/* ============================================================
   炫引擎 XuanEngine · 官网共享样式
   ============================================================ */
:root{
  --bg:#04060d; --bg2:#0a0f1e;
  --panel:rgba(16,23,44,.55); --panel2:rgba(20,28,52,.72);
  --border:rgba(129,140,248,.16); --border-strong:rgba(129,140,248,.32);
  --indigo:#6366f1; --indigo-deep:#4f46e5; --indigo-soft:#a5b4fc;
  --accent:#ff6b2c; --accent-deep:#e0551a;
  --text:#e9edf8; --muted:#9aa7c2; --dim:#6b7692;
  --success:#10b981; --amber:#f59e0b;
  --radius:16px;
  --shadow:0 8px 40px rgba(2,6,18,.5);
  --glow:0 0 40px rgba(99,102,241,.28);
  --container:1200px;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:-apple-system,"SF Pro Text","PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei","Segoe UI",Roboto,sans-serif;
  background:var(--bg); color:var(--text);
  line-height:1.7; overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
::selection{background:rgba(99,102,241,.45);color:#fff}
a{color:inherit;text-decoration:none}
ul{list-style:none}
img,svg{vertical-align:middle}
.container{max-width:var(--container);margin:0 auto;padding:0 24px}
section{padding:110px 0;position:relative}
.skip-link{position:absolute;left:-999px;top:8px;z-index:200;background:var(--indigo-deep);color:#fff;padding:10px 18px;border-radius:8px}
.skip-link:focus{left:12px}

/* ===== 背景光效 ===== */
.bg-aura{position:fixed;inset:0;z-index:-2;pointer-events:none;overflow:hidden}
.bg-aura::before{content:"";position:absolute;width:900px;height:900px;top:-320px;left:50%;transform:translateX(-50%);
  background:radial-gradient(circle,rgba(79,70,229,.30),transparent 62%);filter:blur(60px)}
.bg-grid{position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.5;
  background-image:linear-gradient(rgba(129,140,248,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(129,140,248,.05) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(ellipse 90% 60% at 50% 0%,#000 30%,transparent 78%);
  -webkit-mask-image:radial-gradient(ellipse 90% 60% at 50% 0%,#000 30%,transparent 78%)}
#particles{position:absolute;top:0;left:0;width:100%;height:100%;z-index:-1;pointer-events:none}

/* ===== 通用组件 ===== */
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:.14em;
  color:var(--indigo-soft);text-transform:uppercase;padding:7px 16px;border:1px solid var(--border);border-radius:999px;
  background:rgba(99,102,241,.08)}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 10px var(--accent)}
.sec-head{text-align:center;max-width:780px;margin:0 auto 64px}
.sec-head h2{font-size:clamp(28px,3.4vw,42px);line-height:1.32;font-weight:800;letter-spacing:-.01em;margin:18px 0 14px}
.sec-head p{color:var(--muted);font-size:17px}
.grad-text{background:linear-gradient(115deg,#fff 20%,var(--indigo-soft) 75%,#c4b5fd);-webkit-background-clip:text;background-clip:text;color:transparent}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:700;font-size:16px;
  padding:15px 32px;border-radius:12px;cursor:pointer;border:none;transition:.25s;white-space:nowrap;font-family:inherit}
.btn-primary{background:linear-gradient(135deg,var(--accent) 0%,#ff8a50 100%);color:#fff;
  box-shadow:0 6px 26px rgba(255,107,44,.38),inset 0 1px 0 rgba(255,255,255,.25)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 36px rgba(255,107,44,.5)}
.btn-ghost{background:rgba(99,102,241,.10);color:var(--text);border:1px solid var(--border-strong)}
.btn-ghost:hover{background:rgba(99,102,241,.2);border-color:rgba(129,140,248,.55);transform:translateY(-2px)}
.chip{display:inline-flex;align-items:center;gap:6px;font-size:13px;padding:6px 14px;border-radius:999px;
  border:1px solid var(--border);background:rgba(16,23,44,.6);color:var(--muted)}
.dot{width:6px;height:6px;border-radius:50%;background:var(--indigo);flex:none}
.check-ic{width:15px;height:15px;color:var(--success);flex:none;margin-top:4px}
.ok-ic{width:16px;height:16px;color:var(--success)}

/* ===== 导航 ===== */
header.nav{position:fixed;top:0;left:0;right:0;z-index:100;transition:.3s;padding:18px 0}
header.nav.scrolled{padding:10px 0;background:rgba(4,6,13,.82);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  border-bottom:1px solid rgba(129,140,248,.12)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px}
.logo{display:flex;align-items:center;gap:11px;font-weight:800;font-size:19px;letter-spacing:-.01em;white-space:nowrap}
.logo svg{width:34px;height:34px;flex:none;filter:drop-shadow(0 0 12px rgba(99,102,241,.55))}
.logo .en{color:var(--indigo-soft);font-weight:600;font-size:14px;margin-left:2px}
.nav-links{display:flex;gap:26px;font-size:15px;color:var(--muted);font-weight:500}
.nav-links a{transition:.2s;position:relative;padding:4px 0;white-space:nowrap}
.nav-links a::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--indigo),var(--accent));transition:.3s}
.nav-links a:hover,.nav-links a.current{color:#fff}
.nav-links a:hover::after,.nav-links a.current::after{width:100%}
.nav-cta{display:flex;align-items:center;gap:14px}
.nav-cta .btn{padding:10px 22px;font-size:14.5px}
.hamburger{display:none;background:none;border:1px solid var(--border);border-radius:10px;width:42px;height:42px;
  cursor:pointer;flex-direction:column;align-items:center;justify-content:center;gap:5px}
.hamburger span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;transition:.3s}
.mobile-menu{display:none;position:fixed;top:64px;left:16px;right:16px;z-index:99;background:rgba(10,15,30,.97);
  border:1px solid var(--border);border-radius:16px;padding:18px;backdrop-filter:blur(20px)}
.mobile-menu.open{display:block}
.mobile-menu a{display:block;padding:13px 14px;border-radius:10px;color:var(--muted);font-weight:600}
.mobile-menu a:hover{background:rgba(99,102,241,.12);color:#fff}

/* ===== 页面头（子页面通用） ===== */
.page-hero{padding:170px 0 74px;position:relative;overflow:hidden;text-align:center}
.page-hero::before{content:"";position:absolute;top:-180px;left:50%;transform:translateX(-50%);
  width:760px;height:420px;background:radial-gradient(ellipse,rgba(99,102,241,.26),transparent 65%);pointer-events:none}
.page-hero h1{font-size:clamp(32px,4vw,50px);font-weight:800;letter-spacing:-.015em;margin:20px 0 16px;line-height:1.25}
.page-hero .p-sub{color:var(--muted);font-size:17.5px;max-width:680px;margin:0 auto}
.breadcrumb{display:flex;justify-content:center;align-items:center;gap:10px;font-size:13.5px;color:var(--dim);margin-top:22px}
.breadcrumb a{color:var(--muted);transition:.2s}
.breadcrumb a:hover{color:#fff}
.breadcrumb .sep{opacity:.5}
.breadcrumb .here{color:var(--indigo-soft)}

/* ===== Hero（首页） ===== */
.hero{padding:186px 0 96px;position:relative;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero h1{font-size:clamp(36px,4.6vw,58px);line-height:1.22;font-weight:800;letter-spacing:-.015em;margin:22px 0 20px}
.hero .sub{color:var(--muted);font-size:17.5px;max-width:560px;margin-bottom:36px}
.hero .sub strong{color:var(--text);font-weight:600}
.hero-ctas{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:30px}
.hero-trust{display:flex;gap:12px;flex-wrap:wrap}
.hero-trust .chip{color:#c0c9de}
.hero-trust .chip svg{width:15px;height:15px;color:var(--success)}

/* Hero 仪表盘 mockup */
.mockwrap{position:relative;perspective:1400px}
.mock{background:linear-gradient(160deg,rgba(23,31,58,.92),rgba(12,17,34,.94));border:1px solid var(--border-strong);
  border-radius:18px;box-shadow:var(--shadow),var(--glow);overflow:hidden;transform:rotateY(-7deg) rotateX(3deg);
  animation:floaty 7s ease-in-out infinite}
@keyframes floaty{0%,100%{transform:rotateY(-7deg) rotateX(3deg) translateY(0)}50%{transform:rotateY(-7deg) rotateX(3deg) translateY(-12px)}}
.mock-bar{display:flex;align-items:center;gap:8px;padding:13px 18px;border-bottom:1px solid var(--border);background:rgba(8,11,22,.6)}
.mock-bar i{width:11px;height:11px;border-radius:50%}
.mock-bar i:nth-child(1){background:#ff5f57}.mock-bar i:nth-child(2){background:#febc2e}.mock-bar i:nth-child(3){background:#28c840}
.mock-bar b{margin-left:10px;font-size:12.5px;color:var(--dim);font-weight:600;letter-spacing:.06em}
.mock-body{display:grid;grid-template-columns:52px 1fr;min-height:378px}
.mock-side{border-right:1px solid var(--border);display:flex;flex-direction:column;align-items:center;gap:14px;padding:16px 0}
.mock-side i{width:26px;height:26px;border-radius:8px;background:rgba(99,102,241,.16);display:block}
.mock-side i.on{background:linear-gradient(135deg,var(--indigo-deep),#7c3aed);box-shadow:0 0 14px rgba(99,102,241,.6)}
.mock-main{padding:18px;display:flex;flex-direction:column;gap:13px}
.pos-card{display:flex;align-items:center;gap:10px;background:rgba(99,102,241,.10);border:1px solid rgba(129,140,248,.28);
  border-radius:11px;padding:10px 14px;font-size:13px}
.pos-card b{color:var(--indigo-soft)}
.pos-card span{color:var(--muted)}
.task{display:flex;align-items:center;gap:12px;background:rgba(14,20,40,.66);border:1px solid var(--border);
  border-radius:11px;padding:11px 14px;font-size:13px;animation:taskIn .6s ease both}
.task:nth-child(3){animation-delay:.15s}.task:nth-child(4){animation-delay:.3s}.task:nth-child(5){animation-delay:.45s}
@keyframes taskIn{from{opacity:0;transform:translateX(-14px)}to{opacity:1;transform:none}}
.task .t-ico{width:30px;height:30px;border-radius:8px;flex:none;display:flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:800;background:rgba(99,102,241,.2);color:var(--indigo-soft)}
.task .t-main{flex:1;min-width:0}
.task .t-main b{display:block;font-size:13px;font-weight:600;color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.task .t-main span{font-size:11.5px;color:var(--dim)}
.pill{font-size:11px;font-weight:700;padding:4px 10px;border-radius:999px;flex:none}
.pill.ok{background:rgba(16,185,129,.14);color:#34d399;border:1px solid rgba(16,185,129,.3)}
.pill.pack{background:rgba(255,107,44,.13);color:#ff8a50;border:1px solid rgba(255,107,44,.32)}
.pill.rev{background:rgba(245,158,11,.13);color:#fbbf24;border:1px solid rgba(245,158,11,.3)}
.mock-chart{display:flex;align-items:flex-end;gap:7px;height:58px;padding:6px 4px 0}
.mock-chart i{flex:1;border-radius:4px 4px 2px 2px;background:linear-gradient(180deg,var(--indigo),rgba(99,102,241,.25));
  animation:grow 1.4s cubic-bezier(.2,.8,.3,1) both}
.mock-chart i:nth-child(2){animation-delay:.1s}.mock-chart i:nth-child(3){animation-delay:.2s}
.mock-chart i:nth-child(4){animation-delay:.3s}.mock-chart i:nth-child(5){animation-delay:.4s;height:86%!important}
.mock-chart i:nth-child(6){animation-delay:.5s;height:64%!important;background:linear-gradient(180deg,#ff8a50,rgba(255,107,44,.22))}
.mock-chart i:nth-child(7){animation-delay:.6s;height:52%!important;background:linear-gradient(180deg,#ff8a50,rgba(255,107,44,.22))}
@keyframes grow{from{height:8%}}
.orbit{position:absolute;z-index:3;font-size:12.5px;font-weight:600;padding:8px 14px;border-radius:999px;
  background:rgba(13,18,36,.9);border:1px solid var(--border-strong);backdrop-filter:blur(10px);
  box-shadow:0 8px 24px rgba(2,6,18,.55);white-space:nowrap;animation:orbit 6s ease-in-out infinite}
.orbit small{display:block;font-weight:500;font-size:10.5px;margin-top:1px}
.orbit.o1{top:-22px;left:-14%;color:#c7d2fe;animation-delay:0s}
.orbit.o2{top:32%;right:-15%;color:#86efac;animation-delay:1.4s}
.orbit.o3{bottom:-18px;left:-8%;color:#fdba74;animation-delay:2.6s}
.orbit.o4{top:-40px;right:8%;color:#fcd34d;animation-delay:3.4s}
@keyframes orbit{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}

/* ===== 平台跑马灯 ===== */
.marquee-sec{padding:66px 0 88px}
.marquee-sec h2{text-align:center;font-size:clamp(21px,2.4vw,27px);font-weight:700;margin-bottom:10px}
.marquee-sec .m-sub{text-align:center;color:var(--muted);font-size:15.5px;margin-bottom:44px}
.marquee{overflow:hidden;position:relative;
  mask-image:linear-gradient(90deg,transparent,#000 12%,#000 88%,transparent);
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 12%,#000 88%,transparent)}
.marquee + .marquee{margin-top:16px}
.marquee-track{display:flex;gap:14px;width:max-content;animation:scrollx 42s linear infinite}
.marquee.rev .marquee-track{animation-direction:reverse;animation-duration:48s}
.marquee:hover .marquee-track{animation-play-state:paused}
@keyframes scrollx{to{transform:translateX(-50%)}}
.plat{display:inline-flex;align-items:center;gap:9px;padding:11px 22px;border-radius:12px;font-size:14.5px;font-weight:600;
  color:#c7cfe2;background:rgba(16,23,44,.66);border:1px solid var(--border);transition:.25s;white-space:nowrap}
.plat:hover{border-color:var(--border-strong);color:#fff;box-shadow:0 0 20px rgba(99,102,241,.22);transform:translateY(-2px)}
.plat svg{width:16px;height:16px;color:var(--indigo-soft);flex:none}
.plat small{font-size:11px;color:var(--dim);font-weight:500}
.plat-group{margin:26px 0 12px;font-size:13px;font-weight:700;letter-spacing:.12em;color:var(--indigo-soft)}

/* ===== 痛点 ===== */
.pain-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.pain{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:28px 26px;transition:.3s;position:relative;overflow:hidden}
.pain::before{content:"";position:absolute;inset:0;background:radial-gradient(420px 160px at 20% 0%,rgba(99,102,241,.14),transparent 70%);opacity:0;transition:.4s}
.pain:hover{transform:translateY(-5px);border-color:var(--border-strong);box-shadow:var(--shadow)}
.pain:hover::before{opacity:1}
.pain .q{font-size:15.5px;font-weight:700;color:#d3dbf0;margin-bottom:14px;line-height:1.55}
.pain .a{font-size:14px;color:var(--muted);line-height:1.75}
.pain .a b{color:var(--indigo-soft);font-weight:700;display:block;margin-bottom:5px}
.pain .tag{position:absolute;top:22px;right:22px;font-size:11px;font-weight:700;color:var(--accent);
  background:rgba(255,107,44,.1);border:1px solid rgba(255,107,44,.28);padding:3px 10px;border-radius:999px}

/* ===== 六环闭环 ===== */
.loop{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;counter-reset:step}
.loop-card{counter-increment:step;position:relative;background:var(--panel);border:1px solid var(--border);
  border-radius:var(--radius);padding:30px 28px;transition:.3s;overflow:hidden}
.loop-card::before{content:"0" counter(step);font-size:52px;font-weight:800;line-height:1;position:absolute;top:18px;right:22px;
  background:linear-gradient(180deg,rgba(129,140,248,.28),transparent);-webkit-background-clip:text;background-clip:text;color:transparent}
.loop-card:hover{transform:translateY(-5px);border-color:var(--border-strong);box-shadow:var(--shadow),0 0 34px rgba(99,102,241,.14)}
.loop-card h3{font-size:19px;font-weight:700;margin:16px 0 10px;position:relative}
.loop-card h3 .ln{font-size:12px;font-weight:600;color:var(--accent);display:block;letter-spacing:.1em;margin-bottom:5px}
.loop-card p{font-size:14px;color:var(--muted);line-height:1.8}
.loop-arrow{position:absolute;right:-19px;top:50%;transform:translateY(-50%);z-index:2;color:var(--indigo);opacity:.75}
.loop-card:nth-child(3) .loop-arrow,.loop-card:nth-child(6) .loop-arrow{display:none}
.loop-note{text-align:center;margin-top:34px;color:var(--dim);font-size:14px}
.loop-note b{color:var(--indigo-soft)}

/* ===== Bento 功能 ===== */
.bento{display:grid;grid-template-columns:repeat(12,1fr);gap:22px}
.bcard{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:30px;position:relative;
  overflow:hidden;transition:.35s;display:flex;flex-direction:column}
.bcard::after{content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(129,140,248,.5),transparent);opacity:0;transition:.4s}
.bcard:hover{transform:translateY(-4px);border-color:var(--border-strong);box-shadow:var(--shadow),0 0 40px rgba(99,102,241,.16)}
.bcard:hover::after{opacity:1}
.bcard h3{font-size:19px;font-weight:700;margin-bottom:9px;display:flex;align-items:center;gap:10px}
.bcard h3 svg{width:21px;height:21px;color:var(--indigo-soft);flex:none;filter:drop-shadow(0 0 8px rgba(99,102,241,.5))}
.bcard p{font-size:14px;color:var(--muted);line-height:1.8}
.b7{grid-column:span 7}.b5{grid-column:span 5}.b6{grid-column:span 6}.b12{grid-column:span 12}
.mini{margin-top:auto;padding-top:20px}
.formula{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:12.5px}
.f-chip{padding:6px 12px;border-radius:8px;background:rgba(99,102,241,.13);border:1px solid rgba(129,140,248,.3);color:#c7d2fe;font-weight:600}
.f-op{color:var(--dim);font-weight:700}
.f-res{padding:6px 14px;border-radius:8px;background:linear-gradient(135deg,rgba(255,107,44,.2),rgba(255,138,80,.12));
  border:1px solid rgba(255,107,44,.4);color:#ffb184;font-weight:800}
.tone-list{display:flex;flex-direction:column;gap:9px;font-size:13px}
.tone-list li{display:flex;align-items:center;gap:10px;color:#cdd6ea}
.tone-list li em{font-style:normal;margin-left:auto;font-size:11.5px;color:var(--dim);white-space:nowrap}
.lanes{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:auto;padding-top:18px}
.lane{border-radius:12px;padding:14px;font-size:12.5px;border:1px solid}
.lane-auto{background:rgba(16,185,129,.07);border-color:rgba(16,185,129,.26)}
.lane-auto b{color:#34d399;display:block;margin-bottom:7px;font-size:12.5px}
.lane-pack{background:rgba(255,107,44,.07);border-color:rgba(255,107,44,.28)}
.lane-pack b{color:#ff8a50;display:block;margin-bottom:7px;font-size:12.5px}
.lane span{color:var(--muted);display:block;line-height:1.7}
.code{margin-top:auto;background:rgba(5,8,18,.85);border:1px solid rgba(129,140,248,.22);border-radius:12px;
  padding:16px;font:12.2px/1.75 "SF Mono",Consolas,"Courier New",monospace;color:#a5b4fc;overflow:hidden;white-space:pre}
.code .k{color:#7dd3fc}.code .s{color:#fda4af}.code .v{color:#fcd34d}
.geo-chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto;padding-top:18px}
.browser{margin-top:auto;border:1px solid rgba(129,140,248,.26);border-radius:12px;overflow:hidden;background:rgba(8,12,24,.8)}
.browser .bbar{display:flex;align-items:center;gap:6px;padding:9px 12px;border-bottom:1px solid var(--border)}
.browser .bbar i{width:8px;height:8px;border-radius:50%;background:rgba(129,140,248,.35)}
.browser .bbar span{font-size:11px;color:var(--dim);margin-left:8px;font-family:monospace}
.browser .brows-tags{display:flex;flex-wrap:wrap;gap:7px;padding:13px}
.brows-tags span{font:11px monospace;color:#86efac;background:rgba(16,185,129,.09);border:1px solid rgba(16,185,129,.24);
  padding:4px 9px;border-radius:6px}
.bars{display:flex;align-items:flex-end;gap:8px;height:76px;margin-top:auto;padding-top:18px}
.bars i{flex:1;border-radius:5px 5px 2px 2px;background:linear-gradient(180deg,#818cf8,rgba(99,102,241,.2));animation:grow 1.3s .2s cubic-bezier(.2,.8,.3,1) both}
.bars i:nth-child(3){background:linear-gradient(180deg,#ff8a50,rgba(255,107,44,.22))}
.bars i:nth-child(6){background:linear-gradient(180deg,#ff8a50,rgba(255,107,44,.22))}
.trio{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;padding-top:20px;margin-top:auto}
.trio .t{background:rgba(10,15,32,.6);border:1px solid var(--border);border-radius:12px;padding:16px}
.trio .t b{display:flex;align-items:center;gap:8px;font-size:14px;margin-bottom:6px;color:#d3dbf0}
.trio .t b svg{width:16px;height:16px;color:var(--success)}
.trio .t span{font-size:12.5px;color:var(--dim);line-height:1.7}

/* ===== 成效 ===== */
.results-sec{background:linear-gradient(180deg,transparent,rgba(79,70,229,.06) 30%,transparent)}
.res-wrap{text-align:center;max-width:860px;margin:0 auto}
.res-wrap h2{font-size:clamp(28px,3.4vw,42px);font-weight:800;line-height:1.35;margin:18px 0 16px}
.res-wrap .r-sub{color:var(--muted);font-size:16.5px;max-width:680px;margin:0 auto 54px}
.stats{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.stat{background:var(--panel2);border:1px solid var(--border-strong);border-radius:var(--radius);padding:38px 24px;
  position:relative;overflow:hidden}
.stat::before{content:"";position:absolute;inset:0;background:radial-gradient(300px 120px at 50% 0%,rgba(99,102,241,.2),transparent 70%)}
.stat .num{font-size:clamp(44px,5vw,62px);font-weight:800;line-height:1.1;letter-spacing:-.02em;
  background:linear-gradient(180deg,#fff,var(--indigo-soft));-webkit-background-clip:text;background-clip:text;color:transparent}
.stat .num em{font-style:normal;font-size:.55em;vertical-align:.28em;color:var(--accent)}
.stat .lbl{font-size:15px;font-weight:700;margin-top:10px}
.stat .cal{font-size:12.5px;color:var(--dim);margin-top:7px;line-height:1.7}
.res-note{margin-top:40px;font-size:13.5px;color:var(--dim);display:flex;align-items:center;justify-content:center;gap:8px;flex-wrap:wrap}
.res-note svg{width:16px;height:16px;color:var(--success)}

/* ===== 对比表 ===== */
.compare{overflow-x:auto;border:1px solid var(--border);border-radius:var(--radius);background:var(--panel)}
.compare table{width:100%;border-collapse:collapse;min-width:680px;font-size:14.5px}
.compare th,.compare td{padding:19px 22px;text-align:left;border-bottom:1px solid rgba(129,140,248,.1);vertical-align:top}
.compare thead th{font-size:14px;color:var(--dim);font-weight:600;background:rgba(10,15,30,.6)}
.compare tbody tr:last-child td{border-bottom:none}
.compare td:first-child{font-weight:700;color:#d3dbf0;white-space:nowrap}
.compare .col-us{background:linear-gradient(180deg,rgba(99,102,241,.14),rgba(79,70,229,.06));border-left:1px solid rgba(129,140,248,.3);border-right:1px solid rgba(129,140,248,.3)}
.compare thead .col-us{color:#fff;font-weight:800;position:relative}
.compare thead .col-us::after{content:"";position:absolute;bottom:-1px;left:0;right:0;height:2px;
  background:linear-gradient(90deg,var(--indigo),var(--accent))}
.compare .col-us b{color:var(--indigo-soft)}
.compare .no{color:var(--dim)}
.quote-band{margin-top:46px;text-align:center}
.quote-band p{font-size:clamp(19px,2.3vw,25px);font-weight:700;line-height:1.6}
.quote-band p b{background:linear-gradient(90deg,var(--accent),#ff8a50);-webkit-background-clip:text;background-clip:text;color:transparent}

/* ===== 定价 ===== */
.price-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;align-items:stretch}
.price-grid.cols-2{grid-template-columns:repeat(2,1fr)}
.pcard{background:var(--panel);border:1px solid var(--border);border-radius:18px;padding:32px 26px;display:flex;flex-direction:column;transition:.3s;position:relative}
.pcard:hover{transform:translateY(-6px);border-color:var(--border-strong)}
.pcard.hot{background:linear-gradient(170deg,rgba(79,70,229,.20),rgba(20,28,52,.85) 55%);border-color:rgba(129,140,248,.5);
  box-shadow:var(--shadow),0 0 50px rgba(99,102,241,.22)}
.hot-badge{position:absolute;top:-13px;left:50%;transform:translateX(-50%);font-size:12px;font-weight:800;letter-spacing:.08em;
  background:linear-gradient(135deg,var(--accent),#ff8a50);color:#fff;padding:5px 16px;border-radius:999px;white-space:nowrap;
  box-shadow:0 4px 18px rgba(255,107,44,.45)}
.pcard h3{font-size:19px;font-weight:800}
.pcard .who{font-size:12.5px;color:var(--dim);margin:5px 0 20px;min-height:38px;line-height:1.6}
.price{display:flex;align-items:baseline;gap:6px;margin-bottom:4px}
.price .cur{font-size:16px;color:var(--muted);font-weight:600}
.price .v{font-size:38px;font-weight:800;letter-spacing:-.02em}
.price .per{font-size:13.5px;color:var(--dim)}
.pyear{font-size:12.5px;color:var(--indigo-soft);margin-bottom:22px;min-height:19px}
.pcard ul{display:flex;flex-direction:column;gap:10px;font-size:13.5px;color:var(--muted);margin-bottom:28px}
.pcard ul li{display:flex;gap:9px;line-height:1.6}
.pcard ul svg{width:15px;height:15px;color:var(--success);flex:none;margin-top:4px}
.pcard .btn{margin-top:auto;width:100%;padding:12px 16px;font-size:14.5px}
.price-note{text-align:center;margin-top:36px;font-size:13.5px;color:var(--dim);line-height:2}
.price-note b{color:#c0c9de;font-weight:600}
.know-note{max-width:860px;margin:44px auto 0;background:rgba(245,158,11,.06);border:1px solid rgba(245,158,11,.25);
  border-radius:var(--radius);padding:26px 30px;font-size:13.5px;color:var(--muted);line-height:2}
.know-note b{color:#fbbf24;display:block;margin-bottom:6px;font-size:14.5px}

/* ===== FAQ ===== */
.faq-wrap{max-width:860px;margin:0 auto}
.faq-item{border:1px solid var(--border);border-radius:14px;background:var(--panel);margin-bottom:14px;overflow:hidden;transition:.3s}
.faq-item.open{border-color:var(--border-strong);background:var(--panel2)}
.faq-q{width:100%;display:flex;align-items:center;gap:14px;text-align:left;background:none;border:none;color:var(--text);
  font:inherit;font-size:16px;font-weight:700;padding:21px 24px;cursor:pointer}
.faq-q .fi{margin-left:auto;flex:none;width:26px;height:26px;border-radius:50%;border:1px solid var(--border-strong);
  display:flex;align-items:center;justify-content:center;position:relative;transition:.3s}
.faq-q .fi::before,.faq-q .fi::after{content:"";position:absolute;background:var(--indigo-soft);border-radius:2px;transition:.3s}
.faq-q .fi::before{width:11px;height:2px}
.faq-q .fi::after{width:2px;height:11px}
.faq-item.open .fi{background:var(--indigo-deep);border-color:var(--indigo-deep);transform:rotate(180deg)}
.faq-item.open .fi::after{opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .4s ease}
.faq-a p{padding:0 24px 22px;color:var(--muted);font-size:14.5px;line-height:1.85}
.faq-a b{color:var(--indigo-soft)}

/* ===== 终版 CTA ===== */
.cta-panel{position:relative;border-radius:26px;overflow:hidden;padding:80px 40px;text-align:center;
  background:linear-gradient(140deg,#12183a 0%,#1a1442 48%,#241547 100%);border:1px solid rgba(129,140,248,.34)}
.cta-panel::before{content:"";position:absolute;inset:0;
  background:radial-gradient(560px 280px at 50% -10%,rgba(99,102,241,.42),transparent 70%),
             radial-gradient(420px 220px at 85% 110%,rgba(255,107,44,.2),transparent 70%)}
.cta-panel::after{content:"";position:absolute;inset:0;opacity:.35;
  background-image:linear-gradient(rgba(129,140,248,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(129,140,248,.08) 1px,transparent 1px);
  background-size:44px 44px;mask-image:radial-gradient(ellipse at 50% 0%,#000 20%,transparent 75%);
  -webkit-mask-image:radial-gradient(ellipse at 50% 0%,#000 20%,transparent 75%)}
.cta-panel>*{position:relative;z-index:1}
.cta-panel h2{font-size:clamp(28px,3.6vw,44px);font-weight:800;line-height:1.35;margin-bottom:16px}
.cta-panel .c-sub{color:#b9c3e2;font-size:16.5px;max-width:620px;margin:0 auto 36px}
.cta-btns{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;margin-bottom:26px}
.cta-safe{display:flex;gap:22px;justify-content:center;flex-wrap:wrap;font-size:13.5px;color:#98a5c8}
.cta-safe span{display:inline-flex;align-items:center;gap:7px}
.cta-safe svg{width:15px;height:15px;color:var(--success)}

/* ===== 页脚 ===== */
footer{border-top:1px solid rgba(129,140,248,.12);padding:64px 0 34px;background:rgba(5,8,17,.8)}
.f-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;margin-bottom:44px}
.f-brand .logo{margin-bottom:16px}
.f-brand p{font-size:13.5px;color:var(--dim);line-height:1.8;max-width:300px}
.f-col h4{font-size:13px;font-weight:700;letter-spacing:.12em;color:#aab5d0;margin-bottom:18px;text-transform:uppercase}
.f-col a,.f-col span{display:block;font-size:14px;color:var(--dim);margin-bottom:11px;transition:.2s}
.f-col a:hover{color:#fff}
.f-bottom{border-top:1px solid rgba(129,140,248,.1);padding-top:26px;display:flex;justify-content:space-between;
  align-items:center;gap:16px;flex-wrap:wrap;font-size:12.5px;color:var(--dim)}
.f-bottom .ai-dec{display:inline-flex;align-items:center;gap:7px}
.f-bottom .ai-dec i{width:7px;height:7px;border-radius:50%;background:var(--indigo);display:inline-block;box-shadow:0 0 8px var(--indigo)}

/* ===== 正文页组件（about / contact / consulting / privacy / terms） ===== */
.prose{max-width:860px;margin:0 auto}
.prose h2{font-size:clamp(22px,2.6vw,30px);font-weight:800;margin:56px 0 18px}
.prose h2:first-child{margin-top:0}
.prose h3{font-size:19px;font-weight:700;margin:34px 0 12px;color:#dfe5f5}
.prose p{color:var(--muted);font-size:15.5px;line-height:1.95;margin-bottom:14px}
.prose p b,.prose li b{color:var(--text)}
.prose ul,.prose ol{margin:0 0 16px 4px;display:flex;flex-direction:column;gap:9px}
.prose li{color:var(--muted);font-size:15px;line-height:1.85;padding-left:22px;position:relative}
.prose ul li::before{content:"";position:absolute;left:2px;top:11px;width:7px;height:7px;border-radius:50%;
  background:linear-gradient(135deg,var(--indigo),var(--accent))}
.prose ol{counter-reset:oli}
.prose ol li{counter-increment:oli;padding-left:32px}
.prose ol li::before{content:counter(oli);position:absolute;left:0;top:2px;width:22px;height:22px;border-radius:7px;
  background:rgba(99,102,241,.16);border:1px solid rgba(129,140,248,.3);color:var(--indigo-soft);
  font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center}
.info-card{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:28px 30px;margin:22px 0}
.info-card.gold{background:rgba(245,158,11,.05);border-color:rgba(245,158,11,.25)}
.info-card.gold h3{color:#fbbf24}
.value-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:40px}
.value-grid.cols-2{grid-template-columns:repeat(2,1fr)}
.value-card{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:30px 26px;transition:.3s}
.value-card:hover{transform:translateY(-4px);border-color:var(--border-strong);box-shadow:var(--shadow)}
.value-card .v-ico{width:46px;height:46px;border-radius:13px;background:linear-gradient(135deg,rgba(99,102,241,.25),rgba(124,58,237,.15));
  border:1px solid rgba(129,140,248,.35);display:flex;align-items:center;justify-content:center;margin-bottom:18px}
.value-card .v-ico svg{width:22px;height:22px;color:var(--indigo-soft)}
.value-card h3{font-size:17px;font-weight:700;margin-bottom:10px}
.value-card p{font-size:13.5px;color:var(--muted);line-height:1.8}
.timeline{position:relative;margin-top:44px;padding-left:30px;display:flex;flex-direction:column;gap:30px}
.timeline::before{content:"";position:absolute;left:6px;top:6px;bottom:6px;width:2px;
  background:linear-gradient(180deg,var(--indigo),rgba(99,102,241,.05))}
.tl-item{position:relative}
.tl-item::before{content:"";position:absolute;left:-30px;top:7px;width:14px;height:14px;border-radius:50%;
  background:var(--bg);border:3px solid var(--indigo);box-shadow:0 0 12px rgba(99,102,241,.6)}
.tl-item h3{font-size:17px;font-weight:700;margin-bottom:6px}
.tl-item h3 span{color:var(--accent);font-size:13px;font-weight:700;margin-right:10px;letter-spacing:.06em}
.tl-item p{font-size:14px;color:var(--muted);line-height:1.8}

/* 联系 / 咨询 */
.contact-grid{display:grid;grid-template-columns:1fr 1.2fr;gap:28px;align-items:start}
.c-card{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:30px;transition:.3s}
.c-card:hover{border-color:var(--border-strong)}
.c-card h3{font-size:17px;font-weight:700;margin-bottom:16px;display:flex;align-items:center;gap:10px}
.c-card h3 svg{width:19px;height:19px;color:var(--indigo-soft)}
.c-line{display:flex;align-items:flex-start;gap:13px;padding:13px 0;border-bottom:1px solid rgba(129,140,248,.09)}
.c-line:last-child{border-bottom:none}
.c-line .c-ico{width:38px;height:38px;border-radius:11px;background:rgba(99,102,241,.14);border:1px solid rgba(129,140,248,.28);
  display:flex;align-items:center;justify-content:center;flex:none}
.c-line .c-ico svg{width:17px;height:17px;color:var(--indigo-soft)}
.c-line b{display:block;font-size:13px;color:var(--dim);font-weight:600;margin-bottom:2px}
.c-line a,.c-line span{font-size:15px;color:var(--text);font-weight:600;word-break:break-all;transition:.2s}
.c-line a:hover{color:var(--indigo-soft)}
.c-line small{display:block;font-size:12px;color:var(--dim);font-weight:400;margin-top:2px}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:7px}
.field.full{grid-column:1/-1}
.field label{font-size:13px;font-weight:600;color:#c0c9de}
.field label em{color:var(--accent);font-style:normal}
.field input,.field select,.field textarea{
  background:rgba(8,12,26,.75);border:1px solid var(--border);border-radius:11px;padding:13px 15px;
  color:var(--text);font:inherit;font-size:14.5px;transition:.25s;width:100%;appearance:none}
.field select{background-image:url("data:image/svg+xml;charset=utf-8,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%239aa7c2' stroke-width='2' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 15px center}
.field textarea{min-height:110px;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:rgba(129,140,248,.6);
  box-shadow:0 0 0 3px rgba(99,102,241,.18);background:rgba(10,15,32,.9)}
.field input::placeholder,.field textarea::placeholder{color:#566078}
.form-foot{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:22px}
.form-foot .privacy-tip{font-size:12.5px;color:var(--dim)}
.form-foot .privacy-tip a{color:var(--indigo-soft);text-decoration:underline}
.form-msg{display:none;margin-top:18px;padding:14px 18px;border-radius:12px;font-size:14px;
  background:rgba(16,185,129,.1);border:1px solid rgba(16,185,129,.3);color:#6ee7b7}
.form-msg.show{display:block}
.flow-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;margin:44px 0 8px}
.f-step{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:28px 24px;text-align:center;position:relative;transition:.3s}
.f-step:hover{transform:translateY(-4px);border-color:var(--border-strong)}
.f-step .f-n{width:44px;height:44px;margin:0 auto 16px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  font-size:18px;font-weight:800;background:linear-gradient(135deg,var(--indigo-deep),#7c3aed);color:#fff;
  box-shadow:0 0 22px rgba(99,102,241,.45)}
.f-step h3{font-size:16.5px;font-weight:700;margin-bottom:8px}
.f-step p{font-size:13.5px;color:var(--muted);line-height:1.8}
.qa-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.qa-chips a{font-size:13.5px;color:var(--muted);padding:9px 18px;border-radius:999px;border:1px solid var(--border);
  background:rgba(16,23,44,.6);transition:.25s}
.qa-chips a:hover{color:#fff;border-color:var(--border-strong);background:rgba(99,102,241,.14)}

/* ===== 滚动显现 ===== */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}
.reveal.d1{transition-delay:.08s}.reveal.d2{transition-delay:.16s}.reveal.d3{transition-delay:.24s}
.reveal.d4{transition-delay:.32s}.reveal.d5{transition-delay:.4s}

/* ===== 响应式 ===== */
@media(max-width:1240px){
  .nav-links{display:none}
  .hamburger{display:flex}
}
@media(max-width:1080px){
  .hero-grid{grid-template-columns:1fr;gap:70px}
  .mock{transform:none;max-width:640px;margin:0 auto}
  @keyframes floaty{0%,100%{transform:translateY(0)}50%{transform:translateY(-12px)}}
  .orbit.o1{left:-2%}.orbit.o2{right:-2%}.orbit.o3{left:2%}
  .b7,.b5,.b6{grid-column:span 6}
  .b12{grid-column:span 12}
  .price-grid{grid-template-columns:repeat(2,1fr)}
  .pain-grid{grid-template-columns:repeat(2,1fr)}
  .loop{grid-template-columns:repeat(2,1fr)}
  .loop-arrow{display:none}
  .f-grid{grid-template-columns:1fr 1fr}
  .nav-links{display:none}
  .hamburger{display:flex}
  .contact-grid{grid-template-columns:1fr}
  .value-grid{grid-template-columns:repeat(2,1fr)}
  .flow-steps{grid-template-columns:1fr;max-width:480px;margin-left:auto;margin-right:auto}
}
@media(max-width:820px){
  section{padding:72px 0}
  .page-hero{padding:140px 0 60px}
  .hero{padding:140px 0 70px}
  .pain-grid{grid-template-columns:1fr}
  .loop{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr;max-width:420px;margin:0 auto}
  .b7,.b5,.b6{grid-column:span 12}
  .trio{grid-template-columns:1fr}
  .compare th,.compare td{padding:14px 16px}
}
@media(max-width:560px){
  .price-grid,.price-grid.cols-2{grid-template-columns:1fr}
  .f-grid{grid-template-columns:1fr}
  .hero-ctas .btn{width:100%}
  .orbit{display:none}
  .lanes{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .value-grid,.value-grid.cols-2{grid-template-columns:1fr}
  .cta-panel{padding:56px 22px}
}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
  html{scroll-behavior:auto}
}