/* ==========================================================================
   新濠CN官方品牌站 · 共享样式表 /assets/site.css
   入口对照母题：切角面板 + 斜切色带 + 等宽索引
   ========================================================================== */

/* ---------- 1. reset ---------- */
*,
*::before,
*::after { box-sizing: border-box; }

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

body, h1, h2, h3, h4, p, ul, ol, li, figure, figcaption, blockquote {
  margin: 0;
  padding: 0;
}

ul, ol { list-style: none; }

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

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  cursor: pointer;
}

a { color: inherit; }

/* ---------- 2. 变量 ---------- */
:root {
  --clr-lake: #0E5C8A;
  --clr-lake-deep: #073D5E;
  --clr-lake-soft: #A9CFE3;
  --clr-dusk: #4A3A6B;
  --clr-dusk-soft: #C7BEDC;
  --clr-gold: #C8A44C;
  --clr-ember: #D4542F;
  --clr-cream: #F6F1E6;
  --clr-white: #FBFCFD;
  --clr-ink: #241F1A;

  --font-display: "Source Han Sans SC", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: "Source Han Sans SC", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-mono: "Source Han Mono SC", "IBM Plex Mono", "JetBrains Mono", monospace;

  --shell: 1320px;
  --gutter: 96px;
  --cut: 20px;
  --measure: 38em;

  --hair: rgba(36, 31, 26, 0.2);
  --hair-soft: rgba(36, 31, 26, 0.12);
  --hair-light: rgba(251, 252, 253, 0.22);

  --band-pad: clamp(48px, 7vw, 104px);
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);

  --text-soft: rgba(36, 31, 26, 0.78);
  --accent-local: var(--clr-lake);
}

@media (max-width: 1200px) { :root { --gutter: 48px; } }
@media (max-width: 680px) { :root { --gutter: 20px; --cut: 14px; } }

/* ---------- 3. 基础排版 ---------- */
body {
  background-color: var(--clr-cream);
  color: var(--clr-ink);
  font-family: var(--font-body);
  font-size: clamp(16.5px, 1.05vw, 18.5px);
  font-weight: 400;
  line-height: 1.85;
  letter-spacing: 0.01em;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

.display {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(44px, 7vw, 128px);
  line-height: 0.94;
  letter-spacing: -0.02em;
  margin: 0;
}

.display--sm {
  font-size: clamp(30px, 4vw, 58px);
  line-height: 1.02;
}

.h2 {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(26px, 3.2vw, 44px);
  line-height: 1.16;
  letter-spacing: -0.01em;
}

.h3 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(19px, 1.7vw, 24px);
  line-height: 1.35;
  letter-spacing: 0;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.16em;
  color: var(--accent-local);
}

.eyebrow::before {
  content: "";
  width: 28px;
  height: 2px;
  background: var(--clr-gold);
  flex: none;
}

.lede {
  font-size: clamp(17px, 1.3vw, 20px);
  line-height: 1.8;
  color: var(--text-soft);
  max-width: var(--measure);
}

.prose {
  max-width: var(--measure);
}

.prose > * + * { margin-top: 1.05em; }

.prose p { color: var(--text-soft); }

.prose h2,
.prose h3 {
  margin-top: 1.7em;
  color: inherit;
}

.prose ul {
  display: grid;
  gap: 0.55em;
}

.prose ul li {
  position: relative;
  padding-left: 24px;
  color: var(--text-soft);
}

.prose ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.92em;
  width: 12px;
  height: 1px;
  background: var(--clr-gold);
}

.mono {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
}

/* ---------- 4. 容器与色彩分区 ---------- */
.shell {
  width: 100%;
  max-width: var(--shell);
  margin: 0 auto;
  padding-left: var(--gutter);
  padding-right: var(--gutter);
}

.section { padding: var(--band-pad) 0; }

.page-head { padding: clamp(40px, 6vw, 88px) 0 clamp(24px, 4vw, 48px); }

.band { padding: var(--band-pad) 0; }

.band--cream { background: var(--clr-cream); }

.band--white { background: var(--clr-white); }

.band--soft {
  background: var(--clr-lake-soft);
  color: var(--clr-ink);
}

.band--lake {
  background: var(--clr-lake);
  color: var(--clr-white);
}

.band--deep {
  background: var(--clr-lake-deep);
  color: var(--clr-white);
}

.band--dusk {
  background: var(--clr-dusk);
  color: var(--clr-white);
}

.band--gold {
  background: var(--clr-gold);
  color: var(--clr-ink);
}

.band--lake,
.band--deep,
.band--dusk {
  --text-soft: rgba(251, 252, 253, 0.82);
  --accent-local: var(--clr-gold);
  --hair: rgba(251, 252, 253, 0.24);
  --hair-soft: rgba(251, 252, 253, 0.14);
}

.texture {
  position: relative;
  background-color: var(--clr-cream);
}

.texture::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  opacity: 0.55;
  background-image:
    repeating-linear-gradient(118deg, rgba(7, 61, 94, 0.07) 0 1px, transparent 1px 16px),
    repeating-linear-gradient(28deg, rgba(74, 58, 107, 0.05) 0 1px, transparent 1px 27px);
}

.texture > * { position: relative; }

/* ---------- 5. 分隔与装饰 ---------- */
.slant-rule {
  height: 8px;
  border: 0;
  background: linear-gradient(
    90deg,
    var(--clr-gold) 0 18%,
    var(--clr-lake) 18% 62%,
    var(--clr-dusk) 62% 100%
  );
}

.slant-rule--thin { height: 4px; }

.rail {
  height: 1px;
  border: 0;
  background: var(--hair);
}

.rail--gold {
  background: linear-gradient(90deg, var(--clr-gold), rgba(200, 164, 76, 0));
}

/* ---------- 6. 网格 ---------- */
.grid {
  display: grid;
  gap: clamp(20px, 3vw, 36px);
}

.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--4 { grid-template-columns: repeat(4, minmax(0, 1fr)); }

@media (max-width: 1000px) {
  .grid--3,
  .grid--4 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 680px) {
  .grid--2,
  .grid--3,
  .grid--4 { grid-template-columns: minmax(0, 1fr); }
}

/* ---------- 7. 面板 / 标签 / 序号 ---------- */
.panel {
  position: relative;
  background: var(--clr-white);
  border: 1px solid var(--hair);
  padding: clamp(20px, 2.6vw, 34px);
  clip-path: polygon(
    0 0,
    100% 0,
    100% calc(100% - var(--cut)),
    calc(100% - var(--cut)) 100%,
    0 100%
  );
}

.panel--deep {
  background: var(--clr-lake-deep);
  color: var(--clr-white);
  border-color: transparent;
}

.panel--dusk {
  background: var(--clr-dusk);
  color: var(--clr-white);
  border-color: transparent;
}

.panel--cream {
  background: var(--clr-cream);
}

.panel--gold {
  background: var(--clr-gold);
  color: var(--clr-ink);
  border-color: transparent;
}

.panel--line {
  background: transparent;
  border: 1px solid var(--hair);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: 0.1em;
  line-height: 1.6;
  padding: 4px 10px;
  background: var(--clr-dusk-soft);
  color: var(--clr-ink);
}

.tag--gold {
  background: var(--clr-gold);
  color: var(--clr-ink);
}

.tag--ember {
  background: var(--clr-ember);
  color: var(--clr-white);
}

.tag--line {
  background: transparent;
  border: 1px solid currentColor;
  color: var(--clr-lake);
}

.band--deep .tag--line,
.band--lake .tag--line,
.band--dusk .tag--line {
  color: var(--clr-gold);
}

.idx {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 34px;
  height: 34px;
  padding: 0 8px;
  border: 1px solid var(--clr-gold);
  border-radius: 50%;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: inherit;
  flex: none;
}

/* ---------- 8. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 14px;
  letter-spacing: 0.1em;
  line-height: 1.2;
  padding: 14px 22px;
  text-decoration: none;
  border: 1px solid transparent;
  clip-path: polygon(
    0 0,
    100% 0,
    100% calc(100% - 12px),
    calc(100% - 12px) 100%,
    0 100%
  );
  transition: background-color 0.2s var(--ease), color 0.2s var(--ease),
    border-color 0.2s var(--ease);
}

.btn--primary {
  background: var(--clr-lake);
  color: var(--clr-white);
}

.btn--primary:hover,
.btn--primary:focus-visible {
  background: var(--clr-lake-deep);
  color: var(--clr-white);
}

.btn--gold {
  background: var(--clr-gold);
  color: var(--clr-ink);
}

.btn--gold:hover,
.btn--gold:focus-visible {
  background: var(--clr-dusk);
  color: var(--clr-white);
}

.btn--ghost {
  background: transparent;
  border-color: currentColor;
  color: var(--clr-lake-deep);
}

.btn--ghost:hover,
.btn--ghost:focus-visible {
  background: var(--clr-lake-deep);
  border-color: var(--clr-lake-deep);
  color: var(--clr-white);
}

.btn--line {
  background: transparent;
  border-color: var(--clr-gold);
  color: inherit;
}

.btn--line:hover,
.btn--line:focus-visible {
  background: var(--clr-gold);
  color: var(--clr-ink);
}

/* ---------- 9. 面包屑 ---------- */
.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  gap: 6px 8px;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  color: var(--accent-local);
}

.breadcrumbs li {
  display: flex;
  align-items: center;
  gap: 8px;
}

.breadcrumbs li + li::before {
  content: "/";
  color: var(--clr-gold);
}

.breadcrumbs a {
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

.breadcrumbs a:hover {
  border-bottom-color: currentColor;
}

/* ---------- 10. 图片容器（页面阶段放置占位） ---------- */
.figure {
  display: block;
  margin: 0;
  background: var(--clr-white);
  border: 1px solid var(--hair);
  overflow: hidden;
  clip-path: polygon(
    0 0,
    100% 0,
    100% calc(100% - 22px),
    calc(100% - 22px) 100%,
    0 100%
  );
}

.figure__media {
  position: relative;
  display: grid;
  place-items: center;
  aspect-ratio: 4 / 3;
  background-color: var(--clr-lake-soft);
  background-image:
    repeating-linear-gradient(115deg, rgba(7, 61, 94, 0.16) 0 1px, transparent 1px 14px),
    repeating-linear-gradient(25deg, rgba(74, 58, 107, 0.12) 0 1px, transparent 1px 23px);
}

.figure__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.figure--wide .figure__media { aspect-ratio: 16 / 9; }
.figure--square .figure__media { aspect-ratio: 1 / 1; }
.figure--tall .figure__media { aspect-ratio: 3 / 4; }
.figure--panel .figure__media { aspect-ratio: 4 / 3; }

.figure__placeholder {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--clr-lake-deep);
  opacity: 0.72;
}

.figure__cap {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  padding: 10px 14px;
  border-top: 1px solid var(--hair-soft);
  background: var(--clr-white);
  color: rgba(36, 31, 26, 0.72);
}

/* ---------- 11. 滚动进度条 ---------- */
.progress-bar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--clr-lake), var(--clr-gold));
  z-index: 120;
  pointer-events: none;
}

/* ---------- 12. 头部 ---------- */
.skip-link {
  position: absolute;
  left: 12px;
  top: -72px;
  z-index: 200;
  padding: 10px 18px;
  background: var(--clr-ink);
  color: var(--clr-cream);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  text-decoration: none;
  transition: top 0.18s var(--ease);
}

.skip-link:focus {
  top: 12px;
  color: var(--clr-cream);
}

.site-header {
  position: relative;
  background: var(--clr-cream);
}

.command-strip {
  background: var(--clr-lake-deep);
  color: var(--clr-white);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.08em;
}

.command-strip__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px 24px;
  flex-wrap: wrap;
  min-height: 42px;
  padding-top: 6px;
  padding-bottom: 6px;
}

.command-strip__status {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0;
}

.command-strip__dot {
  width: 8px;
  height: 8px;
  flex: none;
  background: var(--clr-gold);
  transform: rotate(45deg);
}

.command-strip__meta {
  margin: 0;
  color: var(--clr-lake-soft);
}

.masthead {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px 32px;
  flex-wrap: wrap;
  padding: 26px 0 22px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  text-decoration: none;
  color: inherit;
}

.brand__mark {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  flex: none;
  background: var(--clr-lake);
  color: var(--clr-white);
  font-family: var(--font-mono);
  font-size: 15px;
  letter-spacing: 0.06em;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 14px), calc(100% - 14px) 100%, 0 100%);
}

.brand__text { display: block; }

.brand__name {
  display: block;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(21px, 2vw, 27px);
  line-height: 1.12;
  letter-spacing: -0.01em;
}

.brand__sub {
  display: block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--clr-lake);
}

.masthead__tail {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
}

.cta-line { padding: 12px 20px; }

.nav-toggle {
  display: none;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  border: 1px solid var(--clr-lake);
  color: var(--clr-lake-deep);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.1em;
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 12px), calc(100% - 12px) 100%, 0 100%);
}

.nav-toggle__bars {
  position: relative;
  width: 18px;
  height: 10px;
  flex: none;
  border-top: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
}

.nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  top: 2px;
  width: 100%;
  height: 2px;
  background: currentColor;
}

.nav-toggle[aria-expanded="true"] {
  background: var(--clr-lake-deep);
  border-color: var(--clr-lake-deep);
  color: var(--clr-white);
}

.site-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--clr-lake);
  color: var(--clr-white);
  border-bottom: 3px solid var(--clr-gold);
}

.site-nav__list {
  display: flex;
  flex-wrap: wrap;
  align-items: stretch;
  margin: 0;
  padding: 0;
}

.site-nav__list > li { display: flex; }

.site-nav a {
  display: inline-flex;
  align-items: baseline;
  gap: 9px;
  padding: 14px 22px;
  border-right: 1px solid var(--hair-light);
  text-decoration: none;
  color: inherit;
  font-family: var(--font-body);
  font-size: 15px;
  letter-spacing: 0.02em;
  transition: background-color 0.18s var(--ease), color 0.18s var(--ease);
}

.site-nav__idx {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--clr-gold);
  transition: color 0.18s var(--ease);
}

.site-nav__label { display: inline-block; }

.site-nav a:hover,
.site-nav a:focus-visible {
  background: var(--clr-lake-deep);
  color: var(--clr-white);
}

.site-nav a[aria-current="page"] {
  background: var(--clr-gold);
  color: var(--clr-ink);
}

.site-nav a[aria-current="page"] .site-nav__idx {
  color: var(--clr-ink);
}

/* ---------- 13. 页脚 ---------- */
.site-footer {
  background: var(--clr-lake-deep);
  color: var(--clr-white);
  border-top: 8px solid var(--clr-lake);
}

.site-footer a { color: inherit; }

.footer-top {
  display: grid;
  grid-template-columns: 1.5fr repeat(3, minmax(0, 1fr));
  gap: clamp(26px, 4vw, 52px);
  padding: clamp(44px, 6vw, 72px) 0 clamp(28px, 4vw, 44px);
}

.footer-brand { min-width: 0; }

.brand--footer .brand__mark {
  background: var(--clr-gold);
  color: var(--clr-ink);
}

.brand--footer .brand__name { color: var(--clr-white); }

.brand--footer .brand__sub { color: var(--clr-lake-soft); }

.footer-brand__note {
  margin-top: 18px;
  max-width: 34ch;
  font-size: 15px;
  line-height: 1.8;
  color: var(--clr-lake-soft);
}

.footer-contact {
  display: grid;
  gap: 8px;
  margin-top: 22px;
}

.footer-contact li {
  display: grid;
  gap: 2px;
}

.footer-contact__key {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  color: var(--clr-gold);
}

.footer-contact__value {
  font-size: 15px;
  line-height: 1.7;
  color: var(--clr-white);
  word-break: break-word;
}

.footer-col__title {
  font-family: var(--font-mono);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.16em;
  color: var(--clr-gold);
  padding-bottom: 10px;
  margin-bottom: 16px;
  border-bottom: 1px solid var(--hair-light);
}

.footer-col__list {
  display: grid;
  gap: 10px;
}

.footer-col__list a {
  display: inline-block;
  font-size: 15px;
  line-height: 1.7;
  text-decoration: none;
  color: var(--clr-lake-soft);
  border-bottom: 1px solid transparent;
  transition: color 0.18s var(--ease), border-color 0.18s var(--ease);
}

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

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px 28px;
  flex-wrap: wrap;
  padding: 20px 0 38px;
  border-top: 1px solid var(--hair-light);
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: 0.06em;
  color: var(--clr-lake-soft);
}

.footer-bottom__legal { margin: 0; }

.footer-legal {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 22px;
}

.footer-legal a {
  text-decoration: none;
  border-bottom: 1px solid transparent;
}

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

/* ---------- 14. 显现（data-reveal） ---------- */
html.js [data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s var(--ease), transform 0.5s var(--ease);
}

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

/* ---------- 15. 响应式 ---------- */
@media (max-width: 1100px) {
  .footer-top { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-brand { grid-column: 1 / -1; }
}

@media (max-width: 900px) {
  .command-strip__meta { display: none; }

  .masthead { padding: 18px 0 16px; align-items: center; }

  .nav-toggle { display: inline-flex; }

  .site-nav {
    position: static;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s var(--ease);
  }

  .site-nav[data-open] {
    max-height: 70vh;
    overflow-y: auto;
  }

  .site-nav__list {
    display: grid;
    padding: 6px 0 14px;
  }

  .site-nav__list > li { display: block; }

  .site-nav a {
    width: 100%;
    padding: 15px 4px;
    border-right: 0;
    border-bottom: 1px solid var(--hair-light);
    font-size: 16px;
  }

  .site-nav__list > li:last-child a { border-bottom: 0; }
}

@media (max-width: 680px) {
  .footer-top { grid-template-columns: minmax(0, 1fr); }

  .footer-bottom { flex-direction: column; align-items: flex-start; }

  .cta-line { padding: 11px 16px; font-size: 13px; }
}

/* ---------- 16. 降低动效偏好 ---------- */
@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;
    scroll-behavior: auto !important;
  }

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

  .progress-bar { display: none; }
}