-behavior:smooth;scroll-padding-top:78px;}

body{
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Helvetica Neue",Arial,sans-serif;
  color:var(--ink);
  background:var(--bg);
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}

a{color:inherit;text-decoration:none;}
ul{list-style:none;}
img{max-width:100%;display:block;}

.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px;}
.container.narrow{max-width:880px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:10px;
  font-size:15px;font-weight:600;letter-spacing:.2px;
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease, box-shadow .18s ease, background .18s ease, border-color .18s ease;
  white-space:nowrap;
}
.btn-lg{height:52px;padding:0 30px;font-size:16px;border-radius:12px;}
.btn.full{width:100%;}

.btn-primary{
  background:linear-gradient(135deg,var(--blue) 0%,var(--blue-2) 100%);
  color:#fff;box-shadow:0 8px 22px rgba(77,143,255,.34);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 32px rgba(77,143,255,.45);}

.btn-ghost{color:var(--ink-2);}
.btn-ghost:hover{background:var(--bg-soft);color:var(--ink);}

/* 导航登录 / 注册按钮 */
.btn-login,.btn-register{height:38px;padding:0 16px;font-size:14px;border-radius:9px;}
.btn-login{
  color:#fff;background:rgba(255,255,255,.08);
  border-color:rgba(255,255,255,.22);
}
.btn-login:hover{background:rgba(255,255,255,.16);border-color:rgba(255,255,255,.4);}
.nav.scrolled .btn-login{color:var(--ink-2);background:var(--bg-soft);border-color:var(--line);}
.nav.scrolled .btn-login:hover{background:#fff;color:var(--ink);}
.btn-register{
  color:#fff;
  background:linear-gradient(135deg,var(--blue) 0%,var(--blue-2) 100%);
  box-shadow:0 6px 18px rgba(77,143,255,.3);
}
.btn-register:hover{transform:translateY(-2px);box-shadow:0 10px 26px rgba(77,143,255,.42);}

.btn-outline{border-color:rgba(255,255,255,.28);color:#fff;background:rgba(255,255,255,.06);}
.btn-outline:hover{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.5);transform:translateY(-2px);}

.btn-outline-light{border-color:rgba(255,255,255,.24);color:#dce6fb;background:transparent;}
.btn-outline-light:hover{background:rgba(255,255,255,.09);color:#fff;border-color:rgba(255,255,255,.45);}

/* ---------- 导航 ---------- */
.nav{
  position:fixed;top:0;left:0;right:0;z-index:100;
  background:rgba(6,11,31,.72);
  backdrop-filter:saturate(180%) blur(16px);
  -webkit-backdrop-filter:saturate(180%) blur(16px);
  border-bottom:1px solid rgba(255,255,255,.07);
  transition:background .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.nav.scrolled{
  background:rgba(255,255,255,.94);
  border-bottom-color:var(--line);
  box-shadow:var(--shadow-sm);
}
.nav-inner{
  max-width:var(--maxw);margin:0 auto;padding:0 24px;
  height:70px;display:flex;align-items:center;gap:34px;
}

.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.brand-mark{
  width:44px;height:44px;border-radius:14px;flex-shrink:0;
  object-fit:contain;background:transparent;
  box-shadow:0 0 24px rgba(77,143,255,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text b{font-size:16px;font-weight:800;color:#fff;letter-spacing:.4px;}
.brand-text i{font-size:11px;font-style:normal;color:rgba(255,255,255,.55);letter-spacing:1.4px;}
.nav.scrolled .brand-text b{color:var(--ink);}
.nav.scrolled .brand-text i{color:var(--ink-3);}

.nav-links{display:flex;align-items:center;gap:28px;margin-left:8px;}
.nav-links a{
  font-size:14.5px;font-weight:500;color:rgba(255,255,255,.76);
  position:relative;padding:6px 0;transition:color .18s ease;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:100%;bottom:0;height:2px;
  background:var(--blue);border-radius:2px;transition:right .22s ease;
}
.nav-links a:hover{color:#fff;}
.nav-links a:hover::after{right:0;}
.nav.scrolled .nav-links a{color:var(--ink-2);}
.nav.scrolled .nav-links a:hover{color:var(--ink);}

.nav-actions{margin-left:auto;display:flex;align-items:center;gap:10px;}
.nav .btn-ghost{color:rgba(255,255,255,.8);}
.nav .btn-ghost:hover{background:rgba(255,255,255,.1);color:#fff;}
.nav.scrolled .btn-ghost{color:var(--ink-2);}
.nav.scrolled .btn-ghost:hover{background:var(--bg-soft);color:var(--ink);}

.nav-toggle{display:none;background:none;border:0;cursor:pointer;padding:8px;margin-left:auto;}
.nav-toggle span{display:block;width:22px;height:2px;background:#fff;border-radius:2px;margin:5px 0;transition:.2s;}
.nav.scrolled .nav-toggle span{background:var(--ink);}

/* ---------- 首屏 ---------- */
.hero{position:relative;background:var(--navy-900);overflow:hidden;padding-top:70px;}
.hero-bg{
  position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(900px 520px at 12% 8%, rgba(77,143,255,.30), transparent 62%),
    radial-gradient(760px 460px at 88% 22%, rgba(139,123,255,.24), transparent 60%),
    radial-gradient(620px 420px at 60% 96%, rgba(56,210,255,.14), transparent 64%);
}
.hero-grid{
  position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:
    linear-gradient(rgba(255,255,255,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.045) 1px, transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(ellipse 90% 65% at 50% 32%, #000 40%, transparent 100%);
  -webkit-mask-image:radial-gradient(ellipse 90% 65% at 50% 32%, #000 40%, transparent 100%);
}
.hero-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.02fr .98fr;gap:56px;align-items:center;
  padding:86px 24px 72px;
}

.hero-badge{
  display:inline-flex;align-items:center;gap:9px;
  padding:7px 16px 7px 12px;border-radius:999px;
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.15);
  color:rgba(255,255,255,.82);font-size:13px;margin-bottom:26px;
  backdrop-filter:blur(8px);
}
.hero-badge b{color:var(--cyan);font-weight:700;}
.hero-badge .dot{
  width:7px;height:7px;border-radius:50%;background:var(--ok);
  box-shadow:0 0 0 0 rgba(18,184,134,.6);animation:pulse 2s infinite;
}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(18,184,134,.55);}
  70%{box-shadow:0 0 0 9px rgba(18,184,134,0);}
  100%{box-shadow:0 0 0 0 rgba(18,184,134,0);}
}

.hero-title{
  font-size:56px;line-height:1.18;font-weight:800;color:#fff;
  letter-spacing:-.5px;margin-bottom:22px;
}
.hero-title .grad{
  background:linear-gradient(100deg,var(--cyan) 0%,var(--blue) 42%,var(--violet) 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{
  font-size:17px;line-height:1.85;color:rgba(255,255,255,.7);
  max-width:560px;margin-bottom:34px;
}
.hero-sub b{color:#fff;font-weight:600;}

.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:42px;}

.hero-trust{display:flex;align-items:center;gap:22px;flex-wrap:wrap;}
.trust-item{display:flex;flex-direction:column;}
.trust-item b{font-size:26px;font-weight:800;color:#fff;line-height:1.2;}
.trust-item span{font-size:12.5px;color:rgba(255,255,255,.52);}
.trust-divider{width:1px;height:30px;background:rgba(255,255,255,.14);}

/* 首屏右侧 mock */
.hero-visual{position:relative;}
.mock-window{
  background:linear-gradient(160deg,rgba(22,34,77,.96),rgba(10,18,48,.98));
  border:1px solid rgba(255,255,255,.13);
  border-radius:var(--radius-lg);overflow:hidden;
  box-shadow:var(--shadow-lg);
  transform:perspective(1400px) rotateY(-8deg) rotateX(3deg);
  transition:transform .5s ease;
}
.mock-window:hover{transform:perspective(1400px) rotateY(-3deg) rotateX(1deg);}
.mock-bar{
  height:40px;display:flex;align-items:center;gap:7px;padding:0 15px;
  background:rgba(255,255,255,.05);border-bottom:1px solid rgba(255,255,255,.09);
}
.mock-bar .d{width:11px;height:11px;border-radius:50%;display:block;}
.mock-bar .r{background:#ff5f57;}
.mock-bar .y{background:#febc2e;}
.mock-bar .g{background:#28c840;}
.mock-title{
  margin-left:12px;font-size:12px;color:rgba(255,255,255,.5);letter-spacing:.3px;
}
.mock-body{display:grid;grid-template-columns:132px 1fr;min-height:330px;}
.mock-side{
  padding:16px 12px;border-right:1px solid rgba(255,255,255,.08);
  display:flex;flex-direction:column;gap:7px;
}
.ms-item{
  font-size:12.5px;color:rgba(255,255,255,.55);
  padding:8px 11px;border-radius:8px;transition:.2s;
}
.ms-item.active{background:rgba(77,143,255,.2);color:#fff;font-weight:600;}
.ms-status{
  margin-top:auto;font-size:11.5px;color:var(--ok);
  display:flex;align-items:center;gap:6px;padding:8px 11px;
  background:rgba(18,184,134,.1);border-radius:8px;
}
.ms-status .pulse{
  width:6px;height:6px;border-radius:50%;background:var(--ok);animation:pulse 2s infinite;
}

.mock-main{padding:18px;display:flex;flex-direction:column;gap:16px;}
.mock-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:9px;}
.mstat{
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.08);
  border-radius:10px;padding:10px 8px;text-align:center;
}
.mstat b{display:block;font-size:19px;font-weight:800;color:#fff;line-height:1.3;}
.mstat span{font-size:10.5px;color:rgba(255,255,255,.48);}
.mstat.ok b{color:var(--ok);}

.mock-pipeline{display:flex;align-items:center;gap:5px;}
.pl-step{
  flex:1;display:flex;flex-direction:column;align-items:center;gap:5px;
  font-size:10.5px;color:rgba(255,255,255,.45);
}
.pl-step i{
  width:24px;height:24px;border-radius:50%;font-style:normal;font-size:11px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.09);color:rgba(255,255,255,.5);
  border:1px solid rgba(255,255,255,.14);
}
.pl-step.done i{background:var(--ok);color:#fff;border-color:var(--ok);}
.pl-step.done{color:rgba(255,255,255,.78);}
.pl-step.doing i{
  background:var(--blue);color:#fff;border-color:var(--blue);
  animation:pulse 1.6s infinite;
}
.pl-step.doing{color:#fff;}
.pl-line{width:22px;height:2px;background:rgba(255,255,255,.14);border-radius:2px;margin-bottom:16px;}

.mock-rows{display:flex;flex-direction:column;gap:8px;}
.mrow{
  display:flex;align-items:center;gap:10px;
  background:rgba(255,255,255,.04);border-radius:9px;padding:9px 11px;
}
.mrow .thumb{
  width:26px;height:26px;border-radius:6px;flex-shrink:0;
  background:linear-gradient(135deg,rgba(77,143,255,.5),rgba(139,123,255,.4));
}
.mrow .bar{height:7px;border-radius:4px;background:rgba(255,255,255,.16);}
.mrow .w70{width:70%;} .mrow .w55{width:55%;}
.mrow .w80{width:80%;} .mrow .w45{width:45%;}
.mrow .tag{
  margin-left:auto;font-size:10px;font-style:normal;
  padding:3px 9px;border-radius:20px;white-space:nowrap;
}
.tag.ok{background:rgba(18,184,134,.18);color:#4ade9f;}
.tag.run{background:rgba(77,143,255,.2);color:#8ab6ff;}
.tag.wait{background:rgba(255,255,255,.1);color:rgba(255,255,255,.5);}

.float-card{
  position:absolute;padding:9px 15px;border-radius:11px;
  background:rgba(255,255,255,.95);color:var(--ink);
  font-size:12.5px;font-weight:600;box-shadow:var(--shadow);
  animation:float 4.5s ease-in-out infinite;
}
.fc1{top:6%;left:-6%;animation-delay:0s;}
.fc2{bottom:22%;left:-9%;animation-delay:1.4s;}
.fc3{top:44%;right:-6%;animation-delay:2.6s;}
@keyframes float{
  0%,100%{transform:translateY(0);}
  50%{transform:translateY(-11px);}
}

.hero-logos{
  position:relative;z-index:2;
  border-top:1px solid rgba(255,255,255,.08);
  padding:24px 0 30px;
}
.hero-logos .container{display:flex;align-items:center;gap:26px;flex-wrap:wrap;}
.logos-label{font-size:12.5px;color:rgba(255,255,255,.42);white-space:nowrap;}
.logos{display:flex;gap:11px;flex-wrap:wrap;}
.logo-chip{
  padding:6px 15px;border-radius:8px;font-size:13px;font-weight:600;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.11);
  color:rgba(255,255,255,.72);transition:.2s;
}
.logo-chip:hover{background:rgba(255,255,255,.12);color:#fff;}

/* ---------- 通用区块 ---------- */
.section{padding:96px 0;}
.section.soft{background:var(--bg-soft);}
.section.dark{background:var(--navy-900);position:relative;overflow:hidden;}
.section.dark::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(760px 440px at 15% 0%, rgba(77,143,255,.18), transparent 62%),
    radial-gradient(700px 420px at 85% 100%, rgba(139,123,255,.15), transparent 60%);
}
.section.dark .container{position:relative;z-index:2;}

.sec-head{text-align:center;max-width:760px;margin:0 auto 56px;}
.sec-tag{
  display:inline-block;padding:5px 15px;border-radius:999px;
  background:var(--blue-soft);color:var(--blue-2);
  font-size:12.5px;font-weight:700;letter-spacing:1.2px;margin-bottom:16px;
}
.sec-head h2{font-size:38px;font-weight:800;line-height:1.32;letter-spacing:-.4px;margin-bottom:14px;}
.sec-head p{font-size:16px;color:var(--ink-3);}
.sec-head.light h2{color:#fff;}
.sec-head.light p{color:rgba(255,255,255,.6);}
.sec-head.light .sec-tag{background:rgba(77,143,255,.18);color:#8ab6ff;}

/* ---------- 痛点 ---------- */
.pain-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.pain-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:30px 26px;transition:.25s;position:relative;overflow:hidden;
}
.pain-card::before{
  content:"";position:absolute;top:0;left:0;width:100%;height:3px;
  background:linear-gradient(90deg,var(--blue),var(--violet));
  transform:scaleX(0);transform-origin:left;transition:transform .3s ease;
}
.pain-card:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:transparent;}
.pain-card:hover::before{transform:scaleX(1);}
.pain-ico{
  width:48px;height:48px;border-radius:13px;background:var(--bg-soft);
  display:flex;align-items:center;justify-content:center;font-size:23px;margin-bottom:17px;
}
.pain-card h3{font-size:18px;font-weight:700;margin-bottom:10px;}
.pain-card p{font-size:14.5px;color:var(--ink-3);line-height:1.8;}

/* ---------- 核心模块 ---------- */
.mod-layout{display:grid;grid-template-columns:340px 1fr;gap:34px;align-items:start;}
.mod-tabs{display:flex;flex-direction:column;gap:10px;}
.mod-tab{
  display:flex;align-items:center;gap:15px;text-align:left;cursor:pointer;
  padding:17px 19px;border-radius:14px;
  background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.09);
  transition:.24s;font-family:inherit;
}
.mod-tab:hover{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.18);}
.mod-tab.active{
  background:linear-gradient(120deg,rgba(77,143,255,.22),rgba(139,123,255,.16));
  border-color:rgba(77,143,255,.5);
  box-shadow:0 8px 26px rgba(77,143,255,.2);
}
.mt-idx{
  font-size:13px;font-weight:800;color:rgba(255,255,255,.32);
  letter-spacing:.5px;flex-shrink:0;
}
.mod-tab.active .mt-idx{color:var(--cyan);}
.mt-txt{display:flex;flex-direction:column;line-height:1.45;}
.mt-txt b{font-size:15.5px;font-weight:700;color:rgba(255,255,255,.85);}
.mt-txt i{font-size:12.5px;font-style:normal;color:rgba(255,255,255,.45);}
.mod-tab.active .mt-txt b{color:#fff;}
.mod-tab.active .mt-txt i{color:rgba(255,255,255,.65);}

.mod-panels{position:relative;}
.mod-panel{
  display:none;
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.11);
  border-radius:var(--radius-lg);padding:36px 38px;
  backdrop-filter:blur(10px);
}
.mod-panel.active{display:block;animation:fadeUp .4s ease;}
@keyframes fadeUp{
  from{opacity:0;transform:translateY(14px);}
  to{opacity:1;transform:translateY(0);}
}
.mod-panel h3{font-size:24px;font-weight:800;color:#fff;margin-bottom:14px;}
.mp-desc{font-size:15.5px;color:rgba(255,255,255,.68);line-height:1.9;margin-bottom:22px;}
.mp-list{display:flex;flex-direction:column;gap:11px;margin-bottom:26px;}
.mp-list li{
  position:relative;padding-left:26px;font-size:14.5px;
  color:rgba(255,255,255,.6);line-height:1.75;
}
.mp-list li::before{
  content:"";position:absolute;left:0;top:9px;width:15px;height:15px;border-radius:50%;
  background:rgba(77,143,255,.2);
  box-shadow:inset 0 0 0 1px rgba(77,143,255,.5);
}
.mp-list li::after{
  content:"";position:absolute;left:5px;top:13px;width:5px;height:5px;
  border-radius:50%;background:var(--cyan);
}
.mp-list b{color:#fff;font-weight:600;}

.mp-metrics{display:flex;gap:34px;padding-top:22px;border-top:1px solid rgba(255,255,255,.1);}
.mp-metrics div{display:flex;flex-direction:column;}
.mp-metrics b{
  font-size:26px;font-weight:800;line-height:1.25;
  background:linear-gradient(100deg,var(--cyan),var(--blue));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.mp-metrics span{font-size:12.5px;color:rgba(255,255,255,.45);}

.roles{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:22px;}
.role{
  padding:7px 14px;border-radius:8px;font-size:12.5px;font-weight:600;
  background:rgba(77,143,255,.14);border:1px solid rgba(77,143,255,.3);
  color:#a9c8ff;
}

/* ---------- 功能矩阵 ---------- */
.feat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.feat{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 22px;transition:.25s;
}
.feat:hover{transform:translateY(-5px);box-shadow:var(--shadow);border-color:rgba(77,143,255,.35);}
.feat .fi{
  width:44px;height:44px;border-radius:12px;
  background:linear-gradient(135deg,var(--blue-soft),#f0e9ff);
  display:flex;align-items:center;justify-content:center;font-size:21px;margin-bottom:15px;
}
.feat h4{font-size:16px;font-weight:700;margin-bottom:8px;}
.feat p{font-size:13.5px;color:var(--ink-3);line-height:1.75;}

/* ---------- 工作流程 ---------- */
.flow{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;position:relative;}
.flow::before{
  content:"";position:absolute;top:26px;left:8%;right:8%;height:2px;
  background:linear-gradient(90deg,var(--blue),var(--violet));opacity:.24;
}
.flow-step{position:relative;text-align:center;}
.fs-num{
  width:54px;height:54px;border-radius:50%;margin:0 auto 18px;
  background:linear-gradient(135deg,var(--blue),var(--blue-2));
  color:#fff;font-size:21px;font-weight:800;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 8px 22px rgba(77,143,255,.35);
  border:4px solid var(--bg-soft);position:relative;z-index:2;
}
.fs-body h4{font-size:16px;font-weight:700;margin-bottom:9px;}
.fs-body p{font-size:13.5px;color:var(--ink-3);line-height:1.8;}

.flow-note{
  margin-top:44px;padding:20px 26px;border-radius:13px;
  background:#fff;border:1px solid var(--line);border-left:4px solid var(--blue);
  font-size:14.5px;color:var(--ink-2);box-shadow:var(--shadow-sm);
}
.flow-note b{color:var(--ink);font-weight:700;}

/* ---------- 评价 ---------- */
.voice-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.voice{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:28px 26px;display:flex;flex-direction:column;gap:15px;transition:.25s;
}
.voice:hover{transform:translateY(-5px);box-shadow:var(--shadow);}
.stars{color:#f5a623;font-size:15px;letter-spacing:2px;}
.voice p{font-size:14.5px;color:var(--ink-2);line-height:1.9;flex:1;}
.who{display:flex;align-items:center;gap:11px;padding-top:15px;border-top:1px solid var(--line);}
.who .av{
  width:38px;height:38px;border-radius:50%;flex-shrink:0;
  background:linear-gradient(135deg,var(--blue),var(--violet));
  color:#fff;font-size:15px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
.who b{font-size:14.5px;font-weight:700;}
.who i{font-size:12.5px;font-style:normal;color:var(--ink-3);margin-left:auto;}

/* ---------- 价格 ---------- */
.price-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;align-items:stretch;}
.price-card{
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);
  border-radius:var(--radius-lg);padding:28px 22px;
  display:flex;flex-direction:column;gap:13px;transition:.28s;position:relative;
  backdrop-filter:blur(10px);
}
.price-card:hover{transform:translateY(-6px);border-color:rgba(255,255,255,.26);}
.price-card.featured{
  background:linear-gradient(160deg,rgba(77,143,255,.2),rgba(139,123,255,.12));
  border-color:rgba(77,143,255,.55);
  box-shadow:0 20px 55px rgba(77,143,255,.26);
  transform:scale(1.03);
}
.price-card.featured:hover{transform:scale(1.03) translateY(-6px);}
.pc-badge{
  position:absolute;top:-12px;left:50%;transform:translateX(-50%);
  padding:5px 17px;border-radius:999px;font-size:12px;font-weight:700;
  background:linear-gradient(135deg,var(--blue),var(--violet));color:#fff;
  box-shadow:0 6px 18px rgba(77,143,255,.45);white-space:nowrap;
}
.pc-name{font-size:16px;font-weight:700;color:rgba(255,255,255,.72);letter-spacing:.6px;display:flex;align-items:center;gap:8px;}
.pc-tag{
  font-size:10px;font-weight:800;color:var(--blue);
  border:1px solid rgba(77,143,255,.45);border-radius:999px;
  padding:2px 8px;letter-spacing:.4px;
}
.pc-price{display:flex;align-items:baseline;gap:7px;}
.pc-price b{font-size:36px;font-weight:800;color:#fff;line-height:1.1;}
.pc-price span{font-size:14px;color:rgba(255,255,255,.5);}
.pc-price-year{font-size:12.5px;color:rgba(255,255,255,.45);margin-top:-9px;}
.pc-desc{font-size:13px;color:rgba(255,255,255,.55);padding-bottom:12px;border-bottom:1px solid rgba(255,255,255,.12);}
.pc-stats{
  display:grid;grid-template-columns:repeat(2,1fr);gap:10px;
  padding-bottom:12px;border-bottom:1px solid rgba(255,255,255,.12);
}
.pc-stats div{display:flex;flex-direction:column;gap:3px;}
.pc-stats b{font-size:15px;font-weight:800;color:#fff;}
.pc-stats span{font-size:11.5px;color:rgba(255,255,255,.45);}
.pc-list{display:flex;flex-direction:column;gap:11px;flex:1;}
.pc-list li{
  position:relative;padding-left:22px;font-size:13px;
  color:rgba(255,255,255,.68);line-height:1.6;
}
.pc-list li::before{
  content:"✓";position:absolute;left:0;top:0;
  color:var(--cyan);font-weight:800;font-size:12px;
}
.pc-list b{color:#fff;font-weight:700;}

.price-note{
  text-align:center;margin-top:34px;font-size:13.5px;
  color:rgba(255,255,255,.42);
}

/* ---------- CTA ---------- */
.cta{
  background:linear-gradient(120deg,var(--navy-800) 0%,var(--navy-600) 55%,#1e2a63 100%);
  position:relative;overflow:hidden;padding:82px 0;
}
.cta::before{
  content:"";position:absolute;inset:0;
  background:
    radial-gradient(600px 340px at 20% 20%, rgba(77,143,255,.28), transparent 60%),
    radial-gradient(520px 320px at 80% 80%, rgba(139,123,255,.22), transparent 60%);
}
.cta-inner{position:relative;z-index:2;text-align:center;}
.cta h2{font-size:38px;font-weight:800;color:#fff;margin-bottom:14px;letter-spacing:-.4px;}
.cta p{font-size:16.5px;color:rgba(255,255,255,.66);margin-bottom:32px;}
.cta-btns{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-bottom:26px;}
.cta-meta{display:flex;gap:26px;justify-content:center;flex-wrap:wrap;font-size:13.5px;color:rgba(255,255,255,.5);}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{border:1px solid var(--line);border-radius:13px;overflow:hidden;background:#fff;transition:.2s;}
.faq-item:hover{border-color:rgba(77,143,255,.35);}
.faq-item.open{border-color:var(--blue);box-shadow:var(--shadow-sm);}
.faq-q{
  width:100%;text-align:left;cursor:pointer;font-family:inherit;
  padding:19px 24px;font-size:16px;font-weight:600;color:var(--ink);
  background:none;border:0;display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq-q i{
  width:20px;height:20px;flex-shrink:0;position:relative;transition:transform .25s ease;
}
.faq-q i::before,.faq-q i::after{
  content:"";position:absolute;background:var(--blue);border-radius:2px;
}
.faq-q i::before{left:0;top:9px;width:20px;height:2px;}
.faq-q i::after{left:9px;top:0;width:2px;height:20px;transition:opacity .25s ease;}
.faq-item.open .faq-q i{transform:rotate(180deg);}
.faq-item.open .faq-q i::after{opacity:0;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-a p{padding:0 24px 20px;font-size:14.5px;color:var(--ink-3);line-height:1.9;}

/* ---------- 页脚 ---------- */
.footer{background:var(--navy-900);color:rgba(255,255,255,.6);padding:64px 0 26px;}
.foot-top{display:grid;grid-template-columns:1.15fr 2fr;gap:56px;padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.09);}
.foot-slogan{font-size:14px;line-height:1.9;color:rgba(255,255,255,.5);margin:18px 0 16px;}
.foot-tags{display:flex;gap:8px;flex-wrap:wrap;}
.foot-tags span{
  padding:4px 12px;border-radius:7px;font-size:12px;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);
  color:rgba(255,255,255,.6);
}
.foot-cols{display:grid;grid-template-columns:repeat(4,1fr);gap:28px;}
.foot-col h5{font-size:14.5px;font-weight:700;color:#fff;margin-bottom:16px;}
.foot-col a{display:block;font-size:13.5px;color:rgba(255,255,255,.52);padding:5px 0;transition:.18s;}
.foot-col a:hover{color:var(--blue);}
.fc-line{font-size:13.5px;color:rgba(255,255,255,.52);padding:5px 0;}
.qr{margin-top:12px;}
.qr-box{
  width:150px;height:150px;border-radius:16px;
  background:#fff;border:1px solid rgba(255,255,255,.18);
  display:flex;align-items:center;justify-content:center;
  padding:10px;margin-bottom:9px;
  box-shadow:0 10px 28px rgba(0,0,0,.28);
}
.qr-box img{width:100%;height:100%;object-fit:contain;border-radius:8px;}
.qr span{font-size:12.5px;color:rgba(255,255,255,.5);}

.foot-bottom{
  padding-top:24px;display:flex;align-items:center;justify-content:space-between;
  flex-wrap:wrap;gap:14px;font-size:13px;color:rgba(255,255,255,.38);
}
.fb-links{display:flex;gap:20px;}
.fb-links a{transition:.18s;}
.fb-links a:hover{color:var(--blue);}

/* ---------- 回到顶部 ---------- */
.to-top{
  position:fixed;right:26px;bottom:26px;z-index:90;
  width:44px;height:44px;border-radius:12px;
  background:linear-gradient(135deg,var(--blue),var(--blue-2));color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:19px;
  box-shadow:0 10px 26px rgba(77,143,255,.4);
  opacity:0;visibility:hidden;transform:translateY(12px);transition:.25s;
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{transform:translateY(-3px);}

/* ---------- 滚动进场动画 ---------- */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .6s ease,transform .6s ease;}
.reveal.in{opacity:1;transform:translateY(0);}

/* ---------- 响应式 ---------- */
@media (max-width:1100px){
  .hero-inner{grid-template-columns:1fr;gap:48px;}
  .hero-title{font-size:46px;}
  .hero-visual{max-width:620px;}
  .mock-window{transform:none;}
  .float-card{display:none;}
  .mod-layout{grid-template-columns:1fr;}
  .mod-tabs{flex-direction:row;overflow-x:auto;padding-bottom:6px;}
  .mod-tab{min-width:230px;}
  .feat-grid{grid-template-columns:repeat(3,1fr);}
  .flow{grid-template-columns:repeat(3,1fr);gap:30px;}
  .flow::before{display:none;}
  .foot-top{grid-template-columns:1fr;gap:38px;}
  .price-grid{grid-template-columns:repeat(2,1fr);gap:22px;}
  .price-card.featured{transform:scale(1.02);}
}

@media (max-width:900px){
  .nav-links{display:none;}
  .nav-actions .btn-ghost{display:none;}
  .nav-toggle{display:block;}
  .nav-links.open{
    display:flex;flex-direction:column;align-items:flex-start;gap:0;
    position:absolute;top:70px;left:0;right:0;
    background:rgba(255,255,255,.98);padding:12px 24px;
    box-shadow:var(--shadow);border-bottom:1px solid var(--line);
  }
  .nav-links.open a{color:var(--ink-2);width:100%;padding:12px 0;border-bottom:1px solid var(--line);}
  .pain-grid,.voice-grid{grid-template-columns:repeat(2,1fr);}
  .price-grid{grid-template-columns:1fr;max-width:440px;margin:0 auto;}
  .price-card.featured{transform:none;}
  .price-card.featured:hover{transform:translateY(-6px);}
  .foot-cols{grid-template-columns:repeat(2,1fr);}
  .sec-head h2,.cta h2{font-size:31px;}
}

@media (max-width:640px){
  .section{padding:66px 0;}
  .hero-inner{padding:56px 20px 48px;}
  .hero-title{font-size:35px;}
  .hero-sub{font-size:15.5px;}
  .hero-trust{gap:16px;}
  .trust-divider{display:none;}
  .pain-grid,.voice-grid,.feat-grid,.flow{grid-template-columns:1fr;}
  .mod-panel{padding:26px 22px;}
  .mp-metrics{gap:20px;flex-wrap:wrap;}
  .foot-cols{grid-template-columns:1fr;}
  .sec-head h2,.cta h2{font-size:26px;}
  .btn-lg{height:48px;padding:0 22px;font-size:15px;}
  .cta-btns .btn{width:100%;}
  .btn-login,.btn-register{height:32px;padding:0 12px;font-size:13px;}
  .nav-actions .btn-primary{padding:0 14px;font-size:13.5px;height:36px;}
}