/* 阿秒官网 site-draft-v3：真实截图讲故事，文案朴素，成熟干净的 SaaS 风格 */
:root{
  --bg:#FFFFFF; --soft:#F5F7FA; --card:#FFFFFF;
  --ink:#0B1526; --ink-2:#46546C; --ink-3:#7F8CA2; --line:#E3E8F0;
  --brand:#2563EB; --brand-ink:#1D4ED8; --brand-soft:#EEF3FF;
  --warn:#9D6B12; --warn-soft:#FFF5E1; --ok:#07B75C; --ok-soft:#E8F8EF;
  --todo:#C2410C; --todo-soft:#FFF1E6;
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;
  --r:16px;
  --shot:0 30px 60px -28px rgba(16,32,64,.32),0 0 0 1px rgba(16,32,64,.08);
}
@media (prefers-color-scheme:dark){:root:not([data-theme="light"]){
  --bg:#0B1120; --soft:#0F1829; --card:#131D30; --ink:#EAF0FA; --ink-2:#AAB6CB; --ink-3:#7C89A1; --line:#223049;
  --brand:#5B8FF9; --brand-ink:#8DB1FB; --brand-soft:#16264A; --warn:#FBBF4C; --warn-soft:#2B2312; --ok:#34D27F; --ok-soft:#10291C;
  --todo:#FB923C; --todo-soft:#2E1A0E;
  --shot:0 30px 60px -28px rgba(0,0,0,.7),0 0 0 1px rgba(255,255,255,.08); color-scheme:dark}}
:root[data-theme="dark"]{
  --bg:#0B1120; --soft:#0F1829; --card:#131D30; --ink:#EAF0FA; --ink-2:#AAB6CB; --ink-3:#7C89A1; --line:#223049;
  --brand:#5B8FF9; --brand-ink:#8DB1FB; --brand-soft:#16264A; --warn:#FBBF4C; --warn-soft:#2B2312; --ok:#34D27F; --ok-soft:#10291C;
  --todo:#FB923C; --todo-soft:#2E1A0E;
  --shot:0 30px 60px -28px rgba(0,0,0,.7),0 0 0 1px rgba(255,255,255,.08); color-scheme:dark}

*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:80px}
body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--font);font-size:17px;line-height:1.75;-webkit-font-smoothing:antialiased;overflow-x:hidden}
h1,h2,h3,h4{margin:0;text-wrap:balance;letter-spacing:-.01em}
p,ul,ol,dl,dd,figure{margin:0}
ul,ol{padding:0;list-style:none}
a{color:inherit}
img{display:block;max-width:100%;height:auto}
button{font:inherit;color:inherit}
.wrap{max-width:1200px;margin:0 auto;padding-inline:24px}
@media (max-width:640px){.wrap{padding-inline:16px}}

.btn{display:inline-flex;align-items:center;justify-content:center;height:50px;padding:0 26px;border-radius:12px;font-size:16px;font-weight:700;text-decoration:none;border:1px solid transparent;white-space:nowrap;cursor:pointer;background:none}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 20px -10px rgba(37,99,235,.7)}
.btn-primary:hover{background:var(--brand-ink)}
.btn-line{background:var(--card);border-color:var(--line);color:var(--ink)}
.btn-line:hover{border-color:var(--ink-3)}
.btn-sm{height:40px;padding:0 16px;font-size:15px;border-radius:10px}
.btn:disabled{opacity:.45;cursor:default}
a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid var(--brand);outline-offset:3px}

.draft-bar{background:var(--warn-soft);color:var(--ink-2);font-size:13px;text-align:center;padding:6px 16px}
.todo{display:inline-block;padding:0 6px;border-radius:6px;background:var(--todo-soft);color:var(--todo);font-weight:700;outline:1px dashed var(--todo)}
.todo-note{color:var(--todo);font-size:14px;text-align:center}

/* header */
.head{position:sticky;top:0;z-index:30;background:color-mix(in srgb,var(--bg) 92%,transparent);backdrop-filter:saturate(1.4) blur(12px);border-bottom:1px solid var(--line)}
.head-row{display:flex;align-items:center;gap:36px;height:64px}
.logo{display:flex;align-items:center;gap:10px;font-weight:900;font-size:20px;text-decoration:none}
.logo svg{width:32px;height:32px}
.nav{display:flex;gap:28px;font-size:15px;color:var(--ink-2)}
.nav a,.head-link{text-decoration:none}
.nav a:hover,.head-link:hover{color:var(--ink)}
.head-cta{margin-left:auto;display:flex;align-items:center;gap:20px;font-size:15px;color:var(--ink-2)}
.menu-btn{display:none;width:40px;height:40px;border:1px solid var(--line);border-radius:10px;background:var(--card);flex-direction:column;align-items:center;justify-content:center;gap:5px;cursor:pointer}
.menu-btn span{display:block;width:16px;height:2px;border-radius:2px;background:var(--ink)}
.mnav{display:flex;flex-direction:column;padding:8px 16px 16px;border-top:1px solid var(--line);background:var(--bg)}
.mnav[hidden]{display:none}
.mnav a{padding:12px 0;font-size:17px;text-decoration:none;border-bottom:1px solid var(--line)}
@media (max-width:900px){.nav,.head-download{display:none}.head-row{gap:12px}}
@media (max-width:640px){.head-link{display:none}.menu-btn{display:flex}.head-cta{gap:10px}}

/* hero */
.hero{padding:64px 0 72px;overflow:hidden}
.hero-grid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:48px;align-items:center}
.eyebrow{display:inline-block;padding:4px 12px;border-radius:999px;background:var(--brand-soft);color:var(--brand-ink);font-size:14px;font-weight:700}
.hero h1 .nw{display:inline-block}
.hero h1{margin-top:18px;font-size:clamp(30px,3.4vw,46px);font-weight:900;line-height:1.2}
.lead{margin-top:18px;font-size:18px;color:var(--ink-2)}
.ctas{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-note{margin-top:16px;font-size:14px;color:var(--ink-3)}
.hero-note a{color:var(--ink-2)}
.hero-shots{position:relative;padding-bottom:40px}
.win{border-radius:12px;overflow:hidden;background:#fff;box-shadow:var(--shot)}
.win-bar{height:28px;background:#ECECEE;display:flex;align-items:center;gap:7px;padding-left:12px;border-bottom:1px solid #DCDCDF;position:relative}
.win-bar i{width:11px;height:11px;border-radius:50%;background:#FF5F57}
.win-bar i:nth-child(2){background:#FEBC2E}.win-bar i:nth-child(3){background:#28C840}
.win-title{position:absolute;left:0;right:0;text-align:center;font-size:12px;color:#6b7280;pointer-events:none}
.phone{filter:drop-shadow(0 24px 40px rgba(16,32,64,.28))}
.hero-desk{width:100%}
.hero-phone{position:absolute;right:-12px;bottom:0;width:31%}
@media (max-width:1000px){.hero-grid{grid-template-columns:1fr;gap:36px}.hero-copy{max-width:640px}}
@media (max-width:640px){
  .hero{padding:36px 0 40px}
  .br-wide{display:none}
  .lead{font-size:17px}
  .ctas .btn{flex:1 1 140px}
  /* 手机上不把整张电脑截图缩小：首屏只放手机界面 */
  .hero-desk{display:none}
  .hero-shots{padding:0}
  .hero-phone{position:static;width:min(78%,300px);margin:0 auto}
}

/* sections */
.sec{padding:88px 0}
.sec-soft{background:var(--soft)}
.sec-head{max-width:720px;margin-bottom:40px}
.sec-head h2{font-size:clamp(26px,3vw,38px);font-weight:900;line-height:1.3}
.sec-head p{margin-top:12px;color:var(--ink-2);font-size:17px}
@media (max-width:640px){.sec{padding:56px 0}.sec-head{margin-bottom:28px}}

.three{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.card{padding:24px;border:1px solid var(--line);border-radius:var(--r);background:var(--card)}
.card h3{font-size:20px;font-weight:800}
.card p{margin-top:8px;color:var(--ink-2);font-size:16px}
@media (max-width:860px){.three{grid-template-columns:1fr}}

/* 老板的一天 */
.day{margin-top:64px}
.day-title{font-size:24px;font-weight:900;margin-bottom:20px}
.day-tabs{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;margin-bottom:24px}
.day-tabs button,.feat-list button{display:flex;flex-direction:column;align-items:flex-start;gap:2px;text-align:left;padding:14px 16px;border:1px solid var(--line);border-radius:12px;background:var(--card);cursor:pointer}
.day-tabs b{font-size:17px}
.day-tabs small{font-size:13px;color:var(--ink-3);line-height:1.5}
.day-tabs [aria-selected=true],.feat-list [aria-selected=true]{border-color:var(--brand);box-shadow:0 0 0 1px var(--brand) inset;background:var(--brand-soft)}
.day-panel{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:32px;align-items:center}
.day-phone{display:none}
.day-text h4{font-size:22px;font-weight:800}
.day-text ul{margin-top:14px;display:grid;gap:10px}
.day-text li{position:relative;padding-left:22px;color:var(--ink-2)}
.day-text li::before{content:"";position:absolute;left:4px;top:.7em;width:8px;height:8px;border-radius:50%;background:var(--ok)}
@media (max-width:860px){
  .day-tabs{grid-template-columns:repeat(2,minmax(0,1fr))}
  .day-panel{grid-template-columns:1fr;gap:20px}
}
@media (max-width:640px){.day-shot{display:none}.day-phone{display:block;width:min(74%,290px);margin:0 auto}}

/* 核心演示 */
.demo{display:grid;grid-template-columns:200px minmax(0,1fr);gap:28px}
.demo-steps{display:flex;flex-direction:column;gap:6px;counter-reset:s}
.demo-steps button{width:100%;display:flex;align-items:center;gap:10px;padding:10px 12px;border:0;border-radius:10px;background:none;text-align:left;font-size:15px;color:var(--ink-2);cursor:pointer}
.demo-steps button span{flex:none;display:grid;place-items:center;width:24px;height:24px;border-radius:50%;background:var(--line);font-size:12px;font-weight:700;color:var(--ink-2)}
.demo-steps button[aria-current=step]{background:var(--card);color:var(--ink);font-weight:700;box-shadow:0 0 0 1px var(--line)}
.demo-steps button[aria-current=step] span{background:var(--brand);color:#fff}
.demo-stage{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:24px;align-items:start}
.demo-desk{grid-column:1/-1;cursor:pointer}
.demo-phone{display:none}
.demo-caption{grid-column:1/-1;display:grid;grid-template-columns:minmax(0,1fr) auto;gap:6px 24px;align-items:end;padding:20px 24px;border-radius:var(--r);background:var(--card);border:1px solid var(--line)}
.demo-kicker{grid-column:1;font-size:13px;font-weight:700;color:var(--brand-ink)}
.demo-caption h3{grid-column:1;font-size:21px;font-weight:800}
.demo-body{grid-column:1;color:var(--ink-2);font-size:16px}
.demo-branch{grid-column:1;display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-top:8px;padding:12px;border-radius:12px;background:var(--warn-soft)}
.demo-branch[hidden]{display:none}
.demo-branch p{font-size:14px;font-weight:700;color:var(--warn);margin-right:4px}
.demo-branch [aria-pressed=true]{border-color:var(--brand);color:var(--brand-ink)}
.demo-ctrl{grid-column:2;grid-row:1/span 4;display:flex;flex-direction:column;gap:8px;align-self:center}
.demo-play{border:0;background:none;font-size:13px;color:var(--ink-3);cursor:pointer;text-decoration:underline;text-underline-offset:3px}
@media (max-width:1000px){.demo{grid-template-columns:1fr}.demo-steps{flex-direction:row;flex-wrap:wrap}.demo-steps li{flex:0 0 auto}.demo-steps button{padding:6px 10px;font-size:14px}}
@media (max-width:640px){
  /* 手机：用手机界面逐帧，不缩小电脑截图；每屏一个关键动作 */
  .demo-desk{display:none}
  .demo-stage{grid-template-columns:1fr}
  .demo-phone{display:block;width:min(74%,290px);margin:0 auto;cursor:pointer}
  .demo-caption{grid-template-columns:1fr;padding:16px}
  .demo-ctrl{grid-column:1;grid-row:auto;flex-direction:row;flex-wrap:wrap;align-items:center}
  .demo-ctrl .btn{flex:1 1 120px}
  .demo-steps{gap:4px}
  .demo-steps button{font-size:13px;padding:6px 8px}
}

/* 功能区 */
.feat{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:32px;align-items:start}
.feat-list{display:flex;flex-direction:column;gap:8px}
.feat-list b{font-size:17px}
.feat-list span{font-size:14px;color:var(--ink-2);line-height:1.6}
.feat-more{margin-top:28px;color:var(--ink-3);font-size:15px}
@media (max-width:860px){.feat{grid-template-columns:1fr}.feat-shot{order:-1}}
@media (max-width:640px){
  /* 手机上功能区只保留文字卡，不放缩小的电脑截图 */
  .feat-shot{display:none}
  .feat-list button[aria-selected=true]{background:var(--card);box-shadow:none;border-color:var(--line)}
}

/* 阿秒区 */
.amiao-grid{display:grid;grid-template-columns:minmax(0,6fr) minmax(0,6fr);gap:48px;align-items:center}
.amiao-badge{display:inline-flex;align-items:center;gap:10px;padding:6px 14px 6px 6px;border-radius:999px;background:var(--card);border:1px solid var(--line);font-weight:800}
.amiao-badge svg{width:32px;height:32px}
.amiao-copy h2{margin-top:16px;font-size:clamp(26px,3vw,38px);font-weight:900}
.ask-list{margin-top:24px;display:grid;gap:12px}
.ask-list li{display:grid;grid-template-columns:96px minmax(0,1fr);gap:12px;padding:14px 16px;border-radius:12px;background:var(--card);border:1px solid var(--line)}
.ask-list b{font-size:16px}
.ask-list span{color:var(--ink-2);font-size:15px}
.amiao-phones{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
@media (max-width:860px){.amiao-grid{grid-template-columns:1fr;gap:32px}}
@media (max-width:640px){.ask-list li{grid-template-columns:1fr;gap:2px}.amiao-phones{grid-template-columns:1fr;max-width:290px;margin:0 auto}.amiao-phones .phone+.phone{display:none}}

/* 案例占位 */
.case-ph{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-bottom:16px}
.case-col{padding:28px;border:2px dashed var(--line);border-radius:var(--r)}
.case-col h3{font-size:19px}
.ph{margin-top:10px;color:var(--ink-3)}
@media (max-width:640px){.case-ph{grid-template-columns:1fr}}

/* 价格 */
.price-explain{max-width:720px;margin:-20px 0 32px;color:var(--ink-2)}
.plans{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;align-items:stretch}
.plan{display:flex;flex-direction:column;gap:14px;padding:28px 24px;border-radius:var(--r);background:var(--card);border:1px solid var(--line)}
.plan.featured{border-color:var(--brand);box-shadow:0 0 0 1px var(--brand)}
.plan header h3{font-size:22px;font-weight:900}
.plan header p{color:var(--ink-2);font-size:15px}
.first{display:flex;align-items:baseline;flex-wrap:wrap;gap:6px}
.first-tag{font-size:14px;color:var(--ink-2);font-weight:700}
.first b{font-size:36px;font-weight:900;line-height:1.1}
.first small{font-size:15px;color:var(--ink-2)}
.refund-line{font-size:14px;color:var(--ok);font-weight:700;margin-top:-8px}
.cycles{display:grid;gap:6px;padding:12px 14px;border-radius:12px;background:var(--soft);font-size:15px}
.cycles div{display:grid;grid-template-columns:40px minmax(0,1fr);gap:8px;align-items:baseline}
.cycles dt{color:var(--ink-3)}
.cycles dd small{color:var(--ink-3);margin-left:2px}
.cycles dd em{display:block;font-style:normal;font-size:13px;color:var(--ink-3)}
.plan ul{display:grid;gap:6px;font-size:15px;color:var(--ink-2)}
.plan li{padding-left:20px;position:relative}
.plan li::before{content:"";position:absolute;left:2px;top:.55em;width:10px;height:6px;border-left:2px solid var(--ok);border-bottom:2px solid var(--ok);transform:rotate(-45deg)}
.plan .btn{margin-top:auto}
.opt{display:grid;gap:8px;padding-bottom:14px;border-bottom:1px solid var(--line)}
.opt:last-of-type{border-bottom:0;padding-bottom:0}
.opt-label{font-size:14px;color:var(--ink-2);font-weight:700}
.opt .first b{font-size:28px}
.price-foot{margin-top:24px;color:var(--ink-3);font-size:15px}
@media (max-width:960px){.plans{grid-template-columns:1fr;max-width:520px}}

/* FAQ */
.faq-wrap{max-width:860px}
.faq{display:grid;gap:10px}
.faq details{border:1px solid var(--line);border-radius:12px;background:var(--card);padding:0 20px}
.faq summary{cursor:pointer;padding:16px 0;font-weight:700;font-size:17px;list-style:none;display:flex;justify-content:space-between;gap:12px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";color:var(--ink-3);font-weight:400;font-size:22px;line-height:1}
.faq details[open] summary::after{content:"–"}
.faq details p{padding:0 0 18px;color:var(--ink-2);font-size:16px}
.faq [data-todo]{outline:1px dashed var(--todo);outline-offset:-1px}

/* 收尾 */
.final{padding:72px 0;background:var(--brand-soft);text-align:center}
.final-in{display:flex;flex-direction:column;align-items:center}
.final h2{font-size:clamp(24px,3vw,34px);font-weight:900}
.final p{margin-top:10px;color:var(--ink-2)}
.final .ctas{justify-content:center}
.final-aux{font-size:14px}
.guide-ph{padding:28px 0}

.foot{border-top:1px solid var(--line);padding:32px 0 calc(32px + env(safe-area-inset-bottom,0px));color:var(--ink-3);font-size:14px}
.foot-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px 28px}
.foot .logo{font-size:17px;color:var(--ink)}
.foot .logo svg{width:26px;height:26px}
.foot-links a{color:inherit}

@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}


/* ===== guides / articles ===== */
.article{max-width:820px;padding-block:48px 80px}
.article .crumb{font-size:14px;color:var(--ink-3)}
.article .crumb a{text-decoration:none}
.article h1{font-size:clamp(30px,4vw,42px);font-weight:900;line-height:1.3;margin-top:12px}
.article .meta{margin-top:10px;font-size:14px;color:var(--ink-3)}
.article .lead{margin-top:12px;font-size:18px;color:var(--ink-2)}
.article article h2{font-size:26px;margin-top:44px}
.article article h3{font-size:20px;margin-top:28px}
.article article p{margin-top:14px;font-size:17px;line-height:1.9;color:var(--ink)}
.article article ul,.article article ol{margin-top:14px;padding-left:1.4em;line-height:1.9}
.article article li{margin-top:4px}
.article article blockquote{margin:18px 0 0;padding:12px 18px;border-left:4px solid var(--brand);background:var(--brand-soft);border-radius:0 12px 12px 0;color:var(--ink-2)}
.article .tbl{margin-top:18px;overflow-x:auto;border:1px solid var(--line);border-radius:12px}
.article table{width:100%;border-collapse:collapse;min-width:520px;font-size:15px}
.article th,.article td{padding:12px 14px;border-bottom:1px solid var(--line);text-align:left}
.article th{background:var(--soft);font-weight:700}
.article-cta{margin-top:48px;padding:24px;border-radius:18px;background:var(--brand-soft);border:1px solid color-mix(in srgb,var(--brand) 25%,transparent)}
.article-cta b{font-size:19px}
.article-cta p{margin:6px 0 16px;color:var(--ink-2)}
.related{margin-top:40px}
.related h2{font-size:20px}
.related ul{margin-top:12px;padding-left:1.2em;line-height:2}
.guide-list{list-style:none;padding:0;margin-top:28px;display:flex;flex-direction:column;gap:14px}
.guide-list a{display:block;padding:20px 22px;border-radius:16px;border:1px solid var(--line);background:var(--card);text-decoration:none;transition:transform .3s,border-color .3s,box-shadow .3s}
.guide-list a:hover{transform:translateY(-4px);border-color:color-mix(in srgb,var(--brand) 40%,var(--line));box-shadow:0 18px 36px -24px rgba(16,32,64,.4)}
.guide-list b{display:block;font-size:19px}
.guide-list span{display:block;margin-top:6px;color:var(--ink-2);font-size:15px}
.logo img{border-radius:9px}
.dl-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-top:28px}
.dl-card{border:1px solid var(--line);border-radius:20px;background:var(--card);padding:28px;display:flex;flex-direction:column;gap:10px;transition:transform .35s cubic-bezier(.2,.8,.2,1),box-shadow .35s,border-color .35s}
.dl-card:hover{transform:translateY(-6px);border-color:color-mix(in srgb,var(--brand) 40%,var(--line));box-shadow:0 22px 40px -26px rgba(16,32,64,.4)}
.dl-os{align-self:flex-start;font-size:12px;font-weight:700;padding:3px 10px;border-radius:999px;background:var(--brand-soft);color:var(--brand-ink)}
.dl-card h2{margin:0;font-size:26px}
.dl-need{color:var(--ink-2);font-size:15px}
.dl-ver{font-size:14px;color:var(--ink-3)}
.dl-btn{margin-top:auto;align-self:flex-start}
.dl-notes{margin-top:18px;font-size:14px;color:var(--ink-3)}
.dl h2{margin-top:44px}
@media (max-width:760px){.dl-grid{grid-template-columns:1fr}}

/* v3: the home stylesheet resets lists; articles keep their markers */
.article article ul,.related ul{list-style:disc}.article article ol{list-style:decimal}
.article .crumb a,.related a,.article article a{color:var(--brand-ink)}
.foot-links a{text-decoration:none}.foot-links a:hover{color:var(--ink)}