/* ==========================================================================
   酷来 U 盘 AI 小助手 · 官网落地页
   色板严格对齐交付包 style.css 品牌红版：
   橘（痛点/警示）#C74A06 / #9A3504 · 绿（优势/解法）#0E7C1E / #0A5C16
   品牌红（编号·定位·价格）#E63946 —— 全站只有这一支红
   ========================================================================== */

/* ---------- 1. 设计令牌 ---------- */
:root {
  --k: 1;

  /* 品牌红 */
  --brand: #E63946;
  --brand-bg: #FFF0F0;
  --brand-bd: #FFC9C9;
  /* 同色系加深红：仅用于小字场景（白底 5.78 / 浅红底 5.22，AA 达标）。
     大字、图形、按钮底色仍用交付包锁定的 #E63946（该色符合大字线 3:1）。 */
  --brand-ink: #C22733;

  /* 橘 = 痛点 / 警示 */
  --or: #C74A06;
  --or-d: #9A3504;
  --or-bg: #FFF3EA;
  --or-bd: #FFD9C2;

  /* 绿 = 优势 / 解法 */
  --gn: #0E7C1E;
  --gn-d: #0A5C16;
  --gn-bg: #EAF9EA;
  --gn-bd: #C3E9C5;

  /* 中性 */
  --t1: #1F1F1F;
  --t2: #222222;
  --t3: #5A5A62;
  --t4: #6B6B72;
  --line: #EDEDF2;
  --line2: #D0D0D6;
  --bg: #FFFFFF;
  --bg2: #FAFAFB;
  --warm: #FFF8F2;

  /* 尺度 */
  --wrap: 1180px;
  --r: 16px;
  --r-s: 10px;
  --shadow: 0 2px 16px rgba(31, 31, 39, 0.06);
  --shadow-h: 0 8px 32px rgba(31, 31, 39, 0.1);
}

/* ---------- 1.5 社群码占位警示条（构建时自动注入）---------- */
.qr__warn {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 12px 14px;
  margin-bottom: 12px;
  border: 1px solid var(--or-bd);
  border-left: 4px solid var(--or);
  border-radius: var(--r-s);
  background: var(--or-bg);
  font-size: 13px;
  line-height: 1.6;
  color: var(--or-d);
}
.qr__warn b { color: var(--or); }
.qr__warn code {
  font-family: var(--font-mono, Consolas, monospace);
  font-size: 12px;
  padding: 1px 5px;
  border-radius: 4px;
  background: rgba(0, 0, 0, 0.05);
  word-break: break-all;
}

/* ---------- 2. 基础重置 ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  scroll-behavior: smooth;
  scroll-padding-top: 84px;
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: "Microsoft YaHei", "微软雅黑", "PingFang SC", "Hiragino Sans GB",
    "Source Han Sans SC", "Noto Sans CJK SC", system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: var(--t2);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

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

h1, h2, h3, h4 {
  margin: 0;
  line-height: 1.35;
  font-weight: 800;
  color: var(--t1);
  letter-spacing: -0.01em;
}

p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }

a { color: var(--brand-ink); text-decoration: none; }
a:hover { text-decoration: underline; }

:focus-visible {
  outline: 3px solid var(--brand);
  outline-offset: 3px;
  border-radius: 4px;
}

.wrap {
  width: min(100% - 40px, var(--wrap));
  margin-inline: auto;
}

.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  top: -60px; left: 16px;
  z-index: 200;
  background: var(--brand);
  color: #fff;
  padding: 10px 18px;
  border-radius: 0 0 8px 8px;
  font-weight: 700;
  transition: top 0.2s;
}
.skip-link:focus { top: 0; text-decoration: none; }

/* ---------- 4. 顶部导航 ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--line);
}
.nav__inner {
  display: flex;
  align-items: center;
  gap: 20px;
  min-height: 64px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 17px;
  color: var(--t1);
  white-space: nowrap;
}
.brand:hover { text-decoration: none; }
.brand img { width: 34px; height: 34px; }
.brand small {
  display: block;
  font-size: 11px;
  font-weight: 600;
  color: var(--t4);
  letter-spacing: 0.04em;
}
.nav__links {
  display: flex;
  gap: 4px;
  margin-left: auto;
  flex-wrap: wrap;
}
.nav__links a {
  padding: 8px 12px;
  border-radius: 8px;
  color: var(--t2);
  font-size: 14.5px;
  font-weight: 600;
  white-space: nowrap;
}
.nav__links a:hover { background: var(--bg2); color: var(--t1); text-decoration: none; }
.nav__cta {
  background: var(--brand-ink);
  color: #fff !important;
  padding: 10px 20px !important;
  border-radius: 999px;
  font-weight: 700;
  box-shadow: 0 2px 10px rgba(230, 57, 70, 0.28);
}
.nav__cta:hover { background: #cf2d3a; }

/* ---------- 5. 通用区块 ---------- */
.section { padding: 84px 0; }
.section--tint { background: var(--bg2); }
.section--warm { background: linear-gradient(180deg, #FFF6EE 0%, #FFFFFF 100%); }

.sec-head { text-align: center; max-width: 760px; margin: 0 auto 52px; }
.sec-head__kicker {
  display: inline-block;
  background: var(--brand-bg);
  border: 1px solid var(--brand-bd);
  color: var(--brand-ink);
  font-size: 13.5px;
  font-weight: 700;
  padding: 5px 16px;
  border-radius: 999px;
  margin-bottom: 16px;
}
.sec-head h2 {
  font-size: clamp(26px, 3.6vw, 40px);
  margin-bottom: 14px;
}
.sec-head h2 em {
  font-style: normal;
  color: var(--brand);
}
.sec-head p {
  color: var(--t3);
  font-size: 16.5px;
}

/* ---------- 6. Hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(1100px 520px at 78% -8%, #FFE9DC 0%, rgba(255, 233, 220, 0) 62%),
    radial-gradient(900px 460px at 8% 8%, #FFEFF2 0%, rgba(255, 239, 242, 0) 60%),
    linear-gradient(180deg, #FFFCFA 0%, #FFFFFF 100%);
  padding: 76px 0 84px;
}
.hero__grid {
  display: grid;
  grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
  gap: 48px;
  align-items: center;
}
.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #fff;
  border: 1.5px solid var(--or-bd);
  color: var(--or-d);
  font-size: 13.5px;
  font-weight: 700;
  padding: 6px 18px;
  border-radius: 999px;
  margin-bottom: 22px;
}
.hero__badge::before {
  content: "";
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--brand);
}
.hero h1 {
  font-size: clamp(26px, 3.6vw, 46px);
  line-height: 1.3;
  margin-bottom: 18px;
}
/* 两行标题：行内块级元素强制分行，避免词组被拆断 */
.hero h1 .hero__l1,
.hero h1 .hero__l2 { display: block; }
.hero h1 em {
  font-style: normal;
  color: var(--brand);
  white-space: nowrap;
  /* 用渐变做下划线高亮：跨行时也能正确显示，不会错位 */
  background-image: linear-gradient(transparent 70%, rgba(230, 57, 70, 0.17) 70%);
  background-repeat: no-repeat;
}
.hero__sub {
  font-size: clamp(16px, 1.8vw, 19px);
  color: var(--t3);
  margin-bottom: 26px;
}
.hero__sub b { color: var(--t1); }

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 30px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 999px;
  padding: 14px 30px;
  font-size: 16px;
  font-weight: 700;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}
.btn:hover { text-decoration: none; transform: translateY(-2px); }
.btn--primary {
  background: var(--brand-ink);
  color: #fff;
  box-shadow: 0 6px 20px rgba(230, 57, 70, 0.3);
}
.btn--primary:hover { background: #cf2d3a; }
.btn--ghost {
  background: #fff;
  color: var(--t1);
  border-color: var(--line2);
}
.btn--ghost:hover { border-color: var(--brand); color: var(--brand-ink); }

/* 上线福利条 + 费用条（口径逐字沿用交付包） */
.hero__note {
  border-radius: var(--r);
  border: 1.5px solid var(--brand-bd);
  border-left: 6px solid var(--brand);
  background: #fff;
  padding: 14px 20px;
  margin-bottom: 12px;
  font-size: 15px;
}
.hero__note b { color: var(--brand-ink); font-weight: 800; }
.tagline {
  display: inline-block;
  background: var(--brand-ink);
  color: #fff;
  font-size: 12.5px;
  font-weight: 800;
  padding: 4px 13px;
  border-radius: 999px;
  margin-right: 10px;
  vertical-align: 2px;
}
.fee {
  border-radius: var(--r);
  border: 1.5px solid var(--or-bd);
  background: var(--or-bg);
  padding: 16px 22px;
  font-size: 15px;
}
.fee b { color: var(--or-d); font-weight: 800; }
.fee__sub {
  color: #8A6A55;
  font-size: 13.5px;
  font-weight: 600;
  margin-top: 4px;
}

.hero__visual { position: relative; }
.hero__pair {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: 4px;
}
.hero__pair img {
  filter: drop-shadow(0 22px 40px rgba(31, 31, 39, 0.16));
}
.hero__usb {
  width: 34%;
  max-width: 160px;
  transform: rotate(-12deg);
  margin-bottom: 12%;
}
.hero__lobster {
  width: 66%;
  max-width: 320px;
}
.hero__float {
  position: absolute;
  background: #fff;
  border-radius: 14px;
  box-shadow: var(--shadow-h);
  padding: 11px 17px;
  font-size: 13.5px;
  font-weight: 700;
  color: var(--t1);
  border: 1px solid var(--line);
}
.hero__float span { display: block; font-size: 11.5px; color: var(--t4); font-weight: 600; }
.hero__float--a { top: 6%; left: -4%; }
.hero__float--b { bottom: 12%; right: -4%; }

/* 数据条 */
.stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--r);
  overflow: hidden;
  margin-top: 60px;
}
.stat { background: #fff; padding: 26px 18px; text-align: center; }
.stat b {
  display: block;
  font-size: clamp(26px, 3.4vw, 38px);
  color: var(--brand);
  font-weight: 800;
  line-height: 1.2;
}
.stat span { font-size: 14px; color: var(--t3); font-weight: 600; }

/* ---------- 7. 六道坎 ---------- */
.hurdles {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
}
.hurdle {
  display: grid;
  grid-template-columns: 1fr 22px 1fr;
  gap: 0;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: 20px 18px;
  box-shadow: var(--shadow);
  align-items: stretch;
}
.hurdle__no {
  display: inline-block;
  background: var(--or);
  color: #fff;
  font-size: 12px;
  font-weight: 800;
  padding: 3px 12px;
  border-radius: 999px;
  margin-bottom: 10px;
}
.hurdle__bad {
  background: var(--or-bg);
  border: 1px solid var(--or-bd);
  border-radius: var(--r-s);
  padding: 12px 13px;
}
.hurdle__bad b { display: block; color: var(--or-d); font-size: 16px; font-weight: 800; }
.hurdle__bad .hurdle__desc { font-size: 13px; color: #8A6A55; font-weight: 600; }
.hurdle__arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--line2);
  font-weight: 800;
}
.hurdle__good {
  background: var(--gn-bg);
  border: 1px solid var(--gn-bd);
  border-radius: var(--r-s);
  padding: 12px 13px;
}
.hurdle__good b { display: block; color: var(--gn-d); font-size: 16px; font-weight: 800; }
.hurdle__good .hurdle__desc { font-size: 13px; color: var(--gn-d); font-weight: 600; }

/* ---------- 8. 五大板块 ---------- */
.boards { display: grid; gap: 26px; }
.board {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r);
  overflow: hidden;
  box-shadow: var(--shadow);
}
.board__head {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  padding: 22px 26px;
  border-bottom: 1px solid var(--line);
  background: linear-gradient(90deg, var(--brand-bg), #fff 70%);
}
.board__no {
  width: 46px; height: 46px;
  flex: 0 0 auto;
  border-radius: 12px;
  background: var(--brand-ink);
  color: #fff;
  display: grid;
  place-items: center;
  font-size: 19px;
  font-weight: 800;
}
.board__title { flex: 1 1 240px; min-width: 0; }
.board__title h3 { font-size: 23px; color: var(--t1); }
.board__title p { font-size: 14px; color: var(--t3); font-weight: 600; }
.board__tag {
  font-size: 12.5px;
  font-weight: 800;
  color: var(--t1);
  background: #fff;
  border: 2px solid #E4E4E8;
  border-radius: 999px;
  padding: 5px 15px;
  white-space: nowrap;
}
.board__body { padding: 24px 26px 26px; }

.pain {
  display: grid;
  grid-template-columns: 1fr 26px 1fr;
  align-items: center;
  gap: 0;
  margin-bottom: 22px;
}
.pain__box { border-radius: var(--r-s); padding: 15px 17px; }
.pain__box--bad { background: var(--or-bg); border: 1px solid var(--or-bd); }
.pain__box--good { background: var(--gn-bg); border: 1px solid var(--gn-bd); }
.pain__box b { display: block; font-size: 16.5px; font-weight: 800; margin-bottom: 3px; }
.pain__box--bad b { color: var(--or-d); }
.pain__box--good b { color: var(--gn-d); }
.pain__box p { font-size: 14px; color: #6B5A4E; }
.pain__box--good p { color: var(--gn-d); }
.pain__arrow { text-align: center; color: var(--line2); font-weight: 800; }

.caps { display: grid; grid-template-columns: repeat(2, 1fr); gap: 14px; margin-bottom: 20px; }
.cap {
  border: 1px solid var(--line);
  border-left: 4px solid var(--or);
  border-radius: var(--r-s);
  padding: 13px 16px;
  background: #fff;
}
.cap b { display: block; font-size: 16px; color: var(--t1); font-weight: 800; }
.cap b i {
  font-style: normal;
  color: var(--brand-ink);
  font-weight: 800;
  margin-right: 7px;
  font-size: 14px;
}
.cap span { font-size: 13.5px; color: var(--t3); }

.bars { display: grid; gap: 12px; }
.bar {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  border-radius: var(--r-s);
  padding: 14px 18px;
  font-size: 15px;
  font-weight: 700;
  color: var(--t1);
}
.bar__label {
  flex: 0 0 auto;
  color: #fff;
  font-size: 13.5px;
  font-weight: 800;
  padding: 3px 13px;
  border-radius: 999px;
  white-space: nowrap;
  margin-top: 1px;
}
.bar--or { background: var(--or-bg); border: 1px solid var(--or-bd); }
.bar--or .bar__label { background: var(--or); }
.bar--gn { background: var(--gn-bg); border: 1px solid var(--gn-bd); }
.bar--gn .bar__label { background: var(--gn); }
.bar--bd { background: #fff; border: 1.5px solid var(--line2); }
.bar--bd .bar__label { background: var(--or); }
.bar em { font-style: normal; color: var(--or-d); font-weight: 800; }
.bar--gn em { color: var(--gn-d); }

/* ---------- 9. 20 智能体 ---------- */
.agents {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 20px;
}
.agent {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r);
  overflow: hidden;
  box-shadow: var(--shadow);
}
.agent__head {
  background: var(--or);
  color: #fff;
  padding: 14px 18px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  font-size: 17px;
  font-weight: 800;
}
.agent:nth-child(2) .agent__head { background: var(--or); }
.agent:nth-child(3) .agent__head { background: var(--or); }
.agent:nth-child(4) .agent__head { background: var(--gn); }
.agent:nth-child(5) .agent__head { background: var(--or); }
.agent__count {
  font-size: 12.5px;
  font-weight: 700;
  background: rgba(255, 255, 255, 0.22);
  padding: 3px 11px;
  border-radius: 999px;
}
.agent ul { padding: 14px 18px 16px; display: grid; gap: 2px; }
.agent li {
  padding: 9px 0 9px 20px;
  position: relative;
  font-size: 15.5px;
  font-weight: 600;
  color: var(--t1);
  border-bottom: 1px solid var(--line);
}
.agent li:last-child { border-bottom: 0; }
.agent li::before {
  content: "";
  position: absolute;
  left: 0; top: 15px;
  width: 8px; height: 8px;
  border-radius: 2px;
  background: var(--or);
}
.agent:nth-child(4) li::before { background: var(--gn); }

/* ---------- 10. 五种人 ---------- */
.personas {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 18px;
}
.persona {
  background: #fff;
  border: 1px solid var(--line);
  border-left: 6px solid var(--or);
  border-radius: var(--r);
  padding: 22px 20px;
  box-shadow: var(--shadow);
}
.persona:nth-child(2n) { border-left-color: var(--gn); }
.persona__no {
  width: 32px; height: 32px;
  border-radius: 50%;
  background: var(--or);
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 15px;
  margin-bottom: 12px;
}
.persona:nth-child(2n) .persona__no { background: var(--gn); }
.persona h3 { font-size: 20px; margin-bottom: 10px; }
.persona p { font-size: 13.8px; color: var(--t3); margin-bottom: 12px; }
.persona b { display: block; color: var(--t1); font-size: 15.5px; font-weight: 800; }

/* ---------- 11. 升级 ---------- */
/* 三张卡是并列关系（都是「会升级」），不是三个不同状态 →
   顶部边框 + 标题胶囊统一橘红 --or，底部「你这边」提示行统一深橘 --or-d，
   与交付包《五大板块自动升级海报》2026-11-01 定稿完全一致。
   改前：卡1 品牌红 / 卡2 橘红 / 卡3 灰，三色并置会把并列关系读成三种状态。 */
.upgrade { display: grid; grid-template-columns: repeat(auto-fit, minmax(270px, 1fr)); gap: 20px; margin-bottom: 30px; }
.upg {
  background: #fff;
  border: 1px solid var(--line);
  border-top: 5px solid var(--or);
  border-radius: var(--r);
  padding: 22px 20px;
  box-shadow: var(--shadow);
}
.upg__label {
  display: inline-block;
  font-size: 12.5px;
  font-weight: 800;
  color: #fff;
  background: var(--or);
  padding: 3px 12px;
  border-radius: 999px;
  margin-bottom: 12px;
}
.upg h3 { font-size: 19px; margin-bottom: 8px; }
.upg p { font-size: 14px; color: var(--t3); margin-bottom: 10px; }
.upg__you {
  font-size: 13.5px;
  font-weight: 800;
  color: var(--or-d);
  background: var(--or-bg);
  border-radius: 6px;
  padding: 5px 11px;
  display: inline-block;
}

.upd-list { display: grid; gap: 10px; margin-bottom: 22px; }
.upd-row {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  background: #fff;
  border: 1px solid var(--line);
  border-left: 5px solid var(--or);
  border-radius: var(--r-s);
  padding: 14px 18px;
}
.upd-row__name { font-weight: 800; color: var(--t1); font-size: 16px; flex: 0 0 auto; }
.upd-row__desc { color: var(--t3); font-size: 14.5px; flex: 1 1 240px; }
.upd-row__flag {
  font-size: 12px;
  font-weight: 800;
  color: var(--or-d);
  background: var(--or-bg);
  border: 1px solid var(--or-bd);
  padding: 3px 11px;
  border-radius: 999px;
  white-space: nowrap;
}
.noworry { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 14px; }
.noworry div {
  background: var(--gn-bg);
  border: 1px solid var(--gn-bd);
  border-radius: var(--r-s);
  padding: 15px 18px;
}
.noworry b { display: block; color: var(--gn-d); font-size: 16px; font-weight: 800; margin-bottom: 3px; }
.noworry span { font-size: 13.8px; color: var(--gn-d); }

/* ---------- 12. 操作 9 步 ---------- */
.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 16px;
  counter-reset: step;
}
.step {
  position: relative;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: 22px 20px 20px;
  box-shadow: var(--shadow);
}
.step::before {
  counter-increment: step;
  content: counter(step);
  display: grid;
  place-items: center;
  width: 34px; height: 34px;
  border-radius: 10px;
  background: var(--brand-ink);
  color: #fff;
  font-weight: 800;
  font-size: 16px;
  margin-bottom: 12px;
}
.step h3 { font-size: 18px; margin-bottom: 6px; }
.step p { font-size: 14px; color: var(--t3); }
.step--star { border-color: var(--brand); box-shadow: 0 0 0 3px var(--brand-bg); }
.step__star {
  display: inline-block;
  margin-top: 10px;
  font-size: 12px;
  font-weight: 800;
  color: var(--brand-ink);
  background: var(--brand-bg);
  border-radius: 999px;
  padding: 3px 10px;
}

.prepare {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 14px;
  margin-bottom: 26px;
}
.prepare div {
  background: var(--bg2);
  border: 1px solid var(--line);
  border-radius: var(--r-s);
  padding: 15px 18px;
  font-size: 14.5px;
  color: var(--t1);
  font-weight: 700;
}
.prepare div b { color: var(--brand-ink); margin-right: 8px; }
.prepare div span { display: block; font-weight: 500; color: var(--t3); font-size: 13.5px; margin-top: 2px; }

/* 成果存储 */
.outcome {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
  margin-top: 30px;
}
.outcome__card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: 22px 20px;
  box-shadow: var(--shadow);
}
.outcome__card h3 { font-size: 17px; margin-bottom: 12px; }
.outcome__card code {
  display: block;
  background: var(--bg2);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 9px 13px;
  font-family: "Cascadia Mono", Consolas, monospace;
  font-size: 14px;
  color: var(--t1);
  margin: 6px 0;
}
.outcome__card p { font-size: 13.8px; color: var(--t3); }
.outcome__card .hint { color: var(--gn-d); font-weight: 700; margin-top: 8px; }

/* ---------- 13. FAQ ---------- */
.faq { display: grid; gap: 12px; max-width: 900px; margin-inline: auto; }
.faq details {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r-s);
  overflow: hidden;
}
.faq summary {
  cursor: pointer;
  padding: 17px 22px;
  font-weight: 800;
  color: var(--t1);
  font-size: 16px;
  list-style: none;
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+";
  font-size: 24px;
  color: var(--brand);
  font-weight: 700;
  line-height: 1;
  flex: 0 0 auto;
}
.faq details[open] summary::after { content: "−"; }
.faq summary:hover { background: var(--bg2); }
.faq__body {
  padding: 0 22px 18px;
  color: var(--t3);
  font-size: 15px;
  border-top: 1px solid var(--line);
  padding-top: 15px;
}
.faq__body b { color: var(--t1); }
.faq__body code {
  background: var(--bg2);
  border-radius: 4px;
  padding: 1px 7px;
  font-family: "Cascadia Mono", Consolas, monospace;
  font-size: 13.5px;
  color: var(--t1);
}

/* ---------- 14. 海报墙 ---------- */
.gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 18px;
}
.shot {
  display: block;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.shot:hover { transform: translateY(-4px); box-shadow: var(--shadow-h); text-decoration: none; }
.shot img {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  object-position: top center;
}
.shot__cap {
  padding: 12px 14px;
  font-size: 13.5px;
  font-weight: 700;
  color: var(--t1);
  border-top: 1px solid var(--line);
}

/* ---------- 15. 转化区 ---------- */
.cta {
  background:
    radial-gradient(760px 340px at 20% 0%, rgba(255, 255, 255, 0.16), transparent 60%),
    linear-gradient(135deg, #A81F2A 0%, #C22733 48%, #D43B47 100%);
  color: #fff;
  border-radius: 26px;
  padding: 52px 40px;
  text-align: center;
  box-shadow: 0 20px 50px rgba(168, 31, 42, 0.28);
}
.cta h2 { color: #fff; font-size: clamp(26px, 3.6vw, 40px); margin-bottom: 14px; }
.cta p { color: rgba(255, 255, 255, 0.94); font-size: 17px; max-width: 620px; margin: 0 auto 26px; }
.cta__price {
  font-size: clamp(40px, 6vw, 62px);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 4px;
}
.cta__price small { font-size: 20px; font-weight: 700; }
.cta__per { opacity: 0.92; font-size: 15px; margin-bottom: 26px; }
.cta .btn--primary {
  background: #fff;
  color: var(--brand);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.16);
}
.cta .btn--primary:hover { background: #fff5f6; }
.cta .btn--ghost {
  background: transparent;
  color: #fff;
  border-color: rgba(255, 255, 255, 0.6);
}
.cta .btn--ghost:hover { background: rgba(255, 255, 255, 0.14); color: #fff; border-color: #fff; }
.cta__actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }
.cta__legal {
  margin-top: 26px;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.86);
  border-top: 1px solid rgba(255, 255, 255, 0.28);
  padding-top: 18px;
}

/* ---------- 16. 页脚 ---------- */
.footer {
  background: var(--t1);
  color: #C9C9D0;
  padding: 52px 0 28px;
  margin-top: 0;
}
.footer__grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr 1fr;
  gap: 32px;
  padding-bottom: 30px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.13);
}
.footer h3 { color: #fff; font-size: 15px; margin-bottom: 14px; }
.footer li { font-size: 13.8px; margin-bottom: 8px; }
.footer a { color: #C9C9D0; }
.footer a:hover { color: #fff; }
.footer__brand { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; }
.footer__brand img { width: 36px; height: 36px; background: #fff; border-radius: 9px; padding: 3px; }
.footer__brand b { color: #fff; font-size: 17px; }
.footer__bottom {
  padding-top: 20px;
  font-size: 12.8px;
  color: #97979F;
  display: flex;
  justify-content: space-between;
  gap: 14px;
  flex-wrap: wrap;
}

/* ---------- 17. 招商（省代理 / 市代理） ---------- */
.agents-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 22px;
  margin-bottom: 30px;
}
.agent-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r);
  overflow: hidden;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
}
.agent-card__head {
  padding: 22px 24px 18px;
  background: linear-gradient(135deg, #fff 55%, var(--brand-bg));
  border-bottom: 1px solid var(--line);
}
.agent-card__lv {
  display: inline-block;
  font-size: 12.5px;
  font-weight: 800;
  color: #fff;
  background: var(--brand-ink);
  padding: 4px 13px;
  border-radius: 999px;
  margin-bottom: 11px;
}
.agent-card--city .agent-card__lv { background: var(--or); }
.agent-card__head h3 {
  font-size: 23px;
  margin-bottom: 6px;
}
.agent-card__head p {
  font-size: 14px;
  color: var(--t3);
  font-weight: 600;
}
.agent-card__body { padding: 20px 24px 24px; flex: 1; display: flex; flex-direction: column; }
.agent-card__body h4 {
  font-size: 14.5px;
  color: var(--t1);
  margin-bottom: 10px;
  padding-bottom: 7px;
  border-bottom: 1px solid var(--line);
}
.agent-card__body ul { display: grid; gap: 9px; margin-bottom: 18px; }
.agent-card__body li {
  position: relative;
  padding-left: 20px;
  font-size: 14.2px;
  color: var(--t3);
  line-height: 1.65;
}
.agent-card__body li::before {
  content: "";
  position: absolute;
  left: 2px; top: 9px;
  width: 7px; height: 7px;
  border-radius: 2px;
  background: var(--brand);
}
.agent-card--city .agent-card__body li::before { background: var(--or); }
.agent-card__body li b { color: var(--t1); font-weight: 700; }
.agent-card__tag {
  margin-top: auto;
  background: var(--bg2);
  border: 1px dashed var(--line2);
  border-radius: var(--r-s);
  padding: 12px 15px;
  font-size: 13.2px;
  color: var(--t4);
  font-weight: 600;
  line-height: 1.7;
}
.agent-card__tag b { color: var(--brand-ink); font-weight: 800; }
.agent-card--city .agent-card__tag b { color: var(--or-d); }

.partner-steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 16px;
  margin-top: 8px;
}
.pstep {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: 20px 18px;
  position: relative;
}
.pstep__no {
  width: 30px; height: 30px;
  border-radius: 9px;
  background: var(--or);
  color: #fff;
  display: grid;
  place-items: center;
  font-size: 14px;
  font-weight: 800;
  margin-bottom: 11px;
}
.pstep h4 { font-size: 16.5px; margin-bottom: 5px; }
.pstep p { font-size: 13.8px; color: var(--t3); }

/* ---------- 18. 社群入口 ---------- */
.community {
  display: grid;
  grid-template-columns: minmax(0, 320px) minmax(0, 1fr);
  gap: 44px;
  align-items: center;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 24px;
  padding: 38px 40px;
  box-shadow: var(--shadow-h);
}
.qr {
  text-align: center;
}
.qr__img {
  width: 100%;
  max-width: 260px;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 10px;
  background: #fff;
}
.qr__cap {
  margin-top: 13px;
  font-size: 13.5px;
  font-weight: 800;
  color: var(--t1);
}
.qr__tip {
  margin-top: 5px;
  font-size: 12.5px;
  color: var(--t4);
  line-height: 1.6;
}
/* 免责说明：法律声明，需醒目但不抢主体 */
.qr__note {
  display: inline-block;
  margin-top: 14px;
  padding: 8px 15px;
  border-radius: 999px;
  background: var(--bg2);
  border: 1px solid var(--line);
  font-size: 12.5px;
  font-weight: 700;
  color: var(--t3);
  line-height: 1.5;
}
.community__body h3 {
  font-size: clamp(23px, 3vw, 30px);
  margin-bottom: 12px;
}
.community__body > p {
  font-size: 16px;
  color: var(--t3);
  margin-bottom: 22px;
}
.community__list {
  display: grid;
  gap: 13px;
  margin-bottom: 24px;
}
.community__list li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  font-size: 15px;
  color: var(--t2);
  line-height: 1.7;
}
.community__list li b { color: var(--t1); font-weight: 800; }
.community__list .ci {
  flex: 0 0 auto;
  width: 26px; height: 26px;
  border-radius: 8px;
  background: var(--gn-bg);
  border: 1px solid var(--gn-bd);
  color: var(--gn-d);
  display: grid;
  place-items: center;
  font-size: 13px;
  font-weight: 800;
  margin-top: 2px;
}
.community__actions { display: flex; flex-wrap: wrap; gap: 13px; }

/* ---------- 19. 海报灯箱 ---------- */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 300;
  background: rgba(20, 20, 26, 0.9);
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
  padding: 40px 24px;
}
.lightbox.is-open { display: flex; }
.lightbox img {
  max-width: min(92vw, 620px);
  max-height: 78vh;
  width: auto;
  border-radius: 10px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}
.lightbox__cap {
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  text-align: center;
}
.lightbox__close {
  position: absolute;
  top: 18px;
  right: 22px;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  border: 0;
  background: rgba(255, 255, 255, 0.16);
  color: #fff;
  font-size: 30px;
  line-height: 1;
  cursor: pointer;
}
.lightbox__close:hover { background: rgba(255, 255, 255, 0.3); }

/* ---------- 20. 响应式 ---------- */
@media (max-width: 1024px) {
  .hero__grid { grid-template-columns: 1fr; gap: 36px; }
  .hero__visual { order: -1; }
  .hero__usb { max-width: 120px; }
  .hero__lobster { max-width: 260px; }
  .hero__float--a { left: 0; top: -4%; }
  .hero__float--b { right: 0; bottom: -2%; }
  .footer__grid { grid-template-columns: 1fr 1fr; }  .community { grid-template-columns: 1fr; gap: 30px; padding: 32px 28px; }
  .qr__img { max-width: 230px; }
}

@media (max-width: 780px) {
  html { scroll-padding-top: 72px; }
  .section { padding: 58px 0; }
  .sec-head { margin-bottom: 36px; }
  .wrap { width: min(100% - 32px, var(--wrap)); }

  /* 移动端标题同样保持两行结构 */
  .hero h1 .hero__l1,
  .hero h1 .hero__l2 { display: block; }

  .nav__inner { min-height: 58px; gap: 10px; }
  .nav__links {
    position: absolute;
    top: 100%;
    left: 0; right: 0;
    background: #fff;
    border-bottom: 1px solid var(--line);
    flex-direction: column;
    gap: 0;
    padding: 6px 16px 14px;
    box-shadow: var(--shadow-h);
    display: none;
  }
  .nav__links.is-open { display: flex; }
  .nav__links a { padding: 11px 10px; font-size: 15.5px; }
  .nav__cta { text-align: center; }
  .nav__toggle {
    margin-left: auto;
    width: 42px; height: 42px;
    border: 1px solid var(--line2);
    background: #fff;
    border-radius: 10px;
    cursor: pointer;
    display: grid;
    place-items: center;
  }
  .nav__toggle span,
  .nav__toggle span::before,
  .nav__toggle span::after {
    display: block;
    width: 18px; height: 2px;
    background: var(--t1);
    border-radius: 2px;
    position: relative;
  }
  .nav__toggle span::before { content: ""; position: absolute; top: -6px; }
  .nav__toggle span::after { content: ""; position: absolute; top: 6px; }
  .nav__toggle[aria-expanded="true"] span { background: transparent; }
  .nav__toggle[aria-expanded="true"] span::before { top: 0; transform: rotate(45deg); }
  .nav__toggle[aria-expanded="true"] span::after { top: 0; transform: rotate(-45deg); }

  .stats { grid-template-columns: repeat(2, 1fr); margin-top: 40px; }
  .hero { padding: 48px 0 60px; }
  .hero__actions .btn { flex: 1 1 100%; }
  .hero__visual { overflow: visible; padding: 0 4px; }
  .hero__pair {
    flex-direction: row;
    align-items: flex-end;
    gap: 0;
    max-width: 300px;
    margin-inline: auto;
  }
  .hero__usb { width: 34%; max-width: 105px; margin-bottom: 10%; }
  .hero__lobster { width: 66%; max-width: 190px; }
  .hero__float {
    position: static;
    display: inline-block;
    margin: 12px 3px 0;
    font-size: 12.5px;
    padding: 9px 13px;
  }
  .hero__float--a { margin-bottom: 0; }
  .hero__float--b { margin-top: 8px; }

  .hurdle { grid-template-columns: 1fr; gap: 10px; }
  .hurdle__arrow { transform: rotate(90deg); height: 18px; }
  .pain { grid-template-columns: 1fr; gap: 10px; }
  .pain__arrow { transform: rotate(90deg); height: 18px; }
  .board__head { padding: 18px; }
  .board__body { padding: 18px; }
  .caps { grid-template-columns: 1fr; }
  .bar { flex-direction: column; gap: 8px; }
  .cta { padding: 38px 20px; border-radius: 20px; }
  .footer__grid { grid-template-columns: 1fr; gap: 26px; }
  .footer__bottom { flex-direction: column; }

  .community { padding: 26px 20px; border-radius: 18px; }
  .community__actions .btn { flex: 1 1 100%; }
  .agent-card__head { padding: 18px 18px 15px; }
  .agent-card__body { padding: 16px 18px 20px; }
}

@media (max-width: 460px) {
  .gallery { grid-template-columns: repeat(2, 1fr); gap: 12px; }
  .shot__cap { font-size: 12.5px; padding: 10px; }
}

/* ---------- 21. 动效与打印 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

@media print {
  .nav, .hero__actions, .cta__actions, .skip-link { display: none; }
  body { color: #000; }
  .section { padding: 20px 0; page-break-inside: avoid; }
}