/* ==========================================================================
   囧次元 · jcydmgw.net.cn
   渲染语言：第 38 种「叠页卡片与页码角标」
   底 绢纸粉灰 #F3EBE8 / 主 赭红陶土 #B4452E / 辅 深墨蓝 #1F3350 / 点缀 湖松绿 #2E8F7A
   ========================================================================== */

:root {
  --paper: #F3EBE8;
  --paper2: #EBE0DC;
  --card: #FFFFFF;
  --ink: #17202E;
  --ink2: #101822;
  --line: #DECFC9;
  --line2: #E9DED9;

  --core: #B4452E;
  --core-d: #8C3020;
  --core-l: #F7E5E0;

  --navy: #1F3350;
  --navy-d: #142338;
  --navy-l: #E4E9F1;

  --green: #2E8F7A;
  --green-l: #E3F2EE;

  --amber: #E0A03A;

  --txt: #2A2622;
  --txt2: #5C554F;
  --txt3: #857C74;

  --sans: "PingFang SC", "Microsoft YaHei", "Hiragino Sans GB", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
  --serif: "Songti SC", "SimSun", Georgia, serif;

  --r: 10px;
  --wrap: 1180px;
  --head-h: 66px;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--txt);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.78;
}

img { max-width: 100%; height: auto; display: block; }

a { color: var(--core-d); text-decoration: none; }
a:hover { color: var(--core); text-decoration: underline; }

/* ── 入场动效：纯 CSS keyframes，与滚动位置无关 ──────────────────────────── */
@keyframes folioIn {
  from { transform: translateY(10px) scale(.994); }
  to   { transform: none; }
}
.fx { animation: folioIn .5s cubic-bezier(.22,.68,.32,1) both; }
@media (prefers-reduced-motion: reduce) {
  .fx { animation: none; transform: none; }
}

/* ── 顶栏 ────────────────────────────────────────────────────────────── */
.top {
  position: sticky; top: 0; z-index: 60;
  background: rgba(243, 235, 232, .96);
  border-bottom: 1px solid var(--line);
}
.top__in {
  max-width: var(--wrap); margin: 0 auto; padding: 0 22px;
  min-height: var(--head-h);
  display: flex; align-items: center; gap: 18px;
}
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.brand img { width: 38px; height: 38px; border-radius: 9px; }
.brand__txt { display: flex; flex-direction: column; }
.brand b {
  font-size: 19px; letter-spacing: .06em; color: var(--ink);
  font-weight: 700;
}
.brand i {
  font-style: normal; font-size: 11px; color: var(--txt3);
  letter-spacing: .14em; line-height: 1; margin-top: 4px;
}
.brand:hover { text-decoration: none; }
.brand:hover b { color: var(--core-d); }

.nav { margin-left: auto; display: flex; align-items: center; gap: 4px; }
.nav a {
  display: block; padding: 8px 12px; border-radius: 6px;
  font-size: 15px; color: var(--navy-d); white-space: nowrap;
}
.nav a:hover { background: var(--paper2); color: var(--core-d); text-decoration: none; }
.nav a[aria-current="page"] { color: var(--core-d); font-weight: 700; }
.nav a[aria-current="page"]::after {
  content: ""; display: block; height: 2px; margin-top: 3px;
  background: var(--core); border-radius: 2px;
}

/* 全站唯一下载入口：.top__in 的直接子元素，与 .nav 平级，绝不放进会折叠的容器 */
.btn {
  display: inline-block; padding: 11px 22px; border-radius: 8px;
  font-size: 15px; font-weight: 700; line-height: 1.3; text-align: center;
  border: 1px solid transparent; cursor: pointer;
  background: var(--navy); color: #fff;
}
.btn, .btn:link, .btn:visited { color: #fff; text-decoration: none; }
.btn:hover, .btn:focus { background: var(--navy-d); color: #fff; text-decoration: none; }
.btn--dl { background: var(--core); color: #fff; box-shadow: 0 3px 0 var(--core-d); }
.btn:hover.btn--dl { background: var(--core-d); color: #fff; }
.btn--ghost, .btn--ghost:link, .btn--ghost:visited {
  background: transparent; color: var(--navy-d); border-color: var(--navy);
}
.btn--ghost:hover, .btn--ghost:focus { background: var(--navy-l); color: var(--navy-d); }
.btn--l { padding: 15px 40px; font-size: 17px; border-radius: 10px; }
.top .btn { margin-left: 6px; }

.menu {
  display: none; width: 40px; height: 38px; border: 1px solid var(--line);
  border-radius: 8px; background: #fff; color: var(--navy-d);
  font-size: 17px; line-height: 1; cursor: pointer;
}

/* ── Hero：左文右图 ──────────────────────────────────────────────────── */
.hero { position: relative; overflow: hidden; background: var(--paper); }
.hero::after {
  content: ""; position: absolute; inset: 0 0 0 auto; width: 46%;
  background: linear-gradient(168deg, var(--navy) 0%, var(--navy-d) 100%);
  clip-path: polygon(22% 0, 100% 0, 100% 100%, 0 100%);
}
.hero__in {
  position: relative; z-index: 2;
  max-width: var(--wrap); margin: 0 auto; padding: 58px 22px 62px;
  display: grid; grid-template-columns: 1.06fr .94fr; gap: 46px; align-items: center;
}
.hero__copy { min-width: 0; }
.kicker {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 13px; letter-spacing: .14em; color: var(--core-d); font-weight: 700;
  text-transform: uppercase;
}
.kicker i { width: 9px; height: 9px; background: var(--green); border-radius: 2px; display: block; }
.hero h1 {
  margin: 14px 0 0; font-size: 44px; line-height: 1.22; letter-spacing: .01em;
  color: var(--ink); font-weight: 800;
}
.hero h1 em { font-style: normal; color: var(--core); }
.lead {
  margin: 18px 0 0; max-width: 40em; font-size: 16.5px; color: var(--txt2);
}
.hero__cta { margin-top: 26px; display: flex; flex-wrap: wrap; align-items: center; gap: 14px; }
.hero__meta { margin-top: 22px; display: flex; flex-wrap: wrap; gap: 10px 22px; font-size: 13.5px; color: var(--txt3); }
.hero__meta span { display: inline-flex; align-items: center; gap: 7px; }
.hero__meta i { width: 6px; height: 6px; border-radius: 50%; background: var(--core); display: block; }

.hero__shot { margin: 0; justify-self: center; }
.hero__shot img {
  width: 100%; height: auto; max-width: 306px; margin: 0 auto;
  border-radius: 20px; box-shadow: 0 0 0 6px rgba(255,255,255,.14), 0 24px 46px rgba(10,16,28,.42);
}
.hero__cap {
  margin: 14px auto 0; max-width: 306px; padding: 7px 12px; text-align: center;
  font-size: 13px; color: #F2EDE8; border-radius: 6px;
  background: rgba(16, 24, 34, .72);
}

/* ── 事实条：压住 Hero 底边 ───────────────────────────────────────────── */
.facts {
  position: relative; z-index: 4; margin-top: -30px;
}
.facts__in {
  max-width: var(--wrap); margin: 0 auto; padding: 0 22px;
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 0;
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--r); overflow: hidden;
}
.fact { padding: 20px 18px; border-right: 1px dashed var(--line); }
.fact:last-child { border-right: 0; }
.fact b { display: block; font-size: 19px; line-height: 1.35; color: var(--navy-d); letter-spacing: .01em; }
.fact span { display: block; margin-top: 6px; font-size: 13.5px; color: var(--txt2); }

/* ── 主体：页码轨 + 叠页长卷 ─────────────────────────────────────────── */
.body { padding: 46px 0 8px; }
.body__in {
  max-width: var(--wrap); margin: 0 auto; padding: 0 22px;
  display: grid; grid-template-columns: 178px minmax(0, 1fr); gap: 34px;
  align-items: start;
}
.rail { position: sticky; top: calc(var(--head-h) + 24px); }
.rail__t { font-size: 12px; letter-spacing: .2em; color: var(--txt3); margin: 0 0 12px; }
.rail ol { list-style: none; margin: 0; padding: 0; position: relative; }
.rail ol::before {
  content: ""; position: absolute; left: 11px; top: 8px; bottom: 8px;
  border-left: 1px dotted var(--line);
}
.rail li { position: relative; }
.rail a {
  display: flex; align-items: center; gap: 10px; padding: 7px 0;
  font-size: 14px; color: var(--txt2);
}
.rail a:hover { color: var(--core-d); text-decoration: none; }
.rail a b {
  flex: 0 0 23px; width: 23px; height: 23px; border-radius: 50%;
  background: var(--card); border: 1px solid var(--line); color: var(--txt3);
  font-size: 11px; font-weight: 700; display: flex; align-items: center; justify-content: center;
}
.rail a:hover b { border-color: var(--core); color: var(--core-d); }

.stack { min-width: 0; }

/* 叠页卡片 */
.sec {
  position: relative; background: var(--card);
  border: 1px solid var(--line); border-radius: var(--r);
  padding: 40px 36px 48px; margin-top: -28px;
}
.sec:first-child { margin-top: 0; }
.sec::before {
  content: ""; position: absolute; left: 0; top: 0; width: 52px; height: 3px;
  background: var(--core); border-radius: var(--r) 0 4px 0;
}
.sec__folio {
  position: absolute; right: 16px; top: 14px;
  font-size: 12px; letter-spacing: .12em; color: var(--navy-d);
  background: var(--paper2); border-radius: 4px; padding: 3px 9px; font-weight: 700;
}
.sec__head { margin: 0 0 22px; }
.sec h2 {
  margin: 0; font-size: 25px; line-height: 1.35; color: var(--ink); font-weight: 800;
  letter-spacing: .01em;
}
.sec .sub { margin: 9px 0 0; font-size: 14.5px; color: var(--txt3); }
.sec__rule { height: 1px; background: var(--line2); margin: 0 0 24px; }

/* 深色分段 */
.sec--deep { background: var(--ink); border-color: var(--ink); color: #E8E3DE; }
.sec--deep h2 { color: #fff; }
.sec--deep .sub { color: rgba(255,255,255,.66); }
.sec--deep .sec__folio { background: rgba(255,255,255,.12); color: #fff; }
.sec--deep .sec__rule { background: rgba(255,255,255,.14); }
.sec--deep a { color: #F2B7A6; }
.sec--deep a:hover { color: #fff; }
.sec--deep .prose p, .sec--deep .prose ul, .sec--deep .prose ol { color: rgba(255,255,255,.78); }
.sec--deep .prose strong { color: #fff; }
.sec--deep .list li { color: rgba(255,255,255,.78); }
.sec--deep .list li::before { background: var(--amber); }
.sec--deep .tbl-cap, .sec--deep .tbl-note { color: rgba(255,255,255,.6); }
.sec--deep th { background: rgba(255,255,255,.1); color: #fff; border-color: rgba(255,255,255,.2); }
.sec--deep td { color: rgba(255,255,255,.78); border-color: rgba(255,255,255,.2); }
.sec--deep .hl { background: linear-gradient(transparent 58%, rgba(224,160,58,.32) 58%); }
.sec--deep .callout { background: rgba(46,143,122,.2); border-left-color: var(--green); }
.sec--deep .callout p, .sec--deep .callout b { color: #E9F6F2; }
.sec--deep .fig-inline figcaption, .sec--deep .shot figcaption { color: rgba(255,255,255,.6); }

/* 功能卡 */
.fx-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.fcard {
  background: var(--paper); border: 1px solid var(--line2); border-radius: 8px;
  padding: 22px 20px 24px;
}
.fcard h3 {
  margin: 0 0 10px; font-size: 17px; color: var(--navy-d); font-weight: 700;
  display: flex; align-items: flex-start; gap: 9px;
}
.fcard h3 i {
  flex: 0 0 8px; width: 8px; height: 8px; margin-top: 8px; border-radius: 2px;
  background: var(--green); display: block;
}
.fcard p { margin: 0; font-size: 14.5px; color: var(--txt2); line-height: 1.8; }

/* 列表 */
.list { margin: 0; padding: 0; list-style: none; }
.list li { position: relative; padding-left: 20px; margin: 9px 0; font-size: 15px; color: var(--txt2); }
.list li::before {
  content: ""; position: absolute; left: 2px; top: 11px;
  width: 7px; height: 7px; background: var(--core); border-radius: 1px;
}
.list--green li::before { background: var(--green); }

.steps { margin: 0; padding: 0; list-style: none; counter-reset: st; }
.steps li {
  position: relative; padding: 0 0 22px 54px; counter-increment: st;
  border-left: 1px solid var(--line2); margin-left: 15px;
}
.steps li:last-child { border-left-color: transparent; padding-bottom: 4px; }
.steps li::before {
  content: counter(st, decimal-leading-zero);
  position: absolute; left: -15px; top: -3px;
  width: 30px; height: 30px; border-radius: 50%;
  background: var(--card); border: 2px solid var(--core); color: var(--core-d);
  font-size: 11px; font-weight: 800; display: flex; align-items: center; justify-content: center;
}
.steps b { display: block; font-size: 16px; color: var(--navy-d); margin-bottom: 4px; }
.steps p { margin: 0; font-size: 14.5px; color: var(--txt2); }

.body__in--full { grid-template-columns: minmax(0, 1fr); }

/* 截图画廊：多列瀑布 */
.shots { column-count: 3; column-gap: 16px; }
.shot { break-inside: avoid; margin: 0 0 16px; }
.shot img {
  width: 100%; height: auto; border-radius: 9px;
  box-shadow: 0 0 0 1px var(--line2);
}
.shot figcaption { margin-top: 8px; font-size: 13.5px; color: var(--txt3); }

/* 正文内嵌截图 */
.fig-inline { margin: 4px 0 20px; }
.fig-inline img {
  width: 100%; height: auto; max-width: 292px; border-radius: 9px;
  box-shadow: 0 0 0 1px var(--line2);
}
.fig-inline figcaption { margin-top: 8px; max-width: 292px; font-size: 13.5px; color: var(--txt3); }
.fig-pair { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin: 4px 0 20px; }
.fig-pair figure { margin: 0; }
.fig-pair img {
  width: 100%; height: auto; max-width: 292px; border-radius: 9px;
  box-shadow: 0 0 0 1px var(--line2);
}
.fig-pair figcaption { margin-top: 8px; max-width: 292px; font-size: 13.5px; color: var(--txt3); }

/* 入口卡 */
.entries { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.entry {
  display: block; padding: 24px 24px 26px; border-radius: 8px;
  background: var(--navy-l); border: 1px solid #D3DCE9;
}
.entry:hover { text-decoration: none; background: #DDE5F1; }
.entry em {
  display: inline-block; font-style: normal; font-size: 12px; letter-spacing: .1em;
  color: var(--green); font-weight: 700; margin-bottom: 8px;
}
.entry b { display: block; font-size: 17.5px; color: var(--navy-d); margin-bottom: 8px; }
.entry span { display: block; font-size: 14.5px; color: var(--txt2); }
.entry u { display: block; margin-top: 12px; font-size: 14px; color: var(--core-d); text-decoration: none; }

/* 评价 */
.rev-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.rev {
  background: var(--paper); border: 1px solid var(--line2); border-left: 3px solid var(--green);
  border-radius: 6px; padding: 20px 20px 22px;
}
.score { color: var(--amber); font-size: 14px; letter-spacing: .16em; }
.score span { color: var(--txt3); font-size: 12.5px; letter-spacing: 0; margin-left: 6px; }
.rev p { margin: 10px 0 0; font-size: 14.5px; color: var(--txt2); }
.rev cite { display: block; margin-top: 12px; font-style: normal; font-size: 13px; color: var(--txt3); }

/* 表格 */
.tbl-cap { margin: 0 0 10px; font-size: 13.5px; color: var(--txt3); }
.tbl-note { margin: 10px 0 0; font-size: 13.5px; color: var(--txt3); }
.tbl-scroll { overflow-x: auto; }
table { border-collapse: collapse; width: 100%; min-width: 548px; font-size: 14.5px; }
th, td { border: 1px solid var(--line); padding: 10px 12px; text-align: left; vertical-align: top; }
th { background: var(--paper2); color: var(--navy-d); font-weight: 700; white-space: nowrap; }
td { color: var(--txt2); }

/* FAQ */
.qa { margin: 0; }
.qa details {
  border: 1px solid var(--line2); border-radius: 8px; background: var(--paper);
  margin-bottom: 10px; padding: 2px 18px;
}
.qa details[open] { background: var(--card); border-color: var(--line); }
.qa summary {
  cursor: pointer; padding: 14px 0; font-size: 15.5px; font-weight: 700; color: var(--navy-d);
  list-style: none;
}
.qa summary::-webkit-details-marker { display: none; }
.qa summary::after { content: "＋"; float: right; color: var(--core); font-weight: 400; }
.qa details[open] summary::after { content: "－"; }
.qa p { margin: 0 0 16px; font-size: 14.5px; color: var(--txt2); }

/* 通栏 CTA */
.cta {
  margin-top: 8px; background: var(--ink2); color: #E8E3DE;
  border-radius: var(--r); overflow: hidden; position: relative;
}
.cta::before {
  content: ""; position: absolute; inset: 0;
  background: repeating-linear-gradient(135deg, rgba(180,69,46,.16) 0 10px, transparent 10px 24px);
}
.cta__in { position: relative; padding: 46px 36px 50px; text-align: center; }
.cta h2 { margin: 0; font-size: 26px; color: #fff; }
.cta .sub { margin: 10px auto 0; max-width: 44em; font-size: 14.5px; color: rgba(255,255,255,.7); }
.cta .btn { margin-top: 24px; }
.cta-note { margin: 16px 0 0; font-size: 13.5px; color: rgba(255,255,255,.62); }

/* 内页横幅 */
.page-hero {
  position: relative; background: var(--navy); color: #fff; overflow: hidden;
}
.page-hero::after {
  content: ""; position: absolute; inset: 0;
  background: repeating-linear-gradient(115deg, rgba(46,143,122,.18) 0 8px, transparent 8px 30px);
}
.page-hero__in {
  position: relative; z-index: 2; max-width: var(--wrap); margin: 0 auto;
  padding: 46px 22px 48px;
}
.page-hero .crumb { font-size: 13px; color: rgba(255,255,255,.66); }
.page-hero .crumb a { color: rgba(255,255,255,.86); }
.page-hero h1 { margin: 10px 0 0; font-size: 32px; line-height: 1.3; color: #fff; }
.page-hero .lead { margin: 14px 0 0; color: rgba(255,255,255,.8); max-width: 46em; }

/* 正文排版 */
.prose p { margin: 0 0 16px; font-size: 15.5px; color: var(--txt2); }
.prose h3 { margin: 26px 0 10px; font-size: 18px; color: var(--navy-d); }
.prose ul, .prose ol { margin: 0 0 16px; padding-left: 22px; font-size: 15.5px; color: var(--txt2); }
.prose li { margin: 6px 0; }
.prose strong { color: var(--ink); }
.hl { background: linear-gradient(transparent 58%, var(--core-l) 58%); padding: 0 2px; }
.callout {
  border-left: 3px solid var(--green); background: var(--green-l);
  padding: 16px 20px; border-radius: 0 8px 8px 0; margin: 0 0 18px;
}
.callout p { margin: 0; font-size: 14.5px; color: #23564A; }
.callout b { color: #1B443A; }

/* ── 页脚 ────────────────────────────────────────────────────────────── */
.foot { margin-top: 54px; background: var(--ink2); color: rgba(255,255,255,.72); }
.foot__in {
  max-width: var(--wrap); margin: 0 auto; padding: 44px 22px 30px;
  display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 30px;
}
.foot h3 { margin: 0 0 12px; font-size: 15px; color: #fff; }
.foot p { margin: 0 0 10px; font-size: 13.5px; line-height: 1.85; }
.foot ul { list-style: none; margin: 0; padding: 0; }
.foot li { margin: 5px 0; font-size: 13.5px; }
.foot a { color: rgba(255,255,255,.82); }
.foot a:hover { color: #fff; }
.foot .btn { margin-top: 12px; }
.foot__disc {
  border-top: 1px solid rgba(255,255,255,.12);
  max-width: var(--wrap); margin: 0 auto; padding: 16px 22px 30px;
}
.foot__disc p { margin: 0 0 8px; font-size: 13px; line-height: 1.8; color: rgba(255,255,255,.6); }

/* ── ≤980 ───────────────────────────────────────────────────────────── */
@media (max-width: 980px) {
  .nav {
    display: none; position: absolute; left: 0; right: 0; top: var(--head-h);
    background: #fff; border-bottom: 1px solid var(--line);
    flex-direction: column; align-items: stretch; gap: 0; padding: 8px 14px 14px;
  }
  .top.open .nav { display: flex; }
  .nav a { padding: 12px 6px; border-radius: 6px; }
  .nav a[aria-current="page"]::after { display: none; }
  .menu { display: block; margin-left: auto; }
  .top .btn { margin-left: 0; padding: 10px 16px; font-size: 14px; }

  .hero::after { display: none; }
  .hero__in { grid-template-columns: 1fr; gap: 30px; padding: 40px 22px 46px; }
  .hero h1 { font-size: 34px; }
  .hero__shot {
    padding: 22px 26px 24px; border-radius: 18px; max-width: 340px;
    background: linear-gradient(168deg, var(--navy) 0%, var(--navy-d) 100%);
  }
  .hero__shot img { max-width: 268px; }
  .hero__cap {
    max-width: 268px; color: #F2EDE8; background: rgba(255, 255, 255, .14);
  }

  .facts__in { grid-template-columns: repeat(2, 1fr); }
  .fact { border-bottom: 1px dashed var(--line); }
  .fact:nth-child(2n) { border-right: 0; }
  .fact:nth-child(n+3) { border-bottom: 0; }

  .body__in { grid-template-columns: 1fr; gap: 0; }
  .rail { position: static; display: none; }

  .fx-grid, .rev-grid { grid-template-columns: repeat(2, 1fr); }
  .shots { column-count: 2; }
  .sec { padding: 34px 26px 40px; margin-top: -20px; }
  .foot__in { grid-template-columns: 1fr 1fr; }
  .foot__in > div:first-child { grid-column: 1 / -1; }
}

/* ── ≤620 ───────────────────────────────────────────────────────────── */
@media (max-width: 620px) {
  body { font-size: 15.5px; }
  .top__in, .hero__in, .facts__in, .body__in { padding-left: 16px; padding-right: 16px; }
  .brand b { font-size: 17px; }
  .top .btn { padding: 9px 13px; font-size: 13.5px; }

  .hero h1 { font-size: 27px; }
  .lead { font-size: 15.5px; }
  .hero__cta .btn { width: 100%; }
  .hero__shot img { max-width: 232px; }
  .hero__cap { max-width: 232px; }

  .facts__in { grid-template-columns: 1fr; }
  .fact { border-right: 0; border-bottom: 1px dashed var(--line); }
  .fact:nth-child(n+3) { border-bottom: 1px dashed var(--line); }
  .fact:last-child { border-bottom: 0; }

  .sec { padding: 26px 18px 30px; margin-top: -14px; border-radius: 8px; }
  .sec h2 { font-size: 21px; }
  .sec__folio { right: 12px; top: 11px; font-size: 11px; }

  .fx-grid, .rev-grid, .entries { grid-template-columns: 1fr; }
  .shots { column-count: 1; }
  .fig-pair { grid-template-columns: 1fr; }

  .cta__in { padding: 34px 18px 38px; }
  .cta h2 { font-size: 21px; }
  .cta .btn { width: 100%; }

  .page-hero__in { padding: 32px 16px 34px; }
  .page-hero h1 { font-size: 24px; }

  .steps li { padding-left: 44px; }
  .foot__in { grid-template-columns: 1fr; gap: 24px; padding: 32px 16px 22px; }
  .foot__disc { padding: 14px 16px 26px; }
}