/* wex 官网 —— 颜色都取自微信本身:#EDEDED 灰底、#191919 正文、#576B95 链接蓝、#95EC69 气泡绿、#07C160 品牌绿。
   招牌是「划重点」的荧光笔:标题里的关键词用 .hl 包起来,和 wex 排版模版里的高亮是同一个东西。 */
:root {
  --paper: #ffffff;
  --wx-bg: #ededed;
  --wx-bg-2: #f7f7f7;
  --ink: #191919;
  --ink-2: #4c4c4c;
  --ink-3: #7f7f7f;
  --line: #dcdcdc;
  --green: #07c160;
  --green-deep: #058c46;
  --bubble: #95ec69;
  --blue: #576b95;
  --red: #fa5151;
  --mark: #ffe066;
  --radius: 14px;
  --shadow: 0 1px 2px rgb(0 0 0 / .04), 0 12px 32px -12px rgb(0 0 0 / .18);
  --sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "HarmonyOS Sans SC", "MiSans", "Hiragino Sans GB",
    "Microsoft YaHei", "Noto Sans CJK SC", "Source Han Sans SC", sans-serif;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
  color-scheme: light;
}

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0; background: var(--paper); color: var(--ink);
  font: 16px/1.75 var(--sans); letter-spacing: .01em;
  -webkit-font-smoothing: antialiased;
}
img, video, svg { display: block; max-width: 100%; }
a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; text-underline-offset: 3px; }
:focus-visible { outline: 2.5px solid var(--green-deep); outline-offset: 2px; border-radius: 6px; }
h1, h2, h3 { line-height: 1.3; margin: 0; font-weight: 700; letter-spacing: -.01em; }
p { margin: 0; }
.wrap { width: min(1160px, 100% - 32px); margin-inline: auto; }
.skip { position: absolute; left: -999px; }
[id] { scroll-margin-top: 76px; }
.nw { white-space: nowrap; }
.skip:focus { left: 16px; top: 12px; z-index: 99; background: var(--ink); color: #fff; padding: 6px 12px; }

/* 荧光笔:背景从左往右刷过去 */
.hl {
  background: linear-gradient(transparent 58%, var(--mark) 58%, var(--mark) 92%, transparent 92%) no-repeat 0 0 / 100% 100%;
  padding: 0 .08em; box-decoration-break: clone; -webkit-box-decoration-break: clone;
}
.js .hl.sweep { background-size: 0% 100%; transition: background-size .7s cubic-bezier(.6, 0, .2, 1); }
.js .hl.sweep.on { background-size: 100% 100%; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px; justify-content: center;
  height: 48px; padding: 0 22px; border-radius: 10px; font-weight: 600; font-size: 16px;
  border: 1px solid transparent; text-decoration: none !important; white-space: nowrap;
  transition: transform .15s, background .15s;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--green-deep); color: #fff; }
.btn-primary:hover { background: #047a3c; }
.btn-ghost { border-color: var(--line); color: var(--ink); background: var(--paper); }
.btn-ghost:hover { border-color: var(--ink-3); }
.btn-sm { height: 36px; padding: 0 14px; font-size: 14px; border-radius: 8px; }
.btn svg { width: 18px; height: 18px; }

/* ---------- 顶栏 ---------- */
.site-head {
  position: sticky; top: 0; z-index: 20;
  background: rgb(237 237 237 / .86); backdrop-filter: saturate(1.6) blur(14px); -webkit-backdrop-filter: saturate(1.6) blur(14px);
  border-bottom: 1px solid rgb(0 0 0 / .06);
}
.head-row { display: flex; align-items: center; gap: 28px; height: 60px; }
.logo { display: inline-flex; align-items: center; gap: 9px; color: var(--ink); font-weight: 700; font-size: 20px; letter-spacing: 0; }
.logo:hover { text-decoration: none; }
.logo svg { width: 28px; height: 28px; }
.nav { display: flex; gap: 22px; flex: 1; }
.nav a { color: var(--ink-2); font-size: 15px; }
.nav a[aria-current="page"] { color: var(--ink); font-weight: 600; }
@media (max-width: 860px) {
  .head-row { flex-wrap: wrap; height: auto; padding-top: 10px; gap: 0 12px; }
  .head-dl { margin-left: auto; }
  .nav { order: 3; flex-basis: 100%; overflow-x: auto; gap: 18px; padding: 8px 0 10px; scrollbar-width: none; }
  .nav::-webkit-scrollbar { display: none; }
  .nav a { white-space: nowrap; }
}

/* ---------- 通用版块 ---------- */
.band { padding: clamp(64px, 9vw, 112px) 0; }
.band-gray { background: var(--wx-bg); }
.band-soft { background: var(--wx-bg-2); }
.eyebrow { font: 600 13px/1 var(--mono); letter-spacing: .08em; color: var(--green-deep); text-transform: uppercase; margin-bottom: 16px; }
.h-section { font-size: clamp(28px, 4vw, 42px); max-width: 18em; }
.lead { color: var(--ink-2); font-size: 18px; margin-top: 16px; max-width: 36em; }
.sec-head { margin-bottom: 48px; }
.more { display: inline-block; margin-top: 28px; font-weight: 600; }
.more::after { content: " →"; }

/* ---------- 首屏 ---------- */
.hero { background: var(--wx-bg); padding: clamp(40px, 7vw, 88px) 0 clamp(56px, 8vw, 96px); overflow: hidden; }
.hero-grid { display: grid; grid-template-columns: minmax(0, 1.05fr) minmax(0, 1fr); gap: 48px; align-items: center; }
.hero h1 { font-size: clamp(36px, 5.6vw, 64px); line-height: 1.2; letter-spacing: -.02em; }
.hero h1 small { display: block; font-size: .42em; font-weight: 600; color: var(--ink-2); letter-spacing: 0; margin-top: 18px; line-height: 1.5; }
.hero-sub { font-size: 18px; color: var(--ink-2); margin-top: 22px; max-width: 30em; }
.cta-row { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 32px; }
.dl-meta { margin-top: 14px; font: 13px/1.6 var(--mono); color: var(--ink-3); }

/* 「说一句」输入框 */
.prompt {
  display: flex; align-items: center; gap: 12px;
  background: var(--paper); border-radius: 18px; padding: 10px 10px 10px 18px;
  box-shadow: var(--shadow); border: 1px solid rgb(0 0 0 / .05);
  max-width: 520px; margin-inline: auto; position: relative; z-index: 3;
}
.prompt-plus { color: var(--ink-3); font-size: 22px; line-height: 1; }
.prompt-text { flex: 1; font-size: 17px; min-height: 1.75em; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.prompt-text::after { content: ""; display: inline-block; width: 2px; height: 1.1em; background: var(--green); vertical-align: -3px; margin-left: 2px; animation: caret 1s steps(1) infinite; }
.prompt-send { width: 38px; height: 38px; border-radius: 50%; background: var(--ink); display: grid; place-items: center; flex: none; }
.prompt-send svg { width: 16px; height: 16px; }
@keyframes caret { 50% { opacity: 0; } }

.phones { position: relative; height: 520px; margin-top: -10px; }
.phones .phone { position: absolute; top: 40px; left: 50%; width: 236px; transition: transform .5s cubic-bezier(.3, .7, .2, 1); }
.phones .phone:nth-child(1) { transform: translateX(-128%) rotate(-7deg) translateY(24px); }
.phones .phone:nth-child(2) { transform: translateX(-50%); z-index: 2; }
.phones .phone:nth-child(3) { transform: translateX(28%) rotate(7deg) translateY(24px); }
.phone-tag {
  position: absolute; top: -30px; left: 50%; transform: translateX(-50%); white-space: nowrap;
  font: 600 12px/1 var(--mono); background: var(--ink); color: #fff; padding: 6px 10px; border-radius: 999px;
}
.phone-tag i { font-style: normal; color: var(--bubble); }
@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; }
  .phones { height: 470px; }
}
@media (max-width: 560px) {
  .phones { height: 420px; }
  .phones .phone { width: 200px; }
  .phones .phone:nth-child(1) { transform: translateX(-112%) rotate(-7deg) translateY(30px); }
  .phones .phone:nth-child(3) { transform: translateX(12%) rotate(7deg) translateY(30px); }
}

/* ---------- 手机壳 + 微信文章 ---------- */
.phone {
  background: #111; border-radius: 34px; padding: 8px; box-shadow: 0 30px 60px -20px rgb(0 0 0 / .35);
}
.screen { background: #fff; border-radius: 27px; overflow: hidden; height: 440px; position: relative; }
.screen::before { content: ""; position: absolute; top: 8px; left: 50%; width: 70px; height: 20px; border-radius: 12px; background: #111; transform: translateX(-50%); z-index: 2; }
.screen-bar { height: 44px; background: var(--wx-bg-2); border-bottom: 1px solid #eee; }
@media (max-width: 560px) { .screen { height: 380px; } }

.wxa { --p: #2f3437; --a: #c08a3e; padding: 14px 16px 24px; font-size: 11.5px; line-height: 1.8; color: #333; }
.wxa .t { font-size: 16px; line-height: 1.4; font-weight: 700; color: var(--ink); }
.wxa .meta { margin: 8px 0 12px; font-size: 10.5px; color: var(--ink-3); }
.wxa .meta b { color: var(--blue); font-weight: 400; margin: 0 6px; }
.wxa .meta em { font-style: normal; background: #f2f2f2; padding: 1px 4px; border-radius: 2px; }
.wxa p { margin: 0 0 10px; }
.wxa strong { color: var(--p); }
.wxa .lede { font-size: 11px; color: #888; padding-bottom: 10px; border-bottom: 1px solid #eee; margin-bottom: 12px; }
.wxa h2, .wxa .h2 { font-size: 13.5px; color: var(--ink); margin: 16px 0 10px; font-weight: 700; }
.wxa blockquote { margin: 10px 0; padding: 6px 10px; font-size: 11px; color: #666; border-left: 2px solid #ccc; }
.wxa ol { margin: 0 0 10px; padding: 0; list-style: none; counter-reset: s; }
.wxa ol li { counter-increment: s; padding-left: 22px; position: relative; margin-bottom: 4px; }
.wxa ol li::before { content: counter(s, decimal-leading-zero); position: absolute; left: 0; font: 700 10px/1.9 var(--mono); color: var(--p); }
.wxa .metrics { display: grid; grid-template-columns: repeat(3, 1fr); gap: 6px; margin: 12px 0; }
.wxa .metrics div { background: color-mix(in srgb, var(--p) 7%, #fff); border-radius: 6px; padding: 6px 4px; text-align: center; font-size: 9.5px; color: #888; line-height: 1.4; }
.wxa .metrics b { display: block; font-size: 15px; color: var(--p); }
.wxa .verdict { border: 1.5px solid var(--p); border-radius: 8px; padding: 8px 10px; font-weight: 600; color: var(--ink); margin-top: 12px; }
.wxa .verdict span { display: inline-block; background: var(--p); color: #fff; font-size: 9px; padding: 1px 6px; border-radius: 3px; margin-bottom: 4px; }

/* 8 种配色 —— 和 wewrite palettes.yaml 一致 */
[data-pal="ink"]       { --p: #2f3437; --a: #c08a3e; }
[data-pal="vermilion"] { --p: #c0392b; --a: #e0a43a; }
[data-pal="bamboo"]    { --p: #2e8b57; --a: #d4a017; }
[data-pal="ocean"]     { --p: #2563eb; --a: #f59e0b; }
[data-pal="tangerine"] { --p: #e8742a; --a: #f2b134; }
[data-pal="indigo"]    { --p: #1f3a68; --a: #c9a227; }
[data-pal="amber"]     { --p: #b7791f; --a: #d9534f; }
[data-pal="plum"]      { --p: #6b4c9a; --a: #e07a9b; }

/* 6 种骨架:标题、导语、引用三处长得不一样 */
[data-skel="minimal"] h2 { text-align: center; }
[data-skel="minimal"] h2::after { content: ""; display: block; width: 24px; height: 2px; background: var(--p); margin: 6px auto 0; }

[data-skel="magazine"] h2::before { content: "PART " attr(data-n); display: block; font: 700 9px/1 var(--mono); letter-spacing: .2em; color: var(--p); margin-bottom: 6px; }
[data-skel="magazine"] h2 { font-size: 15px; }
[data-skel="magazine"] .lede { color: #555; border: 0; font-size: 11.5px; }
[data-skel="magazine"] blockquote { border: 0; padding-left: 0; }
[data-skel="magazine"] blockquote::before { content: "“"; display: block; font: 700 26px/1 Georgia, serif; color: var(--p); height: 14px; }

[data-skel="card"] h2 { display: inline-block; background: var(--p); color: #fff; padding: 3px 10px; border-radius: 4px; font-size: 12.5px; }
[data-skel="card"] .lede { border: 0; border-left: 3px solid var(--p); background: color-mix(in srgb, var(--p) 8%, #fff); padding: 8px 10px; border-radius: 0 6px 6px 0; color: #555; }
[data-skel="card"] blockquote { border: 0; background: color-mix(in srgb, var(--p) 8%, #fff); border-radius: 6px; padding: 8px 10px; }

[data-skel="journal"] h2 { display: inline-block; border: 1.5px dashed var(--a); padding: 3px 10px; }
[data-skel="journal"] h2::before { content: "✦ "; color: var(--p); }
[data-skel="journal"] .lede { border: 0; background: color-mix(in srgb, var(--a) 12%, #fff); padding: 8px 10px; border-radius: 6px; color: #666; }
[data-skel="journal"] blockquote { border: 1px solid color-mix(in srgb, var(--a) 45%, #fff); background: color-mix(in srgb, var(--a) 7%, #fff); border-radius: 6px; }

[data-skel="guofeng"] h2::before { content: attr(data-cn); display: inline-grid; place-items: center; width: 18px; height: 18px; border: 1.5px solid var(--p); color: var(--p); font-size: 10px; margin-right: 8px; vertical-align: 1px; }
[data-skel="guofeng"] h2 { border-bottom: 1px solid color-mix(in srgb, var(--p) 35%, #fff); padding-bottom: 6px; font-weight: 600; }
[data-skel="guofeng"] blockquote { border: 0; border-top: 1px solid var(--p); border-bottom: 1px solid var(--p); text-align: center; padding: 8px 4px; }

[data-skel="tech"] h2::before { content: attr(data-n); display: inline-grid; place-items: center; min-width: 20px; height: 18px; padding: 0 3px; background: var(--p); color: #fff; font: 700 9.5px/1 var(--mono); border-radius: 3px; margin-right: 8px; vertical-align: 1px; }
[data-skel="tech"] .lede { border: 0; border-left: 3px solid var(--p); padding: 4px 10px; color: #555; }
[data-skel="tech"] blockquote { border: 0; background: #1e2633; color: #e8ecf3; border-radius: 6px; padding: 8px 10px; }

/* ---------- 痛点 ---------- */
.chores { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.chore { background: var(--paper); border-radius: var(--radius); padding: 26px 24px 24px; border: 1px solid rgb(0 0 0 / .05); }
.chore h3 { font-size: 20px; }
.chore p { color: var(--ink-2); margin-top: 10px; }
.chore .handoff { display: inline-block; margin-top: 18px; font: 600 13px/1 var(--mono); color: var(--green-deep); }
@media (max-width: 860px) { .chores { grid-template-columns: 1fr; } }

/* ---------- 流程:左边是你说的话(微信气泡),右边是它做的事 ---------- */
.flow { list-style: none; margin: 0; padding: 0; position: relative; }
.flow::before { content: ""; position: absolute; left: 15px; top: 8px; bottom: 8px; width: 2px; background: var(--line); }
.flow > li { display: grid; grid-template-columns: 32px minmax(0, 300px) minmax(0, 1fr); gap: 20px 28px; align-items: start; padding: 22px 0; position: relative; }
.flow .n { width: 32px; height: 32px; border-radius: 50%; background: var(--ink); color: #fff; display: grid; place-items: center; font: 700 13px/1 var(--mono); position: relative; }
.bubble { justify-self: start; background: var(--bubble); color: #111; padding: 10px 14px; border-radius: 8px; font-size: 16px; position: relative; max-width: 100%; }
.bubble::before { content: ""; position: absolute; left: -6px; top: 13px; border: 6px solid transparent; border-left: 0; border-right-color: var(--bubble); }
.bubble small { display: block; font: 11px/1.3 var(--mono); color: rgb(0 0 0 / .5); margin-bottom: 2px; }
.flow h3 { font-size: 19px; }
.flow .does p { color: var(--ink-2); margin-top: 6px; }
@media (max-width: 760px) {
  .flow > li { grid-template-columns: 32px minmax(0, 1fr); gap: 12px 16px; }
  .flow .does { grid-column: 2; }
}

/* ---------- 演示视频 ---------- */
.demo { display: grid; grid-template-columns: minmax(0, 1fr) 320px; gap: 56px; align-items: center; }
.demo-frame { background: #111; border-radius: 30px; padding: 8px; box-shadow: var(--shadow); }
.demo-frame video { border-radius: 23px; width: 100%; aspect-ratio: 9 / 16; background: #000; }
.demo ul { margin: 24px 0 0; padding: 0; list-style: none; }
.demo li { padding: 10px 0; border-top: 1px solid var(--line); color: var(--ink-2); }
.demo li b { color: var(--ink); }
@media (max-width: 860px) { .demo { grid-template-columns: 1fr; } .demo-frame { max-width: 320px; margin-inline: auto; } }

/* ---------- 排版切换器 ---------- */
.tpl-lab { display: grid; grid-template-columns: minmax(0, 1fr) 300px; gap: 56px; align-items: center; }
.tpl-ctrl fieldset { border: 0; padding: 0; margin: 0 0 22px; }
.tpl-ctrl legend { font: 600 13px/1 var(--mono); color: var(--ink-3); margin-bottom: 12px; letter-spacing: .06em; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip {
  font: inherit; font-size: 14px; border: 1px solid var(--line); background: var(--paper); color: var(--ink);
  height: 36px; padding: 0 14px; border-radius: 999px; cursor: pointer; display: inline-flex; align-items: center; gap: 7px;
}
.chip:hover { border-color: var(--ink-3); }
.chip[aria-pressed="true"] { background: var(--ink); border-color: var(--ink); color: #fff; }
.chip .sw { width: 12px; height: 12px; border-radius: 50%; background: var(--p); }
.tpl-name { font: 600 14px/1.4 var(--mono); color: var(--ink-2); margin-top: 6px; }
.tpl-name b { color: var(--ink); }
.tpl-lab .phone { width: 300px; justify-self: center; }
.tpl-lab .screen { height: 560px; }
.tpl-lab .wxa { font-size: 12.5px; }
.tpl-lab .wxa .t { font-size: 18px; }
@media (max-width: 860px) { .tpl-lab { grid-template-columns: 1fr; } }

/* ---------- 多号隔离 ---------- */
.iso { display: grid; grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 56px; align-items: center; }
.win { background: var(--paper); border-radius: 12px; box-shadow: var(--shadow); overflow: hidden; border: 1px solid rgb(0 0 0 / .06); }
.win + .win { margin-top: 16px; }
.win-bar { display: flex; align-items: center; gap: 10px; padding: 10px 14px; background: var(--wx-bg-2); border-bottom: 1px solid #e5e5e5; font-size: 13px; flex-wrap: wrap; }
.dots { display: flex; gap: 6px; }
.dots i { width: 10px; height: 10px; border-radius: 50%; background: #ddd; }
.dots i:nth-child(1) { background: #ff5f57; } .dots i:nth-child(2) { background: #febc2e; } .dots i:nth-child(3) { background: #28c840; }
.pill { font: 12px/1 var(--mono); padding: 5px 8px; border-radius: 6px; background: #fff; border: 1px solid #e3e3e3; color: var(--ink-2); white-space: nowrap; }
.pill.ok { color: var(--green-deep); border-color: color-mix(in srgb, var(--green) 40%, #fff); }
.pill.bad { color: #fff; background: var(--red); border-color: var(--red); }
.win-body { padding: 18px; display: grid; grid-template-columns: 150px 1fr; gap: 16px; font-size: 13px; }
.acct-list { display: grid; gap: 4px; }
.acct-list span { padding: 6px 8px; border-radius: 6px; color: var(--ink-2); display: flex; align-items: center; gap: 8px; }
.acct-list span::before { content: attr(data-i); width: 20px; height: 20px; border-radius: 5px; background: #e8e8e8; color: var(--ink-2); display: grid; place-items: center; font-size: 11px; flex: none; }
.acct-list .on { background: var(--wx-bg); color: var(--ink); font-weight: 600; }
.acct-list .on::before { background: var(--green); color: #fff; }
.skel-lines { display: grid; gap: 8px; align-content: start; }
.skel-lines i { height: 9px; border-radius: 5px; background: #eee; }
.skel-lines i:nth-child(1) { width: 60%; height: 12px; background: #ddd; }
.skel-lines i:nth-child(3) { width: 85%; } .skel-lines i:nth-child(5) { width: 70%; }
.ticks { list-style: none; padding: 0; margin: 0; }
.ticks li { padding: 9px 0 9px 28px; position: relative; color: var(--ink-2); }
.ticks li::before { content: ""; position: absolute; left: 2px; top: 16px; width: 12px; height: 7px; border-left: 2px solid var(--green-deep); border-bottom: 2px solid var(--green-deep); transform: rotate(-45deg); }
.ticks li strong { color: var(--ink); }
@media (max-width: 860px) { .iso { grid-template-columns: 1fr; } .win-body { grid-template-columns: 1fr; } .acct-list { grid-template-columns: repeat(3, 1fr); } }

/* ---------- 其他能力 ---------- */
.caps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: var(--radius); overflow: hidden; }
.cap { background: var(--paper); padding: 26px 24px; }
.cap h3 { font-size: 18px; }
.cap p { color: var(--ink-2); margin-top: 8px; font-size: 15px; }
.cap .say { display: inline-block; margin-top: 14px; font-size: 13px; background: var(--bubble); padding: 3px 9px; border-radius: 5px; color: #111; }
@media (max-width: 860px) { .caps { grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px) { .caps { grid-template-columns: 1fr; } }

/* ---------- 价格 ---------- */
.price-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 360px)); gap: 20px; }
.price-card { background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius); padding: 30px 28px; display: flex; flex-direction: column; }
.price-card h3 { font-size: 18px; }
.price { font-size: 52px; font-weight: 700; letter-spacing: -.02em; margin: 10px 0 14px; line-height: 1.1; }
.price .cur { font-size: 24px; margin-right: 2px; vertical-align: 18px; }
.price-card .ticks { margin-bottom: 24px; flex: 1; }
.price-note { color: var(--ink-3); font-size: 14px; margin-bottom: 18px; }
.strip { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 24px; background: var(--paper); border-radius: var(--radius); padding: 28px 32px; border: 1px solid rgb(0 0 0 / .05); }
.strip .big { font-size: 30px; font-weight: 700; }
.strip .big small { font-size: 16px; color: var(--ink-2); font-weight: 400; margin-left: 10px; }

/* ---------- 问答 ---------- */
.faq { border-top: 1px solid var(--line); }
.qa { border-bottom: 1px solid var(--line); }
.qa summary { list-style: none; cursor: pointer; padding: 20px 40px 20px 0; position: relative; }
.qa summary::-webkit-details-marker { display: none; }
.qa summary h3 { font-size: 18px; font-weight: 600; }
.qa summary::after { content: ""; position: absolute; right: 6px; top: 27px; width: 9px; height: 9px; border-right: 2px solid var(--ink-3); border-bottom: 2px solid var(--ink-3); transform: rotate(45deg); transition: transform .2s; }
.qa[open] summary::after { transform: rotate(-135deg); top: 31px; }
.qa p { padding: 0 0 22px; color: var(--ink-2); max-width: 46em; }

/* ---------- 结尾行动 ---------- */
.final { background: var(--ink); color: #fff; text-align: center; }
.final h2 { font-size: clamp(28px, 4.4vw, 46px); }
.final .hl { background-image: linear-gradient(transparent 82%, rgb(255 224 102 / .7) 82%, rgb(255 224 102 / .7) 96%, transparent 96%); }
.final p { color: #b3b3b3; margin-top: 14px; }
.final .cta-row { justify-content: center; }
.final .btn-primary { background: var(--green); color: #052e16; }
.final .btn-primary:hover { background: #12d16f; }
.final .dl-meta { color: #8c8c8c; }

/* ---------- 子页 ---------- */
.page-hero { background: var(--wx-bg); padding: clamp(48px, 7vw, 88px) 0 clamp(40px, 6vw, 64px); }
.page-hero h1 { font-size: clamp(32px, 4.6vw, 52px); max-width: 16em; }
.crumbs { font-size: 14px; color: var(--ink-3); margin-bottom: 18px; }
.crumbs a { color: var(--ink-3); }
.prose > * { max-width: 760px; }
.price-wrap { display: grid; grid-template-columns: minmax(0, 360px) minmax(0, 1fr); gap: 56px; align-items: center; }
.price-wrap .price-grid { grid-template-columns: 1fr; }
.price-aside h2 { font-size: 24px; margin-bottom: 8px; }
@media (max-width: 760px) { .price-wrap { grid-template-columns: 1fr; } }
.prose h2 { font-size: 28px; margin: 56px 0 16px; }
.prose h2:first-child { margin-top: 0; }
.prose h3 { font-size: 20px; margin: 32px 0 10px; }
.prose p, .prose li { color: var(--ink-2); }
.prose p + p { margin-top: 14px; }
.prose ul, .prose ol { padding-left: 1.3em; }
.prose li { margin: 6px 0; }
.prose strong { color: var(--ink); }
.prose code, .cmd code { font: 14px/1.6 var(--mono); background: var(--wx-bg); padding: 2px 6px; border-radius: 5px; color: var(--ink); }
.steps { list-style: none; padding: 0 !important; counter-reset: st; }
.steps > li { counter-increment: st; position: relative; padding: 4px 0 26px 52px !important; margin: 0 !important; }
.steps > li::before { content: counter(st); position: absolute; left: 0; top: 2px; width: 34px; height: 34px; border-radius: 50%; background: var(--ink); color: #fff; display: grid; place-items: center; font: 700 14px/1 var(--mono); }
.steps > li h3 { margin: 4px 0 6px; font-size: 19px; color: var(--ink); }
.cmd { display: flex; align-items: center; gap: 10px; background: #1b1b1b; color: #eaeaea; border-radius: 10px; padding: 12px 14px; margin-top: 12px; overflow-x: auto; }
.cmd code { background: none; color: #eaeaea; white-space: nowrap; flex: 1; padding: 0; }
.cmd button { flex: none; font: 600 13px/1 var(--sans); background: #333; color: #fff; border: 0; border-radius: 6px; padding: 8px 10px; cursor: pointer; }
.note { background: #fff8e1; border: 1px solid #f5e3a6; border-radius: 10px; padding: 14px 16px; color: #5c4a12; font-size: 15px; margin-top: 16px; }
.dl-card { display: grid; grid-template-columns: auto 1fr; gap: 24px 28px; align-items: center; background: var(--paper); border-radius: 18px; padding: 28px; box-shadow: var(--shadow); max-width: 760px; margin-top: 36px; }
.dl-card img { width: 88px; height: 88px; border-radius: 20px; }
.dl-card h2 { font-size: 22px; }
.dl-card .dl-meta { margin-top: 6px; }
.dl-card .cta-row { grid-column: 1 / -1; margin-top: 0; }
.spec { width: 100%; border-collapse: collapse; margin-top: 8px; font-size: 15px; }
.spec th, .spec td { text-align: left; padding: 12px 0; border-bottom: 1px solid var(--line); vertical-align: top; }
.spec th { width: 32%; color: var(--ink-3); font-weight: 500; }
.figure { margin: 28px 0 0; }
.figure img { border-radius: 12px; border: 1px solid var(--line); }
.figure figcaption { font-size: 14px; color: var(--ink-3); margin-top: 10px; }
.two { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 20px; }
.two > div { background: var(--wx-bg-2); border-radius: 12px; padding: 20px; }
.two h3 { margin-top: 0 !important; font-size: 17px !important; }
@media (max-width: 640px) { .two { grid-template-columns: 1fr; } .dl-card { grid-template-columns: 1fr; } }

/* ---------- 页脚 ---------- */
.site-foot { background: var(--wx-bg); padding: 56px 0 28px; font-size: 14px; color: var(--ink-2); }
.foot-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: 32px; }
.foot-grid h2 { font-size: 13px; color: var(--ink-3); font-weight: 600; margin-bottom: 12px; }
.foot-grid nav a { display: block; color: var(--ink-2); padding: 3px 0; }
.foot-brand p { margin-top: 12px; max-width: 22em; }
.foot-base { display: flex; flex-wrap: wrap; gap: 8px 24px; margin-top: 40px; padding-top: 20px; border-top: 1px solid var(--line); color: var(--ink-3); font-size: 13px; }
.foot-base a { color: var(--ink-3); }
@media (max-width: 760px) { .foot-grid { grid-template-columns: 1fr 1fr; } .foot-brand { grid-column: 1 / -1; } }

/* ---------- 入场 ---------- */
.js .rise { opacity: 0; transform: translateY(16px); transition: opacity .6s, transform .6s cubic-bezier(.3, .7, .2, 1); }
.js .rise.on { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .js .rise { opacity: 1; transform: none; }
  .js .hl.sweep { background-size: 100% 100%; }
}