/* 国际站样式（不依赖框架）。颜色都在 :root 里，深色模式只换这些变量。 */
:root{
  --bg:#f6f8fc;--surface:#fff;--surface-2:#eef3fb;--surface-3:#e4ecf9;
  --ink:#1e2d4f;--ink-2:#475569;--ink-3:#64748b;--line:#e2e8f2;
  --brand:#4a71d6;--brand-2:#5f9bf7;--brand-ink:#3557b7;--brand-soft:#e7effd;
  --ok:#16a34a;--warn:#b45309;
  --shadow:0 1px 2px rgba(30,45,79,.06),0 8px 28px rgba(30,45,79,.08);
  --shadow-lg:0 2px 6px rgba(30,45,79,.06),0 24px 60px rgba(30,45,79,.16);
  --radius:18px;--wrap:1120px;
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
  color-scheme:light;
}
@media (prefers-color-scheme:dark){
  :root{
    --bg:#0e1422;--surface:#151d30;--surface-2:#1b2540;--surface-3:#22304f;
    --ink:#e8edf7;--ink-2:#b6c1d6;--ink-3:#8e9ab2;--line:#26324c;
    --brand:#7ea6ff;--brand-2:#8fb4ff;--brand-ink:#a9c3ff;--brand-soft:#1e2b4a;
    --shadow:0 1px 2px rgba(0,0,0,.3),0 8px 28px rgba(0,0,0,.28);
    --shadow-lg:0 2px 6px rgba(0,0,0,.3),0 24px 60px rgba(0,0,0,.45);
    color-scheme:dark;
  }
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-padding-top:84px}
body{margin:0;background:var(--bg);color:var(--ink);font:16px/1.65 var(--font);-webkit-font-smoothing:antialiased;overflow-x:hidden}
:lang(zh-Hant) body,body:lang(zh-Hant){font-family:-apple-system,BlinkMacSystemFont,"PingFang TC","Noto Sans TC","Microsoft JhengHei","Segoe UI",Roboto,sans-serif;line-height:1.75}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand-ink);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3{line-height:1.25;margin:0 0 .5em;letter-spacing:-.01em}
h1{font-size:clamp(2rem,4.6vw,3.25rem);font-weight:800}
h2{font-size:clamp(1.5rem,3vw,2.125rem);font-weight:750}
h3{font-size:1.125rem;font-weight:700}
p{margin:0 0 1em}
code{font:.9em/1.4 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;background:var(--surface-2);border:1px solid var(--line);border-radius:6px;padding:.08em .38em}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 20px}
.skip{position:absolute;left:-999px;top:8px;background:var(--surface);padding:8px 14px;border-radius:10px;z-index:100}
.skip:focus{left:12px}
.muted{color:var(--ink-3)}
.center{text-align:center}

/* ── 顶栏 ── */
.hd{position:sticky;top:0;z-index:40;background:color-mix(in srgb,var(--bg) 82%,transparent);backdrop-filter:saturate(1.6) blur(14px);-webkit-backdrop-filter:saturate(1.6) blur(14px);border-bottom:1px solid color-mix(in srgb,var(--line) 70%,transparent)}
.hd-in{display:flex;align-items:center;gap:16px;height:64px}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);font-weight:800;font-size:1.125rem;letter-spacing:-.01em;flex-shrink:0}
.brand:hover{text-decoration:none}
.brand img{width:34px;height:34px;border-radius:10px}
.brand small{font-weight:600;color:var(--ink-3);font-size:.8rem;margin-left:2px}
.nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav a{color:var(--ink-2);font-weight:550;font-size:.95rem;padding:8px 12px;border-radius:10px}
.nav a:hover{background:var(--surface-2);color:var(--ink);text-decoration:none}
.nav a[aria-current=page]{color:var(--brand-ink);background:var(--brand-soft)}
.hd-act{display:flex;align-items:center;gap:8px}
.lang{position:relative}
.lang summary{list-style:none;cursor:pointer;display:flex;align-items:center;gap:6px;padding:8px 10px;border-radius:10px;color:var(--ink-2);font-size:.9rem;font-weight:550}
.lang summary::-webkit-details-marker{display:none}
.lang summary:hover{background:var(--surface-2)}
.lang summary svg{width:18px;height:18px}
.lang ul{position:absolute;right:0;top:calc(100% + 6px);margin:0;padding:6px;list-style:none;background:var(--surface);border:1px solid var(--line);border-radius:14px;box-shadow:var(--shadow-lg);min-width:170px}
.lang li a{display:block;padding:8px 12px;border-radius:9px;color:var(--ink);font-size:.95rem}
.lang li a:hover{background:var(--surface-2);text-decoration:none}
.lang li a[aria-current=true]{color:var(--brand-ink);font-weight:650}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:12px;padding:10px 18px;font-weight:650;font-size:.95rem;border:1px solid transparent;cursor:pointer;white-space:nowrap}
.btn:hover{text-decoration:none}
.btn-pri{background:var(--brand);color:#fff;box-shadow:0 6px 18px color-mix(in srgb,var(--brand) 35%,transparent)}
.btn-pri:hover{filter:brightness(1.06)}
@media (prefers-color-scheme:dark){.btn-pri{color:#0e1422}}
.menu-btn{display:none;background:none;border:0;padding:8px;border-radius:10px;color:var(--ink);cursor:pointer}
.menu-btn svg{width:24px;height:24px;display:block}
@media (max-width:860px){
  .menu-btn{display:block}
  .nav{position:absolute;left:0;right:0;top:64px;flex-direction:column;align-items:stretch;gap:2px;padding:10px 16px 16px;background:var(--bg);border-bottom:1px solid var(--line);box-shadow:var(--shadow);display:none;margin:0}
  .nav.open{display:flex}
  .nav a{padding:12px 14px;font-size:1rem}
  .hd-act{margin-left:auto}
  .hd-act .btn{display:none}
}

/* ── 语言提示条 ── */
.lb{display:none;background:var(--brand-soft);border-bottom:1px solid var(--line);font-size:.92rem}
.lb.show{display:block}
.lb .wrap{display:flex;align-items:center;gap:12px;padding-top:10px;padding-bottom:10px;flex-wrap:wrap}
.lb a{font-weight:650}
.lb button{margin-left:auto;background:none;border:0;color:var(--ink-3);cursor:pointer;font-size:1.25rem;line-height:1;padding:2px 6px}

/* ── 商店徽章 ── */
.badges{display:flex;flex-wrap:wrap;align-items:center;gap:12px}
.badge{display:inline-block;line-height:0;border-radius:10px;transition:transform .15s}
.badge:hover{transform:translateY(-1px)}
.badge img{height:52px;width:auto}
.badge-off{position:relative;opacity:.55;cursor:default}
.badge-off:hover{transform:none}
.badge-off span{position:absolute;right:-6px;top:-10px;background:var(--ink);color:var(--bg);font-size:.7rem;font-weight:700;line-height:1;padding:5px 8px;border-radius:999px;letter-spacing:.02em}

/* ── 手机截图 ── */
.phone{margin:0;border-radius:11.5%/5.3%;overflow:hidden;background:var(--surface);box-shadow:var(--shadow-lg);border:1px solid color-mix(in srgb,var(--ink) 10%,transparent);aspect-ratio:1320/2868}
.phone img{width:100%;height:100%;object-fit:cover}
.tablet{margin:0;border-radius:2.4%;overflow:hidden;box-shadow:var(--shadow-lg);border:1px solid color-mix(in srgb,var(--ink) 10%,transparent);background:var(--surface)}
figure figcaption{font-size:.9rem;color:var(--ink-3);margin-top:12px;text-align:center}

/* ── 首页 ── */
.hero{position:relative;padding:56px 0 64px;overflow:hidden}
.hero::before{content:"";position:absolute;inset:-20% -10% auto auto;width:70%;height:120%;background:radial-gradient(closest-side,color-mix(in srgb,var(--brand-2) 22%,transparent),transparent);pointer-events:none}
.hero-in{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:.85rem;font-weight:700;color:var(--brand-ink);background:var(--brand-soft);padding:6px 12px;border-radius:999px;margin-bottom:18px}
.hero h1{margin-bottom:18px}
.lead{font-size:1.15rem;color:var(--ink-2);max-width:36em}
.hero .badges{margin-top:28px}
.hero-note{margin-top:14px;font-size:.92rem;color:var(--ink-3)}
.hero-art{position:relative;height:560px}
.hero-art .phone{position:absolute;width:250px}
.hero-art .p1{right:170px;top:10px;z-index:2}
.hero-art .p2{right:0;top:70px;transform:rotate(3deg);opacity:.98}
@media (max-width:960px){
  .hero{padding:36px 0 48px}
  .hero-in{grid-template-columns:1fr;gap:36px}
  .hero-art{height:auto;display:flex;justify-content:center;gap:16px}
  .hero-art .phone{position:static;width:min(44vw,230px);transform:none}
  .hero-art .p2{margin-top:36px}
}
.sec{padding:72px 0}
.sec-alt{background:var(--surface)}
.sec-hd{max-width:720px;margin:0 auto 40px;text-align:center}
.sec-hd p{color:var(--ink-2);font-size:1.075rem}
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;counter-reset:s;list-style:none;margin:0;padding:0}
.steps li{background:var(--bg);border:1px solid var(--line);border-radius:var(--radius);padding:26px}
.sec:not(.sec-alt) .steps li{background:var(--surface)}
.steps li::before{counter-increment:s;content:counter(s);display:grid;place-items:center;width:36px;height:36px;border-radius:12px;background:var(--brand);color:#fff;font-weight:800;margin-bottom:14px}
@media (prefers-color-scheme:dark){.steps li::before{color:#0e1422}}
.steps p{color:var(--ink-2);margin:0}
.rows{display:flex;flex-direction:column;gap:88px}
.row{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.row:nth-child(even) .row-art{order:2}
.row-wide{grid-template-columns:1.45fr 1fr;gap:44px}
.row-art{display:flex;justify-content:center}
.row-art .phone{width:min(300px,70vw)}
.row-art .tablet{width:100%}
.row-txt p{color:var(--ink-2);font-size:1.05rem}
.checks{list-style:none;padding:0;margin:0 0 1em}
.checks li{position:relative;padding-left:30px;margin:.55em 0;color:var(--ink)}
.checks li::before{content:"";position:absolute;left:0;top:.28em;width:20px;height:20px;border-radius:7px;background:var(--brand-soft) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='none' stroke='%234a71d6' stroke-width='2.4' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M5.5 10.5l3 3 6-7'/%3E%3C/svg%3E") center/14px no-repeat}
.more{font-weight:650}
.more::after{content:" →"}
@media (max-width:860px){
  .rows{gap:64px}
  .row{grid-template-columns:1fr;gap:28px}
  .row:nth-child(even) .row-art{order:0}
}
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:24px}
.sec-alt .card{background:var(--bg)}
.card p{color:var(--ink-2);margin:0}
@media (max-width:860px){.cards,.steps{grid-template-columns:1fr}}
@media (min-width:600px) and (max-width:860px){.cards{grid-template-columns:1fr 1fr}}
.tbl-wrap{overflow-x:auto;-webkit-overflow-scrolling:touch;border:1px solid var(--line);border-radius:var(--radius);background:var(--surface)}
table{border-collapse:collapse;width:100%;font-size:.95rem}
th,td{padding:14px 16px;text-align:left;vertical-align:top;border-bottom:1px solid var(--line)}
tr:last-child td{border-bottom:0}
thead th{background:var(--surface-2);font-weight:700;color:var(--ink)}
.plan td:first-child{font-weight:650;white-space:nowrap}
.plan th:nth-child(3),.plan td:nth-child(3){background:color-mix(in srgb,var(--brand-soft) 60%,transparent)}
.note{font-size:.92rem;color:var(--ink-3);margin-top:16px}
.tiles{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.tile{padding:22px;border-radius:var(--radius);background:var(--surface);border:1px solid var(--line)}
.tile p{color:var(--ink-2);margin:0;font-size:.95rem}
@media (max-width:960px){.tiles{grid-template-columns:1fr 1fr}}
@media (max-width:520px){.tiles{grid-template-columns:1fr}}
.cta{padding:64px 0}
.cta-box{border-radius:28px;padding:48px 32px;text-align:center;background:linear-gradient(135deg,#4a71d6,#6a62e6);color:#fff;box-shadow:var(--shadow-lg)}
.cta-box h2{color:#fff}
.cta-box p{color:rgba(255,255,255,.85);font-size:1.075rem}
.cta-box .badges{justify-content:center;margin-top:24px}
.cta-box .badge-off span{background:#fff;color:#1e2d4f}

/* ── FAQ ── */
.faq{max-width:820px;margin:0 auto}
.faq details{background:var(--surface);border:1px solid var(--line);border-radius:14px;margin:10px 0}
.sec-alt .faq details{background:var(--bg)}
.faq summary{cursor:pointer;list-style:none;padding:18px 52px 18px 20px;font-weight:650;position:relative}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"";position:absolute;right:20px;top:50%;width:10px;height:10px;border-right:2px solid var(--ink-3);border-bottom:2px solid var(--ink-3);transform:translateY(-70%) rotate(45deg);transition:transform .2s}
.faq details[open] summary::after{transform:translateY(-30%) rotate(-135deg)}
.faq .a{padding:0 20px 18px;color:var(--ink-2)}
.faq .a p:last-child{margin:0}
.faq h2{font-size:1.25rem;margin:40px 0 12px}
.faq h2:first-child{margin-top:0}

/* ── 内页 ── */
.page-hd{padding:48px 0 24px}
.page-hd h1{font-size:clamp(1.9rem,4vw,2.75rem)}
.crumbs{font-size:.88rem;color:var(--ink-3);margin-bottom:14px}
.crumbs a{color:var(--ink-3)}
.prose{max-width:760px}
.prose h2{margin-top:2.2em}
.prose ul{padding-left:1.25em}
.prose li{margin:.45em 0}
.prose .summary{background:var(--brand-soft);border-radius:14px;padding:16px 20px;color:var(--ink)}
.feat-groups{display:flex;flex-direction:column;gap:28px;padding-bottom:24px}
.feat{display:grid;grid-template-columns:210px 1fr;gap:40px;align-items:start;background:var(--surface);border:1px solid var(--line);border-radius:24px;padding:32px}
.feat .phone{width:100%;max-width:210px}
.feat h2{font-size:1.5rem}
@media (max-width:760px){.feat{grid-template-columns:1fr;padding:24px;gap:24px}.feat .phone{max-width:220px;margin:0 auto}}

/* 教程：左边目录、右边正文 */
.doc{display:grid;grid-template-columns:220px minmax(0,1fr);gap:48px;align-items:start;padding-bottom:40px}
.toc{position:sticky;top:88px;font-size:.92rem}
.toc p{font-weight:700;color:var(--ink-3);text-transform:uppercase;letter-spacing:.06em;font-size:.75rem;margin-bottom:8px}
.toc ol{list-style:none;margin:0;padding:0;border-left:2px solid var(--line)}
.toc a{display:block;padding:6px 14px;color:var(--ink-2);margin-left:-2px;border-left:2px solid transparent}
.toc a:hover{color:var(--ink);border-left-color:var(--ink-3);text-decoration:none}
.doc-body{min-width:0}
.doc-body>section{padding-top:8px;margin-bottom:56px}
.doc-body h2{font-size:1.65rem}
.doc-body ul{padding-left:1.2em}
.doc-body li{margin:.5em 0}
.shots{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,260px));gap:28px;justify-content:center;margin:28px 0}
.shots .phone{width:100%}
.dl{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin:20px 0}
.dl .card{display:flex;flex-direction:column}
.dl .card p{flex:1;margin-bottom:16px;font-size:.95rem}
.dl .btn{align-self:flex-start;background:var(--surface-2);color:var(--ink);border-color:var(--line)}
.dl .btn:hover{background:var(--surface-3)}
pre.sample{background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:18px 20px;overflow-x:auto;font:.9rem/1.6 ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;white-space:pre}
.ex-tbl td,.ex-tbl th{white-space:nowrap;font-size:.88rem;padding:10px 12px}
.ex-tbl td:first-child{white-space:normal;min-width:220px}
.ex-tbl td:nth-child(8){white-space:normal;min-width:200px}
.tag{display:inline-block;font-size:.78rem;font-weight:700;padding:2px 8px;border-radius:999px;background:var(--surface-2);color:var(--ink-2)}
.tag-free{background:color-mix(in srgb,var(--ok) 14%,transparent);color:var(--ok)}
.tag-full{background:var(--brand-soft);color:var(--brand-ink)}
.tag-pts{background:color-mix(in srgb,#8b5cf6 16%,transparent);color:#7c3aed}
@media (prefers-color-scheme:dark){.tag-free{color:#4ade80}.tag-pts{color:#c4b5fd}}
@media (max-width:960px){
  .doc{grid-template-columns:1fr;gap:12px}
  .toc{position:static;background:var(--surface);border:1px solid var(--line);border-radius:14px;padding:14px 16px}
  .toc ol{border:0;display:flex;flex-wrap:wrap;gap:6px}
  .toc a{border:1px solid var(--line);border-radius:999px;padding:5px 12px;margin:0}
  .dl{grid-template-columns:1fr}
}
.support-mail{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin:18px 0 22px}
.support-mail a.btn{font-size:1rem}

/* ── 落地页 / 关于 / 隐私 ── */
.uc-hero{position:relative;padding:40px 0 24px;overflow:hidden}
.uc-hero::before{content:"";position:absolute;inset:-30% -10% auto auto;width:60%;height:130%;background:radial-gradient(closest-side,color-mix(in srgb,var(--brand-2) 18%,transparent),transparent);pointer-events:none}
.uc-in{position:relative;display:grid;grid-template-columns:1.2fr .8fr;gap:48px;align-items:center}
.uc-hero h1{font-size:clamp(1.9rem,4vw,2.9rem)}
.uc-hero .badges{margin-top:24px}
.uc-art{display:flex;justify-content:center}
.uc-art .phone{width:min(280px,64vw)}
.uc-sec{padding:44px 0 0}
.uc-sec>h2{margin-bottom:20px}
.steps-4{grid-template-columns:repeat(4,1fr)}
.when{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.guides{grid-template-columns:repeat(auto-fit,minmax(220px,1fr))}
a.card{color:inherit;text-decoration:none;transition:border-color .15s,transform .15s}
a.card:hover{border-color:var(--brand);transform:translateY(-2px)}
a.card h3{color:var(--brand-ink)}
.facts th{width:30%;background:var(--surface-2);font-weight:650;white-space:nowrap}
.prose .summary ul{margin:.5em 0 0}
.doc-body.prose{max-width:none}
@media (max-width:960px){.steps-4{grid-template-columns:1fr 1fr}}
@media (max-width:760px){.uc-in{grid-template-columns:1fr;gap:28px}.when{grid-template-columns:1fr}.facts th{white-space:normal}}
@media (max-width:520px){.steps-4{grid-template-columns:1fr}}

/* ── 页脚 ── */
.ft{border-top:1px solid var(--line);background:var(--surface);padding:48px 0 32px;margin-top:24px;font-size:.93rem}
.ft-in{display:grid;grid-template-columns:1.5fr repeat(4,1fr);gap:28px}
.ft p{color:var(--ink-3)}
.ft h3{font-size:.8rem;text-transform:uppercase;letter-spacing:.07em;color:var(--ink-3);margin-bottom:12px}
.ft ul{list-style:none;margin:0;padding:0}
.ft li{margin:8px 0}
.ft li a{color:var(--ink-2)}
.ft-bottom{margin-top:36px;padding-top:20px;border-top:1px solid var(--line);color:var(--ink-3);display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between}
@media (max-width:860px){.ft-in{grid-template-columns:1fr 1fr}.ft-in>div:first-child{grid-column:1/-1}}
.nf{padding:80px 0;text-align:center}
.nf ul{list-style:none;padding:0;display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-top:24px}
@media (max-width:520px){.wrap{padding:0 16px}.sec{padding:56px 0}.cta-box{padding:40px 20px;border-radius:22px}.badge img{height:46px}}
@media (prefers-reduced-motion:reduce){*{transition:none!important;scroll-behavior:auto!important}}
.doc-body.prose>section{margin-bottom:28px}
.doc-body.prose h2{margin-top:1.2em}