/* =========================================================
   干饭魔法书 · 作品集官网 — Apple 风格设计系统
   亮暗交替 / 超大标题 / 大量留白 / 玻璃拟态导航
   ========================================================= */

:root {
  --ink: #1d1d1f;
  --ink-2: #6e6e73;
  --ink-3: #86868b;
  --bg: #ffffff;
  --bg-alt: #f5f5f7;
  --black: #000000;
  --dark-surface: #1d1d1f;
  --on-dark: #f5f5f7;
  --on-dark-2: #86868b;
  --accent: #c3655e;
  --accent-bright: #ff817b;
  --gold: #cdb276;
  --gold-soft: #ffd07b;
  --sage: #b5c6bf;
  --line: #d2d2d7;
  --cta: #0071e3;
  --cta-hover: #0077ed;
  --radius-card: 26px;
  --ease: cubic-bezier(.28, .11, .32, 1);
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
html, body { overflow-x: clip; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Display", "SF Pro Text",
    "Helvetica Neue", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;
  background: var(--bg);
  color: var(--ink);
  font-size: 17px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
ul { list-style: none; }

::selection { background: rgba(195, 101, 94, .22); }

/* ---------- 版心 ---------- */
.wrap { width: 100%; max-width: 1280px; margin: 0 auto; padding: 0 6vw; }

/* ---------- 文字体系 ---------- */
.kicker, .num {
  font-size: 13px;
  font-weight: 600;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--accent);
}

.h1 {
  font-size: clamp(46px, 8.4vw, 104px);
  font-weight: 700;
  letter-spacing: -.035em;
  line-height: 1.02;
  color: var(--on-dark);
}

.h2 {
  font-size: clamp(32px, 4.6vw, 62px);
  font-weight: 700;
  letter-spacing: -.025em;
  line-height: 1.12;
}

.h3 { font-size: clamp(19px, 2vw, 24px); font-weight: 700; letter-spacing: -.015em; line-height: 1.35; }
h4 { font-size: 18px; font-weight: 700; letter-spacing: -.01em; }

.lead {
  font-size: clamp(17px, 1.8vw, 21px);
  line-height: 1.62;
  color: var(--ink-2);
  font-weight: 400;
}

.body { font-size: 15.5px; line-height: 1.7; color: var(--ink-2); }
.section-head .lead { text-wrap: balance; }
.tiny { font-size: 12.5px; color: var(--ink-3); }
code {
  font-family: "SF Mono", ui-monospace, Menlo, monospace;
  font-size: .88em;
  background: rgba(29, 29, 31, .07);
  padding: 2px 6px;
  border-radius: 6px;
}

b, strong { font-weight: 600; }

/* =========================================================
   导航 — 玻璃拟态深色悬浮条
   ========================================================= */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 200;
  height: 52px;
  background: rgba(22, 22, 23, .72);
  -webkit-backdrop-filter: saturate(180%) blur(22px);
  backdrop-filter: saturate(180%) blur(22px);
  border-bottom: 1px solid rgba(255, 255, 255, .08);
}

.nav-inner {
  max-width: 1280px;
  height: 100%;
  margin: 0 auto;
  padding: 0 6vw;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand { display: flex; align-items: center; gap: 10px; }
.brand img { width: 22px; height: 22px; }
.brand-name { font-size: 15px; font-weight: 600; color: var(--on-dark); line-height: 1.15; }
.brand-role { font-size: 10.5px; color: var(--ink-3); letter-spacing: .04em; }

.nav-links { display: flex; gap: 30px; }
.nav-links a {
  font-size: 12.5px;
  color: #a1a1a6;
  transition: color .25s var(--ease);
}
.nav-links a:hover { color: var(--on-dark); }

.nav-cta {
  font-size: 12.5px;
  font-weight: 500;
  color: #fff;
  background: var(--cta);
  padding: 7px 17px;
  border-radius: 980px;
  transition: background .25s var(--ease), transform .25s var(--ease);
}
.nav-cta:hover { background: var(--cta-hover); }

.nav-progress {
  position: absolute;
  left: 0; bottom: -1px;
  height: 2px; width: 0;
  background: var(--accent-bright);
  transition: width .1s linear;
}

/* =========================================================
   首屏 — 纯黑开场 · 居中超大标题
   ========================================================= */
.hero {
  position: relative;
  overflow: hidden;
  background: var(--black);
  padding: 150px 0 0;
  text-align: center;
}

.hero-grid {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 22px;
}

.hero .kicker { color: var(--accent); margin-bottom: 18px; }

.br-d { display: none; }
@media (min-width: 720px) { .br-d { display: inline; } }

.hero .lead {
  color: var(--on-dark-2);
  max-width: 640px;
  margin-top: 30px;
  margin-left: auto;
  margin-right: auto;
  text-align: center;
  text-wrap: balance;
}
.hero .lead b { color: var(--on-dark); font-weight: 600; }

.hero-badges { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; margin-top: 6px; }

.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
  color: #a1a1a6;
  background: rgba(255, 255, 255, .07);
  border: 1px solid rgba(255, 255, 255, .12);
  padding: 7px 15px;
  border-radius: 980px;
}
.pill i { width: 6px; height: 6px; border-radius: 50%; background: var(--accent-bright); }
.pill.is-gold i { background: var(--gold-soft); }
.pill.is-sage i { background: var(--sage); }

.hero-actions { display: flex; flex-wrap: wrap; justify-content: center; gap: 16px; margin-top: 12px; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 8px;
  font-size: 16px;
  font-weight: 500;
  padding: 13px 27px;
  border-radius: 980px;
  transition: transform .3s var(--ease), background .3s var(--ease), border-color .3s var(--ease);
}
.btn:active { transform: scale(.97); }

.btn-primary { background: var(--cta); color: #fff; }
.btn-primary:hover { background: var(--cta-hover); }

.btn-ghost {
  color: var(--on-dark);
  background: rgba(255, 255, 255, .08);
  border: 1px solid rgba(255, 255, 255, .26);
}
.btn-ghost:hover { background: rgba(255, 255, 255, .14); }

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: clamp(28px, 6vw, 84px);
  margin-top: 44px;
  padding-top: 34px;
  width: 100%;
  border-top: 1px solid rgba(255, 255, 255, .12);
}
.hero-stats > div { text-align: center; }
.stat-v {
  font-size: clamp(34px, 4vw, 46px);
  font-weight: 700;
  letter-spacing: -.03em;
  color: var(--on-dark);
  line-height: 1.1;
}
.stat-v small { font-size: .42em; font-weight: 500; margin-left: 2px; color: var(--on-dark-2); }
.stat-k { font-size: 13px; color: var(--on-dark-2); margin-top: 7px; }

.hero-phone { margin-top: 56px; display: flex; justify-content: center; align-items: center; position: relative; }
.hero-phone::after {
  content: "";
  position: absolute;
  inset: 14% 12% 4%;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 255, 255, .1), transparent 66%);
  filter: blur(46px);
  z-index: -1;
}

/* ---------- 手机框（承载可交互原型） ---------- */
.phone {
  position: relative;
  width: 340px;
  height: 700px;
  flex: none;
  border-radius: 56px;
  background: linear-gradient(160deg, #2f3835, #1b211f);
  padding: 11px;
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, .14) inset,
    0 40px 90px rgba(24, 30, 28, .32),
    0 4px 14px rgba(24, 30, 28, .18);
}
.phone::before {
  content: "";
  position: absolute;
  top: 20px; left: 50%;
  transform: translateX(-50%);
  width: 88px; height: 22px;
  background: #121716;
  border-radius: 980px;
  z-index: 30;
}
.phone-screen {
  position: relative;
  width: 100%; height: 100%;
  border-radius: 46px;
  overflow: hidden;
  background: #f3f0eb;
  display: flex;
  flex-direction: column;
}

/* =========================================================
   通用区块 — 亮暗交替
   ========================================================= */
.section {
  --card-bg: var(--bg-alt);
  --text: var(--ink);
  --text-2: var(--ink-2);
  --text-3: var(--ink-3);
  --hairline: rgba(29, 29, 31, .12);
  background: var(--bg);
  padding: clamp(88px, 9vw, 132px) 0;
  color: var(--text);
}

.section--alt { background: var(--bg-alt); }

.section--dark {
  --card-bg: var(--dark-surface);
  --text: var(--on-dark);
  --text-2: var(--on-dark-2);
  --text-3: var(--on-dark-2);
  --hairline: rgba(255, 255, 255, .14);
  background: var(--black);
  color: var(--on-dark);
}

.section-head {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  text-align: center;
}
.section-head .h2 { max-width: 1060px; }
.section-head .lead { max-width: 800px; }
.section--dark .lead { color: var(--on-dark-2); }

/* ---------- 卡片 ---------- */
.card {
  background: var(--card-bg);
  border-radius: var(--radius-card);
  padding: clamp(24px, 2.6vw, 34px);
  transition: transform .45s var(--ease), box-shadow .45s var(--ease);
}
.card:hover { transform: translateY(-4px); box-shadow: 0 18px 44px rgba(0, 0, 0, .1); }
.section--dark .card:hover { box-shadow: 0 18px 44px rgba(0, 0, 0, .55); }
.card-quiet { background: var(--card-bg); }

/* ---------- 栅格 ---------- */
.grid-2, .grid-3, .grid-4, .position-grid {
  display: grid;
  gap: 24px;
  margin-top: 48px;
}
.grid-2, .position-grid { grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid-4 { grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); }

/* =========================================================
   01 问题定义
   ========================================================= */
.pain { display: flex; flex-direction: column; gap: 13px; }
.pain-idx {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .16em;
  color: var(--accent);
}
.pain-icon { color: var(--accent); margin-bottom: 4px; }
.pain-icon svg { width: 30px; height: 30px; display: block; }
.pain h3 { font-size: 20px; font-weight: 700; letter-spacing: -.01em; }
.pain p { font-size: 14.5px; line-height: 1.72; color: var(--text-2); }
.pain-quote {
  margin-top: 4px;
  font-size: 12.5px;
  line-height: 1.65;
  color: var(--text-3);
  padding-top: 12px;
  border-top: 1px dashed var(--hairline);
}

/* ---------- 核心洞察 · 黑场大字陈述 ---------- */
.section--statement { padding: clamp(110px, 12vw, 150px) 0; }
.insight {
  max-width: 1080px;
  margin: 0 auto;
  text-align: center;
}
.insight-mark { display: none; }
.insight p {
  font-size: clamp(28px, 3.6vw, 46px);
  font-weight: 700;
  letter-spacing: -.025em;
  line-height: 1.35;
  color: var(--on-dark);
}
.insight p b, .insight p em { font-style: normal; }
.insight p em { color: var(--on-dark-2); }

/* =========================================================
   02 产品定位
   ========================================================= */
.position-statement {
  font-size: clamp(26px, 3vw, 40px);
  font-weight: 700;
  letter-spacing: -.02em;
  line-height: 1.3;
  color: var(--text);
}
.position-statement span { color: var(--accent); }
.position-grid > div:first-child { display: flex; flex-direction: column; gap: 22px; justify-content: center; }

.value-row { display: flex; gap: 16px; align-items: flex-start; }
.value-row + .value-row { margin-top: 20px; padding-top: 20px; border-top: 1px solid var(--hairline); }
.value-tag {
  flex: none;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .14em;
  color: var(--accent);
  padding-top: 3px;
}
.value-row p { font-size: 15px; line-height: 1.72; color: var(--text-2); }
.value-row strong { color: var(--text); }

/* =========================================================
   03 交互原型
   ========================================================= */
.demo-stage {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: clamp(32px, 4vw, 64px);
  align-items: center;
  margin-top: 64px;
}

.demo-side { display: flex; flex-direction: column; gap: 16px; }
.demo-side .kicker { color: var(--accent); }
.demo-side .h3 { font-size: clamp(22px, 2.2vw, 30px); letter-spacing: -.02em; margin-top: 4px; }

.demo-tabs { display: flex; flex-direction: column; gap: 12px; margin-top: 10px; }
.demo-tab {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  text-align: left;
  background: var(--card-bg);
  border: 1px solid transparent;
  border-radius: 20px;
  padding: 20px 24px;
  transition: transform .35s var(--ease), border-color .35s var(--ease), background .35s var(--ease);
}
.demo-tab:hover { transform: translateY(-2px); border-color: var(--hairline); }
.demo-tab.is-active { background: #fff; border-color: rgba(195, 101, 94, .4); box-shadow: 0 10px 30px rgba(0,0,0,.06); }
.section--dark .demo-tab.is-active { background: #2c2c2e; }
.demo-tab-n { font-size: 13px; font-weight: 700; color: var(--accent); padding-top: 3px; }
.demo-tab-t { display: block; font-size: 17px; font-weight: 700; letter-spacing: -.01em; color: var(--text); }
.demo-tab-d { display: block; font-size: 13.5px; line-height: 1.6; color: var(--text-2); margin-top: 4px; }

.demo-hint {
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 20px;
  padding: 24px 26px;
  font-size: 13.5px;
  line-height: 1.75;
  color: var(--text-2);
  margin-top: 6px;
}
.demo-hint strong { color: var(--text); }

/* =========================================================
   04 功能地图 — 一行四域
   ========================================================= */
.map-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  margin-top: 36px;
}
@media (max-width: 1100px) { .map-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 660px) { .map-grid { grid-template-columns: 1fr; } }

.map-group { display: flex; flex-direction: column; gap: 12px; }
.map-title { display: flex; align-items: center; gap: 10px; }
.map-title h3 { font-size: 17px; font-weight: 700; letter-spacing: -.01em; flex: 1; white-space: nowrap; }
.map-title > span:last-child {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .14em;
  color: var(--text-3);
}
.map-q { font-size: 13.5px; font-weight: 600; color: var(--accent-bright); margin: -4px 0 4px 20px; }
@media (min-width: 1101px) {
  .map-item { display: block; }
  .map-item small { display: block; margin-top: 3px; font-size: 12px; line-height: 1.5; }
}
.map-dot { width: 10px; height: 10px; border-radius: 50%; flex: none; }
.map-list { display: flex; flex-direction: column; }
.map-item {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 11px 0;
  border-top: 1px solid var(--hairline);
}
.map-item:first-child { border-top: 0; }
.map-item b { font-size: 14.5px; font-weight: 600; color: var(--text); flex: none; }
.map-item small { font-size: 13px; color: var(--text-3); }

/* =========================================================
   05 六个关键设计决策
   ========================================================= */
.feature { display: flex; flex-direction: column; gap: 15px; }
.feature-head { display: flex; justify-content: space-between; align-items: flex-start; gap: 20px; }
.feature-idx {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .16em;
  color: var(--accent);
  margin-bottom: 10px;
}
.feature h3 { font-size: clamp(19px, 1.8vw, 23px); font-weight: 700; letter-spacing: -.015em; line-height: 1.4; }
.feature-sub { font-size: 14.5px; color: var(--text-2); margin-top: 8px; }
.feature-badge {
  flex: none;
  font-size: 11.5px;
  font-weight: 600;
  color: var(--accent);
  background: rgba(195, 101, 94, .1);
  padding: 6px 13px;
  border-radius: 980px;
  white-space: nowrap;
}
.feature-body {
  display: grid;
  grid-template-columns: 0.85fr 1.1fr 1fr;
  gap: 0;
  padding-top: 20px;
  border-top: 1px solid var(--hairline);
}
.fb-cell { padding-right: 28px; }
.fb-cell + .fb-cell {
  border-left: 1px solid var(--hairline);
  padding-left: 28px;
}
@media (max-width: 900px) {
  .feature-body { grid-template-columns: 1fr; }
  .fb-cell { padding-right: 0; }
  .fb-cell + .fb-cell {
    border-left: 0;
    padding-left: 0;
    border-top: 1px solid var(--hairline);
    padding-top: 16px;
    margin-top: 2px;
  }
}
.fb-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .14em;
  color: var(--accent);
  margin-bottom: 9px;
}
.fb-cell p, .fb-cell li { font-size: 14.5px; line-height: 1.72; color: var(--text-2); }
.fb-cell li { padding-left: 16px; position: relative; }
.fb-cell li + li { margin-top: 8px; }
.fb-cell li::before {
  content: "";
  position: absolute;
  left: 0; top: .72em;
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--accent-bright);
}
.fb-cell b { color: var(--text); }

.feature-flow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-top: 4px;
}
.flow-step {
  font-size: 12.5px;
  color: var(--text-2);
  background: rgba(29, 29, 31, .05);
  padding: 7px 14px;
  border-radius: 980px;
}
.section--dark .flow-step { background: rgba(255, 255, 255, .07); }
.flow-arrow { font-size: 12px; color: var(--text-3); }

/* =========================================================
   06 设计系统
   ========================================================= */
.tokens-swatches { display: flex; flex-wrap: wrap; gap: 12px; margin: 22px 0 18px; }
.swatch { width: calc((100% - 108px) / 10); min-width: 88px; }
.swatch-chip { height: 78px; border-radius: 16px; border: 1px solid rgba(255, 255, 255, .12); }
.swatch-meta { margin-top: 9px; }
.swatch-name { font-size: 12px; font-weight: 500; color: var(--text); }
.swatch-hex { font-size: 11px; color: var(--text-3); font-family: "SF Mono", ui-monospace, Menlo, monospace; }

.type-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  padding: 15px 0;
  border-top: 1px solid var(--hairline);
}
.type-row:first-of-type { border-top: 0; }
.type-spec { font-size: 12px; line-height: 1.6; color: var(--text-3); }
.type-demo { color: var(--text); }

.mat-row { display: flex; align-items: center; gap: 16px; padding: 14px 0; }
.mat-row + .mat-row { border-top: 1px solid var(--hairline); }
.mat-demo {
  flex: none;
  width: 92px; height: 46px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  color: var(--text-2);
}
.mat-glass {
  background: rgba(255, 255, 255, .18);
  border: 1px solid rgba(255, 255, 255, .32);
  -webkit-backdrop-filter: blur(6px);
  backdrop-filter: blur(6px);
  color: var(--text);
}
.mat-paper { background: linear-gradient(180deg, #f3f0eb, #dfdcd5); }
.mat-ink { background: linear-gradient(180deg, rgba(8,10,10,.92), rgba(8,10,10,.4)); border: 1px solid rgba(255,255,255,.12); }
.mat-coral { background: linear-gradient(90deg, #f7dfbd, #e5b38a); border-radius: 980px; color: #3a2a26; }

/* =========================================================
   07 技术架构
   ========================================================= */
.arch {
  background: var(--bg-alt);
  border-radius: var(--radius-card);
  padding: 10px 34px;
  margin-top: 48px;
}
.arch-layer { display: flex; gap: 24px; padding: 22px 0; }
.arch-layer + .arch-layer { border-top: 1px solid var(--hairline); }
.arch-tag { flex: none; width: 180px; }
.arch-tag { font-size: 17px; font-weight: 700; color: var(--text); }
.arch-tag small { display: block; font-size: 11.5px; font-weight: 400; color: var(--text-3); margin-top: 4px; }
.arch-chips { display: flex; flex-wrap: wrap; gap: 9px; }
.arch-chip {
  font-size: 13px;
  color: var(--text-2);
  background: #fff;
  border: 1px solid var(--hairline);
  padding: 7px 14px;
  border-radius: 980px;
}
.arch-chip.is-mono { font-family: "SF Mono", ui-monospace, Menlo, monospace; font-size: 12px; }

.code-block {
  background: var(--dark-surface);
  border-radius: var(--radius-card);
  padding: 28px 32px;
  margin-top: 24px;
  overflow-x: auto;
}
.code-block pre {
  font-family: "SF Mono", ui-monospace, Menlo, monospace;
  font-size: 12.5px;
  line-height: 1.8;
  color: #c7c7cc;
  white-space: pre;
}
.c-com { color: #6e6e73; }
.c-key { color: #ff817b; }
.c-str { color: #ffd07b; }

/* =========================================================
   08 工作方法
   ========================================================= */
.timeline { display: flex; flex-direction: column; gap: 34px; margin-top: 48px; }
.tl-item { display: flex; gap: 22px; }
.tl-dot {
  flex: none;
  width: 34px; height: 34px;
  border-radius: 50%;
  background: var(--card-bg);
  color: var(--accent);
  font-size: 14px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}
.tl-item h4 { color: var(--text); margin-bottom: 8px; }
.tl-item p { font-size: 14.5px; line-height: 1.72; color: var(--text-2); }
.tl-tools { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 14px; }
.tl-tool {
  font-size: 12px;
  color: var(--text-2);
  background: var(--card-bg);
  padding: 6px 13px;
  border-radius: 980px;
}

/* =========================================================
   09 复盘
   ========================================================= */
.retro { display: flex; flex-direction: column; gap: 16px; }
.retro ul { display: flex; flex-direction: column; }
.retro li {
  font-size: 14.5px;
  line-height: 1.72;
  color: var(--text-2);
  padding: 12px 0;
  border-top: 1px solid var(--hairline);
}
.retro li:first-child { border-top: 0; padding-top: 0; }
.retro li b { color: var(--text); }
.retro-head { display: flex; align-items: center; gap: 11px; font-size: 20px; font-weight: 700; color: var(--text); }
.retro-mark {
  flex: none;
  width: 20px; height: 20px;
  border-radius: 50%;
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* =========================================================
   页脚
   ========================================================= */
.footer {
  background: var(--black);
  color: var(--on-dark);
  padding: clamp(90px, 9vw, 130px) 0 56px;
}
.footer-grid {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 60px;
  flex-wrap: wrap;
}
.footer .h2 { max-width: 640px; margin-top: 12px; }
.footer .body { color: var(--on-dark-2); max-width: 560px; margin-top: 14px; }
.footer-actions { display: flex; flex-direction: column; align-items: center; gap: 14px; }
.footer-note {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
  margin-top: 64px;
  padding-top: 26px;
  border-top: 1px solid rgba(255, 255, 255, .14);
}
.footer-note .tiny { color: #6e6e73; }
.footer-legal {
  margin-top: 26px;
  padding-top: 24px;
  border-top: 1px solid rgba(255, 255, 255, .1);
}
.footer-legal p {
  font-size: 12px;
  line-height: 1.75;
  color: #6e6e73;
  margin: 0 0 8px;
}
.footer-legal .footer-copy { margin-bottom: 0; color: #86868b; }
.footer-legal a {
  color: #6e6e73;
  text-decoration: underline;
  text-underline-offset: 2.5px;
  transition: color .18s;
}
.footer-legal a:hover { color: #d2d2d7; }

/* =========================================================
   3D 环绕展示 · 全黑 SHOWCASE
   ========================================================= */
.showcase { position: relative; background: #000; height: 300vh; }

.showcase-pin {
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: flex-start;
  gap: 0;
  overflow: hidden;
  padding: 0;
}

.showcase-copy {
  position: absolute;
  top: clamp(60px, 9vh, 96px);
  left: 0; right: 0;
  text-align: center;
  z-index: 3;
  will-change: opacity, transform;
}
.showcase-copy .kicker { color: var(--accent-bright); }
.showcase-copy .h2 { color: var(--on-dark); margin-top: 14px; }
.showcase-copy .lead { color: var(--on-dark-2); margin: 14px auto 0; max-width: 640px; line-height: 1.5; }

.showcase-stage {
  position: relative;
  perspective: 1400px;
  /* 手机 3D 倾斜会向上翘出约 64px，下限须保证斜角不压到上方文案 */
  margin-top: clamp(268px, 28vh, 340px);
}

.showcase-glow {
  position: absolute;
  inset: -22% -40%;
  background:
    radial-gradient(circle at 50% 40%, rgba(255, 255, 255, .09), transparent 58%),
    radial-gradient(circle at 50% 96%, rgba(255, 255, 255, .05), transparent 55%);
  filter: blur(34px);
  z-index: -1;
  pointer-events: none;
}

.showcase-phone {
  background: linear-gradient(160deg, #3c3c3e, #101012);
  box-shadow:
    0 0 0 1px rgba(255, 255, 255, .18) inset,
    0 60px 120px rgba(0, 0, 0, .8),
    0 8px 30px rgba(0, 0, 0, .55);
  transform: rotateX(8deg) rotateY(-32deg) scale(.9);
  transform-origin: 50% 0;
  transform-style: preserve-3d;
  will-change: transform;
}
.showcase-phone::before { background: #0a0a0a; }

.showcase-hint {
  position: absolute;
  bottom: 42px;
  left: 50%;
  transform: translateX(-50%);
  color: #6e6e73;
  letter-spacing: .12em;
  z-index: 3;
  white-space: nowrap;
}

/* 特写时刻：舞台整体压暗 + 三个主功能列表 */
.showcase-dim {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 50% 46%, rgba(0, 0, 0, .8), rgba(0, 0, 0, .97) 72%);
  opacity: 0;
  pointer-events: none;
  z-index: 3;
  will-change: opacity;
}
.showcase-feats {
  position: absolute;
  top: 63%;
  left: 50%;
  transform: translate(-50%, 18px);
  z-index: 5;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
  opacity: 0;
  pointer-events: none;
  will-change: opacity, transform;
}
.showcase-feats li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: clamp(15px, 1.5vw, 19px);
  font-weight: 600;
  letter-spacing: .01em;
  color: var(--on-dark);
  opacity: 0;
  will-change: opacity, transform;
}
.showcase-feats li i {
  flex: none;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--accent-bright);
}
/* 特写时刻的大字标题（仿苹果 zoom close-up） */
.showcase-zoomline {
  position: absolute;
  top: 44%;
  left: 50%;
  transform: translate(-50%, -50%) scale(1.05);
  z-index: 4;
  font-size: clamp(30px, 5.2vw, 58px);
  font-weight: 700;
  letter-spacing: -.015em;
  color: var(--on-dark);
  text-shadow: 0 2px 40px rgba(0, 0, 0, .75);
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  will-change: opacity, transform;
}

/* 滚动角度表盘（悬浮 HUD） */
.showcase-dial {
  position: absolute;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 14px;
  z-index: 3;
}
.showcase-dial .dial-label {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: .22em;
  color: #6e6e73;
}
.showcase-dial .dial-track {
  width: 180px;
  height: 2px;
  border-radius: 2px;
  background: rgba(255, 255, 255, .14);
  overflow: hidden;
}
.showcase-dial .dial-track i {
  display: block;
  height: 100%;
  width: 0;
  background: var(--accent-bright);
}
.showcase-dial .dial-val {
  font-size: 12px;
  font-weight: 600;
  color: var(--on-dark);
  font-variant-numeric: tabular-nums;
  min-width: 40px;
}

/* 矮视口：隐藏提示，标题上移 */
@media (max-height: 720px) {
  .showcase-hint { display: none; }
  .showcase-copy { top: 54px; }
  .showcase-stage { margin-top: 280px; }
}

.showcase-note {
  position: absolute;
  top: 50%;
  width: 232px;
  opacity: 0;
  pointer-events: none;
  transition: opacity .55s var(--ease), transform .55s var(--ease);
}
.showcase-note.is-left { right: calc(100% + 56px); text-align: right; transform: translateY(-50%) translateX(-16px); }
.showcase-note.is-right { left: calc(100% + 56px); text-align: left; transform: translateY(-50%) translateX(16px); }
.showcase-note.is-on { opacity: 1; }
.showcase-note.is-left.is-on { transform: translateY(-50%) translateX(0); }
.showcase-note.is-right.is-on { transform: translateY(-50%) translateX(0); }
.showcase-note b {
  display: block;
  font-size: 19px;
  font-weight: 700;
  letter-spacing: -.01em;
  color: var(--on-dark);
}
.showcase-note span { display: block; margin-top: 7px; font-size: 13px; line-height: 1.65; color: var(--on-dark-2); }

@media (max-width: 960px) {
  .showcase-note { display: none; }
  .showcase-dial .dial-track { width: 120px; }
  .showcase-copy { top: 72px; }
}

/* =========================================================
   05 关键决策 · 精华卡片
   ========================================================= */
.decision-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
  margin-top: 48px;
}
.decision {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 32px 34px 30px;
}
.decision-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 4px;
}
.decision-no {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: .12em;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}
.decision h3 {
  font-size: clamp(18px, 1.7vw, 22px);
  font-weight: 700;
  letter-spacing: -.015em;
  line-height: 1.4;
}
.decision p {
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--text-2);
}
@media (max-width: 860px) {
  .decision-grid { grid-template-columns: 1fr; }
}

/* =========================================================
   06 细节动效 · 边看边动（黑场 Bento）
   ========================================================= */
.motion-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
  margin-top: 48px;
}
.motion-card {
  min-width: 0;
  background: #151517;
  border: 1px solid rgba(255, 255, 255, .07);
  border-radius: 28px;
  padding: 30px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  transition: transform .45s var(--ease), border-color .45s var(--ease);
}
.motion-card:hover { transform: translateY(-4px); border-color: rgba(255, 255, 255, .16); }
.motion-card h3 { font-size: 18px; font-weight: 700; letter-spacing: -.01em; color: var(--on-dark); }
.motion-card p { font-size: 14px; line-height: 1.68; color: var(--on-dark-2); }
.motion-card--wide { grid-column: span 2; }

.motion-demo {
  height: 216px;
  border-radius: 20px;
  background: #0a0a0b;
  border: 1px solid rgba(255, 255, 255, .07);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  margin-bottom: 8px;
  position: relative;
}
.motion-card--wide .motion-demo { justify-content: center; gap: 26px; padding: 0 20px; flex-wrap: wrap; }

/* --- 1 盲盒翻卡（真实菜谱轮换） --- */
.mb-flip { width: 240px; height: 152px; perspective: 1000px; flex: none; }
.mb-inner {
  position: relative;
  width: 100%; height: 100%;
  transform-style: preserve-3d;
  transition: transform .55s cubic-bezier(.32,.72,.28,1);
}
.mb-inner.is-flip { transform: rotateY(180deg); }
.mb-face {
  position: absolute;
  inset: 0;
  backface-visibility: hidden;
  -webkit-backface-visibility: hidden;
  border-radius: 18px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 7px;
  overflow: hidden;
}
.mb-front {
  background: url("../img/magic-roses.jpg") center / cover no-repeat;
  color: #f5f5f7;
  justify-content: flex-end;
  align-items: flex-start;
  text-align: left;
  padding: 14px 16px;
  gap: 3px;
  box-shadow: 0 14px 30px rgba(0, 0, 0, .5);
}
.mb-front::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(8, 10, 10, .06) 30%, rgba(8, 10, 10, .84) 88%);
}
.mb-front > * { position: relative; z-index: 1; }
.mb-topline {
  position: absolute;
  top: 13px; left: 16px; right: 16px;
  display: flex;
  justify-content: space-between;
  font-size: 9px;
  font-weight: 700;
  letter-spacing: .14em;
  color: rgba(255, 255, 255, .92);
}
.mb-front-title { font-size: 16.5px; font-weight: 800; letter-spacing: -.01em; }
.mb-front small { font-size: 10.5px; font-weight: 500; color: rgba(255, 255, 255, .85); }
.mb-front-cta {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 9px;
  font-size: 12px;
  font-weight: 700;
  color: #ffd07b;
}
.mb-front-cta i { font-style: normal; animation: ctaNudge 2.2s ease-in-out infinite; }
@keyframes ctaNudge { 50% { transform: translate(2px, -2px); } }
.mb-back {
  transform: rotateY(180deg);
  background: #1b211f;
}
.mb-img {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
}
.mb-shade {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(8,10,10,0) 34%, rgba(8,10,10,.86) 78%);
}
.mb-dish {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 3px;
  text-align: left;
}
.mb-dish b { font-size: 14.5px; font-weight: 700; color: #f5f5f7; letter-spacing: -.01em; }
.mb-dish em { font-style: normal; font-size: 11px; font-weight: 500; color: #ffd07b; }
.mb-side { display: flex; flex-direction: column; gap: 9px; align-items: stretch; }
.mb-chip {
  font-size: 12px;
  font-weight: 600;
  color: var(--on-dark-2);
  border: 1px solid rgba(255, 255, 255, .16);
  border-radius: 980px;
  padding: 6px 16px;
  text-align: center;
}
.mb-again {
  font-size: 12px;
  font-weight: 600;
  color: var(--accent-bright);
  text-align: center;
  margin-top: 4px;
  animation: againPulse 5.2s ease infinite;
}
@keyframes againPulse { 0%, 55% { opacity: .55; } 68%, 86% { opacity: 1; } 100% { opacity: .55; } }

/* --- 2 经验条 --- */
.xp-box { width: 80%; display: flex; flex-direction: column; gap: 13px; }
.xp-top { display: flex; justify-content: space-between; align-items: center; }
.xp-lv {
  font-size: 12.5px;
  font-weight: 700;
  color: #f5f5f7;
  background: rgba(255, 255, 255, .1);
  border: 1px solid rgba(255, 255, 255, .12);
  padding: 5px 13px;
  border-radius: 980px;
}
.xp-plus { font-size: 13.5px; font-weight: 700; color: var(--accent-bright); opacity: 0; animation: xpFloat 5.2s ease infinite; }
.xp-bar { height: 12px; border-radius: 980px; background: rgba(255, 255, 255, .1); overflow: hidden; }
.xp-bar i {
  display: block;
  height: 100%;
  border-radius: 980px;
  background: linear-gradient(90deg, #c3655e, #ff817b);
  animation: xpFill 5.2s var(--ease) infinite;
}
.xp-meta { display: flex; justify-content: space-between; font-size: 12px; color: var(--on-dark-2); }
@keyframes xpFill {
  0%, 16% { width: 56%; }
  52%, 74% { width: 86%; }
  92%, 100% { width: 56%; }
}
@keyframes xpFloat {
  0%, 14% { opacity: 0; transform: translateY(8px); }
  24% { opacity: 1; transform: translateY(0); }
  46%, 100% { opacity: 0; transform: translateY(-12px); }
}

/* --- 3 营养提问 --- */
.ask-box { width: 80%; display: flex; flex-direction: column; gap: 12px; }
.ask-q {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(255, 255, 255, .1);
  border: 1px solid rgba(255, 255, 255, .12);
  color: #f5f5f7;
  border-radius: 14px;
  padding: 12px 15px;
  font-size: 13.5px;
}
.ask-q i {
  font-style: normal;
  flex: none;
  width: 20px; height: 20px;
  border-radius: 50%;
  background: var(--accent-bright);
  color: #fff;
  font-size: 11px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}
.ask-type {
  display: inline-block;
  overflow: hidden;
  white-space: nowrap;
  vertical-align: bottom;
  border-right: 1px solid rgba(255, 255, 255, .65);
  animation: askType 5.2s steps(11, end) infinite, askCaret .8s step-end infinite;
}
@keyframes askType {
  0%, 8% { width: 0; }
  34%, 100% { width: 11.3em; }
}
@keyframes askCaret { 50% { border-color: transparent; } }
.ask-a { display: flex; flex-direction: column; gap: 8px; }
.ask-a div {
  background: rgba(255, 255, 255, .05);
  border: 1px solid rgba(255, 255, 255, .09);
  border-radius: 12px;
  padding: 9px 14px;
  font-size: 12.5px;
  color: var(--on-dark-2);
  opacity: 0;
  animation: askIn 5.2s var(--ease) infinite;
}
.ask-a div:nth-child(2) { animation-delay: .18s; }
@keyframes askIn {
  0%, 36% { opacity: 0; transform: translateY(9px); }
  50%, 84% { opacity: 1; transform: none; }
  96%, 100% { opacity: 0; transform: translateY(-4px); }
}

/* --- 4 干饭日历 --- */
.streak-box { display: flex; flex-direction: column; align-items: center; gap: 18px; }
.streak-days { display: flex; gap: 9px; }
.streak-day {
  width: 34px; height: 34px;
  border-radius: 11px;
  background: rgba(255, 255, 255, .08);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  font-size: 9.5px;
  color: var(--on-dark-2);
  gap: 3px;
  animation: dayLight 5.2s var(--ease) infinite;
}
.streak-day i { width: 5px; height: 5px; border-radius: 50%; background: rgba(255, 255, 255, .18); }
@keyframes dayLight {
  0%, 14% { background: rgba(255, 255, 255, .08); box-shadow: none; }
  20%, 68% { background: #c3655e; box-shadow: 0 6px 16px rgba(195, 101, 94, .38); }
  80%, 100% { background: rgba(255, 255, 255, .08); box-shadow: none; }
}
.streak-flame { display: inline-flex; align-items: center; gap: 6px; font-size: 14px; font-weight: 700; color: var(--accent-bright); animation: flamePulse 2.4s ease-in-out infinite; }
.streak-flame svg { width: 15px; height: 15px; }
@keyframes flamePulse { 50% { transform: scale(1.06); } }

/* --- 5 今晚模式 --- */
.mode-box { width: 80%; display: flex; flex-direction: column; gap: 12px; }
.mode-title { font-size: 13px; font-weight: 700; color: var(--on-dark); }
.mode-title em { font-style: normal; font-weight: 500; font-size: 11.5px; color: var(--on-dark-2); margin-left: 8px; }
.mode-chips { display: flex; flex-wrap: wrap; gap: 8px; }
.mode-chip {
  font-size: 12px;
  font-weight: 600;
  color: var(--on-dark-2);
  background: rgba(255, 255, 255, .06);
  border: 1px solid rgba(255, 255, 255, .1);
  border-radius: 980px;
  padding: 7px 14px;
  animation: modeOn 5.2s var(--ease) infinite;
  animation-delay: var(--d, 0s);
}
@keyframes modeOn {
  0%, 16% { background: rgba(255, 255, 255, .06); border-color: rgba(255, 255, 255, .1); color: var(--on-dark-2); }
  22%, 30% { background: rgba(195, 101, 94, .28); border-color: rgba(255, 129, 123, .75); color: #fff; transform: scale(1.05); }
  38%, 100% { background: rgba(255, 255, 255, .06); border-color: rgba(255, 255, 255, .1); color: var(--on-dark-2); transform: none; }
}
.mode-filter {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--on-dark-2);
  animation: modeFilterIn 5.2s var(--ease) infinite;
}
.mode-filter i {
  width: 30px; height: 17px;
  border-radius: 980px;
  background: rgba(255, 255, 255, .12);
  position: relative;
}
.mode-filter i::after {
  content: "";
  position: absolute;
  top: 2px; left: 2px;
  width: 13px; height: 13px;
  border-radius: 50%;
  background: #fff;
  animation: modeKnob 5.2s var(--ease) infinite;
}
@keyframes modeKnob { 0%, 30% { transform: translateX(0); } 44%, 82% { transform: translateX(13px); } 96%, 100% { transform: translateX(0); } }
@keyframes modeFilterIn { 0%, 30% { opacity: .45; } 44%, 82% { opacity: 1; } 96%, 100% { opacity: .45; } }
.mode-out { font-size: 11.5px; color: var(--on-dark-2); opacity: .8; }

/* --- 6 收藏 --- */
.motion-card--fav {
  grid-column: span 3;
  min-width: 0;
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  align-items: center;
  gap: 14px 44px;
}
.motion-card--fav .motion-demo { grid-column: 1; grid-row: 1 / span 2; height: 212px; margin-bottom: 0; }
.motion-card--fav h3 { grid-column: 2; }
.motion-card--fav p { grid-column: 2; }
.fav-demo { position: relative; display: flex; align-items: center; justify-content: center; width: 100%; height: 100%; }
.fav-card {
  width: 200px;
  border-radius: 16px;
  overflow: hidden;
  background: #1d1d1f;
  border: 1px solid rgba(255, 255, 255, .1);
  box-shadow: 0 16px 36px rgba(0, 0, 0, .45);
}
.fav-img { display: block; width: 100%; height: 104px; object-fit: cover; }
.fav-row { display: flex; align-items: center; justify-content: space-between; padding: 11px 13px; gap: 10px; }
.fav-row b { display: block; font-size: 13px; font-weight: 700; color: var(--on-dark); letter-spacing: -.01em; }
.fav-row small { display: block; font-size: 10.5px; color: var(--on-dark-2); margin-top: 2px; }
.fav-heart {
  flex: none;
  font-size: 19px;
  line-height: 1;
  color: rgba(255, 255, 255, .35);
  animation: heartPop 5.2s var(--ease) infinite;
}
@keyframes heartPop {
  0%, 30% { color: rgba(255, 255, 255, .35); transform: scale(1); }
  38% { color: #ff5a52; transform: scale(1.45); }
  46%, 78% { color: #ff5a52; transform: scale(1.12); }
  88%, 100% { color: rgba(255, 255, 255, .35); transform: scale(1); }
}
.fav-toast {
  position: absolute;
  top: 14px;
  left: 50%;
  translate: -50% 0;
  font-size: 12px;
  font-weight: 600;
  color: #ffd07b;
  background: rgba(0, 0, 0, .78);
  border: 1px solid rgba(255, 208, 123, .3);
  border-radius: 980px;
  padding: 7px 16px;
  opacity: 0;
  animation: toastUp 5.2s var(--ease) infinite;
}
@keyframes toastUp {
  0%, 38% { opacity: 0; transform: translateY(12px); }
  50%, 76% { opacity: 1; transform: translateY(0); }
  88%, 100% { opacity: 0; transform: translateY(-8px); }
}

/* =========================================================
   滚动进场
   ========================================================= */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .8s var(--ease), transform .8s var(--ease); }
.reveal.is-in { opacity: 1; transform: none; }

/* 滚动联动浮升（地图/决策区） */
.parallax { will-change: transform, opacity; }

/* 黑场展示 · 屏幕内容缩放聚焦 */
#showcaseScreen {
  transition: transform .7s var(--ease);
  will-change: transform;
}

/* 首屏手机 3D 视差 */
.hero-phone { perspective: 1200px; }
.hero-phone .phone { transition: transform .35s var(--ease); will-change: transform; }

@media (max-width: 1060px) {
  .motion-grid { grid-template-columns: repeat(2, 1fr); }
  .motion-card--wide { grid-column: span 2; }
}
@media (max-width: 720px) {
  .motion-grid { grid-template-columns: 1fr; }
  .motion-card--wide { grid-column: span 1; }
  .motion-card--wide .motion-demo { flex-direction: column; height: auto; padding: 22px 0; gap: 16px; }
}

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
  .mb-inner, .xp-bar i, .xp-plus, .ask-type, .ask-a div, .streak-day, .streak-flame,
  .mode-chip, .mode-filter, .mode-filter i::after, .fav-heart, .fav-toast,
  .mb-front .mb-star, .mb-again { animation: none; }
  .mb-inner { transition: none; }
  .showcase-copy { opacity: 1 !important; transform: none !important; }
  .showcase-zoomline { opacity: 1; transform: translate(-50%, -50%); text-shadow: 0 2px 24px rgba(0,0,0,.8); }
  .showcase-feats { opacity: 1; transform: translate(-50%, 0); }
  .showcase-feats li { opacity: 1; transform: none; }
  .showcase-dim { opacity: .5; }
  .xp-bar i { width: 78%; }
  .ask-type { width: auto; border-right: 0; }
  .ask-a div { opacity: 1; }
  .fav-heart { color: #ff5a52; }
  .fav-toast { opacity: 1; }
  .showcase-phone { transform: none; }
  #showcaseScreen { transition: none; }
  .hero-phone .phone { transition: none; }
}

/* =========================================================
   响应式
   ========================================================= */
@media (max-width: 960px) {
  .nav-links { display: none; }
  .demo-stage { grid-template-columns: 1fr; justify-items: center; }
  .demo-side { width: 100%; }
  .arch-layer { flex-direction: column; gap: 14px; }
  .arch-tag { width: auto; }
  .showcase-note { display: none; }
  .showcase-copy .h2 { font-size: clamp(26px, 6vw, 40px); }
}

@media (max-width: 640px) {
  .hero { padding-top: 120px; }
  .hero-phone .phone { margin-bottom: -40px; }
  .feature-head { flex-direction: column; }
  .swatch { min-width: calc((100% - 36px) / 4); }
  .footer-note { flex-direction: column; }
}