@font-face {
  font-family: "MiSans";
  src: url("fonts/MiSans-Regular.ttf") format("truetype");
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "MiSans";
  src: url("fonts/MiSans-Semibold.ttf") format("truetype");
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "MiSans";
  src: url("fonts/MiSans-Semibold.ttf") format("truetype");
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: "MiSans";
  src: url("fonts/MiSans-Bold.ttf") format("truetype");
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

:root {
  --paper: #f7f4ec;
  --paper-soft: #fbf9f3;
  --ink: #17231d;
  --ink-2: #45544c;
  --muted: #7b887f;
  --green: #1f5c43;
  --green-2: #2a7a5a;
  --mint: #18a66b;
  --line: rgba(23, 35, 29, 0.1);
  --line-soft: rgba(23, 35, 29, 0.06);
  --radius: 20px;
  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "MiSans", -apple-system, BlinkMacSystemFont, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

::selection { background: rgba(31, 92, 67, 0.16); }

a { color: inherit; text-decoration: none; }
button { font: inherit; }

h1, h2, h3, p, ul { margin: 0; }
ul { padding: 0; list-style: none; }
svg { display: block; }

:focus-visible {
  outline: 2px solid var(--green);
  outline-offset: 3px;
  border-radius: 6px;
}

.wrap {
  width: min(1180px, calc(100% - 48px));
  margin-inline: auto;
}

/* ---------- 顶部进度条与导航 ---------- */

.progress {
  position: fixed;
  inset: 0 auto auto 0;
  height: 2px;
  width: 100%;
  background: var(--green);
  transform: scaleX(0);
  transform-origin: 0 50%;
  z-index: 60;
  pointer-events: none;
}

.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  border-bottom: 1px solid transparent;
  transition: background 0.35s, border-color 0.35s, backdrop-filter 0.35s;
}

.nav.scrolled {
  background: rgba(247, 244, 236, 0.76);
  backdrop-filter: saturate(1.4) blur(16px);
  -webkit-backdrop-filter: saturate(1.4) blur(16px);
  border-bottom-color: var(--line-soft);
}

.nav-inner {
  display: flex;
  align-items: center;
  gap: 32px;
  height: 70px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.brand-mark svg { transition: transform 0.4s var(--ease); }
.brand:hover .brand-mark svg { transform: rotate(-6deg) scale(1.04); }

.brand-name { font-size: 17px; }

.nav-links {
  display: flex;
  gap: 26px;
  margin-left: auto;
  font-size: 14px;
  color: var(--ink-2);
}

.nav-links a {
  position: relative;
  padding: 4px 0;
  transition: color 0.25s;
}

.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 1px;
  background: var(--green);
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform 0.35s var(--ease);
}

.nav-links a:hover { color: var(--green); }
.nav-links a:hover::after { transform: scaleX(1); }

/* ---------- 按钮 ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  border: 1px solid transparent;
  border-radius: 999px;
  padding: 12px 22px;
  font-size: 14px;
  font-weight: 600;
  line-height: 1.2;
  cursor: pointer;
  transition: transform 0.3s var(--ease), box-shadow 0.3s, background 0.3s, border-color 0.3s;
  will-change: transform;
}

.btn-lg { padding: 15px 27px; font-size: 15px; }
.btn-sm { padding: 9px 18px; font-size: 13.5px; }

.btn .i {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.8;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.btn-primary {
  background: var(--green);
  color: var(--paper);
  box-shadow: 0 14px 30px -18px rgba(31, 92, 67, 0.8);
}

.btn-primary:hover {
  background: var(--green-2);
  transform: translateY(-2px);
  box-shadow: 0 20px 36px -18px rgba(31, 92, 67, 0.7);
}

.btn-primary:active { transform: translateY(0) scale(0.985); }

.btn-ghost {
  background: rgba(255, 255, 255, 0.72);
  border-color: var(--line);
  color: var(--ink);
}

.btn-ghost:hover {
  background: #fff;
  transform: translateY(-2px);
  box-shadow: 0 16px 30px -22px rgba(23, 35, 29, 0.5);
}

.btn-ghost .arrow {
  display: inline-block;
  transition: transform 0.3s var(--ease);
}

.btn-ghost:hover .arrow { transform: translateX(3px); }

/* ---------- 首屏 ---------- */

.hero {
  position: relative;
  padding: 158px 0 96px;
  overflow: hidden;
}

.hero-glow {
  position: absolute;
  top: -260px;
  right: -160px;
  width: 820px;
  height: 820px;
  background: radial-gradient(circle at var(--gx, 55%) var(--gy, 45%), rgba(24, 166, 107, 0.15), rgba(24, 166, 107, 0) 62%);
  pointer-events: none;
  transition: background 0.5s ease-out;
}

.hero-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.04fr 0.96fr;
  gap: 40px;
  align-items: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.14em;
  color: var(--green);
}

.eyebrow::before {
  content: "";
  width: 16px;
  height: 2px;
  border-radius: 2px;
  background: var(--mint);
}

.hero h1 {
  margin: 20px 0 22px;
  font-size: clamp(40px, 5.1vw, 64px);
  line-height: 1.16;
  font-weight: 700;
  letter-spacing: -0.025em;
}

.mark {
  position: relative;
  display: inline-block;
  color: var(--green);
}

.scribble {
  position: absolute;
  left: 1%;
  bottom: -0.06em;
  width: 100%;
  height: 0.2em;
  fill: none;
  stroke: var(--mint);
  stroke-width: 7;
  stroke-linecap: round;
  opacity: 0.75;
}

.scribble path {
  stroke-dasharray: 240;
  stroke-dashoffset: 240;
}

.is-in .scribble path {
  animation: draw 0.9s 0.4s var(--ease) forwards;
}

@keyframes draw { to { stroke-dashoffset: 0; } }

.lede {
  max-width: 33em;
  font-size: 16.5px;
  line-height: 1.85;
  color: var(--ink-2);
}

.cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.meta {
  display: flex;
  align-items: center;
  gap: 11px;
  margin-top: 20px;
  font-size: 13px;
  color: var(--muted);
}

.meta i {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: currentColor;
  opacity: 0.55;
}

/* 手机模型 */

.hero-visual {
  position: relative;
  display: grid;
  place-items: center;
  padding: 6px 0 18px;
}

.phone {
  --py: 0px;
  width: 292px;
  max-width: 100%;
  height: 627px;
  padding: 9px;
  border-radius: 46px;
  background: #14201a;
  box-shadow:
    0 50px 90px -42px rgba(23, 35, 29, 0.55),
    0 18px 40px -28px rgba(23, 35, 29, 0.4),
    inset 0 0 0 1px rgba(255, 255, 255, 0.08);
  transform: rotate(-1.4deg) translateY(var(--py));
  transition: transform 0.6s var(--ease);
}

.phone:hover { transform: rotate(0deg) translateY(var(--py)); }

.phone-screen {
  position: relative;
  height: 100%;
  border-radius: 38px;
  background: var(--paper);
  overflow: hidden;
}

.phone-shot {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.chips {
  display: flex;
  gap: 7px;
  padding-bottom: 13px;
  overflow: hidden;
}

.chip {
  flex: 0 0 auto;
  padding: 5px 11px;
  border-radius: 999px;
  background: rgba(23, 35, 29, 0.05);
  color: var(--ink-2);
  font-size: 11px;
  white-space: nowrap;
}

.chip.on { background: var(--green); color: var(--paper); }

.app-icon {
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  width: 38px;
  height: 38px;
  border-radius: 12px;
  color: #fff;
  font-size: 15px;
  font-weight: 700;
}

.ic-a { background: linear-gradient(145deg, #35b07c, #1f5c43); }
.ic-b { background: linear-gradient(145deg, #3d5b78, #1e3243); }
.ic-c { background: linear-gradient(145deg, #d08a54, #8a4a2a); }
.ic-d { background: linear-gradient(145deg, #5b6a61, #25302a); }

/* 浮动小卡 */

.float-card {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.86);
  border: 1px solid rgba(255, 255, 255, 0.85);
  box-shadow: 0 24px 44px -26px rgba(23, 35, 29, 0.5);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  animation: float 7s ease-in-out infinite;
  white-space: nowrap;
}

.fc-a { top: 7%; left: -54px; }

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-9px); }
}

.fc-icon {
  display: grid;
  place-items: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: #e8f3ec;
  color: var(--green);
}

.fc-icon svg {
  width: 17px;
  height: 17px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.float-card strong {
  display: block;
  font-size: 12.5px;
  font-weight: 600;
  line-height: 1.4;
}

.float-card small {
  display: block;
  margin-top: 1px;
  font-size: 10.5px;
  color: var(--muted);
  line-height: 1.4;
}

/* ---------- 安全体检 ---------- */

.audit { padding: 8px 0 0; }

.audit-card {
  position: relative;
  display: grid;
  grid-template-columns: 1.04fr 0.96fr;
  gap: 52px;
  align-items: center;
  padding: 52px;
  border-radius: 32px;
  background: #fff;
  border: 1px solid rgba(31, 92, 67, 0.16);
  box-shadow: 0 50px 90px -76px rgba(23, 35, 29, 0.8);
  overflow: hidden;
}

.audit-glow {
  position: absolute;
  top: -280px;
  right: -200px;
  width: 620px;
  height: 620px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(24, 166, 107, 0.16), transparent 66%);
  pointer-events: none;
}

.audit-copy { position: relative; }

.audit-copy h2 {
  margin: 14px 0 14px;
  font-size: clamp(28px, 3.3vw, 40px);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.28;
}

.audit-lede {
  font-size: 15px;
  line-height: 1.9;
  color: var(--ink-2);
}

.audit-points {
  display: grid;
  gap: 14px;
  margin: 26px 0 30px;
}

.audit-points li {
  display: grid;
  grid-template-columns: 34px 1fr;
  gap: 13px;
  align-items: start;
}

.audit-icon {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 11px;
  background: #eaf2ec;
  color: var(--green);
}

.audit-icon svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.audit-points strong {
  display: block;
  font-size: 14.5px;
  font-weight: 600;
}

.audit-points small {
  display: block;
  margin-top: 2px;
  font-size: 13px;
  line-height: 1.75;
  color: var(--muted);
}

.audit-visual {
  position: relative;
  display: grid;
  place-items: center;
}

.report-card {
  width: 100%;
  max-width: 372px;
  padding: 22px;
  border-radius: 24px;
  background: var(--paper);
  border: 1px solid var(--line-soft);
  box-shadow: 0 30px 60px -52px rgba(23, 35, 29, 0.7);
}

.report-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
  margin-bottom: 16px;
}

.report-kicker {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.report-head h3 {
  margin-top: 3px;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.report-score {
  display: flex;
  align-items: center;
  gap: 16px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line-soft);
}

.report-score .score-ring {
  width: 92px;
  height: 92px;
}

.report-score .score-ring::before { background: var(--paper); }

.report-label {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin: 16px 0 10px;
  font-size: 11.5px;
  font-weight: 600;
  color: var(--ink-2);
}

.report-label span {
  font-size: 10.5px;
  font-weight: 400;
  color: var(--muted);
}

.report-dims { display: grid; gap: 9px; }

.dim {
  display: grid;
  grid-template-columns: 74px 1fr 20px;
  align-items: center;
  gap: 10px;
  font-size: 11.5px;
  color: var(--ink-2);
}

.dim i {
  height: 5px;
  border-radius: 999px;
  background: rgba(23, 35, 29, 0.07);
  overflow: hidden;
}

.dim b {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: var(--green-2);
}

.dim em {
  font-style: normal;
  text-align: right;
  font-variant-numeric: tabular-nums;
  color: var(--muted);
}

.report-foot {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 12px;
  margin-top: 18px;
  padding-top: 16px;
  border-top: 1px solid var(--line-soft);
  font-size: 10.5px;
  color: var(--muted);
}

/* ---------- 区块通用 ---------- */

section { scroll-margin-top: 86px; }

.features,
.screens { padding: 104px 0; }

.section-head {
  max-width: 640px;
  margin-bottom: 46px;
}

.section-head h2 {
  margin: 14px 0 14px;
  font-size: clamp(30px, 3.5vw, 42px);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.25;
}

.section-lede {
  font-size: 15.5px;
  line-height: 1.85;
  color: var(--ink-2);
}

/* ---------- 特性卡片 ---------- */

.cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.card {
  padding: 26px 24px 28px;
  border-radius: var(--radius);
  background: #fff;
  border: 1px solid var(--line-soft);
  transition: transform 0.4s var(--ease), box-shadow 0.4s, border-color 0.4s;
}

.card:hover {
  transform: translateY(-4px);
  border-color: rgba(31, 92, 67, 0.18);
  box-shadow: 0 26px 48px -36px rgba(23, 35, 29, 0.55);
}

.card-icon {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  margin-bottom: 18px;
  border-radius: 14px;
  background: #eaf2ec;
  color: var(--green);
  transition: background 0.4s var(--ease), color 0.4s, transform 0.4s var(--ease);
}

.card-icon svg {
  width: 22px;
  height: 22px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.card:hover .card-icon {
  background: var(--green);
  color: var(--paper);
  transform: rotate(-5deg) scale(1.04);
}

.card h3 {
  margin-bottom: 8px;
  font-size: 17.5px;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.card p {
  font-size: 14px;
  line-height: 1.85;
  color: var(--ink-2);
}

/* ---------- 界面示例 ---------- */

.screens {
  background: rgba(255, 255, 255, 0.42);
  border-top: 1px solid var(--line-soft);
  border-bottom: 1px solid var(--line-soft);
}

.tabs {
  display: inline-flex;
  gap: 4px;
  padding: 4px;
  margin-bottom: 26px;
  border-radius: 999px;
  background: rgba(23, 35, 29, 0.055);
}

.tab {
  border: 0;
  background: transparent;
  padding: 9px 20px;
  border-radius: 999px;
  color: var(--ink-2);
  font-size: 13.5px;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.3s, color 0.3s, box-shadow 0.3s;
}

.tab:hover { color: var(--ink); }

.tab.is-active {
  background: #fff;
  color: var(--green);
  box-shadow: 0 2px 10px rgba(23, 35, 29, 0.08);
}

.panel {
  display: grid;
  grid-template-columns: 1.02fr 0.98fr;
  gap: 56px;
  align-items: center;
  min-height: 440px;
  padding: 44px;
  border-radius: 28px;
  background: #fff;
  border: 1px solid var(--line-soft);
}

.panel[hidden] { display: none; }

.panel.is-active { animation: panel-in 0.55s var(--ease); }

@keyframes panel-in {
  from { opacity: 0; transform: translateY(14px); }
}

.panel-visual { display: grid; place-items: center; }

.mini-app {
  width: 100%;
  max-width: 344px;
  padding: 20px;
  border-radius: 24px;
  background: var(--paper);
  border: 1px solid var(--line-soft);
}

.mini-head {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 14px;
}

.mini-head h3 {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.mini-tag {
  padding: 4px 10px;
  border-radius: 999px;
  background: #eaf2ec;
  color: var(--green);
  font-size: 10.5px;
  font-weight: 600;
}

.mini-list { display: grid; gap: 7px; }

.mini-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 10px;
  border-radius: 14px;
  background: #fff;
  border: 1px solid var(--line-soft);
}

.mini-row .app-icon { width: 34px; height: 34px; border-radius: 11px; font-size: 13px; }
.mini-row strong { display: block; font-size: 12.5px; font-weight: 600; line-height: 1.4; }
.mini-row small { display: block; font-size: 10px; color: var(--muted); line-height: 1.4; }

.stars {
  margin-left: auto;
  font-size: 10px;
  letter-spacing: 0.06em;
  color: #d9a13c;
  white-space: nowrap;
}

.stars.dim { color: var(--muted); opacity: 0.5; }

.board-list { display: grid; gap: 7px; }

.board-row {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 10px;
  border-radius: 14px;
  background: #fff;
  border: 1px solid var(--line-soft);
}

.board-ic {
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  width: 34px;
  height: 34px;
  border-radius: 11px;
  background: #eaf2ec;
  color: var(--green);
  font-size: 13px;
  font-weight: 600;
}

.board-row strong { display: block; font-size: 12.5px; font-weight: 600; line-height: 1.4; }
.board-row small { display: block; font-size: 10px; color: var(--muted); line-height: 1.4; }

.board-row em {
  margin-left: auto;
  padding: 4px 11px;
  border-radius: 999px;
  border: 1px solid rgba(31, 92, 67, 0.24);
  color: var(--green);
  font-size: 10.5px;
  font-style: normal;
  white-space: nowrap;
}

.board-row.official .board-ic { background: var(--green); color: var(--paper); }
.board-row.official em { border-color: transparent; background: #eaf2ec; }

.audit-app .score {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 8px 0 16px;
}

.score-ring {
  position: relative;
  display: grid;
  grid-auto-flow: column;
  align-content: center;
  align-items: baseline;
  justify-content: center;
  width: 96px;
  height: 96px;
  flex: 0 0 auto;
  border-radius: 50%;
  background: conic-gradient(var(--green) 0 96%, rgba(23, 35, 29, 0.08) 96% 100%);
}

.score-ring::before {
  content: "";
  position: absolute;
  inset: 8px;
  border-radius: 50%;
  background: var(--paper);
}

.score-ring span {
  position: relative;
  font-size: 26px;
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1;
}

.score-ring small {
  position: relative;
  margin-left: 1px;
  font-size: 11px;
  color: var(--muted);
}

.score-copy strong { display: block; font-size: 13px; font-weight: 600; }
.score-copy small { display: block; margin-top: 3px; font-size: 11px; color: var(--muted); }

.audit-items { display: grid; gap: 6px; }

.audit-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 9px 12px;
  border-radius: 12px;
  background: #fff;
  border: 1px solid var(--line-soft);
  font-size: 12px;
}

.audit-item em { font-style: normal; font-weight: 600; }
.audit-item em.ok { color: #1f7a52; }

.panel-copy h3 {
  margin-bottom: 12px;
  font-size: 23px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.panel-copy p {
  font-size: 14.5px;
  line-height: 1.9;
  color: var(--ink-2);
}

.panel-copy ul {
  display: grid;
  gap: 10px;
  margin-top: 20px;
}

.panel-copy li {
  position: relative;
  padding-left: 22px;
  font-size: 13.5px;
  color: var(--ink-2);
}

.panel-copy li::before {
  content: "";
  position: absolute;
  left: 2px;
  top: 0.6em;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  border: 2px solid rgba(31, 92, 67, 0.35);
}

/* ---------- 下载 ---------- */

.download { padding: 96px 0 108px; }

.download-card {
  position: relative;
  display: grid;
  grid-template-columns: 1.12fr 0.88fr;
  gap: 44px;
  align-items: center;
  padding: 54px 56px;
  border-radius: 32px;
  background: var(--green);
  color: var(--paper);
  overflow: hidden;
  box-shadow: 0 50px 90px -60px rgba(31, 92, 67, 0.9);
}

.download-glow {
  position: absolute;
  top: -220px;
  right: -140px;
  width: 560px;
  height: 560px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(32, 192, 128, 0.4), transparent 64%);
  pointer-events: none;
}

.download-copy { position: relative; }

.eyebrow.light { color: #9fe0c2; }
.eyebrow.light::before { background: #9fe0c2; }

.download h2 {
  margin: 12px 0 12px;
  font-size: clamp(28px, 3.1vw, 38px);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.3;
}

.download-copy p:last-child {
  font-size: 14.5px;
  line-height: 1.85;
  color: rgba(247, 244, 236, 0.78);
}

.download-actions {
  position: relative;
  display: grid;
  gap: 11px;
}

.btn-light {
  background: var(--paper);
  color: var(--green);
}

.btn-light:hover {
  background: #fff;
  transform: translateY(-2px);
  box-shadow: 0 18px 34px -20px rgba(0, 0, 0, 0.45);
}

.btn-outline-light {
  background: rgba(255, 255, 255, 0.07);
  border-color: rgba(247, 244, 236, 0.3);
  color: var(--paper);
}

.btn-outline-light:hover {
  background: rgba(255, 255, 255, 0.13);
  transform: translateY(-2px);
}

.qq {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 13px 20px;
  border-radius: 999px;
  border: 1px solid rgba(247, 244, 236, 0.18);
  background: rgba(255, 255, 255, 0.05);
  color: var(--paper);
  font-size: 13px;
  cursor: pointer;
  transition: background 0.3s, border-color 0.3s;
}

.qq:hover { background: rgba(255, 255, 255, 0.1); }
.qq strong { font-weight: 600; letter-spacing: 0.02em; }

.qq-hint {
  font-size: 11px;
  color: rgba(247, 244, 236, 0.55);
  transition: color 0.3s;
}

.qq.copied .qq-hint { color: #9fe0c2; }

/* ---------- 页脚 ---------- */

.foot {
  border-top: 1px solid var(--line);
  padding: 32px 0 40px;
}

.foot-inner {
  display: flex;
  align-items: center;
  gap: 26px;
  flex-wrap: wrap;
}

.foot .brand-name { font-size: 14.5px; }

.foot-links {
  display: flex;
  gap: 22px;
  margin-left: auto;
  font-size: 13.5px;
  color: var(--ink-2);
}

.foot-links a { transition: color 0.25s; }
.foot-links a:hover { color: var(--green); }

.copyright {
  width: 100%;
  margin: 6px 0 0;
  font-size: 12.5px;
  color: var(--muted);
}

/* ---------- 滚动进场 ---------- */

.js [data-reveal] {
  opacity: 0;
  transform: translateY(22px);
  transition:
    opacity 0.85s var(--ease) var(--d, 0s),
    transform 0.85s var(--ease) var(--d, 0s);
}

.js [data-reveal].is-in {
  opacity: 1;
  transform: none;
}

/* ---------- 响应式 ---------- */

@media (max-width: 1060px) {
  .hero-grid { grid-template-columns: 1fr; gap: 56px; }
  .hero { padding-top: 140px; }
  .hero-copy { max-width: 640px; }
  .hero-visual { justify-items: center; }
  .fc-a { left: 4%; }
  .cards { grid-template-columns: repeat(2, 1fr); }
  .audit-card { grid-template-columns: 1fr; gap: 40px; padding: 42px; }
  .panel { grid-template-columns: 1fr; gap: 34px; padding: 34px; }
  .download-card { grid-template-columns: 1fr; gap: 32px; padding: 42px; }
  .download-actions { max-width: 380px; }
}

@media (max-width: 760px) {
  .wrap { width: calc(100% - 36px); }
  .nav-links { display: none; }
  .nav-inner { gap: 16px; }
  .nav .btn-sm { margin-left: auto; }
  .hero { padding: 118px 0 72px; }
  .hero h1 { font-size: clamp(36px, 9.6vw, 50px); }
  .lede { font-size: 15.5px; }
  .cta .btn { flex: 1 1 auto; }
  .meta { flex-wrap: wrap; }
  .phone { height: 591px; width: 276px; }
  .hero-visual { padding-top: 40px; }
  .float-card { padding: 8px 12px; }
  .fc-a { left: 4px; top: -4px; }
  .float-card strong { font-size: 11.5px; }
  .float-card small { font-size: 9.5px; }
  .audit { padding: 0; }
  .audit-card { padding: 26px 22px 30px; border-radius: 24px; gap: 32px; }
  .audit-points { gap: 12px; margin: 22px 0 26px; }
  .audit-btn { width: 100%; }
  .report-card { max-width: 100%; padding: 18px; }
  .features, .screens { padding: 76px 0; }
  .section-head { margin-bottom: 34px; }
  .cards { grid-template-columns: 1fr; gap: 12px; }
  .card { padding: 22px 20px 24px; }
  .tabs { width: 100%; justify-content: space-between; }
  .tab { flex: 1; padding: 9px 8px; font-size: 12.5px; }
  .panel { padding: 20px; border-radius: 22px; min-height: 0; }
  .mini-app { max-width: 100%; padding: 16px; }
  .panel-copy h3 { font-size: 20px; }
  .download { padding: 68px 0 78px; }
  .download-card { padding: 34px 24px; border-radius: 26px; }
  .foot-inner { gap: 16px; }
  .foot-links { margin-left: 0; width: 100%; }
  .copyright { margin-top: 2px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .js [data-reveal] { opacity: 1; transform: none; }
  .scribble { display: none; }
}