@charset "UTF-8";
/* ==========================================================================
   漫蛙2 · 品牌专题站 共用样式表
   主题：清新活泼的漫画阅读风
   ========================================================================== */

:root {
  /* 主色 —— 蛙绿 */
  --green-50: #ecfdf3;
  --green-100: #d6f8e3;
  --green-200: #aef0c8;
  --green-300: #7ee3a7;
  --green-400: #45d183;
  --green-500: #1fc26b;
  --green-600: #12a85a;
  --green-700: #0d8145;
  --green-900: #0a3d24;

  /* 辅助色 */
  --coral: #ff7a5c;
  --coral-soft: #ffe6df;
  --amber: #ffc53d;
  --amber-soft: #fff4d6;
  --sky: #3bb2f6;
  --sky-soft: #e0f2fe;
  --violet: #8b7cf6;
  --violet-soft: #eeebff;
  --pink: #ff7ab8;

  /* 中性色 */
  --ink: #16301f;
  --ink-2: #3f5c4d;
  --ink-3: #6d8578;
  --line: #dcf0e5;
  --line-2: #c2e6d3;
  --bg: #f4fbf7;
  --bg-2: #ffffff;
  --white: #fff;

  --radius-s: 12px;
  --radius-m: 20px;
  --radius-l: 28px;
  --radius-xl: 36px;

  --shadow-s: 0 4px 14px rgba(18, 168, 90, .08);
  --shadow-m: 0 12px 34px rgba(16, 100, 58, .10);
  --shadow-l: 0 24px 60px rgba(12, 80, 46, .13);

  --font: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC",
          "Noto Sans CJK SC", "WenQuanYi Micro Hei", system-ui, -apple-system, "Segoe UI", Arial, sans-serif;
  --wrap: 1180px;
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink);
  background: var(--bg);
  overflow-x: hidden;
}

/* 漫画网点底纹 */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image:
    radial-gradient(rgba(31, 194, 107, .10) 1.4px, transparent 1.5px);
  background-size: 22px 22px;
  pointer-events: none;
  z-index: 0;
}

img { max-width: 100%; display: block; border: 0; height: auto; }
a { color: var(--green-700); text-decoration: none; transition: color .2s; }
a:hover { color: var(--coral); }

h1, h2, h3, h4 { margin: 0 0 .6em; line-height: 1.35; font-weight: 800; letter-spacing: .2px; }
h1 { font-size: 2.5rem; }
h2 { font-size: 1.85rem; }
h3 { font-size: 1.22rem; }
p { margin: 0 0 1em; }
ul, ol { margin: 0 0 1em; padding-left: 1.3em; }
li { margin-bottom: .45em; }

.wrap { width: 100%; max-width: var(--wrap); margin: 0 auto; padding: 0 20px; position: relative; z-index: 1; }
.section { padding: 74px 0; position: relative; }
.section--tight { padding: 52px 0; }
.section--alt { background: linear-gradient(180deg, #fff 0%, var(--green-50) 100%); }

.center { text-align: center; }
.mt-0 { margin-top: 0; }
.hide { display: none !important; }

/* ---------- 标题组 ---------- */
.sec-head { max-width: 760px; margin: 0 auto 44px; text-align: center; }
.sec-head .eyebrow {
  display: inline-block; font-size: .78rem; font-weight: 800; letter-spacing: 2px;
  text-transform: uppercase; color: var(--green-700);
  background: var(--green-100); border-radius: 999px; padding: 5px 16px; margin-bottom: 14px;
}
.sec-head p { color: var(--ink-2); margin: 0; font-size: 1.02rem; }
.sec-head--left { text-align: left; margin-left: 0; }

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 9px;
  font-family: inherit; font-size: 1rem; font-weight: 800; line-height: 1;
  padding: 15px 30px; border-radius: 999px; border: 2px solid transparent;
  cursor: pointer; transition: transform .18s, box-shadow .18s, background .2s, color .2s;
  text-align: center; white-space: nowrap;
}
.btn i { font-size: .95em; }
.btn--primary {
  color: #fff; background: linear-gradient(135deg, var(--green-400), var(--green-600));
  box-shadow: 0 10px 24px rgba(18, 168, 90, .32);
}
.btn--primary:hover { color: #fff; transform: translateY(-2px); box-shadow: 0 16px 32px rgba(18, 168, 90, .4); }
.btn--amber {
  color: #4a2c00; background: linear-gradient(135deg, #ffd75e, var(--amber));
  box-shadow: 0 10px 24px rgba(255, 197, 61, .38);
}
.btn--amber:hover { color: #4a2c00; transform: translateY(-2px); }
.btn--ghost {
  color: var(--green-700); background: #fff; border-color: var(--line-2); box-shadow: var(--shadow-s);
}
.btn--ghost:hover { color: var(--green-700); border-color: var(--green-400); transform: translateY(-2px); }
.btn--lg { font-size: 1.08rem; padding: 18px 40px; }
.btn--sm { font-size: .9rem; padding: 11px 20px; }
.btn--block { width: 100%; }

/* ==========================================================================
   顶部导航
   ========================================================================== */
.topbar {
  position: sticky; top: 0; z-index: 60;
  background: rgba(255, 255, 255, .9);
  backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--line);
}
.topbar__inner { display: flex; align-items: center; gap: 18px; height: 70px; }
.brand { display: flex; align-items: center; gap: 11px; flex-shrink: 0; }
.brand img { width: 42px; height: 42px; border-radius: 12px; box-shadow: 0 6px 14px rgba(18, 168, 90, .25); }
.brand__name { font-size: 1.22rem; font-weight: 900; color: var(--ink); letter-spacing: .5px; line-height: 1.1; }
.brand__name em { font-style: normal; color: var(--green-600); }
.brand__sub { display: block; font-size: .68rem; font-weight: 700; color: var(--ink-3); letter-spacing: 1.4px; }

.nav { margin-left: auto; display: flex; align-items: center; gap: 4px; }
.nav a {
  font-size: .94rem; font-weight: 700; color: var(--ink-2);
  padding: 8px 13px; border-radius: 999px; transition: background .2s, color .2s;
}
.nav a:hover { background: var(--green-50); color: var(--green-700); }
.nav a.is-active { background: var(--green-100); color: var(--green-700); }

.topbar .btn { flex-shrink: 0; }

.nav-toggle {
  display: none; margin-left: auto; width: 44px; height: 44px; border-radius: 12px;
  border: 2px solid var(--line-2); background: #fff; color: var(--green-700);
  font-size: 1.05rem; cursor: pointer; align-items: center; justify-content: center;
}

/* ==========================================================================
   Hero
   ========================================================================== */
.hero { position: relative; overflow: hidden; padding: 68px 0 78px; }
.hero::after {
  content: ""; position: absolute; inset: 0; z-index: 0;
  background:
    radial-gradient(620px 420px at 88% 12%, rgba(255, 197, 61, .30), transparent 62%),
    radial-gradient(560px 420px at 8% 88%, rgba(59, 178, 246, .22), transparent 64%),
    linear-gradient(180deg, #eafcf1 0%, var(--bg) 100%);
}
.hero__grid {
  position: relative; z-index: 1;
  display: grid; grid-template-columns: 1.08fr .92fr; gap: 48px; align-items: center;
}
.hero__badges { display: flex; flex-wrap: wrap; gap: 9px; margin-bottom: 20px; }
.chip {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: .82rem; font-weight: 800; padding: 6px 14px; border-radius: 999px;
  background: #fff; border: 2px solid var(--line-2); color: var(--green-700);
  box-shadow: var(--shadow-s);
}
.chip--amber { background: var(--amber-soft); border-color: #ffe2a0; color: #8a5a00; }
.chip--sky { background: var(--sky-soft); border-color: #bfe5fd; color: #0369a1; }
.chip--violet { background: var(--violet-soft); border-color: #d6cffd; color: #5b46d6; }

.hero h1 {
  font-size: 2.95rem; font-weight: 900; line-height: 1.22; margin-bottom: 18px;
  color: var(--ink); letter-spacing: 1px;
}
.hero h1 mark {
  background: linear-gradient(180deg, transparent 58%, var(--green-200) 58%);
  color: var(--green-700); padding: 0 4px; border-radius: 4px;
}
.hero__lead { font-size: 1.1rem; color: var(--ink-2); max-width: 560px; margin-bottom: 26px; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; align-items: center; margin-bottom: 26px; }
.hero__note { font-size: .85rem; color: var(--ink-3); display: flex; align-items: center; gap: 7px; }
.hero__note i { color: var(--green-500); }

.hero__meta { display: flex; flex-wrap: wrap; gap: 26px; padding-top: 22px; border-top: 2px dashed var(--line-2); }
.hero__meta div strong { display: block; font-size: 1.6rem; font-weight: 900; color: var(--green-700); line-height: 1.2; }
.hero__meta div span { font-size: .84rem; color: var(--ink-3); font-weight: 700; }

/* ---------- 手机预览框架 ---------- */
.phone-stage { position: relative; display: flex; justify-content: center; gap: 20px; }
.phone-stage .phone { width: clamp(148px, 44%, 228px); flex-shrink: 1; }
.phone {
  width: 236px; flex-shrink: 0; background: #16241c; border-radius: 34px; padding: 9px;
  box-shadow: var(--shadow-l); position: relative;
}
.phone::before {
  content: ""; position: absolute; top: 15px; left: 50%; transform: translateX(-50%);
  width: 62px; height: 6px; border-radius: 999px; background: rgba(255, 255, 255, .32); z-index: 2;
}
.phone img { border-radius: 26px; width: 100%; }
.phone__tag {
  position: absolute; bottom: -15px; left: 50%; transform: translateX(-50%);
  background: #fff; color: var(--green-700); font-size: .76rem; font-weight: 800;
  padding: 5px 15px; border-radius: 999px; box-shadow: var(--shadow-m); white-space: nowrap;
  border: 2px solid var(--line-2);
}
.phone--tilt-l { transform: rotate(-5deg) translateY(14px); }
.phone--tilt-r { transform: rotate(5deg) translateY(14px); }
.phone--back { z-index: 0; }
.phone--front { z-index: 2; }

/* ==========================================================================
   卡片 / 网格
   ========================================================================== */
.grid { display: grid; gap: 22px; }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

.card {
  background: #fff; border: 2px solid var(--line); border-radius: var(--radius-l);
  padding: 28px; box-shadow: var(--shadow-s); transition: transform .2s, box-shadow .2s, border-color .2s;
  position: relative; overflow: hidden;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-m); border-color: var(--line-2); }
.card h3 { margin-bottom: .45em; }
.card p:last-child { margin-bottom: 0; }
.card__ico {
  width: 54px; height: 54px; border-radius: 16px; display: flex; align-items: center; justify-content: center;
  font-size: 1.35rem; margin-bottom: 16px; background: var(--green-100); color: var(--green-700);
}
.card__ico--amber { background: var(--amber-soft); color: #a97400; }
.card__ico--sky { background: var(--sky-soft); color: #0369a1; }
.card__ico--violet { background: var(--violet-soft); color: #5b46d6; }
.card__ico--coral { background: var(--coral-soft); color: #c2410c; }

.card__num {
  position: absolute; right: 18px; top: 10px; font-size: 3.2rem; font-weight: 900;
  color: var(--green-50); line-height: 1; z-index: 0;
}
.card > * { position: relative; z-index: 1; }

/* 链接卡片（深度内容入口） */
.linkcard { display: flex; flex-direction: column; }
.linkcard__tag {
  align-self: flex-start; font-size: .75rem; font-weight: 800; letter-spacing: 1px;
  padding: 4px 12px; border-radius: 999px; margin-bottom: 14px;
  background: var(--green-100); color: var(--green-700);
}
.linkcard p { color: var(--ink-2); font-size: .95rem; }
.linkcard__more { margin-top: auto; font-weight: 800; font-size: .92rem; display: inline-flex; align-items: center; gap: 7px; }
.linkcard:hover .linkcard__more { gap: 12px; }
.linkcard__more { transition: gap .2s; }

/* ==========================================================================
   数据 / 信任标识
   ========================================================================== */
.stats {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px;
  background: linear-gradient(135deg, var(--green-600), var(--green-700));
  border-radius: var(--radius-xl); padding: 40px 28px; color: #fff; box-shadow: var(--shadow-m);
  position: relative; overflow: hidden;
}
.stats::after {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(rgba(255, 255, 255, .16) 1.2px, transparent 1.3px);
  background-size: 18px 18px; opacity: .7;
}
.stats div { text-align: center; position: relative; z-index: 1; }
.stats strong { display: block; font-size: 2.1rem; font-weight: 900; line-height: 1.15; }
.stats span { font-size: .88rem; opacity: .88; font-weight: 700; }
.stats em { font-style: normal; font-size: 1.1rem; }

/* ==========================================================================
   手机截图画廊
   ========================================================================== */
.gallery {
  display: flex; gap: 26px; overflow-x: auto; padding: 14px 4px 30px;
  scroll-snap-type: x mandatory; -webkit-overflow-scrolling: touch;
}
.gallery::-webkit-scrollbar { height: 8px; }
.gallery::-webkit-scrollbar-thumb { background: var(--green-200); border-radius: 999px; }
.gallery::-webkit-scrollbar-track { background: var(--green-50); border-radius: 999px; }
.gallery__item { scroll-snap-align: center; text-align: center; flex-shrink: 0; }
.gallery__item .phone { width: 232px; }
.gallery__item figcaption {
  margin-top: 20px; font-size: .88rem; font-weight: 800; color: var(--ink-2);
}
.gallery-hint {
  text-align: center; font-size: .84rem; color: var(--ink-3); margin: 0;
}

/* ==========================================================================
   图文分栏
   ========================================================================== */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 46px; align-items: center; }
.split--rev .split__media { order: 2; }
.split__media img {
  border-radius: var(--radius-l); border: 2px solid var(--line); box-shadow: var(--shadow-m); width: 100%;
}
.split h2 { font-size: 1.7rem; }
.split p { color: var(--ink-2); }
.checklist { list-style: none; padding: 0; margin: 0 0 4px; }
.checklist li { display: flex; gap: 11px; align-items: flex-start; font-weight: 600; color: var(--ink-2); }
.checklist li i { color: var(--green-500); margin-top: 6px; flex-shrink: 0; }

/* ==========================================================================
   步骤流程
   ========================================================================== */
.steps { counter-reset: step; display: grid; gap: 18px; }
.step {
  display: grid; grid-template-columns: 62px 1fr; gap: 20px; align-items: start;
  background: #fff; border: 2px solid var(--line); border-radius: var(--radius-m); padding: 24px 26px;
  box-shadow: var(--shadow-s); transition: border-color .2s, transform .2s;
}
.step:hover { border-color: var(--green-300); transform: translateX(4px); }
.step__no {
  width: 54px; height: 54px; border-radius: 18px; display: flex; align-items: center; justify-content: center;
  font-weight: 900; font-size: 1.15rem; color: #fff;
  background: linear-gradient(135deg, var(--green-400), var(--green-600));
  box-shadow: 0 8px 18px rgba(18, 168, 90, .28);
}
.step h3 { margin-bottom: .3em; font-size: 1.1rem; }
.step p { margin: 0; color: var(--ink-2); font-size: .96rem; }

/* ==========================================================================
   评价
   ========================================================================== */
.review { display: flex; flex-direction: column; }
.review__stars { color: var(--amber); font-size: .92rem; letter-spacing: 2px; margin-bottom: 12px; }
.review__text { color: var(--ink-2); font-size: .96rem; flex: 1; }
.review__user { display: flex; align-items: center; gap: 12px; margin-top: 18px; padding-top: 16px; border-top: 1px dashed var(--line-2); }
.review__avatar {
  width: 42px; height: 42px; border-radius: 50%; display: flex; align-items: center; justify-content: center;
  font-weight: 900; color: #fff; font-size: 1rem; flex-shrink: 0;
}
.review__user b { display: block; font-size: .93rem; }
.review__user span { font-size: .78rem; color: var(--ink-3); }

/* ==========================================================================
   折叠面板 / FAQ
   ========================================================================== */
.acc { display: grid; gap: 12px; }
.acc__item { background: #fff; border: 2px solid var(--line); border-radius: var(--radius-m); overflow: hidden; transition: border-color .2s; }
.acc__item.is-open { border-color: var(--green-300); box-shadow: var(--shadow-s); }
.acc__q {
  width: 100%; display: flex; align-items: center; gap: 14px; text-align: left;
  background: none; border: 0; cursor: pointer; font-family: inherit;
  font-size: 1rem; font-weight: 800; color: var(--ink); padding: 19px 22px; line-height: 1.5;
}
.acc__q:hover { color: var(--green-700); }
.acc__q .qmark {
  width: 26px; height: 26px; border-radius: 9px; background: var(--green-100); color: var(--green-700);
  display: flex; align-items: center; justify-content: center; font-size: .82rem; font-weight: 900; flex-shrink: 0;
}
.acc__q .arrow { margin-left: auto; color: var(--green-500); transition: transform .25s; flex-shrink: 0; }
.acc__item.is-open .acc__q .arrow { transform: rotate(180deg); }
.acc__a { display: none; padding: 0 22px 21px 62px; color: var(--ink-2); font-size: .96rem; }
.acc__a p:last-child { margin-bottom: 0; }
.acc__item.is-open .acc__a { display: block; animation: fadeUp .3s ease; }

@keyframes fadeUp { from { opacity: 0; transform: translateY(-6px); } to { opacity: 1; transform: none; } }

/* ==========================================================================
   底部下载通道
   ========================================================================== */
.cta {
  position: relative; overflow: hidden; border-radius: var(--radius-xl);
  background: linear-gradient(135deg, #0f8f4f 0%, #0a6b3a 55%, #075c33 100%);
  color: #fff; padding: 58px 44px; text-align: center; box-shadow: var(--shadow-l);
}
.cta::after {
  content: ""; position: absolute; inset: 0;
  background:
    radial-gradient(360px 260px at 12% 18%, rgba(255, 197, 61, .34), transparent 62%),
    radial-gradient(rgba(255, 255, 255, .18) 1.2px, transparent 1.3px);
  background-size: auto, 20px 20px;
}
.cta > * { position: relative; z-index: 1; }
.cta h2 { color: #fff; font-size: 2rem; }
.cta p { color: rgba(255, 255, 255, .88); max-width: 640px; margin: 0 auto 26px; }
.cta__actions { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; }
.cta__tips { display: flex; flex-wrap: wrap; gap: 10px 26px; justify-content: center; margin-top: 24px; font-size: .87rem; color: rgba(255, 255, 255, .84); }
.cta__tips i { color: var(--amber); margin-right: 6px; }
.cta .mascot {
  width: 88px; height: 88px; border-radius: 24px; margin: 0 auto 20px; box-shadow: var(--shadow-m);
}

/* 内页 Hero */
.page-hero {
  position: relative; padding: 56px 0 48px; overflow: hidden;
  background: linear-gradient(180deg, #eafcf1 0%, var(--bg) 100%);
  border-bottom: 1px solid var(--line);
}
.page-hero::after {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(520px 320px at 82% 0%, rgba(255, 197, 61, .26), transparent 62%);
}
.page-hero .wrap { position: relative; z-index: 1; }
.crumb { font-size: .84rem; color: var(--ink-3); margin-bottom: 14px; font-weight: 700; }
.crumb a { color: var(--green-700); }
.crumb span { margin: 0 7px; }
.page-hero h1 { font-size: 2.3rem; max-width: 860px; }
.page-hero p { color: var(--ink-2); max-width: 760px; margin: 0; font-size: 1.05rem; }
.page-hero__tags { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 20px; }

/* 文章正文 */
.prose { max-width: 900px; }
.prose h2 { margin-top: 1.6em; padding-left: 16px; border-left: 6px solid var(--green-400); font-size: 1.5rem; }
.prose h3 { margin-top: 1.3em; color: var(--green-700); }
.prose p, .prose li { color: var(--ink-2); }
.prose strong { color: var(--ink); }
.prose blockquote {
  margin: 1.4em 0; padding: 18px 24px; background: var(--green-50);
  border-left: 6px solid var(--green-400); border-radius: 0 var(--radius-s) var(--radius-s) 0;
  color: var(--ink-2); font-size: .96rem;
}
.prose blockquote p:last-child { margin-bottom: 0; }
.prose table { width: 100%; border-collapse: collapse; margin: 1.4em 0; font-size: .93rem; }
.prose th, .prose td { border: 1px solid var(--line-2); padding: 12px 14px; text-align: left; }
.prose th { background: var(--green-50); color: var(--green-700); font-weight: 800; }
.prose td { color: var(--ink-2); }
.prose-wrap { display: grid; grid-template-columns: minmax(0, 1fr) 296px; gap: 46px; align-items: start; }

/* 侧栏 */
.aside { position: sticky; top: 92px; display: grid; gap: 20px; }
.aside__box { background: #fff; border: 2px solid var(--line); border-radius: var(--radius-m); padding: 22px; box-shadow: var(--shadow-s); }
.aside__box h3 { font-size: 1rem; margin-bottom: .8em; display: flex; align-items: center; gap: 9px; }
.aside__box h3 i { color: var(--green-500); }
.aside__list { list-style: none; padding: 0; margin: 0; }
.aside__list li { margin-bottom: 4px; }
.aside__list a { display: flex; gap: 9px; align-items: flex-start; font-size: .91rem; font-weight: 700; color: var(--ink-2); padding: 7px 0; border-bottom: 1px dashed var(--line); }
.aside__list li:last-child a { border-bottom: 0; }
.aside__list a:hover { color: var(--green-700); }
.aside__list i { color: var(--green-400); margin-top: 6px; font-size: .72rem; flex-shrink: 0; }
.aside__cta { background: linear-gradient(135deg, var(--green-500), var(--green-700)); color: #fff; border: 0; text-align: center; }
.aside__cta h3 { color: #fff; justify-content: center; }
.aside__cta h3 i { color: var(--amber); }
.aside__cta p { font-size: .87rem; color: rgba(255, 255, 255, .9); margin-bottom: 16px; }

/* 内链推荐块 */
.picks { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.pick {
  display: block; background: #fff; border: 2px solid var(--line); border-radius: var(--radius-m);
  padding: 22px; transition: transform .2s, border-color .2s, box-shadow .2s;
}
.pick:hover { transform: translateY(-4px); border-color: var(--green-300); box-shadow: var(--shadow-m); }
.pick b { display: block; font-size: 1rem; color: var(--ink); margin-bottom: 6px; }
.pick span { font-size: .89rem; color: var(--ink-2); display: block; margin-bottom: 10px; }
.pick em { font-style: normal; font-size: .86rem; font-weight: 800; color: var(--green-600); }

/* 提示条 */
.notice {
  display: flex; gap: 14px; align-items: flex-start; background: var(--amber-soft);
  border: 2px solid #ffe2a0; border-radius: var(--radius-m); padding: 18px 22px; margin: 1.4em 0;
}
.notice i { color: #b47c00; margin-top: 5px; }
.notice p { margin: 0; font-size: .93rem; color: #6b4a00; }

/* ==========================================================================
   页脚
   ========================================================================== */
.site-foot { background: #0c3222; color: rgba(255, 255, 255, .76); padding: 56px 0 26px; margin-top: 0; position: relative; }
.site-foot::after {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(rgba(255, 255, 255, .05) 1.2px, transparent 1.3px);
  background-size: 22px 22px;
}
.site-foot .wrap { position: relative; z-index: 1; }
.site-foot__grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1.2fr; gap: 36px; padding-bottom: 34px; }
.site-foot h4 { color: #fff; font-size: 1rem; margin-bottom: 1em; }
.site-foot p { font-size: .89rem; line-height: 1.85; }
.site-foot a { color: rgba(255, 255, 255, .78); font-size: .89rem; }
.site-foot a:hover { color: var(--amber); }
.site-foot ul { list-style: none; padding: 0; margin: 0; }
.site-foot li { margin-bottom: 9px; }
.site-foot .brand { margin-bottom: 14px; }
.site-foot .brand__name { color: #fff; }
.site-foot .brand__name em { color: var(--green-300); }
.site-foot .brand__sub { color: rgba(255, 255, 255, .55); }
.site-foot__disclaimer {
  border-top: 1px solid rgba(255, 255, 255, .14); padding-top: 22px; margin-top: 6px;
  font-size: .85rem; color: rgba(255, 255, 255, .62); line-height: 1.85;
}
.site-foot__disclaimer strong { color: rgba(255, 255, 255, .85); }
.site-foot__bottom {
  display: flex; flex-wrap: wrap; gap: 10px 22px; align-items: center; justify-content: space-between;
  margin-top: 16px; font-size: .84rem; color: rgba(255, 255, 255, .55);
}
.foot-frog { width: 40px; height: 40px; border-radius: 12px; }

/* 返回顶部 */
.to-top {
  position: fixed; right: 22px; bottom: 26px; width: 48px; height: 48px; border-radius: 16px;
  border: 0; background: var(--green-500); color: #fff; font-size: 1.05rem; cursor: pointer;
  box-shadow: 0 12px 26px rgba(18, 168, 90, .36); opacity: 0; visibility: hidden;
  transition: opacity .25s, visibility .25s, transform .2s; z-index: 70; display: flex;
  align-items: center; justify-content: center;
}
.to-top.is-on { opacity: 1; visibility: visible; }
.to-top:hover { transform: translateY(-3px); }

/* 滚动进场：仅在 JS 可用时隐藏，避免无 JS / 爬虫渲染时内容不可见 */
.reveal { transition: opacity .55s ease, transform .55s ease; }
.js .reveal { opacity: 0; transform: translateY(18px); }
.js .reveal.is-in { opacity: 1; transform: none; }

/* ==========================================================================
   响应式
   ========================================================================== */
@media (max-width: 1080px) {
  .prose-wrap { grid-template-columns: 1fr; }
  .aside { position: static; }
  .site-foot__grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 900px) {
  .nav-toggle { display: flex; }
  .nav {
    position: absolute; top: 70px; left: 0; right: 0; flex-direction: column; align-items: stretch;
    gap: 2px; background: #fff; border-bottom: 1px solid var(--line);
    padding: 12px 20px 18px; box-shadow: var(--shadow-m); display: none;
  }
  .nav.is-open { display: flex; animation: fadeUp .25s ease; }
  .nav a { padding: 12px 14px; border-radius: 12px; font-size: 1rem; }
  .topbar .btn--nav { display: none; }

  .hero { padding: 44px 0 58px; }
  .hero__grid { grid-template-columns: 1fr; gap: 40px; text-align: center; }
  .hero h1 { font-size: 2.15rem; }
  .hero__lead { margin-left: auto; margin-right: auto; }
  .hero__actions, .hero__badges, .hero__meta { justify-content: center; }
  .hero__note { justify-content: center; }
  .hero__grid .btn--primary, .hero__grid .btn--ghost { flex: 0 1 auto; }

  .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .grid--3 { grid-template-columns: repeat(2, 1fr); }
  .picks { grid-template-columns: 1fr 1fr; }
  .stats { grid-template-columns: repeat(2, 1fr); gap: 26px 14px; padding: 32px 20px; }
  .split { grid-template-columns: 1fr; gap: 30px; }
  .split--rev .split__media { order: 0; }
  .phone--tilt-l, .phone--tilt-r { transform: none; }
  .phone-stage { gap: 14px; }
  .phone { width: 200px; }
  .section { padding: 56px 0; }
  .page-hero h1 { font-size: 1.85rem; }
}

@media (max-width: 620px) {
  body { font-size: 15.5px; }
  .wrap { padding: 0 16px; }
  .hero h1 { font-size: 1.78rem; }
  h2 { font-size: 1.45rem; }
  .hero__meta { gap: 18px; }
  .hero__meta div strong { font-size: 1.35rem; }
  .grid--2, .grid--3, .grid--4, .picks { grid-template-columns: 1fr; }
  .stats { grid-template-columns: repeat(2, 1fr); }
  .stats strong { font-size: 1.6rem; }
  .site-foot__grid { grid-template-columns: 1fr; gap: 26px; }
  .btn { width: 100%; }
  .hero__actions, .cta__actions { flex-direction: column; }
  .cta { padding: 40px 22px; border-radius: 26px; }
  .cta h2 { font-size: 1.5rem; }
  .step { grid-template-columns: 1fr; gap: 12px; padding: 20px; }
  .acc__a { padding-left: 22px; }
  .phone { width: 150px; }
  .gallery__item .phone { width: 190px; }
  .phone__tag { font-size: .68rem; padding: 4px 11px; }
  .section { padding: 46px 0; }
  .page-hero { padding: 38px 0 34px; }
  .page-hero h1 { font-size: 1.55rem; }
  .prose h2 { font-size: 1.28rem; }
  .prose table { font-size: .86rem; }
  .prose th, .prose td { padding: 9px 10px; }
  .to-top { right: 14px; bottom: 16px; width: 44px; height: 44px; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
  .js .reveal, .reveal { opacity: 1; transform: none; }
}