/* =========================================================
   Lumina Studio — Light Premium
   设计基调：白底、发丝级描边、克制的靛蓝→青绿点缀、
            编辑部式的留白与字距，靠层次感而非色彩堆砌取胜。
   ========================================================= */
:root{
  /* 色板 */
  --bg:#ffffff;
  --bg-soft:#f9fafb;
  --ink:#0b0c10;
  --ink-2:#2b3038;
  --muted:#5c6270;
  --muted-dim:#8b919e;
  --hair:rgba(11,12,16,.075);
  --hair-strong:rgba(11,12,16,.14);
  --accent:#4f46e5;
  --accent-soft:#f4f5ff;
  --accent-2:#0ea5a3;
  --star:#f0a92e;
  --grad:linear-gradient(100deg,#4f46e5 0%,#6d5ef0 44%,#0ea5a3 100%);

  /* 阴影：分层，宁可浅而多层，不要一团黑 */
  --sh-1:0 1px 2px rgba(16,24,40,.05);
  --sh-2:0 1px 2px rgba(16,24,40,.04),0 8px 20px -6px rgba(16,24,40,.08);
  --sh-3:0 2px 4px rgba(16,24,40,.04),0 18px 40px -12px rgba(16,24,40,.16);
  --sh-4:0 4px 8px rgba(16,24,40,.05),0 32px 64px -20px rgba(16,24,40,.22);

  --radius:16px;
  --radius-lg:20px;
  --radius-xl:28px;
  --maxw:1160px;
  --ease:cubic-bezier(.22,1,.36,1);

  --font-sans:-apple-system,BlinkMacSystemFont,"HarmonyOS Sans SC","PingFang SC","Noto Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --font-serif:"Songti SC","Noto Serif SC","Source Han Serif SC",Georgia,"Times New Roman",serif;
  --font-mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:var(--font-sans);font-size:16px;line-height:1.68;
  letter-spacing:.002em;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4{margin:0;font-weight:660;letter-spacing:-.028em;line-height:1.16;color:var(--ink)}
p{margin:0}
ul,ol,dl,dd,dt{margin:0;padding:0;list-style:none}
>::selection{background:rgba(79,70,229,.14)}
/* 移动端长按：不出现蓝色高亮 / 文字选中 / 系统长按菜单 */
html{-webkit-tap-highlight-color:transparent;-webkit-text-size-adjust:100%;text-size-adjust:100%}
body{
  -webkit-tap-highlight-color:transparent;
  -webkit-touch-callout:none;
  -webkit-user-select:none;
  user-select:none;
  -webkit-user-drag:none;
}
img,a,button,span,strong,em,p,h1,h2,h3,h4,li{-webkit-touch-callout:none;-webkit-user-drag:none}
input,textarea,select,[contenteditable="true"]{-webkit-user-select:text;user-select:text}

.wrap{width:100%;max-width:var(--maxw);margin-inline:auto;padding-inline:22px}
.skip{position:absolute;left:-9999px;top:0;background:var(--ink);color:#fff;padding:10px 16px;border-radius:0 0 10px 0;z-index:200}
.skip:focus{left:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}

/* =========================================================
   背景：白底 + 极淡光晕 + 发丝网格
   ========================================================= */
.bg{position:fixed;inset:0;z-index:-1;overflow:hidden;pointer-events:none;background:var(--bg)}
.spot{position:absolute;border-radius:50%;filter:blur(40px)}
.spot-hero{width:min(1000px,120vw);height:760px;left:50%;top:-380px;transform:translateX(-50%);
  background:radial-gradient(closest-side,rgba(79,70,229,.10),rgba(79,70,229,.03) 55%,transparent 75%)}
.spot-mid{width:760px;height:760px;right:-260px;top:1180px;
  background:radial-gradient(closest-side,rgba(14,165,163,.07),transparent 72%)}
.grid-lines{position:absolute;inset:0;
  background-image:
    linear-gradient(to right,rgba(11,12,16,.032) 1px,transparent 1px),
    linear-gradient(to bottom,rgba(11,12,16,.032) 1px,transparent 1px);
  background-size:72px 72px;
  mask-image:radial-gradient(78% 46% at 50% 0%,#000 0%,transparent 76%);
  -webkit-mask-image:radial-gradient(78% 46% at 50% 0%,#000 0%,transparent 76%)}
.cursor-glow{position:fixed;z-index:0;width:560px;height:560px;left:0;top:0;border-radius:50%;pointer-events:none;opacity:0;transition:opacity .6s ease;
  background:radial-gradient(circle,rgba(79,70,229,.055),transparent 62%);
  transform:translate3d(-50%,-50%,0)}

/* =========================================================
   导航
   ========================================================= */
.nav{position:sticky;top:0;z-index:90;border-bottom:1px solid transparent;
  transition:background .35s ease,border-color .35s ease,box-shadow .35s ease}
.nav.scrolled{background:rgba(255,255,255,.82);backdrop-filter:saturate(180%) blur(16px);-webkit-backdrop-filter:saturate(180%) blur(16px);border-bottom-color:var(--hair)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;height:68px}
.nav-hairline{position:absolute;left:0;right:0;bottom:-1px;height:1px;opacity:0;transition:opacity .4s ease;
  background:linear-gradient(90deg,transparent,rgba(79,70,229,.35) 30%,rgba(14,165,163,.35) 70%,transparent)}
.nav.scrolled .nav-hairline{opacity:1}

.brand{display:flex;align-items:center;gap:9px;font-weight:660;letter-spacing:-.02em}
.brand-mark{display:grid;place-items:center;width:30px;height:30px;border-radius:9px;
  background:var(--accent-soft);border:1px solid rgba(79,70,229,.16);box-shadow:var(--sh-1)}
.brand-text{font-size:16px;color:var(--ink)}
.brand-text i{font-style:normal;font-weight:520;color:var(--muted-dim);margin-left:2px}

.nav-links{display:flex;gap:26px;font-size:14.5px;color:var(--muted)}
.nav-links a{position:relative;padding:6px 0;transition:color .25s ease}
.nav-links a::after{content:"";position:absolute;left:0;right:100%;bottom:2px;height:1px;background:var(--ink);transition:right .38s var(--ease)}
.nav-links a:hover{color:var(--ink)}
.nav-links a:hover::after{right:0}
.nav-actions{display:flex;align-items:center;gap:8px}

.nav-toggle{display:none;width:40px;height:36px;border:1px solid var(--hair-strong);border-radius:10px;background:#fff;cursor:pointer;padding:0;position:relative;box-shadow:var(--sh-1)}
.nav-toggle span{position:absolute;left:11px;right:11px;height:1.5px;background:var(--ink);border-radius:2px;transition:transform .3s var(--ease)}
.nav-toggle span:nth-child(1){top:13px}
.nav-toggle span:nth-child(2){bottom:13px}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(5px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){transform:translateY(-5px) rotate(-45deg)}

/* =========================================================
   按钮：主按钮用近黑，克制而高级
   ========================================================= */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:14.5px;font-weight:560;line-height:1;padding:11px 18px;border-radius:11px;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .26s var(--ease),box-shadow .26s var(--ease),background .26s ease,border-color .26s ease,color .26s ease}
.btn-sm{padding:9px 15px;font-size:14px}
.btn-lg{padding:15px 24px;font-size:15.5px;border-radius:13px}
.btn-block{width:100%}

.btn-dark{background:var(--ink);color:#fff;border-color:var(--ink);box-shadow:var(--sh-1),inset 0 1px 0 rgba(255,255,255,.14)}
.btn-dark:hover{background:#1b1f27;border-color:#1b1f27;transform:translateY(-1px);box-shadow:0 10px 24px -10px rgba(11,12,16,.55)}
.btn-line{background:#fff;color:var(--ink);border-color:var(--hair-strong);box-shadow:var(--sh-1)}
.btn-line:hover{background:#fcfcfd;border-color:rgba(11,12,16,.26);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-quiet{color:var(--muted);padding-inline:10px}
.btn-quiet:hover{color:var(--ink)}
.btn:active{transform:translateY(0) scale(.99)}

/* =========================================================
   Hero
   ========================================================= */
.hero{padding:76px 0 34px}
.hero-inner{display:grid;grid-template-columns:1.04fr .96fr;gap:60px;align-items:center}
.hero-copy{min-width:0}

.pill{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-2);
  padding:6px 8px 6px 13px;border:1px solid var(--hair-strong);border-radius:999px;background:#fff;box-shadow:var(--sh-1)}
.pill .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 3px rgba(79,70,229,.14);animation:pulse 2.6s ease-in-out infinite}
.pill svg{color:var(--muted-dim)}
@keyframes pulse{50%{box-shadow:0 0 0 7px rgba(79,70,229,0)}}

.hero h1{font-size:clamp(35px,7.2vw,60px);margin:24px 0 20px;font-weight:680;letter-spacing:-.04em;line-height:1.08}
.grad-text{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.lede{color:var(--muted);font-size:clamp(15.5px,2.4vw,17px);max-width:33em;line-height:1.75}
.hero-cta{display:flex;flex-wrap:wrap;gap:10px;margin:30px 0 0}

.rating{display:flex;align-items:center;gap:10px;margin-top:24px;flex-wrap:wrap}
.stars{display:inline-flex;align-items:center;gap:2px;color:#f2b01e;flex:none}
.stars svg{display:block;width:15px;height:15px;flex:none}
.rating-text{font-size:13.5px;color:var(--muted)}
.rating-text strong{color:var(--ink);font-weight:640}

.hero-stats{display:flex;gap:44px;margin-top:40px;padding-top:26px;border-top:1px solid var(--hair);flex-wrap:wrap}
.hero-stats dt{font-size:clamp(23px,4.6vw,29px);font-weight:680;letter-spacing:-.035em;font-variant-numeric:tabular-nums;color:var(--ink)}
.hero-stats dd{font-size:12.5px;color:var(--muted-dim);margin-top:2px;letter-spacing:.02em}

/* ---------- 应用样机（浅色版） ---------- */
.hero-visual{position:relative;perspective:1500px;min-width:0}
.app-window{border:1px solid var(--hair-strong);border-radius:var(--radius-lg);background:#fff;overflow:hidden;max-width:100%;
  box-shadow:0 30px 70px -34px rgba(20,22,40,.34),0 2px 6px rgba(20,22,40,.05);
  transform:rotateY(-8deg) rotateX(4deg);transition:transform .9s var(--ease)}
.hero-visual:hover .app-window{transform:rotateY(-2deg) rotateX(1.5deg) translateY(-4px)}
.app-bar{display:flex;align-items:center;gap:6px;padding:11px 14px;border-bottom:1px solid var(--hair);
  background:linear-gradient(180deg,#fcfcfd,#f7f8fa)}
.tl{width:9px;height:9px;border-radius:50%;background:#e3e5ea}
.tl:nth-child(1){background:#ff5f57}.tl:nth-child(2){background:#febc2e}.tl:nth-child(3){background:#28c840}
.app-title{margin-left:10px;font-size:11.5px;color:var(--ink-2);font-family:var(--font-mono);letter-spacing:.01em;white-space:nowrap;min-width:0;overflow:hidden;text-overflow:ellipsis}
.app-title .app-path{color:var(--muted-dim)}
.app-branch{font-size:10.5px;color:var(--muted-dim);font-family:var(--font-mono);padding:2px 7px;border:1px solid var(--hair);
  border-radius:6px;margin-left:8px;background:#fff;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:44%}
.app-badge{margin-left:auto;display:inline-flex;align-items:center;gap:6px;font-size:11px;font-weight:600;color:var(--accent);
  background:var(--accent-soft);border:1px solid rgba(79,70,229,.16);padding:3px 9px;border-radius:999px;white-space:nowrap;flex:none}
.app-badge .live{width:6px;height:6px;border-radius:50%;background:var(--accent);animation:live 1.9s ease-out infinite}
@keyframes live{0%{box-shadow:0 0 0 0 rgba(79,70,229,.45)}70%{box-shadow:0 0 0 6px rgba(79,70,229,0)}100%{box-shadow:0 0 0 0 rgba(79,70,229,0)}}
.app-body{display:grid;grid-template-columns:52px minmax(0,1fr);min-height:322px}
.app-side{border-right:1px solid var(--hair);padding:14px 0;display:flex;flex-direction:column;align-items:center;gap:11px;background:#fbfbfd}
.side-item{width:26px;height:26px;border-radius:8px;background:#eceef2;display:grid;place-items:center;color:#aab1bf}
.side-item svg{width:14px;height:14px}
.side-item.active{background:var(--grad);color:#fff;box-shadow:0 6px 14px -6px rgba(79,70,229,.8)}
.app-canvas{padding:16px 18px 14px;display:flex;flex-direction:column;gap:11px;background:#fff;min-width:0}
.task-head h4{font-size:13px;font-weight:620;letter-spacing:-.015em;color:var(--ink);line-height:1.4}
.task-meta{font-size:10.5px;color:var(--muted-dim);font-family:var(--font-mono);margin-top:3px}
.task-steps{display:flex;flex-direction:column;gap:6px}
.task-steps li{display:flex;align-items:center;gap:8px;font-size:11.5px;color:var(--ink-2);min-width:0}
.task-steps li span:nth-child(2){overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.task-steps li em{margin-left:auto;font-style:normal;font-size:10.5px;color:var(--muted-dim);font-family:var(--font-mono);white-space:nowrap}
.task-steps .tk{width:14px;height:14px;border-radius:50%;display:grid;place-items:center;font-size:9px;flex:none;
  background:#ecfaf7;color:#0d8f8b;border:1px solid rgba(14,165,163,.22)}
.task-steps li.run{color:var(--ink);font-weight:560}
.task-steps li.run .tk{background:transparent;border:1.5px solid rgba(79,70,229,.22);border-top-color:var(--accent);animation:spin 1s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.diff{border:1px solid var(--hair);border-radius:10px;overflow:hidden;background:#fcfcfd;font-family:var(--font-mono)}
.diff-head{display:flex;align-items:center;gap:8px;padding:7px 10px;border-bottom:1px solid var(--hair);background:#f7f8fa;font-size:10.5px;color:var(--muted)}
.diff-file{color:var(--ink-2);overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.diff-head .add{color:#0d8f7f}.diff-head .del{color:#c94b3f}
.dl{display:flex;gap:8px;padding:3px 10px;font-size:10.5px;line-height:1.6;white-space:nowrap;overflow:hidden}
.dl .ln{color:#c2c7d1;width:16px;flex:none;text-align:right}
.dl code{font-family:inherit;color:var(--ink-2);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;min-width:0}
.dl em{font-style:normal;color:#7c5cff}
.dl b{font-weight:600;color:var(--ink)}
.dl.add{background:rgba(14,165,163,.07)}
.dl.add code{color:#0b6f6b}
.dl.del{background:rgba(224,90,78,.06)}
.dl.del code{color:#a8483d}
.canvas-foot{display:flex;align-items:center;gap:9px;margin-top:auto;font-size:10px;color:var(--muted-dim);
  font-family:var(--font-mono);flex-wrap:nowrap;min-width:0}
.pill-ok{display:inline-flex;align-items:center;gap:4px;padding:2px 7px;border-radius:999px;white-space:nowrap;
  background:#ecfaf7;color:#0d8f8b;border:1px solid rgba(14,165,163,.2);font-size:10px}
.foot-item{white-space:nowrap}
.progress{flex:1 1 60px;min-width:40px;height:4px;border-radius:99px;background:#eceef2;overflow:hidden;margin-left:auto}
.progress i{display:block;height:100%;width:75%;border-radius:99px;background:var(--grad);animation:fill 4.6s var(--ease) infinite}
@keyframes fill{0%{width:10%}60%{width:75%}100%{width:75%}}

.float-card{position:absolute;display:flex;flex-direction:column;gap:1px;padding:11px 15px;border-radius:14px;background:rgba(255,255,255,.94);
  border:1px solid var(--hair-strong);backdrop-filter:blur(12px);box-shadow:var(--sh-3);animation:float 6.5s ease-in-out infinite}
.fc-1{left:-24px;bottom:52px}
.fc-2{right:-16px;top:40px;animation-delay:-3.2s}
.fc-label{font-size:11px;color:var(--muted-dim);letter-spacing:.02em}
.float-card strong{font-size:16px;letter-spacing:-.02em;color:var(--ink)}
.float-card em{font-style:normal;font-size:10px;color:var(--muted-dim);font-family:var(--font-mono);margin-top:2px}
.fc-1 strong{color:var(--accent-2)}
@keyframes float{50%{transform:translateY(-10px)}}

/* ---------- 信任logo条 ---------- */
.trusted{margin-top:76px;padding-top:28px;border-top:1px solid var(--hair)}
.trusted-label{display:block;font-size:11.5px;letter-spacing:.22em;text-transform:uppercase;color:var(--muted-dim);margin-bottom:22px}
.logo-row{display:flex;flex-wrap:wrap;align-items:center;gap:20px 46px}
.logo-row li{font-size:15.5px;font-weight:600;letter-spacing:.05em;color:#c3c8d2;transition:color .3s ease}
.logo-row li:hover{color:var(--muted)}

/* =========================================================
   通用区块
   ========================================================= */
.section{padding:100px 0;position:relative}
.section-soft{background:var(--bg-soft);border-top:1px solid var(--hair);border-bottom:1px solid var(--hair)}
.sec-head{max-width:640px;margin-bottom:52px}
.eyebrow{display:inline-block;font-size:11.5px;font-weight:600;letter-spacing:.22em;text-transform:uppercase;color:var(--accent);margin-bottom:16px}
.sec-head h2{font-size:clamp(28px,5.2vw,42px);letter-spacing:-.038em}
.sec-head p{color:var(--muted);margin-top:16px;font-size:16.5px}
.muted{color:var(--muted)}

/* ---------- Bento 能力网格 ---------- */
.bento{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.card{position:relative;padding:28px;border-radius:var(--radius-lg);border:1px solid var(--hair);background:#fff;overflow:hidden;
  box-shadow:var(--sh-1);transition:transform .45s var(--ease),border-color .45s ease,box-shadow .45s ease}
.card::before{content:"";position:absolute;inset:0;opacity:0;transition:opacity .45s ease;pointer-events:none;
  background:radial-gradient(420px 220px at var(--mx,50%) var(--my,0%),rgba(79,70,229,.065),transparent 70%)}
.card:hover{transform:translateY(-4px);border-color:rgba(11,12,16,.16);box-shadow:var(--sh-3)}
.card:hover::before{opacity:1}
.card-lg{grid-column:span 2}
.card-wide{grid-column:span 3;display:grid;grid-template-columns:auto 1fr;gap:6px 22px;align-items:start}
.card-wide .card-icon{grid-row:span 2}
.card-wide .chips{grid-column:2}
.card-icon{position:relative;z-index:1;width:42px;height:42px;border-radius:12px;display:grid;place-items:center;margin-bottom:18px;
  background:var(--accent-soft);border:1px solid rgba(79,70,229,.16);color:var(--accent)}
.card h3{position:relative;z-index:1;font-size:19px;margin-bottom:10px;letter-spacing:-.024em}
.card p{position:relative;z-index:1;color:var(--muted);font-size:15px;line-height:1.72}
.ticks{margin-top:18px;display:flex;flex-direction:column;gap:9px;position:relative;z-index:1}
.ticks li{position:relative;padding-left:23px;font-size:14.5px;color:var(--muted)}
.ticks li::before{content:"";position:absolute;left:0;top:.52em;width:12px;height:6px;
  border-left:1.7px solid var(--accent);border-bottom:1.7px solid var(--accent);transform:rotate(-45deg)}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:4px;position:relative;z-index:1}
.chips span{font-size:13px;color:var(--muted);padding:6px 13px;border-radius:999px;border:1px solid var(--hair);background:#fff;box-shadow:var(--sh-1)}

/* ---------- 三步流程 ---------- */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.step{position:relative;padding:30px 26px;border-radius:var(--radius-lg);border:1px solid var(--hair);background:#fff;box-shadow:var(--sh-1)}
.step-no{font-family:var(--font-mono);font-size:12.5px;color:var(--accent);letter-spacing:.16em}
.step h3{font-size:19.5px;margin:14px 0 10px;letter-spacing:-.026em}
.step p{color:var(--muted);font-size:15px;line-height:1.72}
.step::after{content:"";position:absolute;right:-9px;top:50%;width:18px;height:1px;background:var(--hair-strong)}
.step:last-child::after{display:none}

/* ---------- 数据表现 ---------- */
.metrics-inner{display:grid;grid-template-columns:.92fr 1.08fr;gap:60px;align-items:center}
.metrics-copy h2{font-size:clamp(28px,5.2vw,42px);letter-spacing:-.038em;margin:14px 0 16px}
.metrics-copy p{font-size:16.5px;line-height:1.75}
.metrics-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:14px}
.metric{padding:26px;border-radius:var(--radius);border:1px solid var(--hair);background:#fff;box-shadow:var(--sh-1);
  transition:transform .4s var(--ease),box-shadow .4s ease}
.metric:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.metric strong{display:block;font-size:clamp(30px,6vw,38px);font-weight:680;letter-spacing:-.045em;
  font-variant-numeric:tabular-nums;color:var(--ink);line-height:1.1}
.metric span{display:block;margin-top:6px;font-size:13.5px;color:var(--muted-dim)}

/* ---------- 引言 ---------- */
.section-quote{padding-top:20px;padding-bottom:90px}
.quote{max-width:880px;margin-inline:auto;padding:46px 46px 40px;border-radius:var(--radius-xl);
  border:1px solid var(--hair);background:linear-gradient(180deg,#fff,#fcfcfe);box-shadow:var(--sh-2);position:relative;overflow:hidden}
.quote::before{content:"“";position:absolute;top:2px;left:26px;font-size:104px;line-height:1;
  font-family:var(--font-serif);color:rgba(79,70,229,.14)}
.quote p{position:relative;font-family:var(--font-serif);font-size:clamp(18px,3.5vw,23px);line-height:1.62;color:var(--ink-2);letter-spacing:.004em}
.quote footer{display:flex;align-items:center;gap:13px;margin-top:26px;padding-top:22px;border-top:1px solid var(--hair)}
.avatar{width:42px;height:42px;border-radius:50%;display:grid;place-items:center;background:var(--grad);color:#fff;font-weight:640;font-size:16px}
.quote footer strong{display:block;font-size:15px;font-weight:620}
.quote footer em{font-style:normal;font-size:13px;color:var(--muted-dim)}

/* ---------- 定价 ---------- */
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;align-items:start}
.plan{position:relative;padding:32px 28px 28px;border-radius:var(--radius-lg);border:1px solid var(--hair);background:#fff;
  box-shadow:var(--sh-1);display:flex;flex-direction:column;gap:4px;
  transition:transform .4s var(--ease),box-shadow .4s ease,border-color .4s ease}
.plan:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.plan-featured{border-color:rgba(79,70,229,.30);background:linear-gradient(180deg,#f8f8ff,#fff 55%);box-shadow:var(--sh-3)}
.plan-featured:hover{box-shadow:var(--sh-4)}
.ribbon{position:absolute;top:-1px;right:22px;font-size:11.5px;font-weight:620;color:#fff;background:var(--ink);
  padding:5px 12px;border-radius:0 0 9px 9px;letter-spacing:.02em}
.plan h3{font-size:15px;color:var(--muted);font-weight:560;letter-spacing:.02em}
.price{font-size:40px;font-weight:680;letter-spacing:-.045em;color:var(--ink);margin-top:6px;line-height:1.1}
.price em{font-style:normal;font-size:14px;font-weight:500;color:var(--muted-dim);margin-left:4px;letter-spacing:0}
.plan-desc{font-size:14.5px;color:var(--muted-dim);margin-bottom:12px}
.plan .ticks{margin-bottom:24px}
.plan .btn{margin-top:auto}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:.78fr 1.22fr;gap:60px;align-items:start}
.faq-wrap .sec-head{margin-bottom:0}
.faq{border-top:1px solid var(--hair)}
.faq details{border-bottom:1px solid var(--hair)}
.faq summary{list-style:none;cursor:pointer;padding:21px 42px 21px 0;font-size:16.5px;font-weight:560;color:var(--ink);position:relative;transition:color .25s ease}
.faq summary::-webkit-details-marker{display:none}
.faq summary:hover{color:var(--accent)}
.faq summary::after{content:"";position:absolute;right:8px;top:50%;width:9px;height:9px;
  border-right:1.6px solid var(--muted);border-bottom:1.6px solid var(--muted);
  transform:translateY(-70%) rotate(45deg);transition:transform .32s var(--ease),border-color .25s ease}
.faq summary:hover::after{border-color:var(--accent)}
.faq details[open] summary::after{transform:translateY(-40%) rotate(225deg)}
.faq details p{color:var(--muted);font-size:15px;line-height:1.75;padding:0 42px 22px 0;animation:fadeIn .5s var(--ease)}
@keyframes fadeIn{from{opacity:0;transform:translateY(8px)}to{opacity:1;transform:none}}

/* ---------- CTA ---------- */
.cta-band{padding:0 0 96px}
.cta-inner{position:relative;text-align:center;padding:66px 30px;border-radius:var(--radius-xl);border:1px solid var(--hair);overflow:hidden;
  background:
    radial-gradient(120% 140% at 50% 0%,rgba(79,70,229,.09),transparent 58%),
    radial-gradient(90% 120% at 50% 100%,rgba(14,165,163,.06),transparent 60%),
    linear-gradient(180deg,#fff,#fbfbfe);
  box-shadow:var(--sh-2)}
.cta-inner h2{font-size:clamp(26px,5vw,40px);letter-spacing:-.04em}
.cta-inner p{color:var(--muted);margin-top:16px;font-size:16.5px}
.cta-inner .hero-cta{justify-content:center;margin-top:30px}

/* ---------- 页脚 ---------- */
.footer{border-top:1px solid var(--hair);background:var(--bg-soft);padding:56px 0 28px}
.footer-inner{display:grid;grid-template-columns:1.2fr 2fr;gap:44px}
.footer-brand p{color:var(--muted-dim);font-size:14.5px;margin-top:12px}
.footer-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.footer-cols h4{font-size:11.5px;color:var(--muted-dim);font-weight:600;letter-spacing:.16em;text-transform:uppercase;margin-bottom:14px}
.footer-cols a{display:block;font-size:14.5px;color:var(--muted);padding:5px 0;transition:color .25s ease}
.footer-cols a:hover{color:var(--ink)}

/* ---------- 页脚：订阅与状态 ---------- */
.sub-form{display:flex;gap:8px;margin-top:18px;max-width:360px}
.sub-form input[type="email"]{flex:1 1 auto;min-width:0;font:inherit;font-size:14px;padding:9px 13px;
  border-radius:10px;border:1px solid var(--hair-strong);background:#fff;box-shadow:var(--sh-1);color:var(--ink)}
.sub-form input[type="email"]:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(79,70,229,.12)}
.sub-form input.invalid{border-color:#e05a4e}
.sub-note{font-size:12.5px;color:var(--muted-dim);margin-top:9px}
.sub-note.ok{color:#0d6f6c}
.sub-note.bad{color:#c0392b}
.svc-line{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:13px;color:var(--muted);margin-top:16px}
.svc-line a{color:var(--accent);text-decoration:none}
.svc-line a:hover{text-decoration:underline}
.svc-dot{width:7px;height:7px;border-radius:50%;background:#c8ccd4;flex:none}
.svc-dot.ok{background:#0ea5a3;box-shadow:0 0 0 3px rgba(14,165,163,.16)}
.svc-dot.bad{background:#e05a4e;box-shadow:0 0 0 3px rgba(224,90,78,.16)}

/* ---------- 无障碍 / 反垃圾 ---------- */
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.hp{position:absolute!important;left:-9999px!important;top:auto;width:1px;height:1px;opacity:0;pointer-events:none}
.footer-bottom{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:46px;padding-top:22px;border-top:1px solid var(--hair);font-size:13px;color:var(--muted-dim)}

/* =========================================================
   滚动揭示
   ========================================================= */
.reveal{opacity:0;transform:translateY(20px);transition:opacity .85s var(--ease),transform .85s var(--ease)}
.reveal.in{opacity:1;transform:none}

/* =========================================================
   响应式
   ========================================================= */
@media (max-width:1024px){
  .hero-inner{grid-template-columns:1fr;gap:56px}
  .app-window{transform:none}
  .hero-visual:hover .app-window{transform:none}
  .bento{grid-template-columns:repeat(2,1fr)}
  .card-lg,.card-wide{grid-column:span 2}
  .card-wide{grid-template-columns:auto 1fr}
  .metrics-inner,.faq-wrap{grid-template-columns:1fr;gap:36px}
  .plans{grid-template-columns:1fr;max-width:520px;margin-inline:auto}
  .plan-featured{order:-1}
  .steps{grid-template-columns:1fr;gap:12px}
  .step::after{display:none}
  .footer-inner{grid-template-columns:1fr;gap:36px}
  .section{padding:84px 0}
}
@media (max-width:720px){
  .nav-links{position:absolute;left:0;right:0;top:68px;flex-direction:column;gap:0;display:none;
    background:rgba(255,255,255,.98);backdrop-filter:blur(18px);border-bottom:1px solid var(--hair);
    padding:6px 22px 16px;box-shadow:var(--sh-2)}
  .nav-links.open{display:flex}
  .nav-links a{padding:15px 0;border-bottom:1px solid var(--hair);font-size:16px;color:var(--ink-2)}
  .nav-links a:last-child{border-bottom:0}
  .nav-toggle{display:block}
  .nav-actions .btn-quiet{display:none}
  .hero{padding:52px 0 24px}
  .hero-stats{gap:24px}
  .hero-stats > div{flex:1 1 28%}
  .bento{grid-template-columns:1fr}
  .card-lg,.card-wide{grid-column:span 1}
  .card-wide{grid-template-columns:1fr}
  .card-wide .card-icon{grid-row:auto}
  .card{padding:24px}
  .section{padding:66px 0}
  .metrics-grid{grid-template-columns:1fr 1fr}
  .metric{padding:20px}
  .quote{padding:32px 24px 28px}
  .quote::before{font-size:80px;left:16px}
  .footer-cols{grid-template-columns:1fr 1fr}
  .cta-inner{padding:48px 22px}
  .float-card{display:none}
  .hero-cta .btn{flex:1 1 auto}
}
@media (max-width:400px){
  .logo-row{gap:14px 26px}
  .logo-row li{font-size:14px}
  .hero-stats > div{flex:1 1 100%}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.001ms!important;animation-iteration-count:1!important;transition-duration:.001ms!important}
  html{scroll-behavior:auto}
  .reveal{opacity:1;transform:none}
}
@media print{
  .bg,.cursor-glow,.nav,.float-card{display:none}
  body{background:#fff}
  .reveal{opacity:1;transform:none}
}
/* ---------- 样机：窄屏收敛 ---------- */
@media (max-width:720px){
  .app-window{transform:none}
  .app-bar{padding:8px 10px;gap:5px;flex-wrap:nowrap}
  .app-title{margin-left:7px;font-size:10.5px}
  .app-title .app-path{display:none}
  .app-branch{display:none}
  .app-badge{font-size:9.5px;padding:2px 7px;gap:5px;letter-spacing:0}
  .app-badge .live{width:5px;height:5px}
  .app-body{grid-template-columns:38px minmax(0,1fr);min-height:0}
  .app-side{padding:10px 0;gap:9px}
  .side-item{width:22px;height:22px;border-radius:7px}
  .side-item svg{width:12px;height:12px}
  .app-canvas{padding:11px;gap:7px}
  .task-head h4{font-size:11.5px;line-height:1.35}
  .task-meta{font-size:9px;margin-top:2px}
  .task-steps{gap:4px}
  .task-steps li{font-size:10px;gap:6px}
  .task-steps .tk{width:11px;height:11px;font-size:7px}
  .task-steps li em{font-size:9px}
  .diff-head{padding:4px 7px;font-size:9px;gap:5px}
  .dl{padding:2px 7px;font-size:9px;line-height:1.5;gap:5px}
  .dl .ln{width:13px}
  .canvas-foot{font-size:8.5px;gap:5px}
  .pill-ok{font-size:8.5px;padding:1px 5px}
  .progress{flex:1 1 32px;min-width:24px}
}