:root {
  --green: #1B7A34;
  --green-deep: #0B3B1A;
  --green-pale: #EFF8F1;
  --orange: #FF5A1F;
  --orange-pale: #FFD9C7;
  --ink: #1F2A44;
  --slate: #4A5A6A;
  --sand: #D9C9A3;
  --paper: #FCFAF2;
  --radius: 0;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  --font-head: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
  --font-mono: ui-monospace, "SFMono-Regular", "Cascadia Code", "Roboto Mono", Menlo, Consolas, "Liberation Mono", monospace;
  --site-width: 1280px;
  --shadow: 0 16px 40px rgba(11, 59, 26, 0.14);
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background-color: var(--paper);
  background-image:
    linear-gradient(to right, rgba(27, 122, 52, 0.035) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(27, 122, 52, 0.035) 1px, transparent 1px);
  background-size: 44px 44px;
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
}

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

h1, h2, h3, h4, h5, h6 {
  margin: 0 0 0.5em;
  color: var(--ink);
  font-family: var(--font-head);
  font-style: italic;
  font-weight: 800;
  line-height: 1.15;
}

p { margin: 0 0 1em; }

a { color: var(--green); text-decoration-thickness: 0.08em; text-underline-offset: 3px; }

ul, ol { margin: 0; padding-left: 1.2em; }

button { font: inherit; }

::selection { background: var(--orange); color: #fff; }

a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--orange);
  outline-offset: 3px;
}

.container {
  width: min(100% - 32px, var(--site-width));
  margin-inline: auto;
}

@media (min-width: 768px) {
  .container { width: min(100% - 48px, var(--site-width)); }
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: fixed;
  top: 8px;
  left: 8px;
  z-index: 2000;
  transform: translateY(-400%);
  background: var(--orange);
  color: #fff;
  padding: 10px 16px;
  font-weight: 700;
  text-decoration: none;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25);
}

.skip-link:focus { transform: translateY(0); }

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 4px;
  width: 0;
  background: linear-gradient(90deg, var(--green) 0%, var(--orange) 100%);
  z-index: 1001;
  box-shadow: 0 0 8px rgba(255, 90, 31, 0.35);
}

.site-header {
  position: relative;
  z-index: 200;
  background: var(--paper);
}

.top-bar {
  background: var(--green-deep);
  color: var(--green-pale);
  border-bottom: 2px solid var(--green);
}

.top-bar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-block: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.top-bar__text { margin: 0; }
.top-bar__text::before { content: "TIP / "; color: var(--orange); font-weight: 700; }
.top-bar__meta { margin: 0; color: var(--sand); }

.site-header__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-block: 16px;
}

.site-header__row--brand { padding-block: 18px; }
.site-header__row--nav { padding-block: 0; justify-content: flex-start; }

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

.brand:hover .brand__mark { transform: rotate(-3deg); }

.brand__mark {
  display: grid;
  place-items: center;
  flex: none;
  width: 52px;
  height: 52px;
  background: var(--green);
  color: var(--paper);
  border: 2px solid var(--green-deep);
  box-shadow: 4px 4px 0 var(--orange);
  font-family: var(--font-mono);
  font-style: normal;
  font-weight: 700;
  font-size: 18px;
  letter-spacing: 0.04em;
  transition: transform 0.2s;
}

.brand__lockup { display: grid; gap: 4px; }

.brand__name {
  font-family: var(--font-head);
  font-style: italic;
  font-weight: 800;
  font-size: 26px;
  line-height: 1;
  color: var(--green-deep);
  letter-spacing: 0.02em;
}

.brand__slogan {
  font-family: var(--font-mono);
  font-style: normal;
  font-size: 12px;
  color: var(--slate);
  letter-spacing: 0.16em;
  border-left: 3px solid var(--orange);
  padding-left: 8px;
  line-height: 1.2;
}

.site-header__nav-band {
  position: relative;
  background: linear-gradient(135deg, var(--green-deep) 0%, var(--green) 55%, var(--green-deep) 130%);
  border-top: 1px solid var(--sand);
  border-bottom: 4px solid var(--orange);
  overflow: hidden;
}

.site-header__nav-band::before {
  content: "";
  position: absolute;
  top: 0;
  left: 5%;
  width: 110px;
  height: 100%;
  background: var(--orange);
  opacity: 0.16;
  transform: skewX(-18deg);
  pointer-events: none;
}

.site-header__nav-band::after {
  content: "";
  position: absolute;
  top: 0;
  left: calc(5% + 150px);
  width: 18px;
  height: 100%;
  background: var(--sand);
  opacity: 0.25;
  transform: skewX(-18deg);
  pointer-events: none;
}

.site-header__row--nav { position: relative; z-index: 1; }

.site-header__coord {
  display: none;
  align-items: center;
  gap: 10px;
  margin: 0 0 0 auto;
  color: var(--green-pale);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  border-left: 1px solid rgba(252, 250, 242, 0.28);
  padding-left: 20px;
}

.site-header__coord-label { color: var(--orange); font-weight: 700; text-transform: uppercase; }

@media (min-width: 1120px) {
  .site-header__coord { display: flex; }
}

.site-nav { flex: 1; min-width: 0; }

.nav-list {
  display: flex;
  flex-wrap: wrap;
  margin: 0;
  padding: 0;
  list-style: none;
}

.nav-list__item { display: block; }

.nav-link {
  position: relative;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 15px 14px;
  color: var(--green-pale);
  text-decoration: none;
  font-family: var(--font-head);
  font-style: italic;
  font-weight: 700;
  font-size: 17px;
  line-height: 1.2;
  white-space: nowrap;
  transition: color 0.2s, background 0.2s;
}

.nav-list__index {
  font-family: var(--font-mono);
  font-style: normal;
  font-size: 12px;
  color: var(--orange);
  font-weight: 700;
  letter-spacing: 0.05em;
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 9px;
  height: 2px;
  background: var(--orange);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.2s;
  pointer-events: none;
}

.nav-link:hover,
.nav-link:focus-visible {
  color: #fff;
  background: rgba(252, 250, 242, 0.06);
}

.nav-link:hover::after,
.nav-link:focus-visible::after,
.nav-link[aria-current="page"]::after { transform: scaleX(1); }

.nav-link[aria-current="page"] { color: #fff; }
.nav-link[aria-current="page"] .nav-list__index { color: var(--orange); }

.nav-toggle {
  display: none;
  align-items: center;
  gap: 10px;
  min-height: 44px;
  padding: 8px 14px;
  background: var(--green-deep);
  color: var(--green-pale);
  border: 2px solid var(--green);
  cursor: pointer;
  font-family: var(--font-head);
  font-style: italic;
  font-weight: 700;
  font-size: 15px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.nav-toggle__bars { display: grid; gap: 5px; width: 20px; }
.nav-toggle__bar { display: block; height: 2px; background: currentColor; transition: transform 0.2s, opacity 0.2s; }
.nav-toggle__label::after { content: "菜单"; }
.nav-toggle[aria-expanded="true"] .nav-toggle__label::after { content: "收起"; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.site-footer {
  background: var(--green-deep);
  color: var(--green-pale);
  border-top: 6px solid var(--green);
}

.site-footer__emphasis {
  position: relative;
  background: var(--green);
  border-bottom: 3px solid var(--orange);
  overflow: hidden;
}

.site-footer__emphasis::before {
  content: "";
  position: absolute;
  top: -20%;
  right: -2%;
  width: 220px;
  height: 140%;
  background: var(--orange);
  opacity: 0.14;
  transform: skewX(-18deg);
  pointer-events: none;
}

.site-footer__emphasis-inner {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 24px;
  padding-block: 14px;
}

.site-footer__note {
  flex: none;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.2em;
  color: var(--orange);
  text-transform: uppercase;
  margin: 0;
}

.site-footer__trust {
  margin: 0;
  font-family: var(--font-head);
  font-style: italic;
  font-weight: 700;
  font-size: clamp(14px, 2vw, 18px);
  color: var(--paper);
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 0.9fr 0.9fr;
  gap: 48px;
  padding-block: 56px 48px;
}

.site-footer__brand-col .brand { margin-bottom: 16px; }

.site-footer__about {
  font-size: 14px;
  color: rgba(252, 250, 242, 0.72);
  max-width: 34em;
  margin-bottom: 20px;
}

.site-footer__contact {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 8px;
  margin: 0 0 8px;
  font-size: 14px;
  color: var(--paper);
}

.site-footer__contact > span:first-child {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--sand);
  text-transform: uppercase;
}

.site-footer__contact-value { font-family: var(--font-mono); font-size: 13px; word-break: break-all; }

.site-footer__address {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: 8px;
  margin: 0;
  font-size: 14px;
  color: rgba(252, 250, 242, 0.8);
}

.site-footer__address span {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  color: var(--sand);
  text-transform: uppercase;
}

.site-footer__heading {
  margin: 0 0 16px;
  padding-bottom: 8px;
  border-bottom: 2px solid var(--green);
  font-family: var(--font-mono);
  font-style: normal;
  font-size: 14px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--orange);
}

.site-footer__nav ul { margin: 0; padding: 0; list-style: none; }
.site-footer__nav li { border-bottom: 1px solid rgba(252, 250, 242, 0.09); }

.site-footer__nav a {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 9px 4px;
  color: rgba(252, 250, 242, 0.84);
  text-decoration: none;
  font-size: 15px;
  transition: color 0.2s, padding-left 0.2s;
}

.site-footer__nav a:hover,
.site-footer__nav a:focus-visible {
  color: var(--orange);
  padding-left: 10px;
}

.site-footer__nav a::after {
  content: "→";
  font-family: var(--font-mono);
  color: var(--green);
}

.site-footer__bottom {
  border-top: 2px solid var(--green);
  background: rgba(0, 0, 0, 0.18);
}

.site-footer__bottom-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding-block: 16px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: rgba(252, 250, 242, 0.6);
}

.site-footer__copyright { margin: 0; }
.site-footer__icp { margin: 0; letter-spacing: 0.06em; }
.site-footer__legal { margin: 0; display: flex; gap: 10px; }

.site-footer__legal a {
  color: rgba(252, 250, 242, 0.7);
  text-decoration: none;
}

.site-footer__legal a:hover { color: var(--orange); }
.site-footer__legal-sep { color: var(--green); }

.brand--footer .brand__mark {
  background: var(--orange);
  border-color: #fff;
  box-shadow: none;
}

.brand--footer .brand__name { color: var(--paper); }
.brand--footer .brand__slogan { color: var(--green-pale); }

.section {
  scroll-margin-top: 24px;
  padding-block: clamp(56px, 7vw, 96px);
  border-bottom: 1px solid var(--sand);
}

.section__header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 28px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--ink);
}

.section__index {
  font-family: var(--font-mono);
  color: var(--orange);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  margin: 0;
}

.section__title {
  margin: 0;
  font-family: var(--font-head);
  font-style: italic;
  font-weight: 800;
  font-size: clamp(28px, 3.5vw, 44px);
  color: var(--green-deep);
}

.section__meta {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--slate);
  text-align: right;
}

.section__body { display: grid; gap: 24px; }

.grid { display: grid; gap: 24px; grid-template-columns: 1fr; }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

.card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 24px;
  background: #fff;
  border: 1px solid var(--sand);
  border-top: 4px solid var(--green);
  color: var(--ink);
  text-decoration: none;
  box-shadow: 0 4px 18px rgba(11, 59, 26, 0.06);
  transition: transform 0.2s, box-shadow 0.2s, border-color 0.2s;
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: var(--orange);
}

.card__tag {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--orange);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin: 0;
}

.card__title {
  margin: 0;
  font-family: var(--font-head);
  font-style: italic;
  font-weight: 800;
  font-size: 22px;
  line-height: 1.25;
  color: var(--green-deep);
}

.card__meta {
  margin: 0;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--slate);
}

.card__body {
  margin: 0;
  font-size: 14px;
  color: var(--slate);
  flex: 1;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px;
  background: var(--orange-pale);
  border: 1px solid var(--orange);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--green-deep);
}

.tag::before { content: "#"; color: var(--orange); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 10px 22px;
  border: 2px solid var(--green);
  background: transparent;
  color: var(--green-deep);
  font-family: var(--font-head);
  font-style: italic;
  font-weight: 700;
  font-size: 16px;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, border-color 0.2s;
  white-space: nowrap;
}

.btn:hover,
.btn:focus-visible {
  background: var(--green);
  border-color: var(--green);
  color: #fff;
}

.btn--primary {
  background: var(--orange);
  border-color: var(--orange);
  color: #fff;
}

.btn--primary:hover,
.btn--primary:focus-visible {
  background: var(--green-deep);
  border-color: var(--green-deep);
}

.btn--ghost {
  border-color: var(--slate);
  color: var(--ink);
}

.btn--ghost:hover,
.btn--ghost:focus-visible {
  background: transparent;
  border-color: var(--orange);
  color: var(--orange);
}

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 6px;
  margin: 0 0 16px;
  padding: 0;
  list-style: none;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--slate);
}

.breadcrumb a { color: var(--green); text-decoration: none; }
.breadcrumb a:hover { color: var(--orange); }
.breadcrumb__sep { color: var(--sand); }
.breadcrumb [aria-current="page"] { color: var(--orange); font-weight: 700; }

.page-title {
  margin: clamp(28px, 5vw, 56px) 0 32px;
  padding-bottom: 16px;
  border-bottom: 3px solid var(--orange);
}

.page-title__meta {
  margin: 0 0 8px;
  font-family: var(--font-mono);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--orange);
}

.page-title h1 {
  margin: 0;
  font-family: var(--font-head);
  font-style: italic;
  font-weight: 800;
  font-size: clamp(36px, 6vw, 68px);
  line-height: 1.02;
  color: var(--green-deep);
}

.page-title p:last-child { margin-bottom: 0; }

.media {
  position: relative;
  overflow: hidden;
  background: var(--ink);
  border: 1px solid var(--sand);
  min-height: 120px;
}

.media::before { content: ""; display: block; }
.media--16-9::before { padding-top: 56.25%; }
.media--4-3::before { padding-top: 75%; }
.media--square::before { padding-top: 100%; }
.media--tall::before { padding-top: 125%; }

.media::after {
  content: "IMG / 赛场影像位";
  position: absolute;
  inset: 10px;
  display: grid;
  place-items: center;
  border: 1px dashed rgba(217, 201, 163, 0.55);
  color: var(--sand);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.16em;
  z-index: 0;
  pointer-events: none;
}

.media img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 1;
}

[data-reveal] {
  opacity: 0;
  transform: translate3d(0, 28px, 0);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

[data-reveal].is-revealed {
  opacity: 1;
  transform: translate3d(0, 0, 0);
}

@media (max-width: 1120px) {
  .nav-link { font-size: 15px; padding-inline: 10px; }
  .nav-link::after { left: 10px; right: 10px; }
}

@media (max-width: 1024px) {
  .site-footer__grid { grid-template-columns: 1fr 1fr; gap: 40px; }
  .grid--3, .grid--4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 767px) {
  .top-bar__meta { display: none; }
  .top-bar__inner { justify-content: center; }
  .top-bar__text::before { content: ""; }

  .site-header__row--brand { padding-block: 14px; }
  .nav-toggle { display: inline-flex; }

  .site-header__nav-band { display: none; }

  .site-header__nav-band[data-open="true"] {
    display: block;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    box-shadow: var(--shadow);
  }

  .site-header__row--nav { display: block; padding-block: 8px; }
  .site-header__nav-band .nav-list { flex-direction: column; }
  .site-header__nav-band .nav-list__item { border-bottom: 1px solid rgba(252, 250, 242, 0.12); }
  .site-header__nav-band .nav-list__item:last-child { border-bottom: 0; }
  .site-header__nav-band .nav-link { padding-block: 14px; }
  .site-header__nav-band .nav-link:hover { background: rgba(252, 250, 242, 0.08); }
  .site-header__nav-band .nav-link::after { display: none; }
  .site-header__coord { display: none; }

  .site-footer__grid { grid-template-columns: 1fr; gap: 36px; }
  .site-footer__emphasis-inner { flex-direction: column; gap: 6px; padding-block: 12px; }
  .site-footer__bottom-inner { flex-direction: column; text-align: center; }
  .grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .site-footer__grid { padding-block: 40px 32px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }

  [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
}