/* =========================================================
   /assets/site.css — 豪利777官网 共享样式
   深海蓝底 / 电光青路径 / 琥珀金入口 / 切角几何
   ========================================================= */

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

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

body, h1, h2, h3, h4, h5, h6, p, figure, blockquote, dl, dd, ol, ul { margin: 0; }
ul, ol { padding: 0; }
ul[class], ol[class] { list-style: none; }
img, svg, video { display: block; max-width: 100%; }
button { background: none; border: 0; padding: 0; color: inherit; font: inherit; }
a { color: inherit; text-decoration: none; }
table { border-collapse: collapse; }

/* ---------- 2. Tokens ---------- */
:root {
  --ink-deep: #0A1A2F;
  --ink-mid: #10263F;
  --cyan: #2FD8D8;
  --cyan-soft: rgba(47, 216, 216, 0.14);
  --amber: #F2A73B;
  --stone: #6B7683;
  --moss: #4E6B5A;
  --moss-soft: #8FB79C;
  --clay: #B56A4A;
  --cream: #F4F1EA;
  --night: #050D18;

  --text: #DCE6F0;
  --text-dim: #93A4B5;
  --line: rgba(47, 216, 216, 0.24);
  --line-soft: rgba(107, 118, 131, 0.34);

  --font-head: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans SC", system-ui, sans-serif;
  --font-body: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", "Noto Sans SC", system-ui, "Segoe UI", Roboto, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, "Liberation Mono", "Courier New", monospace;

  --container: 1220px;
  --gutter: clamp(18px, 4vw, 44px);
  --header-h: 74px;
  --cut: 16px;
}

/* ---------- 3. Base & 中文排版 ---------- */
body {
  min-height: 100vh;
  padding-top: var(--header-h);
  background: var(--ink-deep);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.7;
  letter-spacing: 0.01em;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-head);
  font-weight: 900;
  letter-spacing: -0.02em;
  line-height: 1.16;
  color: var(--cream);
}

::selection { background: var(--cyan); color: var(--night); }

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

body[data-nav-open] { overflow: hidden; }

/* ---------- 4. 容器 / 网格 ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.grid { display: grid; gap: clamp(16px, 2.2vw, 26px); }
.grid--2 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid--3 { grid-template-columns: repeat(auto-fit, minmax(238px, 1fr)); }
.grid--4 { grid-template-columns: repeat(auto-fit, minmax(196px, 1fr)); }

.divider {
  height: 1px;
  background: var(--line-soft);
  border: 0;
  margin-block: clamp(22px, 3vw, 40px);
}

/* ---------- 5. Skip link ---------- */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 400;
  padding: 13px 20px;
  background: var(--amber);
  color: var(--night);
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 14px;
  letter-spacing: 0.02em;
}
.skip-link:focus {
  left: 12px;
  top: 12px;
}

/* ---------- 6. Header ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 200;
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background-color 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.site-header[data-scrolled] {
  background: rgba(10, 26, 47, 0.97);
  border-bottom-color: var(--line);
  box-shadow: 0 14px 34px rgba(5, 13, 24, 0.5);
}

.site-header::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 2px;
  background: linear-gradient(90deg, var(--cyan), var(--amber));
  transform: scaleX(var(--scroll-progress, 0));
  transform-origin: left center;
  opacity: 0;
  transition: opacity 0.3s ease;
  pointer-events: none;
}

.site-header[data-scrolled]::after { opacity: 1; }

.site-header__inner {
  display: flex;
  align-items: center;
  gap: clamp(10px, 2vw, 28px);
  min-height: var(--header-h);
}

/* 品牌 */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
  color: var(--cream);
}

.brand__mark {
  width: 22px;
  height: 22px;
  flex: 0 0 auto;
  background: linear-gradient(135deg, var(--cyan), var(--amber));
  clip-path: polygon(0 0, 100% 0, 100% 68%, 68% 100%, 0 100%);
}

.brand__text {
  display: flex;
  flex-direction: column;
  line-height: 1.14;
}

.brand__name {
  font-family: var(--font-head);
  font-weight: 900;
  font-size: 16px;
  letter-spacing: -0.01em;
  color: var(--cream);
}

.brand__line {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  color: var(--cyan);
}

/* 主导航 */
.nav {
  flex: 1 1 auto;
  display: flex;
  justify-content: center;
}

.nav__list {
  display: flex;
  align-items: center;
  gap: 2px;
}

.nav__link {
  position: relative;
  display: block;
  padding: 10px 13px;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.02em;
  white-space: nowrap;
  color: var(--text-dim);
  transition: color 0.2s ease;
}

.nav__link::after {
  content: "";
  position: absolute;
  left: 13px;
  right: 13px;
  bottom: 5px;
  height: 2px;
  background: var(--cyan);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.24s cubic-bezier(0.2, 0.7, 0.3, 1);
}

.nav__link:hover { color: var(--cream); }
.nav__link:hover::after { transform: scaleX(1); }

.nav__link[aria-current="page"] { color: var(--cyan); }
.nav__link[aria-current="page"]::after {
  transform: scaleX(1);
  background: var(--amber);
}

.nav__aside { display: none; }

/* 右区 */
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 0 0 auto;
  margin-left: auto;
}

.status-strip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--stone);
}

.status-strip__dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--moss-soft);
  box-shadow: 0 0 0 4px rgba(78, 107, 90, 0.24);
}

/* 移动开关 */
.nav__toggle {
  display: none;
  align-items: center;
  gap: 9px;
  padding: 9px 13px;
  background: rgba(16, 38, 63, 0.86);
  border: 1px solid var(--line-soft);
  color: var(--cream);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.04em;
  cursor: pointer;
  clip-path: polygon(0 0, calc(100% - 9px) 0, 100% 9px, 100% 100%, 9px 100%, 0 calc(100% - 9px));
  transition: border-color 0.2s ease, color 0.2s ease;
}

.nav__toggle:hover { border-color: var(--cyan); color: var(--cyan); }

.nav__toggle-bars {
  position: relative;
  display: block;
  width: 16px;
  height: 2px;
  background: var(--cyan);
  transition: background-color 0.2s ease;
}

.nav__toggle-bars::before,
.nav__toggle-bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 16px;
  height: 2px;
  background: var(--cyan);
  transition: transform 0.24s cubic-bezier(0.2, 0.7, 0.3, 1);
}

.nav__toggle-bars::before { top: -5px; }
.nav__toggle-bars::after { top: 5px; }

.nav__toggle[aria-expanded="true"] .nav__toggle-bars { background: transparent; }
.nav__toggle[aria-expanded="true"] .nav__toggle-bars::before { transform: translateY(5px) rotate(45deg); }
.nav__toggle[aria-expanded="true"] .nav__toggle-bars::after { transform: translateY(-5px) rotate(-45deg); }

.nav__toggle-label { line-height: 1; }

/* ---------- 7. Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 19px;
  font-family: var(--font-head);
  font-size: 14px;
  font-weight: 900;
  letter-spacing: 0.02em;
  line-height: 1.2;
  white-space: nowrap;
  border: 1px solid transparent;
  cursor: pointer;
  clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 10px 100%, 0 calc(100% - 10px));
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.btn:active { transform: translateY(1px); }

.btn--amber {
  background: var(--amber);
  color: var(--night);
}
.btn--amber:hover { background: #FFB855; }

.btn--cyan {
  background: transparent;
  color: var(--cyan);
  border-color: rgba(47, 216, 216, 0.55);
}
.btn--cyan:hover {
  background: var(--cyan-soft);
  border-color: var(--cyan);
}

.btn--ghost {
  background: transparent;
  color: var(--cream);
  border-color: var(--line-soft);
}
.btn--ghost:hover {
  color: var(--cyan);
  border-color: var(--cyan);
}

/* ---------- 8. 面包屑 ---------- */
.breadcrumb {
  padding-block: 15px;
  border-bottom: 1px solid var(--line-soft);
}

.breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
}

.breadcrumb__item {
  display: inline-flex;
  align-items: center;
  color: var(--stone);
}

.breadcrumb__item + .breadcrumb__item::before {
  content: "/";
  margin-right: 8px;
  color: var(--line-soft);
}

.breadcrumb__link {
  color: var(--text-dim);
  transition: color 0.18s ease;
}
.breadcrumb__link:hover { color: var(--cyan); }

.breadcrumb__item[aria-current="page"] { color: var(--cyan); }

/* ---------- 9. 正文 ---------- */
.prose {
  max-width: 68ch;
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
}

.prose p { margin-bottom: 1.1em; }
.prose p:last-child { margin-bottom: 0; }

.prose h2 {
  font-size: 28px;
  margin: 1.7em 0 0.6em;
}
.prose h3 {
  font-size: 20px;
  margin: 1.5em 0 0.5em;
  color: var(--cyan);
}

.prose ul,
.prose ol {
  margin: 0 0 1.1em;
  padding-left: 1.25em;
}
.prose ul { list-style: none; padding-left: 0; }
.prose ul li {
  position: relative;
  padding-left: 18px;
  margin: 0.45em 0;
}
.prose ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.72em;
  width: 8px;
  height: 2px;
  background: var(--cyan);
}

.prose a {
  color: var(--cyan);
  text-decoration: underline;
  text-underline-offset: 3px;
}

/* ---------- 10. 通用组件 ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan);
}
.eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--cyan);
}

.numeric {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--stone);
  font-variant-numeric: tabular-nums;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 9px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  line-height: 1.6;
  color: var(--stone);
  border: 1px solid currentColor;
}

.tag--cyan { color: var(--cyan); }
.tag--moss { color: var(--moss-soft); }
.tag--clay { color: var(--clay); }
.tag--amber { color: var(--amber); }

.panel {
  position: relative;
  background: var(--ink-mid);
  border: 1px solid var(--line-soft);
  padding: clamp(18px, 2.4vw, 28px);
}

.panel--cut {
  clip-path: polygon(
    0 0,
    calc(100% - var(--cut)) 0,
    100% var(--cut),
    100% 100%,
    var(--cut) 100%,
    0 calc(100% - var(--cut))
  );
}

.section-band {
  position: relative;
  padding-block: clamp(30px, 5vw, 58px);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

/* ---------- 11. 图片容器 ---------- */
.media-frame {
  position: relative;
  display: block;
  width: 100%;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  background: linear-gradient(140deg, var(--ink-mid), var(--night));
  border: 1px solid var(--line-soft);
  clip-path: polygon(0 0, calc(100% - var(--cut)) 0, 100% var(--cut), 100% 100%, 0 100%);
}

.media-frame--wide { aspect-ratio: 21 / 9; }
.media-frame--tall { aspect-ratio: 3 / 4; }
.media-frame--square { aspect-ratio: 1 / 1; }

.media-frame__inner {
  position: absolute;
  inset: 0;
}

.media-frame__inner img,
.media-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.media-frame__caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 12px 16px;
  background: linear-gradient(0deg, rgba(5, 13, 24, 0.9), rgba(5, 13, 24, 0));
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--cream);
}

/* ---------- 12. 入场显现 ---------- */
.reveal {
  opacity: 1;
  transform: none;
}

html[data-motion="on"] .reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.5s ease, transform 0.5s cubic-bezier(0.2, 0.7, 0.3, 1);
}

html[data-motion="on"] .reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* ---------- 13. Footer ---------- */
.site-footer {
  position: relative;
  margin-top: clamp(48px, 8vw, 96px);
  background: var(--night);
  color: var(--text);
}

.footer__rail {
  height: 3px;
  background: linear-gradient(90deg, var(--cyan) 0%, rgba(47, 216, 216, 0) 45%, var(--amber) 100%);
}

.footer__grid {
  display: grid;
  grid-template-columns: 1.45fr 1fr 1fr 1fr;
  gap: clamp(24px, 4vw, 52px);
  padding-block: clamp(38px, 6vw, 68px);
}

.footer__brand .brand__mark {
  width: 26px;
  height: 26px;
}

.footer__brand-name {
  margin-top: 14px;
  font-family: var(--font-head);
  font-size: 20px;
  font-weight: 900;
  letter-spacing: -0.01em;
  color: var(--cream);
}

.footer__brand-desc {
  margin-top: 10px;
  margin-bottom: 20px;
  max-width: 36ch;
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-dim);
}

.footer__title {
  margin-bottom: 15px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan);
}

.footer__list {
  display: grid;
  gap: 11px;
}

.footer__link {
  font-size: 14px;
  color: var(--text-dim);
  transition: color 0.18s ease;
}
.footer__link:hover { color: var(--cyan); }

.footer__contact-bar {
  padding-block: clamp(20px, 3vw, 28px);
  border-top: 1px solid var(--line-soft);
}

.footer__contact {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 14px 28px;
  font-size: 13px;
  line-height: 1.7;
  color: var(--text-dim);
}

.footer__label {
  display: block;
  margin-bottom: 2px;
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  color: var(--moss-soft);
}

.footer__contact-note {
  margin-top: 16px;
  max-width: 78ch;
  font-size: 12px;
  line-height: 1.75;
  color: var(--stone);
}

.footer__bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 26px;
  padding-block: 18px 26px;
  border-top: 1px solid var(--line-soft);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.03em;
  color: var(--stone);
}

.footer__legal,
.footer__meta { font-size: 12px; }

/* ---------- 14. 响应式 ---------- */
@media (max-width: 1180px) {
  .status-strip { display: none; }
}

@media (max-width: 1080px) {
  .nav__link {
    padding: 10px 9px;
    font-size: 13px;
  }
  .nav__link::after { left: 9px; right: 9px; }
}

@media (max-width: 1023px) {
  .header-cta { display: none; }
}

@media (max-width: 900px) {
  :root { --header-h: 64px; }

  .nav__toggle { display: inline-flex; }

  .nav {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    top: auto;
    z-index: 210;
    display: block;
    justify-content: flex-start;
    padding: 22px var(--gutter) calc(22px + env(safe-area-inset-bottom, 0px));
    background: var(--ink-mid);
    border-top: 1px solid var(--line);
    box-shadow: 0 -20px 48px rgba(5, 13, 24, 0.66);
    clip-path: polygon(0 22px, 22px 0, 100% 0, 100% 100%, 0 100%);
    opacity: 0;
    transform: translateY(105%);
    pointer-events: none;
    transition: transform 0.3s cubic-bezier(0.2, 0.7, 0.3, 1), opacity 0.22s ease;
  }

  .nav[data-open] {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }

  .nav__list {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 9px;
  }

  .nav__link {
    padding: 14px 13px;
    font-size: 15px;
    color: var(--text);
    background: rgba(10, 26, 47, 0.66);
    border: 1px solid var(--line-soft);
    clip-path: polygon(0 0, calc(100% - 10px) 0, 100% 10px, 100% 100%, 0 100%);
  }

  .nav__link::after { display: none; }

  .nav__link[aria-current="page"] {
    color: var(--cyan);
    border-color: var(--amber);
    background: rgba(47, 216, 216, 0.08);
  }

  .nav__aside {
    display: grid;
    gap: 10px;
    margin-top: 16px;
    padding-top: 16px;
    border-top: 1px solid var(--line-soft);
  }

  .nav__aside .btn { width: 100%; }

  .nav__aside-note {
    margin: 0;
    text-align: center;
    font-family: var(--font-mono);
    font-size: 11px;
    letter-spacing: 0.08em;
    color: var(--stone);
  }

  .footer__grid { grid-template-columns: 1fr 1fr; }
  .footer__brand { grid-column: 1 / -1; }
}

@media (max-width: 560px) {
  .brand__line { font-size: 9px; letter-spacing: 0.12em; }
  .footer__grid { grid-template-columns: 1fr; }
  .footer__brand { grid-column: auto; }
  .footer__bottom { flex-direction: column; align-items: flex-start; }
  .media-frame { clip-path: none; }
}

/* ---------- 15. 减动效 ---------- */
@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;
  }

  html[data-motion="on"] .reveal {
    opacity: 1;
    transform: none;
  }
}