/* 桃花坞里柳边风 个人站 · 共享样式
   基线见 docs/research/20261105-个人站风格方案.md：
   冷白底 #F7F8FA / 墨字 #171A1D / 次要 #5B6470 / 薄荷绿 #2E9E63 只做标记 / CTA 墨色块。
   无外部依赖、无外部字体、无统计脚本。 */

:root {
  --bg: #F7F8FA;
  --surface: #FFFFFF;
  --ink: #171A1D;
  --ink-2: #5B6470;
  --ink-3: #8A939E;
  --line: #E3E6EA;
  --line-soft: #EDEFF2;
  --mint: #2E9E63;
  --mint-soft: #E9F4EE;
  --orange: #E8913C;
  --cta: #1B1F24;
  --radius: 12px;
  --radius-lg: 22px;
  --maxw: 1120px;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas,
    "Liberation Mono", monospace;
}

* { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 76px;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }

:focus-visible {
  outline: 2px solid var(--mint);
  outline-offset: 3px;
  border-radius: 4px;
}

.wrap {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 24px;
}

.skip {
  position: absolute;
  left: -9999px;
  top: 0;
}

/* ---------------------------------------------------------------- 顶栏 */
.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  background: rgba(247, 248, 250, .92);
  -webkit-backdrop-filter: saturate(1.4) blur(10px);
  backdrop-filter: saturate(1.4) blur(10px);
  border-bottom: 1px solid var(--line);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 64px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  min-height: 44px;
}

.brand img {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: block;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
}

.brand-name {
  font-size: 15px;
  font-weight: 650;
  letter-spacing: .01em;
}

.brand-sub {
  font-size: 11px;
  color: var(--ink-3);
  letter-spacing: .08em;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.site-nav a {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 12px;
  font-size: 14px;
  color: var(--ink-2);
  border-radius: 8px;
  transition: color .16s ease, background-color .16s ease;
}

.site-nav a:hover { color: var(--ink); background: rgba(23, 26, 29, .04); }
.site-nav a[aria-current="page"] { color: var(--ink); font-weight: 600; }

.site-nav .nav-cta {
  margin-left: 8px;
  color: var(--ink);
  border: 1px solid var(--line);
  background: var(--surface);
  font-weight: 600;
  gap: 6px;
}

.site-nav .nav-cta:hover { background: var(--cta); border-color: var(--cta); color: #fff; }

/* ---------------------------------------------------------------- 首屏 */
.hero { padding: 76px 0 64px; }

.avatar-hero {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.avatar-hero img {
  display: block;
  width: min(300px, 76%);
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: 50%;
  border: 1px solid var(--line);
  background: var(--surface);
  box-shadow: 0 20px 44px rgba(23, 26, 29, .08);
}

.avatar-hero figcaption {
  margin: 0;
  text-align: center;
  font-size: 13px;
  line-height: 1.7;
  color: var(--ink-2);
}

.avatar-hero figcaption b {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--ink);
}

.breadcrumb {
  padding: 24px 0 0;
  font-size: 13px;
  color: var(--ink-3);
}

.breadcrumb a { color: var(--ink-2); }
.breadcrumb a:hover { color: var(--ink); text-decoration: underline; }
.breadcrumb span { margin: 0 8px; }

.project-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 176px;
  gap: 40px;
  align-items: center;
  padding: 32px 36px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--surface);
}

.project-card .thumb {
  display: block;
  border: 1px solid var(--line);
  border-radius: 12px;
  overflow: hidden;
  background: #FBFCFD;
}

.project-card .thumb img {
  display: block;
  width: 100%;
  aspect-ratio: 9 / 19;
  object-fit: cover;
  object-position: top center;
}

.gallery.is-three { grid-template-columns: repeat(3, minmax(0, 1fr)); }


.hero-in {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(0, .92fr);
  align-items: center;
  gap: 56px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0 0 22px;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .14em;
  color: var(--ink-2);
  text-transform: uppercase;
}

.eyebrow::before {
  content: "";
  width: 18px;
  height: 1px;
  background: var(--mint);
}

.hero h1 {
  margin: 0;
  font-size: clamp(34px, 5vw, 56px);
  line-height: 1.24;
  font-weight: 650;
  letter-spacing: 0;
}

.hero h1 em {
  font-style: normal;
  box-shadow: inset 0 -.34em 0 var(--mint-soft);
}

.hero-lead {
  margin: 24px 0 0;
  max-width: 34em;
  font-size: 17px;
  line-height: 1.8;
  color: var(--ink-2);
}

.hero-lead strong { color: var(--ink); font-weight: 600; }

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 46px;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  cursor: pointer;
  transition: background-color .16s ease, color .16s ease, border-color .16s ease;
}

.btn-primary { background: var(--cta); color: #fff; }
.btn-primary:hover { background: #2C3238; }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--ink-3); background: var(--surface); }
.btn svg { width: 16px; height: 16px; flex: none; }

.hero-status {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px 18px;
  margin-top: 26px;
  font-size: 13px;
  color: var(--ink-3);
}

.hero-status .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--mint);
  display: inline-block;
  margin-right: 6px;
  vertical-align: 1px;
}

.hero-media { position: relative; }

.shot-frame {
  width: min(300px, 82%);
  margin: 0 auto;
  padding: 8px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 32px;
  box-shadow: 0 24px 60px rgba(23, 26, 29, .10);
}

.shot-frame img {
  display: block;
  width: 100%;
  border-radius: 25px;
}

.shot-caption {
  margin: 16px 0 0;
  text-align: center;
  font-size: 12px;
  color: var(--ink-3);
  font-variant-numeric: tabular-nums;
}

/* ---------------------------------------------------------------- 通用区块 */
.section { padding: 88px 0; border-top: 1px solid var(--line); }
.section-tight { padding: 64px 0; }

.section-head {
  display: grid;
  grid-template-columns: 64px minmax(0, 1fr);
  gap: 16px;
  align-items: start;
  margin-bottom: 48px;
}

.section-no {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .08em;
  color: var(--mint);
  padding-top: 7px;
  font-variant-numeric: tabular-nums;
}

.section-head h2 {
  grid-column: 2;
  grid-row: 1;
  margin: 0;
  font-size: clamp(26px, 3.4vw, 38px);
  line-height: 1.3;
  font-weight: 650;
  letter-spacing: 0;
}

.section-head p {
  grid-column: 2;
  grid-row: 2;
  margin: 12px 0 0;
  max-width: 38em;
  font-size: 16px;
  line-height: 1.75;
  color: var(--ink-2);
}

/* ---------------------------------------------------------------- 关于 */
.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.65fr) minmax(0, 1fr);
  gap: 64px;
  align-items: start;
}

.about-copy p {
  margin: 0 0 20px;
  font-size: 17px;
  line-height: 1.85;
  color: var(--ink-2);
}

.about-copy p:first-child { color: var(--ink); }
.about-copy p:last-child { margin-bottom: 0; }

.about-copy .verdict {
  margin-top: 28px;
  padding-left: 18px;
  border-left: 2px solid var(--mint);
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink);
}

.facts {
  border-top: 1px solid var(--line);
  margin: 0;
  padding: 0;
}

.facts dt {
  padding-top: 16px;
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--ink-3);
}

.facts dd {
  margin: 4px 0 0;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
  font-size: 15px;
  line-height: 1.6;
}

/* ---------------------------------------------------------------- 作品 */
.case-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 12px 16px;
  margin-bottom: 10px;
}

.case-head h3 {
  margin: 0;
  font-size: 25px;
  font-weight: 650;
  line-height: 1.4;
}

.case-head .en {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-3);
  letter-spacing: .04em;
}

.chips { display: flex; flex-wrap: wrap; gap: 8px; }

.chip {
  display: inline-flex;
  align-items: center;
  min-height: 26px;
  padding: 0 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  font-size: 12px;
  color: var(--ink-2);
  font-variant-numeric: tabular-nums;
}

.chip.is-live { border-color: #CFE7D9; background: var(--mint-soft); color: #226B45; }

.case-lead {
  margin: 16px 0 36px;
  max-width: 40em;
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink-2);
}

.gallery {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  margin-bottom: 44px;
}

.shot {
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.shot img {
  display: block;
  width: 100%;
  aspect-ratio: 9 / 19;
  object-fit: cover;
  object-position: top center;
  border: 1px solid #DCE1E7;
  border-radius: 16px;
  background: var(--surface);
  box-shadow: 0 12px 28px rgba(23, 26, 29, .05);
}

.shot.wide img {
  aspect-ratio: 9 / 19;
  object-fit: contain;
  object-position: center;
  padding: 10px;
  background: #FBFCFD;
}

.shot figcaption {
  font-size: 12px;
  line-height: 1.5;
  color: var(--ink-3);
}

.artifact {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 260px);
  gap: 48px;
  align-items: center;
  margin: 0 0 40px;
  padding: 32px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.artifact h4 {
  margin: 0 0 10px;
  font-size: 20px;
  font-weight: 650;
  line-height: 1.45;
}

.artifact p {
  margin: 0;
  max-width: 32em;
  font-size: 15px;
  line-height: 1.8;
  color: var(--ink-2);
}

.artifact img {
  display: block;
  width: auto;
  max-width: 100%;
  max-height: 460px;
  margin: 0 auto;
  padding: 8px;
  background: var(--surface);
  border: 1px solid #DCE1E7;
  border-radius: 14px;
  box-shadow: 0 12px 28px rgba(23, 26, 29, .05);
}

.feature-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 44px;
  border-top: 1px solid var(--line);
  margin: 0 0 36px;
  padding: 0;
  list-style: none;
}

.feature-list li {
  display: grid;
  grid-template-columns: 20px minmax(0, 1fr);
  gap: 10px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
  font-size: 15px;
  line-height: 1.7;
}

.feature-list li span.n {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--mint);
  padding-top: 4px;
}

.feature-list b { grid-column: 2; font-weight: 600; }
.feature-list em { grid-column: 2; font-style: normal; color: var(--ink-2); }

.case-actions { display: flex; flex-wrap: wrap; gap: 12px; }

.minor {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  margin-top: 44px;
}

.minor-card {
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.minor-card h4 {
  margin: 0 0 8px;
  font-size: 16px;
  font-weight: 650;
}

.minor-card p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-2);
}

.minor-card .tag {
  display: inline-block;
  margin-bottom: 10px;
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--ink-3);
}

.minor-card a { color: var(--mint); font-weight: 600; }

/* ---------------------------------------------------------------- 能力 */
.cap-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.cap {
  background: var(--surface);
  padding: 30px 28px;
}

.cap .cap-no {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: .08em;
  color: var(--mint);
}

.cap h3 {
  margin: 10px 0 10px;
  font-size: 18px;
  font-weight: 650;
  line-height: 1.4;
}

.cap p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink-2);
}

.rules {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 24px;
  margin-top: 38px;
}

.rule {
  padding-top: 16px;
  border-top: 1px solid var(--line);
}

.rule b {
  display: block;
  font-size: 14px;
  font-weight: 650;
  margin-bottom: 6px;
}

.rule span { font-size: 13px; line-height: 1.7; color: var(--ink-2); }

/* ---------------------------------------------------------------- 历程 */
.timeline { margin: 0; padding: 0; border-top: 1px solid var(--line); }

.tl-row {
  display: grid;
  grid-template-columns: 132px minmax(0, 1fr);
  gap: 28px;
  padding: 22px 0;
  border-bottom: 1px solid var(--line);
}

.tl-date {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--ink-3);
  letter-spacing: .04em;
  padding-top: 4px;
  font-variant-numeric: tabular-nums;
}

.tl-body h4 {
  margin: 0 0 6px;
  font-size: 17px;
  font-weight: 650;
}

.tl-body p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink-2);
}

/* ---------------------------------------------------------------- 原则 */
.principle-list {
  margin: 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--line);
  counter-reset: p;
}

.principle-list li {
  display: grid;
  grid-template-columns: 54px minmax(0, 1fr);
  gap: 20px;
  padding: 26px 0;
  border-bottom: 1px solid var(--line);
}

.principle-list li::before {
  counter-increment: p;
  content: counter(p, decimal-leading-zero);
  font-family: var(--mono);
  font-size: 11px;
  color: var(--mint);
  padding-top: 8px;
}

.principle-list b {
  grid-column: 2;
  display: block;
  font-size: 18px;
  font-weight: 650;
  margin-bottom: 6px;
}

.principle-list span { grid-column: 2; font-size: 14px; line-height: 1.8; color: var(--ink-2); }

/* ---------------------------------------------------------------- 联系 */
.contact {
  background: var(--cta);
  color: #F2F4F6;
  border-radius: var(--radius-lg);
  padding: 56px clamp(24px, 5vw, 56px);
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
  gap: 40px;
  align-items: center;
}

.contact h2 {
  margin: 0;
  font-size: clamp(24px, 3vw, 34px);
  line-height: 1.35;
  font-weight: 650;
}

.contact p {
  margin: 14px 0 0;
  max-width: 32em;
  font-size: 15px;
  line-height: 1.8;
  color: #B9BFC6;
}

.contact .links { display: grid; gap: 10px; }

.contact-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 60px;
  padding: 12px 18px;
  border: 1px solid rgba(255, 255, 255, .16);
  border-radius: 10px;
  font-size: 14px;
  color: #F2F4F6;
  transition: background-color .16s ease, border-color .16s ease;
}

.contact-link > span:first-child {
  display: flex;
  flex-direction: column;
  gap: 2px;
  line-height: 1.45;
}

.contact-link:hover { background: rgba(255, 255, 255, .07); border-color: rgba(255, 255, 255, .3); }
.contact-link small { color: #8E979F; font-size: 12px; }
.contact-link .arrow { color: var(--mint); font-size: 15px; }

/* 产品页长标题收一档，避免在双栏里折成三行 */
.hero h1.is-long { font-size: clamp(28px, 3.8vw, 44px); }

/* ---------------------------------------------------------------- 页脚 */
.site-footer {
  border-top: 1px solid var(--line);
  padding: 48px 0 40px;
  margin-top: 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) repeat(2, minmax(0, 1fr));
  gap: 32px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}

.footer-brand img { width: 24px; height: 24px; border-radius: 50%; }
.footer-brand b { font-size: 14px; font-weight: 650; }

.site-footer p {
  margin: 0;
  font-size: 13px;
  line-height: 1.8;
  color: var(--ink-2);
}

.site-footer h4 {
  margin: 0 0 12px;
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--ink-3);
  font-weight: 600;
}

.site-footer ul { margin: 0; padding: 0; list-style: none; }
.site-footer li { margin-bottom: 8px; }
.site-footer li a { font-size: 13px; color: var(--ink-2); }
.site-footer li a:hover { color: var(--ink); text-decoration: underline; }

.legal {
  margin-top: 36px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  font-size: 12px;
  line-height: 1.7;
  color: var(--ink-3);
}

.legal a { color: var(--ink-3); }
.legal a:hover { color: var(--ink-2); text-decoration: underline; }

/* 备案号 / 待补占位（旧文档页在用） */
.ph { color: var(--orange); font-weight: 600; }

/* ---------------------------------------------------------------- 旧文档页（隐私 / 协议 / 下载） */
.doc { padding: 64px 0 72px; }
.prose { max-width: 760px; margin: 0 auto; }
.prose h1 { font-size: clamp(26px, 3.4vw, 34px); line-height: 1.35; margin: 0 0 10px; }
.prose .updated { font-size: 13px; color: var(--ink-3); margin: 0 0 32px; }
.prose h2 { font-size: 20px; margin: 36px 0 10px; line-height: 1.4; }
.prose p, .prose li { font-size: 15px; line-height: 1.85; color: var(--ink-2); }
.prose b, .prose strong { color: var(--ink); font-weight: 600; }
.prose a { color: var(--mint); }
.prose a:hover { text-decoration: underline; }
.prose code {
  font-family: var(--mono);
  font-size: 13px;
  background: #EEF0F3;
  padding: 1px 5px;
  border-radius: 4px;
}
.prose table { width: 100%; border-collapse: collapse; margin: 18px 0; font-size: 14px; }
.prose th, .prose td {
  text-align: left;
  padding: 10px 12px;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
  color: var(--ink-2);
}
.prose th { color: var(--ink); font-weight: 600; background: #EFF1F4; }
.prose .note {
  margin: 24px 0;
  padding: 16px 18px;
  border-left: 2px solid var(--mint);
  background: var(--mint-soft);
  font-size: 14px;
  line-height: 1.8;
  color: var(--ink);
  border-radius: 0 8px 8px 0;
}

/* ---------------------------------------------------------------- 动效 */
@media (prefers-reduced-motion: no-preference) {
  .js .reveal {
    opacity: 0;
    transform: translateY(10px);
    transition: opacity .2s ease-out, transform .2s ease-out;
  }
  .js .reveal.in { opacity: 1; transform: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

/* ---------------------------------------------------------------- 响应式 */
@media (max-width: 960px) {
  .hero-in { grid-template-columns: minmax(0, 1fr); gap: 40px; }
  .hero { padding: 48px 0 56px; }
  .hero-media { order: 2; }
  .shot-frame { width: min(280px, 76%); }
  .about-grid { grid-template-columns: minmax(0, 1fr); gap: 36px; }
  .contact { grid-template-columns: minmax(0, 1fr); gap: 28px; }
  .footer-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .project-card { grid-template-columns: minmax(0, 1fr); gap: 28px; }
  .project-card .thumb { width: min(220px, 60%); }
  .avatar-hero img { width: min(240px, 62%); }
}

@media (max-width: 720px) {
  .wrap { padding: 0 20px; }

  .site-nav a:not(.nav-cta) { display: none; }
  .site-nav .nav-cta { margin-left: 0; }

  .section { padding: 60px 0; }
  .section-head { grid-template-columns: 1fr; gap: 8px; margin-bottom: 32px; }
  .section-no { padding-top: 0; }
  .section-head h2,
  .section-head p { grid-column: 1; grid-row: auto; }

  .hero h1 { font-size: clamp(30px, 8.6vw, 40px); }
  .hero-lead { font-size: 16px; margin-top: 18px; }
  .hero-actions .btn { flex: 1 1 auto; }
  .shot-frame { width: min(260px, 78%); }
  .hero-status { font-size: 12px; }

  .gallery {
    grid-template-columns: none;
    grid-auto-flow: column;
    grid-auto-columns: 44%;
    gap: 12px;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    -webkit-overflow-scrolling: touch;
    padding-bottom: 8px;
    margin-right: -20px;
    padding-right: 20px;
  }
  .gallery .shot { scroll-snap-align: start; }
  .gallery .shot.wide { grid-column: auto; }
  .gallery.is-three { grid-template-columns: none; }

  .avatar-hero { order: -1; gap: 12px; }
  .avatar-hero img { width: 132px; }
  .project-card { padding: 24px 20px; }

  .feature-list { grid-template-columns: 1fr; gap: 0; }
  .minor { grid-template-columns: 1fr; }
  .artifact { grid-template-columns: 1fr; gap: 24px; }
  .artifact img { margin: 0 auto; max-width: 240px; }
  .cap-grid { grid-template-columns: 1fr; }
  .rules { grid-template-columns: 1fr; gap: 16px; }
  .tl-row { grid-template-columns: 92px minmax(0, 1fr); gap: 16px; }
  .principle-list li { grid-template-columns: 40px minmax(0, 1fr); gap: 12px; }
  .contact { padding: 32px 24px; }
  .footer-grid { grid-template-columns: minmax(0, 1fr); gap: 24px; }
  .about-copy p { font-size: 16px; }
}

@media (max-width: 400px) {
  .brand-sub { display: none; }
  .hero-actions .btn { flex: 1 1 100%; }
}