/* ============================================================
   Sichuan Citur Travel — Landing Page v2
   方向：D2「暗调电影」— 深炭黑底，暖白字，琥珀金只做发丝线与端点
   ============================================================ */

/* 自托管子集字体：思源宋体 SemiBold，按本页实际用字子集化（395 字形 / 62KB）。
   不用 Google Fonts —— 大陆被墙，对国内旅行社与渠道等于静默失效。
   改动标题文案后需重跑 scripts/build-font.sh 重新生成，否则新字会掉回系统字体。 */
@font-face {
  font-family: "Noto Serif SC Subset";
  src: url("../font/noto-serif-sc-600.v2.woff2") format("woff2");
  font-weight: 600;
  font-style: normal;
  font-display: swap;
}

:root {
  /* 色 */
  --ink-900: #0b0c0e;
  --ink-800: #101216;
  --ink-700: #16181c;
  --paper: #f2efe9;
  --paper-dim: rgba(242, 239, 233, 0.72);
  --paper-faint: rgba(242, 239, 233, 0.6); /* ≥4.5:1 against --ink-900/--ink-800，见交付前自检 */
  --gold: #d8a24a;
  --gold-dim: rgba(216, 162, 74, 0.38);
  --hairline: rgba(242, 239, 233, 0.12);
  --scrim: rgba(11, 12, 14, 0.88);

  /* 字 */
  --font-display: "Noto Serif SC Subset", "Songti SC", "Noto Serif SC", "Source Han Serif SC", "STSong", Georgia, serif;
  --font-body: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  --font-mono: "SF Mono", "JetBrains Mono", Menlo, Consolas, "Courier New", monospace;

  --t-hero: clamp(3rem, 1.2rem + 8vw, 8rem);
  --t-h2: clamp(1.75rem, 1.2rem + 2.4vw, 3rem);
  --t-h3: clamp(1.125rem, 1rem + 0.6vw, 1.375rem);
  --t-stat: clamp(2.25rem, 1.4rem + 3.6vw, 4rem);
  --t-body: clamp(0.9375rem, 0.9rem + 0.25vw, 1.0625rem);
  --t-micro: 0.6875rem;

  --section: clamp(4.5rem, 3rem + 6vw, 9rem);
  --gutter: clamp(1.25rem, 4vw, 4rem);
  --measure: 34rem;
  --content: 76rem;

  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

/* ---------- reset / base ---------- */

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--ink-900);
  color: var(--paper);
  font-family: var(--font-body);
  font-size: var(--t-body);
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

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

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

h1,
h2,
h3,
p {
  margin: 0;
}

:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: var(--t-micro);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--paper-faint);
}

/* ---------- buttons — 描边，透明底，绝无渐变/填充 ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  padding: 0.85em 1.75em;
  border: 1px solid var(--hairline);
  border-radius: 2px;
  background: transparent;
  color: var(--paper);
  font-size: 0.9375rem;
  letter-spacing: 0.02em;
  transition: border-color 180ms var(--ease), background-color 180ms var(--ease);
}

.btn:hover,
.btn:focus-visible {
  border-color: var(--gold);
  background: rgba(216, 162, 74, 0.08);
}

.btn-primary {
  border-color: var(--gold-dim);
}

/* ---------- 顶栏 ---------- */

.site-nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 40;
  padding: 1.1rem var(--gutter);
  border-bottom: 1px solid transparent;
  transition: background-color 220ms var(--ease), border-color 220ms var(--ease);
}

.site-nav.scrolled {
  background: var(--ink-900);
  border-bottom-color: var(--hairline);
}

.nav-inner {
  max-width: var(--content);
  margin: 0 auto;
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.nav-brand {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  margin-right: auto;
}

.nav-brand img {
  width: 2rem;
  height: auto;
}

.brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.25;
}

.brand-text strong {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.0625rem;
}

.brand-text small {
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.16em;
  color: var(--paper-faint);
}

.nav-links {
  display: flex;
  gap: clamp(1rem, 2vw, 2.25rem);
}

.nav-links a {
  font-size: 0.875rem;
  color: var(--paper-dim);
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
  transition: color 180ms var(--ease), border-color 180ms var(--ease);
}

.nav-links a:hover,
.nav-links a:focus-visible {
  color: var(--paper);
  border-bottom-color: var(--gold);
}

.nav-cta {
  padding: 0.6em 1.35em;
  font-size: 0.8125rem;
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }
}

/* ---------- Hero ---------- */

.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  align-items: flex-end;
  overflow: hidden;
}

.hero-media {
  position: absolute;
  inset: 0;
  z-index: -2;
}

.hero-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: 62% 50%;
}

.hero-media::after {
  content: "";
  position: absolute;
  inset: 55% 0 0 0;
  background: linear-gradient(to bottom, transparent, var(--ink-900) 92%);
  z-index: -1;
}

.hero-content {
  position: relative;
  width: 100%;
  max-width: var(--content);
  margin: 0 auto;
  padding: 0 var(--gutter) clamp(3rem, 4vw + 1rem, 6rem);
}

.hero-kicker {
  margin-bottom: 1.25rem;
}

.hero h1 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--t-hero);
  line-height: 1;
  letter-spacing: 0.02em;
}

.hero-sub {
  margin-top: 1rem;
  font-size: clamp(1.0625rem, 0.95rem + 0.6vw, 1.375rem);
  color: var(--paper-dim);
}

.hero-en {
  margin-top: 0.6rem;
  font-family: var(--font-mono);
  font-size: var(--t-micro);
  letter-spacing: 0.18em;
  color: var(--paper-faint);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-top: 2.25rem;
}

/* ---------- 数据条 ---------- */

.stats {
  border-bottom: 1px solid var(--hairline);
}

.stats-grid {
  max-width: var(--content);
  margin: 0 auto;
  padding: clamp(2.5rem, 2rem + 2vw, 4rem) var(--gutter);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}

.stats-grid > div {
  padding: 0 clamp(0.75rem, 2vw, 2rem);
  border-left: 1px solid var(--hairline);
}

.stats-grid > div:first-child {
  border-left: none;
  padding-left: 0;
}

.stats-grid dt {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--t-stat);
  font-variant-numeric: tabular-nums;
  line-height: 1;
}

.stats-grid dt i {
  font-style: normal;
  color: var(--gold);
  font-size: 0.55em;
  margin-left: 0.1em;
}

.stats-grid dd {
  margin-top: 0.6rem;
  font-size: 0.8125rem;
  color: var(--paper-faint);
}

@media (max-width: 640px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    row-gap: 2rem;
  }

  .stats-grid > div:nth-child(2n + 1) {
    border-left: none;
    padding-left: 0;
  }

  .stats-grid > div:nth-child(n + 3) {
    border-left: 1px solid var(--hairline);
  }

  .stats-grid > div:nth-child(2n + 1):nth-child(n + 3) {
    border-left: none;
  }
}

/* ---------- 通用 section ---------- */

.section {
  padding: var(--section) var(--gutter);
}

.section-head {
  max-width: var(--content);
  margin: 0 auto clamp(2.5rem, 2rem + 2vw, 4rem);
}

.section-head h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--t-h2);
  margin-top: 0.6rem;
}

.section-sub {
  margin-top: 0.85rem;
  max-width: var(--measure);
  color: var(--paper-dim);
}

.section-sub strong {
  color: var(--gold);
  font-weight: 600;
}

/* ---------- 公司简介 ---------- */

.about-grid {
  max-width: var(--content);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: clamp(2rem, 4vw, 4.5rem);
  align-items: start;
}

.about-photo img {
  width: 100%;
  height: auto;
  border: 1px solid var(--hairline);
}

.about-photo figcaption {
  margin-top: 0.75rem;
  font-family: var(--font-mono);
  font-size: var(--t-micro);
  letter-spacing: 0.06em;
  color: var(--paper-faint);
}

.lede {
  font-family: var(--font-display);
  font-size: clamp(1.25rem, 1.05rem + 1vw, 1.75rem);
  line-height: 1.5;
  max-width: var(--measure);
}

.about-copy p {
  max-width: var(--measure);
  color: var(--paper-dim);
  margin-top: 1.15rem;
}

.about-copy strong {
  color: var(--paper);
  font-weight: 600;
}

.about-points {
  margin-top: 2rem;
  border-top: 1px solid var(--hairline);
}

.about-points li {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1.5rem;
  padding: 1.1rem 0;
  border-bottom: 1px solid var(--hairline);
}

.about-points strong {
  min-width: 11rem;
  font-weight: 600;
}

.about-points span {
  color: var(--paper-faint);
  font-size: 0.875rem;
}

@media (max-width: 900px) {
  .about-grid {
    grid-template-columns: 1fr;
  }
}

/* ---------- 发展历程 ---------- */

.timeline-grid {
  max-width: var(--content);
  margin: 0 auto;
  display: grid;
  grid-template-columns: minmax(0, 0.6fr) minmax(0, 1.4fr);
  gap: clamp(2rem, 4vw, 4.5rem);
}

.timeline-head {
  position: sticky;
  top: 6rem;
  align-self: start;
}

.timeline-track {
  position: relative;
  padding-left: clamp(2rem, 4vw, 3rem);
  border-left: 1px solid var(--gold-dim);
}

.timeline-track li {
  position: relative;
  padding-bottom: clamp(2.5rem, 2rem + 2vw, 4rem);
}

.timeline-track li:last-child {
  padding-bottom: 0;
}

.timeline-track li::before {
  content: "";
  position: absolute;
  left: calc(clamp(2rem, 4vw, 3rem) * -1 - 4px);
  top: 0.35rem;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  border: 1px solid var(--gold);
  background: var(--ink-900);
}

.timeline-track time {
  display: block;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--t-stat);
  font-variant-numeric: tabular-nums;
  line-height: 1;
  color: var(--paper);
}

.timeline-track h3 {
  margin-top: 0.9rem;
  font-size: var(--t-h3);
  font-weight: 600;
}

.timeline-track p {
  margin-top: 0.6rem;
  max-width: var(--measure);
  color: var(--paper-dim);
}

@media (max-width: 900px) {
  .timeline-grid {
    grid-template-columns: 1fr;
  }

  .timeline-head {
    position: static;
  }
}

/* ---------- 业务模式 ---------- */

.model-grid {
  max-width: var(--content);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: stretch;
  gap: clamp(1.5rem, 3vw, 3rem);
}

.model-card {
  padding: clamp(1.75rem, 2vw, 2.5rem) 0;
}

.model-card--dest {
  position: relative;
  padding: clamp(1.75rem, 2vw, 2.5rem);
  isolation: isolate;
}

.model-card--dest::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image: linear-gradient(var(--scrim), var(--scrim)), url("../img/coast-dusk.v2.jpg");
  background-size: cover;
  background-position: center;
}

@supports (background-image: image-set(url(a.avif) type("image/avif"))) {
  .model-card--dest::before {
    background-image: linear-gradient(var(--scrim), var(--scrim)),
      image-set(
        url("../img/coast-dusk.v2.avif") type("image/avif"),
        url("../img/coast-dusk.v2.webp") type("image/webp"),
        url("../img/coast-dusk.v2.jpg") type("image/jpeg")
      );
  }
}

.model-tag {
  font-family: var(--font-mono);
  font-size: var(--t-micro);
  letter-spacing: 0.18em;
  color: var(--gold);
}

.model-card h3 {
  margin-top: 0.85rem;
  font-family: var(--font-display);
  font-size: var(--t-h3);
  font-weight: 600;
}

.model-card > p {
  margin-top: 1rem;
  max-width: var(--measure);
  color: var(--paper-dim);
}

.model-card ul {
  margin-top: 1.5rem;
  border-top: 1px solid var(--hairline);
}

.model-card--dest ul {
  border-top-color: rgba(242, 239, 233, 0.22);
}

.model-card li {
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--hairline);
  font-size: 0.875rem;
  color: var(--paper-dim);
}

.model-card--dest li {
  border-bottom-color: rgba(242, 239, 233, 0.22);
}

.model-link {
  align-self: center;
  font-family: var(--font-display);
  font-size: var(--t-h2);
  color: var(--gold);
}

@media (max-width: 800px) {
  .model-grid {
    grid-template-columns: 1fr;
  }

  .model-link {
    display: none;
  }
}

/* ---------- 航线网络 ---------- */

.route-map-wrap {
  position: relative;
  width: 100%;
  height: clamp(360px, 42vw, 620px);
  margin: 0 0 clamp(2.5rem, 3vw, 4rem);
}

.route-map {
  width: 100%;
  height: 100%;
  display: block;
}

.route-grid {
  stroke: rgba(242, 239, 233, 0.16);
  stroke-width: 0.75;
  stroke-dasharray: 1.5 5;
}

.route-path {
  fill: none;
  stroke: var(--gold-dim);
  stroke-width: 1;
}

.route-path.is-signature {
  stroke: var(--gold);
  stroke-width: 1.75;
}

.route-path.is-new {
  stroke: var(--gold);
  stroke-width: 1;
}

.route-path.is-planned {
  stroke: var(--gold-dim);
  stroke-dasharray: 0.018 0.014; /* pathLength="1" 归一化后的比例值，不能用像素值（会被判定为整段实线） */
  opacity: 0.75;
}

.route-dot {
  fill: var(--ink-900);
  stroke: var(--gold);
  stroke-width: 1.2;
}

.route-label-code {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.08em;
  fill: var(--paper-dim);
}

.route-label-city {
  font-family: var(--font-body);
  font-size: 7.5px;
  fill: var(--paper-faint);
}

.route-legend {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  padding: 0.6rem 0.85rem;
  background: rgba(11, 12, 14, 0.62);
  border: 1px solid var(--hairline);
}

.route-legend li {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.02em;
  color: var(--paper-dim);
  white-space: nowrap;
}

.legend-swatch {
  display: inline-block;
  width: 1.25rem;
  height: 0;
  border-top-style: solid;
  flex: none;
}

.legend-swatch--signature {
  border-top-width: 2.5px;
  border-top-color: var(--gold);
}

.legend-swatch--new {
  border-top-width: 1.5px;
  border-top-color: var(--gold);
}

.legend-swatch--planned {
  border-top-width: 1.5px;
  border-top-style: dashed;
  border-top-color: var(--gold-dim);
}

@media (max-width: 768px) {
  /* SVG 是 930x480（约 1.94:1），桌面端用固定高度框强行撑满；窄屏改让框跟着 SVG
     真实比例走，避免 preserveAspectRatio 在四四方方的框里上下留白。 */
  .route-map-wrap {
    height: auto;
  }

  .route-map {
    height: auto;
    aspect-ratio: 930 / 480;
  }

  .route-label-city {
    display: none;
  }

  .route-label-code {
    font-size: 15px;
    letter-spacing: 0.1em;
    fill: var(--paper-dim);
  }

  /* 图例挪到地图下方，横排纯文字 + 短线示意，不再用带底色的悬浮框喧宾夺主 */
  .route-legend {
    position: static;
    margin-top: 0.85rem;
    flex-direction: row;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.5rem 1.1rem;
    padding: 0;
    background: none;
    border: none;
  }

  .route-legend li {
    font-size: var(--t-micro);
  }
}

@media (max-width: 600px) {
  .route-label-code {
    font-size: 22px;
  }
}

@media (max-width: 400px) {
  .route-label-code {
    font-size: 36px;
  }
}

html.js-anim .route-path:not(.is-planned) {
  stroke-dasharray: 1;
  stroke-dashoffset: 1;
  transition: stroke-dashoffset 900ms var(--ease);
  transition-delay: calc(var(--i, 0) * 90ms);
}

html.js-anim .route-path.is-planned {
  opacity: 0;
  transition: opacity 900ms var(--ease);
  transition-delay: calc(var(--i, 0) * 90ms);
}

html.js-anim .route-map.in-view .route-path:not(.is-planned) {
  stroke-dashoffset: 0;
}

html.js-anim .route-map.in-view .route-path.is-planned {
  opacity: 0.75;
}

.board-scroll {
  overflow-x: auto;
}

.board {
  min-width: 34rem;
  border-top: 1px solid var(--hairline);
}

.board-head,
.board-row {
  display: grid;
  grid-template-columns: 9rem 1fr 11rem;
  gap: 1rem;
  padding: 0.9rem 0;
  border-bottom: 1px solid var(--hairline);
}

.board-head {
  font-family: var(--font-mono);
  font-size: var(--t-micro);
  letter-spacing: 0.1em;
  color: var(--paper-faint);
}

.board-row {
  align-items: center;
}

.board-row .code {
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}

.status {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-size: 0.8125rem;
  color: var(--paper-dim);
}

.status::before {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--gold-dim);
}

.status.on::before {
  background: var(--gold);
}

.status.new::before {
  background: var(--paper);
}

.status.plan::before {
  background: transparent;
  border: 1px solid var(--paper-faint);
}

.star-route {
  margin-top: clamp(2.5rem, 3vw, 4rem);
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 2rem;
  align-items: center;
  background: var(--ink-800);
  padding: clamp(1.75rem, 2vw, 2.5rem) clamp(1.75rem, 3vw, 3rem);
}

.star-title h3 {
  margin-top: 0.5rem;
  font-family: var(--font-display);
  font-size: var(--t-h3);
  font-weight: 600;
}

.star-note {
  margin-top: 0.5rem;
  color: var(--paper-faint);
  font-size: 0.875rem;
}

.star-stats {
  display: flex;
  gap: clamp(1.5rem, 3vw, 3rem);
}

.star-stats dt {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: var(--t-stat);
  font-variant-numeric: tabular-nums;
  line-height: 1;
}

.star-stats dt i {
  font-style: normal;
  color: var(--gold);
  font-size: 0.55em;
}

.star-stats dd {
  margin-top: 0.4rem;
  font-size: 0.8125rem;
  color: var(--paper-faint);
}

@media (max-width: 700px) {
  .star-route {
    grid-template-columns: 1fr;
  }

  .star-stats {
    flex-wrap: wrap;
    gap: 1.75rem;
  }
}

/* ---------- 合作航司 ---------- */

.partner-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--hairline);
  border-left: 1px solid var(--hairline);
}

.partner-grid li {
  padding: clamp(1.5rem, 2vw, 2rem) clamp(1rem, 2vw, 1.5rem);
  border-right: 1px solid var(--hairline);
  border-bottom: 1px solid var(--hairline);
}

.partner-grid strong {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--t-h2);
  color: var(--paper);
}

.partner-grid span {
  display: block;
  margin-top: 0.5rem;
  font-size: 0.875rem;
  color: var(--paper-dim);
}

.partner-grid small {
  display: block;
  margin-top: 0.15rem;
  font-size: 0.75rem;
  color: var(--paper-faint);
}

.channel-strip {
  margin-top: clamp(2.5rem, 3vw, 4rem);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--hairline);
}

.channel-strip div {
  padding: 1.25rem clamp(1rem, 2vw, 1.5rem) 0;
  border-left: 1px solid var(--hairline);
}

.channel-strip div:first-child {
  border-left: none;
  padding-left: 0;
}

.channel-strip strong {
  font-family: var(--font-mono);
  font-size: 0.9375rem;
  color: var(--gold);
}

.channel-strip span {
  display: block;
  margin-top: 0.35rem;
  font-size: 0.8125rem;
  color: var(--paper-faint);
}

@media (max-width: 700px) {
  .partner-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .channel-strip {
    grid-template-columns: repeat(2, 1fr);
    row-gap: 1.5rem;
  }

  .channel-strip div:nth-child(2n + 1) {
    border-left: none;
    padding-left: 0;
  }
}

@media (max-width: 420px) {
  .partner-grid {
    grid-template-columns: 1fr;
  }
}

/* ---------- CTA ---------- */

.cta-band {
  position: relative;
  padding: var(--section) var(--gutter);
  isolation: isolate;
}

.cta-band::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background-image: linear-gradient(var(--scrim), var(--scrim)), url("../img/ramp-night.v2.jpg");
  background-size: cover;
  background-position: center;
}

@supports (background-image: image-set(url(a.avif) type("image/avif"))) {
  .cta-band::before {
    background-image: linear-gradient(var(--scrim), var(--scrim)),
      image-set(
        url("../img/ramp-night.v2.avif") type("image/avif"),
        url("../img/ramp-night.v2.webp") type("image/webp"),
        url("../img/ramp-night.v2.jpg") type("image/jpeg")
      );
  }
}

.cta-inner {
  max-width: var(--content);
  margin: 0 auto;
  text-align: left;
}

.cta-inner h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--t-h2);
  line-height: 1.2;
}

.cta-inner p {
  margin-top: 1rem;
  max-width: var(--measure);
  color: var(--paper-dim);
}

.cta-inner .hero-actions {
  margin-top: 2rem;
}

/* ---------- 页脚 ---------- */

.site-footer {
  border-top: 1px solid var(--hairline);
  padding: clamp(2.5rem, 3vw, 3.5rem) var(--gutter);
}

.footer-inner {
  max-width: var(--content);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1.5rem 3rem;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.footer-brand img {
  width: 2.25rem;
  height: auto;
}

.footer-brand strong {
  display: block;
  font-family: var(--font-display);
  font-weight: 600;
}

.footer-brand span {
  display: block;
  margin-top: 0.2rem;
  font-family: var(--font-mono);
  font-size: 0.625rem;
  letter-spacing: 0.1em;
  color: var(--paper-faint);
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.75rem;
  align-items: center;
}

.footer-links a {
  font-size: 0.875rem;
  color: var(--paper-dim);
  border-bottom: 1px solid transparent;
  transition: color 180ms var(--ease), border-color 180ms var(--ease);
}

.footer-links a:hover,
.footer-links a:focus-visible {
  color: var(--paper);
  border-bottom-color: var(--gold);
}

.footer-meta,
.footer-legal {
  grid-column: 1 / -1;
  font-size: 0.8125rem;
  color: var(--paper-faint);
}

.footer-legal {
  margin-top: -0.5rem;
}

@media (max-width: 640px) {
  .footer-inner {
    grid-template-columns: 1fr;
  }
}

/* ---------- Hero 加载编排（仅 JS 启用时） ---------- */

html.js-anim [data-stage] {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 700ms var(--ease), transform 700ms var(--ease);
  transition-delay: calc(var(--stage, 0) * 80ms);
}

html.js-anim.is-ready [data-stage] {
  opacity: 1;
  transform: none;
}

/* ---------- 无障碍：减少动效 ---------- */

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

  [data-stage] {
    transition: none !important;
    opacity: 1 !important;
    transform: none !important;
  }

  .route-path {
    transition: none !important;
    stroke-dashoffset: 0 !important;
  }

  .route-path:not(.is-planned) {
    opacity: 1 !important;
  }
}