/* ===== KK赛场 · 共享样式 /assets/site.css ===== */

:root {
  --ink: #06111F;
  --deep-teal: #0B2B2E;
  --indigo: #21163F;
  --wine: #3A1220;
  --panel: #0D1B2A;
  --silver: #DDE7F2;
  --gray: #A6B4C5;
  --cyan: #35F2D0;
  --orange: #FF7A2F;
  --violet: #A48BFF;
  --green: #6BE6A6;
  --rose: #FF6B8A;

  --line: rgba(221, 231, 242, 0.14);
  --line-strong: rgba(221, 231, 242, 0.3);
  --dim: #7C8DA3;
  --dim-deep: #5E7189;

  --font-display: "Songti SC", "Noto Serif SC", "Source Han Serif SC", Georgia, "Times New Roman", serif;
  --font-body: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", system-ui, -apple-system, sans-serif;
  --font-cond: "Barlow Condensed", "Oswald", "Arial Narrow", "PingFang SC", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --maxw: 1240px;
  --gutter: clamp(1rem, 4vw, 2.5rem);
  --radius: 2px;
}

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

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

body {
  margin: 0;
  background: var(--ink);
  color: var(--gray);
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 400;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

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

h1, h2, h3, h4, h5 {
  margin: 0 0 0.6em;
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.28;
  letter-spacing: -0.01em;
  color: var(--silver);
}

p { margin: 0 0 1em; }
p:last-child { margin-bottom: 0; }

a { color: var(--cyan); text-decoration: none; }
a:hover { color: #6EF8E0; }

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

button { font: inherit; }

::selection { background: var(--cyan); color: #04121A; }

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

/* ---------- 通用工具 ---------- */

.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0 0 0.6rem;
  font-family: var(--font-cond);
  font-size: 0.74rem;
  font-weight: 600;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--cyan);
}

.eyebrow::before {
  content: "";
  width: 18px;
  height: 1px;
  background: currentColor;
  opacity: 0.8;
}

.lede {
  font-size: 1.0625rem;
  line-height: 1.85;
  color: #BCC9D8;
}

.data-num {
  font-family: var(--font-mono);
  font-size: clamp(1.4rem, 3.4vw, 2.4rem);
  line-height: 1.05;
  letter-spacing: -0.01em;
  font-variant-numeric: tabular-nums;
  color: var(--silver);
}

.grid-auto {
  display: grid;
  gap: clamp(0.85rem, 2vw, 1.5rem);
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

/* ---------- 按钮 ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.68rem 1.25rem;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: 0.92rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 0.2s ease, border-color 0.2s ease, color 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.btn--primary {
  background: var(--cyan);
  border-color: var(--cyan);
  color: #04121A;
}

.btn--primary:hover {
  background: #61F5DB;
  border-color: #61F5DB;
  color: #04121A;
  transform: translateY(-1px);
  box-shadow: 0 8px 26px rgba(53, 242, 208, 0.22);
}

.btn--accent {
  background: var(--orange);
  border-color: var(--orange);
  color: #1A0A02;
}

.btn--accent:hover {
  background: #FF9155;
  border-color: #FF9155;
  color: #1A0A02;
  transform: translateY(-1px);
  box-shadow: 0 8px 26px rgba(255, 122, 47, 0.24);
}

.btn--ghost {
  background: transparent;
  border-color: var(--line-strong);
  color: var(--silver);
}

.btn--ghost:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  transform: translateY(-1px);
}

/* ---------- 标签 ---------- */

.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.16rem 0.5rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  font-family: var(--font-cond);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gray);
  white-space: nowrap;
}

.tag--live {
  border-color: rgba(107, 230, 166, 0.5);
  color: var(--green);
  background: rgba(107, 230, 166, 0.08);
}

.tag--cyan {
  border-color: rgba(53, 242, 208, 0.45);
  color: var(--cyan);
  background: rgba(53, 242, 208, 0.08);
}

.tag--violet {
  border-color: rgba(164, 139, 255, 0.45);
  color: var(--violet);
  background: rgba(164, 139, 255, 0.08);
}

.tag--warn {
  border-color: rgba(255, 107, 138, 0.5);
  color: var(--rose);
  background: rgba(255, 107, 138, 0.08);
}

/* ---------- 面包屑 ---------- */

.crumb { padding-block: 0.25rem; }

.crumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.78rem;
  letter-spacing: 0.06em;
  color: var(--dim);
}

.crumb__item { display: inline-flex; align-items: center; gap: 0.45rem; }

.crumb__link {
  color: var(--gray);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.18s ease, border-color 0.18s ease;
}

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

.crumb__sep { color: #42566B; }

/* ---------- 面板 ---------- */

.panel {
  padding: clamp(1rem, 2.2vw, 1.5rem);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(160deg, rgba(13, 27, 42, 0.96), rgba(11, 43, 46, 0.72));
  transition: border-color 0.2s ease, box-shadow 0.2s ease, transform 0.2s ease;
}

.panel:hover {
  border-color: rgba(53, 242, 208, 0.42);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.38);
  transform: translateY(-2px);
}

.panel__head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  padding-bottom: 0.7rem;
  margin-bottom: 0.9rem;
  border-bottom: 1px solid var(--line);
}

.panel__title {
  margin: 0;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--silver);
}

.panel__meta {
  font-family: var(--font-cond);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--violet);
}

/* ---------- 图片容器 ---------- */

.figure {
  position: relative;
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(150deg, var(--panel), var(--deep-teal) 62%, var(--indigo));
}

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

.figure__media {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  background:
    radial-gradient(58% 78% at 18% 8%, rgba(53, 242, 208, 0.2), transparent 62%),
    radial-gradient(52% 70% at 86% 88%, rgba(255, 122, 47, 0.18), transparent 66%),
    repeating-linear-gradient(115deg, rgba(221, 231, 242, 0.06) 0 1px, transparent 1px 24px);
}

.figure--wide .figure__media { aspect-ratio: 16 / 7; }
.figure--tall .figure__media { aspect-ratio: 3 / 4; }
.figure--square .figure__media { aspect-ratio: 1 / 1; }

.figure__badge {
  position: absolute;
  top: 0.75rem;
  left: 0.75rem;
  padding: 0.2rem 0.5rem;
  border: 1px solid rgba(53, 242, 208, 0.4);
  border-radius: var(--radius);
  background: rgba(6, 17, 31, 0.78);
  font-family: var(--font-cond);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--cyan);
}

.figure__caption {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  padding: 0.7rem 1rem;
  font-size: 0.76rem;
  letter-spacing: 0.04em;
  color: var(--silver);
  background: linear-gradient(0deg, rgba(6, 17, 31, 0.94), rgba(6, 17, 31, 0));
}

/* =========================================================
   头部
   ========================================================= */

.masthead {
  position: relative;
  z-index: 40;
  color: var(--silver);
  background:
    radial-gradient(120% 150% at 50% -70%, rgba(53, 242, 208, 0.12), transparent 62%),
    linear-gradient(180deg, #081826 0%, var(--ink) 68%);
  border-bottom: 1px solid var(--line);
}

.masthead::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -1px;
  left: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(53, 242, 208, 0.55) 20%, rgba(255, 122, 47, 0.45) 80%, transparent);
  opacity: 0.85;
}

.scroll-meter {
  position: absolute;
  top: 0;
  right: 0;
  left: 0;
  z-index: 3;
  height: 2px;
  background: rgba(221, 231, 242, 0.08);
}

.scroll-meter span {
  display: block;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, var(--cyan), var(--violet) 55%, var(--orange));
  transform: scaleX(var(--p, 0));
  transform-origin: 0 50%;
  transition: transform 0.15s linear;
}

.skip-link {
  position: absolute;
  top: -200%;
  left: var(--gutter);
  z-index: 99;
  padding: 0.6rem 1rem;
  background: var(--cyan);
  color: #04121A;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-decoration: none;
  border-radius: var(--radius);
  transition: top 0.18s ease;
}

.skip-link:focus { top: 0.6rem; color: #04121A; }

.masthead__inner {
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* 靛紫报眼条 */
.masthead__rail {
  background: linear-gradient(90deg, var(--indigo), #1A1033 42%, var(--deep-teal));
  border-bottom: 1px solid var(--line);
}

.masthead__rail .masthead__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem 1.25rem;
  min-height: 38px;
  padding-block: 0.25rem;
}

.rail-status {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  margin: 0;
  font-size: 0.73rem;
  letter-spacing: 0.14em;
  color: #93A8BE;
}

.status-dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  flex: none;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 3px rgba(107, 230, 166, 0.16);
}

.masthead__utility {
  display: flex;
  align-items: center;
  gap: 1.25rem;
}

.utility-link {
  display: inline-block;
  padding: 0.2rem 0;
  border-bottom: 1px solid transparent;
  font-family: var(--font-cond);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--gray);
  text-decoration: none;
  transition: color 0.18s ease, border-color 0.18s ease;
}

.utility-link:hover {
  color: var(--cyan);
  border-bottom-color: var(--cyan);
}

/* 刊头版位 */
.masthead__plate {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 1rem;
  padding-block: 1.4rem 1.15rem;
}

.masthead__side {
  display: grid;
  gap: 0.1rem;
  margin: 0;
}

.masthead__side--end {
  justify-items: end;
  text-align: right;
}

.masthead__side-label {
  font-family: var(--font-cond);
  font-size: 0.66rem;
  font-weight: 600;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--dim-deep);
}

.masthead__side-value {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.02em;
  color: var(--silver);
}

.brand-wrap { display: block; text-align: center; }

.brand {
  display: block;
  text-decoration: none;
  color: var(--silver);
}

.brand__name {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(2.2rem, 6.2vw, 4rem);
  line-height: 1;
  letter-spacing: -0.02em;
  color: #F3F8FD;
  text-shadow: 0 0 34px rgba(53, 242, 208, 0.2);
  transition: text-shadow 0.25s ease, color 0.25s ease;
}

.brand:hover .brand__name {
  color: #FFFFFF;
  text-shadow: 0 0 44px rgba(53, 242, 208, 0.36);
}

.brand__descriptor {
  display: block;
  margin-top: 0.55rem;
  padding-left: 0.34em;
  font-family: var(--font-cond);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.34em;
  text-transform: uppercase;
  color: var(--cyan);
  opacity: 0.92;
}

/* 移动端导航按钮 */
.nav-toggle {
  display: none;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 0.7rem;
  border: 1px solid rgba(53, 242, 208, 0.38);
  border-radius: var(--radius);
  background: rgba(53, 242, 208, 0.06);
  color: var(--cyan);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  cursor: pointer;
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

.nav-toggle:hover { border-color: var(--cyan); background: rgba(53, 242, 208, 0.12); }

.nav-toggle__bars {
  display: grid;
  gap: 3px;
  width: 14px;
}

.nav-toggle__bars span {
  display: block;
  height: 1.5px;
  background: currentColor;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.masthead[data-open] .nav-toggle__bars span:nth-child(1) { transform: translateY(4.5px) rotate(45deg); }
.masthead[data-open] .nav-toggle__bars span:nth-child(2) { opacity: 0; }
.masthead[data-open] .nav-toggle__bars span:nth-child(3) { transform: translateY(-4.5px) rotate(-45deg); }

/* 一级栏目 */
.primary-nav {
  position: relative;
  border-top: 1px solid var(--line);
  background: linear-gradient(180deg, rgba(13, 27, 42, 0.92), rgba(6, 17, 31, 0.45));
}

.nav-list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: clamp(0.4rem, 2.6vw, 1.9rem);
  padding-inline: 0;
}

.nav-item { display: block; }

.nav-link {
  position: relative;
  display: block;
  padding: 0.95rem 0.3rem;
  font-size: 0.95rem;
  letter-spacing: 0.06em;
  color: var(--gray);
  text-decoration: none;
  transition: color 0.18s ease;
}

.nav-link::after {
  content: "";
  position: absolute;
  right: 0.3rem;
  bottom: 0.55rem;
  left: 0.3rem;
  height: 1px;
  background: var(--cyan);
  transform: scaleX(0);
  transform-origin: 0 50%;
  transition: transform 0.22s ease, background-color 0.22s ease;
}

.nav-link:hover { color: var(--silver); }
.nav-link:hover::after { transform: scaleX(1); }

.nav-link[aria-current="page"] { color: #F4FAFF; }

.nav-link[aria-current="page"]::after {
  transform: scaleX(1);
  background: linear-gradient(90deg, var(--cyan), var(--orange));
}

/* =========================================================
   页脚
   ========================================================= */

.site-footer {
  position: relative;
  margin-top: clamp(2.5rem, 6vw, 5rem);
  border-top: 1px solid var(--line);
  color: var(--gray);
  background: linear-gradient(176deg, #0A2230 0%, var(--deep-teal) 40%, #091A2E 100%);
}

.footer-stripe {
  height: 3px;
  background: linear-gradient(90deg, var(--cyan) 0%, var(--violet) 44%, var(--orange) 100%);
  opacity: 0.88;
}

.footer__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(1.75rem, 4vw, 3rem);
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding: clamp(2rem, 5vw, 3.4rem) var(--gutter) 2.2rem;
}

.footer__brandline {
  margin: 0 0 0.6rem;
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--silver);
}

.footer__desc {
  max-width: 34ch;
  font-size: 0.92rem;
  line-height: 1.85;
  color: var(--gray);
}

.footer__tag {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  margin: 1rem 0 0;
  font-size: 0.76rem;
  letter-spacing: 0.1em;
  color: #93A8BE;
}

.footer__nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.footer__group { min-width: 0; }

.footer__gtitle {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0 0 0.95rem;
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  color: var(--cyan);
}

.footer__gtitle::before {
  content: "";
  width: 14px;
  height: 1px;
  background: currentColor;
  opacity: 0.75;
}

.footer__list { display: grid; gap: 0.55rem; }

.footer__list a {
  display: inline-block;
  font-size: 0.9rem;
  color: var(--gray);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color 0.18s ease, border-color 0.18s ease;
}

.footer__list a:hover {
  color: var(--cyan);
  border-bottom-color: rgba(53, 242, 208, 0.5);
}

.footer__contact {
  display: grid;
  gap: 0.7rem;
  margin: 0;
}

.footer__contact dt {
  font-size: 0.7rem;
  letter-spacing: 0.18em;
  color: var(--dim-deep);
}

.footer__contact dd {
  margin: 0.15rem 0 0;
  font-family: var(--font-mono);
  font-size: 0.86rem;
  letter-spacing: 0.01em;
  color: var(--silver);
  word-break: break-word;
}

.footer__contact dd.is-text {
  font-family: var(--font-body);
  font-size: 0.86rem;
  line-height: 1.65;
  color: var(--gray);
}

.to-top {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  margin-top: 1.35rem;
  padding: 0.5rem 0.9rem;
  border: 1px solid rgba(53, 242, 208, 0.4);
  border-radius: var(--radius);
  background: transparent;
  color: var(--cyan);
  font-family: var(--font-cond);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(4px);
  transition: opacity 0.2s ease, transform 0.2s ease, background-color 0.2s ease, border-color 0.2s ease, visibility 0.2s;
}

.to-top[data-visible] {
  opacity: 1;
  visibility: visible;
  transform: none;
}

.to-top:hover {
  border-color: var(--cyan);
  background: rgba(53, 242, 208, 0.1);
}

.footer__base {
  border-top: 1px solid var(--line);
  background: rgba(6, 17, 31, 0.55);
}

.footer__base-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem 1.5rem;
  width: 100%;
  max-width: var(--maxw);
  margin-inline: auto;
  padding: 1.05rem var(--gutter);
}

.footer__legal {
  margin: 0;
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--dim);
}

/* =========================================================
   响应式
   ========================================================= */

@media (min-width: 760px) {
  .footer__inner {
    grid-template-columns: 1.35fr 1.5fr 0.95fr;
    align-items: start;
  }
}

@media (max-width: 860px) {
  .masthead__plate {
    position: relative;
    padding-block: 1rem 0.85rem;
  }

  .masthead__side { display: none; }

  .brand-wrap {
    width: 100%;
    padding-inline: 3rem;
  }

  .brand__name { font-size: clamp(1.9rem, 8vw, 2.6rem); }

  .brand__descriptor {
    font-size: 0.66rem;
    letter-spacing: 0.26em;
    padding-left: 0.26em;
  }

  .nav-toggle {
    position: absolute;
    top: 0.95rem;
    right: 0;
    display: inline-flex;
  }

  .primary-nav { display: none; }

  .masthead[data-open] .primary-nav { display: block; }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding-block: 0.35rem 1.1rem;
  }

  .nav-item { border-bottom: 1px solid var(--line); }
  .nav-item:last-child { border-bottom: 0; }

  .nav-link {
    padding: 0.85rem 0.25rem;
    font-size: 1rem;
  }

  .nav-link::after {
    right: auto;
    left: 0.25rem;
    bottom: 0.5rem;
    width: 26px;
  }

  .footer__nav { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 520px) {
  .masthead__rail .masthead__inner { justify-content: center; }

  .footer__base-inner { justify-content: flex-start; }

  .footer__legal { font-size: 0.75rem; }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}