/* ==========================================================================
   新利赛事 · Site Kit /assets/site.css
   共享外壳：reset、变量、中文排版、头部、页脚、通用组件
   ========================================================================== */

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  background: #07110D;
}

body { margin: 0; }

h1, h2, h3, h4, h5, p, figure, blockquote { margin: 0; }

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

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

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

a { color: inherit; }

table { border-collapse: collapse; width: 100%; }

/* ---------- 2. Variables ---------- */
:root {
  /* 色彩 */
  --ink-900: #07110D;
  --ink-800: #0D1A14;
  --ink-700: #123527;
  --paper: #F4F1E8;
  --mist: #9BB3A6;
  --signal: #FF6A2A;
  --signal-soft: #FF8A55;
  --cyan: #5FF2D2;
  --amber: #FFD166;
  --red: #C53B2E;
  --index: #3A4A42;

  /* 尺寸 */
  --wrap: 1180px;
  --pad: clamp(18px, 4vw, 40px);
  --radius-lg: clamp(18px, 2.4vw, 28px);
  --radius-md: 14px;
  --radius-sm: 8px;

  /* 字体 */
  --font-display: "Archivo Narrow", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", system-ui, sans-serif;
  --font-body: "Noto Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  --font-serif: "Noto Serif SC", "Songti SC", "SimSun", Georgia, serif;

  /* 动效 */
  --ease: cubic-bezier(.22, .61, .36, 1);
  --dur: 160ms;
}

/* ---------- 3. Base / 中文排版 ---------- */
body {
  min-height: 100vh;
  font-family: var(--font-body);
  font-size: clamp(15px, .55vw + 13.6px, 17px);
  line-height: 1.75;
  font-weight: 400;
  color: var(--paper);
  background-color: var(--ink-900);
  background-image:
    radial-gradient(900px 520px at 88% -10%, rgba(18, 53, 39, .78), transparent 70%),
    radial-gradient(680px 420px at 4% 2%, rgba(95, 242, 210, .05), transparent 66%);
  background-repeat: no-repeat;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

p { max-width: 68ch; }

strong, b { font-weight: 700; }

::selection {
  background: rgba(255, 106, 42, .85);
  color: #07110D;
}

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

#main-content { scroll-margin-top: 128px; }

/* ---------- 4. 原子工具类 ---------- */
.wrap {
  width: 100%;
  max-width: calc(var(--wrap) + 2 * var(--pad));
  margin-inline: auto;
  padding-inline: var(--pad);
}

.page-main {
  display: block;
  padding-block: clamp(26px, 4vw, 54px) 0;
}

.mono {
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .04em;
}

.t-display {
  font-family: var(--font-display);
  font-weight: 900;
  line-height: .96;
  letter-spacing: -.02em;
}

.t-serif {
  font-family: var(--font-serif);
  font-weight: 600;
  line-height: 1.35;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--mist);
}

.eyebrow::before {
  content: "";
  width: 22px;
  height: 1px;
  background: var(--signal);
}

.sec-title {
  font-family: var(--font-display);
  font-weight: 900;
  font-size: clamp(26px, 3.4vw, 44px);
  line-height: 1.02;
  letter-spacing: -.02em;
  color: var(--paper);
  text-wrap: balance;
}

.lede {
  font-size: clamp(16px, 1.4vw, 20px);
  line-height: 1.7;
  color: var(--mist);
  max-width: 46em;
}

.prose { max-width: 42em; }
.prose p + p { margin-top: 1.1em; }
.prose h2 { margin-top: 1.8em; }
.prose h3 { margin-top: 1.5em; }
.prose a { color: var(--cyan); text-decoration-color: rgba(95, 242, 210, .45); text-underline-offset: 3px; }

.rule {
  height: 1px;
  border: 0;
  margin: 0;
  background: linear-gradient(90deg, rgba(58, 74, 66, .9), rgba(58, 74, 66, .1));
}

.section { padding-block: clamp(44px, 6.5vw, 92px); }
.section + .section { border-top: 1px solid rgba(58, 74, 66, .45); }

.grid { display: grid; gap: clamp(18px, 2.4vw, 32px); }
.grid--2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid--3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.grid--split { grid-template-columns: minmax(0, .85fr) minmax(0, 1.65fr); }

/* ---------- 5. Skip link ---------- */
.skip-link {
  position: fixed;
  top: 10px;
  left: 50%;
  z-index: 300;
  translate: -50% -180%;
  padding: 12px 22px;
  border-radius: 999px;
  background: var(--signal);
  color: #07110D;
  font-weight: 700;
  font-size: 14px;
  text-decoration: none;
  box-shadow: 0 12px 30px rgba(0, 0, 0, .5);
  transition: translate var(--dur) var(--ease);
}

.skip-link:focus-visible {
  translate: -50% 0;
  outline-offset: 4px;
}

/* ---------- 6. Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .5em;
  padding: 12px 20px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: .01em;
  text-decoration: none;
  cursor: pointer;
  transition: background-color var(--dur) var(--ease),
              color var(--dur) var(--ease),
              border-color var(--dur) var(--ease),
              transform var(--dur) var(--ease);
}

.btn--signal {
  background: var(--signal);
  color: #07110D;
}
.btn--signal:hover { background: var(--signal-soft); }

.btn--ghost {
  background: transparent;
  border-color: rgba(58, 74, 66, 1);
  color: var(--paper);
}
.btn--ghost:hover {
  border-color: var(--cyan);
  color: var(--cyan);
}

.btn--sm {
  padding: 9px 15px;
  font-size: 13px;
}

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

/* ---------- 7. 标签 / 角标 ---------- */
.ver-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 9px;
  border: 1px solid rgba(95, 242, 210, .38);
  border-radius: 6px;
  background: rgba(95, 242, 210, .1);
  color: var(--cyan);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: .08em;
  line-height: 1;
  white-space: nowrap;
}

.ver-tag::before {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 1px;
  background: var(--cyan);
  box-shadow: 0 0 8px rgba(95, 242, 210, .9);
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 11px;
  border: 1px solid rgba(58, 74, 66, .9);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .03em;
  line-height: 1.6;
  color: var(--mist);
  background: rgba(13, 26, 20, .8);
}

.pill--cyan { color: var(--cyan); border-color: rgba(95, 242, 210, .45); background: rgba(95, 242, 210, .09); }
.pill--amber { color: var(--amber); border-color: rgba(255, 209, 102, .45); background: rgba(255, 209, 102, .09); }
.pill--red { color: #FF7A6B; border-color: rgba(197, 59, 46, .6); background: rgba(197, 59, 46, .16); }

/* ---------- 8. Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 120;
  background: rgba(7, 17, 13, .94);
  border-bottom: 1px solid rgba(58, 74, 66, .55);
  -webkit-backdrop-filter: blur(14px) saturate(120%);
  backdrop-filter: blur(14px) saturate(120%);
}

.site-header__util {
  border-bottom: 1px solid rgba(58, 74, 66, .4);
}

.site-header__util-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding-block: 12px;
  transition: padding-block var(--dur) var(--ease);
}

.site-header[data-compact] .site-header__util-inner { padding-block: 8px; }

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: none;
  color: var(--paper);
  text-decoration: none;
}

.brand__badge {
  position: relative;
  width: 38px;
  height: 38px;
  flex: none;
  border-radius: 50%;
  border: 1px solid rgba(95, 242, 210, .45);
  background:
    radial-gradient(circle at 32% 28%, rgba(95, 242, 210, .3), transparent 62%),
    linear-gradient(160deg, var(--ink-700), #08150F);
  box-shadow: inset 0 0 0 3px rgba(7, 17, 13, .75);
}

.brand__badge::before {
  content: "";
  position: absolute;
  inset: 10px;
  border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 12px rgba(255, 106, 42, .55);
}

.brand__text { display: block; }

.brand__name {
  display: block;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: .01em;
  color: var(--paper);
}

.brand__tagline {
  display: block;
  margin-top: 2px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .09em;
  line-height: 1.4;
  color: var(--mist);
  transition: opacity var(--dur) var(--ease);
}

.site-header[data-compact] .brand__tagline { opacity: .35; }

.site-header__meta {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  flex-wrap: wrap;
  gap: 14px;
}

.meta-link {
  padding: 6px 2px;
  border-bottom: 1px solid transparent;
  color: var(--mist);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .02em;
  text-decoration: none;
  transition: color var(--dur) var(--ease), border-color var(--dur) var(--ease);
}

.meta-link:hover {
  color: var(--paper);
  border-bottom-color: var(--signal);
}

/* ---------- 9. Navigation ---------- */
.site-nav { position: relative; }

.site-nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.nav-toggle {
  display: none;
  align-items: center;
  gap: 10px;
  padding: 9px 14px;
  border: 1px solid rgba(58, 74, 66, .9);
  border-radius: 999px;
  color: var(--paper);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: .04em;
  cursor: pointer;
  transition: border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

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

.nav-toggle__bars {
  position: relative;
  display: block;
  width: 16px;
  height: 2px;
  background: var(--paper);
  transition: background-color var(--dur) var(--ease);
}

.nav-toggle__bars::before,
.nav-toggle__bars::after {
  content: "";
  position: absolute;
  left: 0;
  width: 16px;
  height: 2px;
  background: var(--paper);
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease);
}

.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__text {
  font-size: 13px;
  letter-spacing: .06em;
  white-space: nowrap;
}

.nav-index {
  display: flex;
  align-items: stretch;
  flex-wrap: wrap;
  gap: 2px;
}

.nav-index__item { display: flex; }

.nav-index__link {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 16px;
  border-bottom: 2px solid transparent;
  color: var(--mist);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .03em;
  text-decoration: none;
  transition: color var(--dur) var(--ease),
              background-color var(--dur) var(--ease),
              border-color var(--dur) var(--ease);
}

.nav-index__link:hover {
  color: var(--paper);
  background: rgba(18, 53, 39, .6);
}

.nav-index__link[aria-current="page"] {
  color: var(--paper);
  border-bottom-color: var(--signal);
}

.nav-index__link[aria-current="page"]::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 10px rgba(95, 242, 210, .9);
}

.scroll-progress {
  position: absolute;
  left: 0;
  bottom: -1px;
  width: 100%;
  height: 2px;
  transform: scaleX(0);
  transform-origin: 0 50%;
  background: linear-gradient(90deg, var(--signal), var(--cyan));
  opacity: .9;
  will-change: transform;
}

/* ---------- 10. Footer ---------- */
.site-footer {
  position: relative;
  overflow: hidden;
  margin-top: clamp(56px, 8vw, 104px);
  padding-block: clamp(44px, 6vw, 72px) 24px;
  border-top: 1px solid rgba(58, 74, 66, .6);
  background: var(--ink-800);
}

.site-footer::before {
  content: "";
  position: absolute;
  inset: auto -12% -58% -12%;
  height: 300px;
  pointer-events: none;
  background: radial-gradient(60% 100% at 50% 0%, rgba(18, 53, 39, .95), transparent 72%);
}

.footer-grid {
  position: relative;
  display: grid;
  grid-template-columns: 1.5fr .9fr .8fr 1.55fr;
  gap: clamp(24px, 3vw, 46px);
}

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

.footer-col--brand { max-width: 30em; }

.footer-brand {
  font-family: var(--font-display);
  font-size: clamp(22px, 2.4vw, 28px);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -.01em;
  color: var(--paper);
}

.footer-domain {
  margin-top: 8px;
  font-family: var(--font-mono);
  font-size: 12.5px;
  letter-spacing: .05em;
  color: var(--cyan);
  word-break: break-all;
}

.footer-pitch {
  margin-top: 14px;
  max-width: 26em;
  font-size: 14px;
  line-height: 1.75;
  color: var(--mist);
}

.footer-version {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 18px;
}

.footer-version__note {
  font-size: 12px;
  letter-spacing: .04em;
  color: var(--mist);
}

.footer-title {
  margin-bottom: 16px;
  font-family: var(--font-mono);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--mist);
}

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

.footer-link {
  color: var(--paper);
  font-size: 14.5px;
  text-decoration: none;
  opacity: .82;
  transition: color var(--dur) var(--ease), opacity var(--dur) var(--ease);
}

.footer-link:hover {
  opacity: 1;
  color: var(--cyan);
}

.footer-col--contact {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.footer-contact__k {
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--mist);
}

.footer-contact__v {
  font-size: 14px;
  line-height: 1.6;
  color: var(--paper);
  word-break: break-word;
}

.footer-contact__v--mono {
  font-family: var(--font-mono);
  font-size: 13.5px;
  letter-spacing: .03em;
  color: var(--cyan);
}

.footer-note {
  max-width: 30em;
  padding-left: 11px;
  border-left: 2px solid rgba(255, 209, 102, .7);
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--mist);
}

.footer-base {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px 24px;
  margin-top: clamp(32px, 4vw, 52px);
  padding-top: 20px;
  border-top: 1px solid rgba(58, 74, 66, .5);
  font-size: 12.5px;
  color: var(--mist);
}

.footer-base__copy { margin: 0; }

.footer-base__icp {
  margin: 0;
  font-family: var(--font-mono);
  letter-spacing: .05em;
  color: var(--mist);
}

/* ---------- 11. 面包屑 ---------- */
.crumbs {
  margin-bottom: clamp(18px, 2.4vw, 30px);
  font-size: 13px;
  color: var(--mist);
}

.crumbs ol {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
}

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

.crumbs li + li::before {
  content: "/";
  color: var(--index);
}

.crumbs a {
  color: var(--mist);
  text-decoration: none;
  transition: color var(--dur) var(--ease);
}

.crumbs a:hover { color: var(--cyan); }

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

/* ---------- 12. 图片基础容器 ---------- */
.plate {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  border: 1px solid rgba(58, 74, 66, .7);
  border-radius: var(--radius-lg);
  background:
    repeating-linear-gradient(90deg, rgba(95, 242, 210, .06) 0 1px, transparent 1px 64px),
    repeating-linear-gradient(0deg, rgba(95, 242, 210, .06) 0 1px, transparent 1px 64px),
    radial-gradient(120% 90% at 20% 0%, rgba(18, 53, 39, .95), var(--ink-800) 72%);
}

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

.plate::after {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(180deg, rgba(7, 17, 13, 0) 55%, rgba(7, 17, 13, .55));
}

.plate__caption {
  position: absolute;
  left: clamp(14px, 2vw, 22px);
  bottom: clamp(14px, 2vw, 22px);
  z-index: 2;
  max-width: 32ch;
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .08em;
  color: var(--paper);
}

.plate--wide { aspect-ratio: 16 / 9; }
.plate--tall { aspect-ratio: 3 / 4; }
.plate--square { aspect-ratio: 1 / 1; }
.plate--board { aspect-ratio: 21 / 9; }

/* ---------- 13. 胶囊标签组（页面阶段配合 data-tabs） ---------- */
.tab-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: clamp(18px, 2.4vw, 28px);
}

.tab {
  padding: 9px 18px;
  border: 1px solid rgba(58, 74, 66, .9);
  border-radius: 999px;
  background: transparent;
  color: var(--mist);
  font-size: 13.5px;
  font-weight: 700;
  letter-spacing: .02em;
  cursor: pointer;
  transition: color var(--dur) var(--ease),
              border-color var(--dur) var(--ease),
              background-color var(--dur) var(--ease);
}

.tab:hover {
  color: var(--paper);
  border-color: rgba(95, 242, 210, .5);
}

.tab[aria-selected="true"] {
  background: var(--signal);
  border-color: var(--signal);
  color: #07110D;
}

[data-panel][hidden] { display: none; }

/* ---------- 14. 响应式 ---------- */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .footer-col--brand { max-width: none; }
}

@media (max-width: 900px) {
  .grid--2,
  .grid--3,
  .grid--split { grid-template-columns: 1fr; }

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

  .site-nav__inner {
    flex-wrap: wrap;
    padding-block: 8px;
  }

  .nav-index {
    display: none;
    flex-direction: column;
    gap: 2px;
    width: 100%;
    margin-top: 8px;
    padding: 8px 0 12px;
    border-top: 1px solid rgba(58, 74, 66, .5);
  }

  .site-nav[data-open] .nav-index { display: flex; }

  .nav-index__item { display: block; }

  .nav-index__link {
    width: 100%;
    padding: 12px 14px;
    border-bottom: 0;
    border-left: 2px solid transparent;
    border-radius: var(--radius-sm);
    font-size: 15px;
  }

  .nav-index__link[aria-current="page"] {
    border-left-color: var(--signal);
    border-bottom-color: transparent;
    background: rgba(255, 106, 42, .09);
  }

  .brand__tagline { display: none; }

  .site-header__meta .meta-link { display: none; }
}

@media (max-width: 640px) {
  .footer-grid { grid-template-columns: 1fr; }
  .footer-base { flex-direction: column; align-items: flex-start; }
  .plate--board { aspect-ratio: 16 / 9; }
}

@media (max-width: 520px) {
  .site-header__util-inner { padding-block: 10px; gap: 12px; }
  .brand { gap: 9px; }
  .brand__badge { width: 32px; height: 32px; }
  .brand__badge::before { inset: 8px; }
  .brand__name { font-size: 16px; }
  .site-header__meta { gap: 8px; }
  .ver-tag { font-size: 11px; padding: 5px 7px; }
  .btn--sm { padding: 8px 13px; font-size: 12.5px; }
}

@media (max-width: 420px) {
  .site-header .ver-tag { display: none; }
}

/* ---------- 15. 动效偏好 ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }

  *,
  *::before,
  *::after {
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .001ms !important;
    scroll-behavior: auto !important;
  }

  .skip-link { transition: none; }
}