/* ============================================================
   浩瀚体育 · 共享站点样式 /assets/site.css
   深海雷达竞技指挥台 · 浮动胶囊导航 · 信号面板页脚
   ============================================================ */

:root {
  /* 品牌色板 */
  --abyss: #061A2B;
  --night: #0B2438;
  --graphite: #12364D;
  --cyan: #2DE2D0;
  --lava: #FF7A3D;
  --violet: #9B8CFF;
  --mist: #F2FBFF;
  --tide: #9DB6C8;
  --radar: #42E08B;
  --warn: #FFD166;

  /* 字体 */
  --font-display: "HarmonyOS Sans SC", "PingFang SC", "Noto Sans SC", system-ui, sans-serif;
  --font-body: "Noto Sans SC", "PingFang SC", "HarmonyOS Sans SC", system-ui, sans-serif;
  --font-mono: "Roboto Mono", ui-monospace, SFMono-Regular, Consolas, monospace;

  /* 尺寸与节奏 */
  --shell: 1320px;
  --edge: clamp(16px, 4vw, 40px);
  --hdr-top: 20px;
  --r-sm: 2px;
  --r-md: 6px;
  --r-pill: 999px;

  /* 动效 */
  --t: 160ms;
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

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

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

body {
  margin: 0;
  padding-top: clamp(104px, 11vw, 128px);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.85;
  color: var(--mist);
  background-color: var(--abyss);
  background-image:
    radial-gradient(900px 520px at 82% -8%, rgba(45, 226, 208, 0.13), transparent 68%),
    radial-gradient(720px 520px at 4% 42%, rgba(155, 140, 255, 0.08), transparent 70%),
    repeating-linear-gradient(90deg, rgba(157, 182, 200, 0.05) 0 1px, transparent 1px 96px),
    repeating-linear-gradient(0deg, rgba(157, 182, 200, 0.04) 0 1px, transparent 1px 96px);
  background-attachment: fixed, fixed, scroll, scroll;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4, h5, h6, p, figure, blockquote, dl, dd { margin: 0; }

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

img, svg, video, picture { max-width: 100%; }

img { height: auto; }

button, input, select, textarea {
  font: inherit;
  color: inherit;
}

a {
  color: var(--cyan);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

::selection {
  background: rgba(45, 226, 208, 0.28);
  color: var(--mist);
}

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

#main-content { scroll-margin-top: clamp(96px, 12vw, 136px); }

/* ---------------- 通用容器与排版工具 ---------------- */
.sig-shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--edge);
}

.sig-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--cyan);
}

.sig-label::before {
  content: "";
  width: 18px;
  height: 1px;
  background: currentColor;
  opacity: 0.75;
}

.sig-data {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.01em;
}

.sig-divider {
  height: 1px;
  border: 0;
  margin: clamp(28px, 4vw, 56px) 0;
  background: linear-gradient(90deg, rgba(45, 226, 208, 0.45), rgba(157, 182, 200, 0.12) 45%, transparent);
}

.sig-grid {
  display: grid;
  grid-template-columns: repeat(12, minmax(0, 1fr));
  gap: clamp(16px, 2vw, 32px);
}

/* ---------------- skip link ---------------- */
.sig-skip {
  position: fixed;
  top: -90px;
  left: 16px;
  z-index: 300;
  padding: 10px 20px;
  border-radius: var(--r-pill);
  background: var(--cyan);
  color: #04211F;
  font-weight: 700;
  font-size: 14px;
  text-decoration: none;
  transition: top var(--t) var(--ease);
}

.sig-skip:focus,
.sig-skip:focus-visible {
  top: 16px;
  outline-color: var(--lava);
}

/* ---------------- 按钮 ---------------- */
.sig-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 24px;
  border: 1px solid transparent;
  border-radius: var(--r-pill);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1.2;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  transition:
    background-color var(--t) var(--ease),
    border-color var(--t) var(--ease),
    color var(--t) var(--ease);
}

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

.sig-btn--accent:hover {
  background: #FF9A66;
  border-color: #FF9A66;
}

.sig-btn--ghost {
  background: transparent;
  border-color: rgba(45, 226, 208, 0.38);
  color: var(--mist);
}

.sig-btn--ghost:hover {
  border-color: var(--cyan);
  color: var(--cyan);
  background: rgba(45, 226, 208, 0.08);
}

.sig-btn--quiet {
  background: rgba(18, 54, 77, 0.55);
  border-color: rgba(157, 182, 200, 0.26);
  color: var(--tide);
}

.sig-btn--quiet:hover {
  color: var(--mist);
  border-color: rgba(157, 182, 208, 0.55);
}

/* ---------------- 状态标签 ---------------- */
.sig-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px;
  border: 1px solid currentColor;
  border-radius: var(--r-pill);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  line-height: 1.6;
  color: var(--violet);
  background: rgba(155, 140, 255, 0.1);
}

.sig-tag--cyan { color: var(--cyan); background: rgba(45, 226, 208, 0.1); }
.sig-tag--lava { color: var(--lava); background: rgba(255, 122, 61, 0.12); }
.sig-tag--radar { color: var(--radar); background: rgba(66, 224, 139, 0.1); }
.sig-tag--warn { color: var(--warn); background: rgba(255, 209, 102, 0.12); }

/* ---------------- 图片容器基座 ---------------- */
.sig-media {
  position: relative;
  display: block;
  width: 100%;
  overflow: hidden;
  border: 1px solid rgba(45, 226, 208, 0.16);
  border-radius: var(--r-sm);
  background: linear-gradient(150deg, var(--graphite) 0%, var(--night) 58%, var(--abyss) 100%);
  isolation: isolate;
}

.sig-media > img,
.sig-media > picture > img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(1.06) contrast(1.05);
}

.sig-media--16x9 { aspect-ratio: 16 / 9; }
.sig-media--4x5 { aspect-ratio: 4 / 5; }
.sig-media--1x1 { aspect-ratio: 1 / 1; }
.sig-media--21x9 { aspect-ratio: 21 / 9; }

.sig-media__grid {
  position: absolute;
  inset: 0;
  z-index: 2;
  pointer-events: none;
  opacity: 0.65;
  mix-blend-mode: screen;
  background-image:
    repeating-linear-gradient(90deg, rgba(45, 226, 208, 0.16) 0 1px, transparent 1px 56px),
    repeating-linear-gradient(0deg, rgba(45, 226, 208, 0.1) 0 1px, transparent 1px 56px),
    radial-gradient(58% 58% at 76% 22%, rgba(45, 226, 208, 0.22), transparent 72%);
}

.sig-media__plate {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 3;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 8px 16px;
  padding: 14px 16px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  color: var(--tide);
  background: linear-gradient(180deg, rgba(6, 26, 43, 0) 0%, rgba(6, 26, 43, 0.92) 72%);
}

/* ---------------- 框景容器 ---------------- */
.sig-frame {
  position: relative;
  padding: clamp(20px, 3vw, 40px);
  border: 1px solid rgba(45, 226, 208, 0.2);
  border-radius: var(--r-md);
  background: linear-gradient(165deg, rgba(11, 36, 56, 0.72), rgba(6, 26, 43, 0.28));
}

.sig-frame::before,
.sig-frame::after {
  content: "";
  position: absolute;
  width: 14px;
  height: 14px;
  border: 1px solid var(--cyan);
  pointer-events: none;
}

.sig-frame::before {
  top: -1px;
  left: -1px;
  border-right: 0;
  border-bottom: 0;
}

.sig-frame::after {
  bottom: -1px;
  right: -1px;
  border-left: 0;
  border-top: 0;
}

/* ---------------- 章节头与面包屑 ---------------- */
.sig-section-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 14px 32px;
  margin-bottom: clamp(24px, 3vw, 40px);
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(157, 182, 200, 0.16);
}

.sig-section-head__title {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(26px, 3.4vw, 40px);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.16;
}

.sig-section-head__note {
  max-width: 46ch;
  font-size: 14px;
  line-height: 1.75;
  color: var(--tide);
}

.sig-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  color: var(--tide);
}

.sig-breadcrumb li { display: inline-flex; align-items: center; gap: 8px; }

.sig-breadcrumb li + li::before {
  content: "/";
  color: rgba(157, 182, 200, 0.45);
}

.sig-breadcrumb a {
  color: var(--tide);
  text-decoration: none;
  transition: color var(--t) var(--ease);
}

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

.sig-breadcrumb [aria-current="page"] { color: var(--mist); }

/* ---------------- 长文排版 ---------------- */
.sig-prose {
  max-width: 72ch;
  font-size: 16.5px;
  line-height: 1.9;
  color: #D6E6F0;
}

.sig-prose > * + * { margin-top: 1.1em; }

.sig-prose h2,
.sig-prose h3 {
  font-family: var(--font-display);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.32;
  color: var(--mist);
}

.sig-prose h2 {
  margin-top: 2.1em;
  font-size: clamp(20px, 2.4vw, 28px);
}

.sig-prose h3 {
  margin-top: 1.8em;
  font-size: clamp(17px, 1.8vw, 20px);
}

.sig-prose strong { color: var(--mist); }

.sig-prose ul,
.sig-prose ol { padding-left: 1.25em; }

.sig-prose ul { list-style: disc; }
.sig-prose ol { list-style: decimal; }

.sig-prose li + li { margin-top: 0.5em; }

.sig-prose a {
  color: var(--cyan);
  text-decoration-color: rgba(45, 226, 208, 0.45);
}

.sig-prose a:hover { text-decoration-color: var(--cyan); }

/* ============================================================
   悬浮胶囊导航
   ============================================================ */
.hdr {
  position: fixed;
  top: var(--hdr-top);
  left: 0;
  right: 0;
  z-index: 120;
  padding-inline: clamp(12px, 3vw, 32px);
}

.hdr__capsule {
  position: relative;
  display: flex;
  align-items: center;
  gap: clamp(12px, 2.2vw, 30px);
  max-width: var(--shell);
  margin-inline: auto;
  padding: 9px 10px 9px 16px;
  border: 1px solid rgba(45, 226, 208, 0.22);
  border-radius: var(--r-pill);
  background: rgba(6, 26, 43, 0.78);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  backdrop-filter: blur(14px) saturate(140%);
  box-shadow:
    0 24px 60px -34px rgba(0, 0, 0, 0.95),
    inset 0 1px 0 rgba(242, 251, 255, 0.05);
  transition: border-color var(--t) var(--ease), background-color var(--t) var(--ease);
}

.hdr__capsule:hover { border-color: rgba(45, 226, 208, 0.4); }

/* 滚动信号进度：由 JS 写入 --sig-progress */
.hdr__capsule::after {
  content: "";
  position: absolute;
  left: 30px;
  right: 30px;
  bottom: 5px;
  height: 1.5px;
  border-radius: 2px;
  pointer-events: none;
  opacity: 0.9;
  background: linear-gradient(90deg, var(--cyan), var(--violet) 55%, var(--lava));
  transform: scaleX(var(--sig-progress, 0));
  transform-origin: left center;
}

.hdr__brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex: none;
  color: var(--mist);
  text-decoration: none;
}

.hdr__mark {
  position: relative;
  display: grid;
  place-items: center;
  width: 28px;
  height: 28px;
  flex: none;
  border: 1px solid rgba(45, 226, 208, 0.55);
  border-radius: 50%;
}

.hdr__mark::after {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--lava);
  box-shadow: 0 0 12px 1px rgba(255, 122, 61, 0.7);
}

.hdr__mark-ring {
  position: absolute;
  inset: -4px;
  border: 1px dashed rgba(45, 226, 208, 0.3);
  border-radius: 50%;
}

.hdr__brand-text {
  display: flex;
  flex-direction: column;
  line-height: 1.16;
}

.hdr__brand-name {
  font-family: var(--font-display);
  font-size: 16px;
  font-weight: 800;
  letter-spacing: 0.02em;
}

.hdr__brand-sub {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--tide);
}

.hdr__nav {
  display: flex;
  align-items: center;
  margin-inline: auto;
}

.hdr__list {
  display: flex;
  align-items: center;
  gap: clamp(10px, 1.6vw, 26px);
}

.hdr__link {
  position: relative;
  display: inline-block;
  padding: 6px 1px;
  font-size: 14px;
  letter-spacing: 0.02em;
  white-space: nowrap;
  color: var(--tide);
  text-decoration: none;
  transition: color var(--t) var(--ease);
}

.hdr__link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: var(--cyan);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform var(--t) var(--ease);
}

.hdr__link:hover,
.hdr__link:focus-visible { color: var(--mist); }

.hdr__link:hover::after,
.hdr__link:focus-visible::after { transform: scaleX(1); }

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

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

.hdr__cta {
  flex: none;
  padding: 10px 20px;
  font-size: 13px;
}

.hdr__toggle {
  display: none;
  align-items: center;
  gap: 8px;
  margin-left: auto;
  padding: 8px 14px 8px 12px;
  border: 1px solid rgba(45, 226, 208, 0.32);
  border-radius: var(--r-pill);
  background: rgba(18, 54, 77, 0.6);
  color: var(--mist);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  cursor: pointer;
  transition: border-color var(--t) var(--ease), background-color var(--t) var(--ease);
}

.hdr__toggle:hover {
  border-color: var(--cyan);
  background: rgba(18, 54, 77, 0.95);
}

.hdr__toggle-icon {
  position: relative;
  display: block;
  width: 16px;
  height: 10px;
}

.hdr__toggle-icon::before,
.hdr__toggle-icon::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  height: 1.5px;
  background: currentColor;
  transition:
    transform var(--t) var(--ease),
    top var(--t) var(--ease),
    bottom var(--t) var(--ease);
}

.hdr__toggle-icon::before { top: 0; }
.hdr__toggle-icon::after { bottom: 0; }

.hdr__toggle[aria-expanded="true"] .hdr__toggle-icon::before {
  top: 4px;
  transform: rotate(45deg);
}

.hdr__toggle[aria-expanded="true"] .hdr__toggle-icon::after {
  bottom: 4px;
  transform: rotate(-45deg);
}

/* ============================================================
   页脚信号面板
   ============================================================ */
.ftr {
  position: relative;
  margin-top: clamp(72px, 10vw, 132px);
  border-top: 1px solid rgba(45, 226, 208, 0.16);
  background: linear-gradient(180deg, rgba(11, 36, 56, 0.6) 0%, rgba(11, 36, 56, 0.95) 32%, var(--abyss) 100%);
  color: var(--tide);
}

.ftr::before {
  content: "";
  position: absolute;
  top: -1px;
  left: 0;
  right: 0;
  height: 1px;
  opacity: 0.45;
  background: repeating-linear-gradient(90deg, var(--cyan) 0 10px, transparent 10px 34px);
}

.ftr__inner {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) repeat(3, minmax(0, 0.75fr)) minmax(0, 1.15fr);
  gap: clamp(24px, 3vw, 44px);
  max-width: var(--shell);
  margin-inline: auto;
  padding: clamp(40px, 6vw, 76px) var(--edge) clamp(28px, 4vw, 48px);
}

.ftr__brand { min-width: 0; }

.ftr__brand .sig-label { color: var(--cyan); }

.ftr__summary {
  max-width: 34ch;
  margin: 14px 0 22px;
  font-size: 17px;
  line-height: 1.75;
  color: var(--mist);
}

.ftr__col { min-width: 0; }

.ftr__col-title {
  margin: 0 0 14px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--mist);
}

.ftr__list { display: grid; gap: 2px; }

.ftr__link {
  display: inline-block;
  padding: 5px 0;
  font-size: 14px;
  color: var(--tide);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color var(--t) var(--ease), border-color var(--t) var(--ease);
}

.ftr__link:hover {
  color: var(--cyan);
  border-bottom-color: rgba(45, 226, 208, 0.6);
}

.ftr__signal {
  align-self: start;
  padding: 20px;
  border: 1px solid rgba(45, 226, 208, 0.16);
  border-radius: var(--r-md);
  background: linear-gradient(160deg, rgba(18, 54, 77, 0.55), rgba(6, 26, 43, 0.2));
}

.ftr__signal-title {
  margin-bottom: 14px;
  color: var(--cyan);
}

.ftr__dl {
  display: grid;
  gap: 10px;
  margin: 0 0 16px;
  font-size: 13.5px;
}

.ftr__dl-row {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 10px;
  align-items: start;
}

.ftr__dl-row dt {
  padding-top: 3px;
  font-family: var(--font-mono);
  font-size: 10.5px;
  letter-spacing: 0.12em;
  color: var(--tide);
}

.ftr__dl-row dd {
  margin: 0;
  line-height: 1.6;
  color: var(--mist);
  word-break: break-word;
}

.ftr__note {
  margin: 0;
  font-size: 12.5px;
  line-height: 1.7;
  color: var(--tide);
}

.ftr__base {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px 28px;
  max-width: var(--shell);
  margin-inline: auto;
  padding: 18px var(--edge) 30px;
  border-top: 1px solid rgba(157, 182, 200, 0.14);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: 0.06em;
  color: var(--tide);
}

.ftr__legal { margin: 0; }

.ftr__legal-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
}

.ftr__legal-nav a {
  color: var(--tide);
  text-decoration: none;
  transition: color var(--t) var(--ease);
}

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

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 1180px) {
  .ftr__inner {
    grid-template-columns: minmax(0, 1.2fr) repeat(3, minmax(0, 0.8fr));
  }
  .ftr__signal { grid-column: 1 / -1; }
}

@media (max-width: 980px) {
  .hdr__nav {
    position: absolute;
    top: calc(100% + 10px);
    left: 0;
    right: 0;
    display: none;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    margin: 0;
    padding: 12px;
    border: 1px solid rgba(45, 226, 208, 0.2);
    border-radius: 20px;
    background: rgba(6, 26, 43, 0.97);
    -webkit-backdrop-filter: blur(18px);
    backdrop-filter: blur(18px);
    box-shadow: 0 30px 70px -40px #000;
  }

  .hdr__nav[data-open] { display: flex; }

  .hdr__list {
    flex-direction: column;
    align-items: stretch;
    gap: 2px;
    width: 100%;
  }

  .hdr__link {
    display: block;
    padding: 11px 14px;
    border-radius: 12px;
    font-size: 15px;
  }

  .hdr__link::after {
    left: 14px;
    right: auto;
    bottom: 9px;
    width: 0;
    height: 2px;
    transform: none;
    transition: width var(--t) var(--ease);
  }

  .hdr__link:hover::after,
  .hdr__link:focus-visible::after,
  .hdr__link[aria-current="page"]::after { width: 20px; transform: none; }

  .hdr__toggle { display: inline-flex; }

  .hdr__cta { margin-left: auto; }

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

  .ftr__brand { grid-column: 1 / -1; }

  .ftr__signal { grid-column: 1 / -1; }
}

@media (max-width: 760px) {
  .sig-grid { grid-template-columns: repeat(6, minmax(0, 1fr)); }

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

@media (max-width: 640px) {
  body { padding-top: 92px; }

  .hdr { top: 10px; }

  .hdr__capsule { padding: 8px 8px 8px 13px; gap: 10px; }

  .hdr__brand-sub { display: none; }

  .hdr__cta { padding: 9px 15px; font-size: 12.5px; }

  .hdr__toggle-text { display: none; }

  .hdr__toggle { padding: 9px 11px; }

  .hdr__capsule::after { left: 20px; right: 20px; bottom: 4px; }

  .ftr__inner { grid-template-columns: minmax(0, 1fr); }
}

@media (max-width: 420px) {
  .hdr__cta { padding: 8px 12px; font-size: 12px; }

  .ftr__dl-row { grid-template-columns: minmax(0, 1fr); gap: 2px; }
}

/* ---------------- 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;
  }
}