/* ============================================================
   完美体育 · Site Kit
   极简文字建筑 / 切角斜线 / 运动轨迹 / 品牌手册章节
   ============================================================ */

/* ---------- 基础与变量 ---------- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

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

body {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
  overflow-x: hidden;
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.75;
  background:
    radial-gradient(1100px 520px at 85% -10%, rgba(255, 90, 0, 0.07), transparent 62%),
    radial-gradient(760px 460px at -8% 28%, rgba(0, 255, 158, 0.05), transparent 58%),
    var(--color-bg);
  color: var(--color-white);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img, picture, svg, canvas, video { display: block; max-width: 100%; height: auto; }
ul, ol { list-style: none; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
h1, h2, h3, h4, h5, h6 { font-family: var(--font-head); font-weight: 800; line-height: 1.15; letter-spacing: 0.01em; }
p { margin: 0; }

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

:focus-visible { outline: 3px solid var(--color-green); outline-offset: 3px; }

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--color-bg); }
::-webkit-scrollbar-thumb { background: var(--color-navy-light); border: 2px solid var(--color-bg); }
::-webkit-scrollbar-thumb:hover { background: var(--color-orange); }

:root {
  --color-bg: #0b0b0f;
  --color-navy: #0a1f3c;
  --color-navy-light: #122c4f;
  --color-orange: #ff5a00;
  --color-green: #00ff9e;
  --color-silver: #c0c0c0;
  --color-white: #f2f4f8;
  --color-gold: #ffb800;
  --color-red: #ff3b47;

  --font-head: "Rajdhani", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-body: "Inter", "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;

  --container: 1240px;
  --header-h: 64px;
  --space-sm: 12px;
  --space-md: 24px;
  --space-lg: 40px;
  --space-xl: 64px;
}

@media (min-width: 960px) {
  :root { --header-h: 72px; }
}

/* ---------- 基础布局 ---------- */
.container {
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--space-md);
}

.section { padding-block: var(--space-xl); }

#main-content { display: block; scroll-margin-top: var(--header-h); }

.site-main {
  flex: 1 0 auto;
  padding-top: var(--header-h);
}

/* ---------- 隐藏状态 ---------- */
[data-hidden="true"],
[hidden] { display: none !important; }

/* ---------- 杂志封面首屏 ---------- */
.page-cover {
  position: relative;
  overflow: hidden;
  min-height: 72vh;
  margin-top: calc(var(--header-h) * -1);
  padding-top: calc(var(--header-h) + clamp(56px, 12vh, 132px));
  padding-bottom: clamp(40px, 8vh, 80px);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
}

.page-cover__eyebrow {
  position: relative;
  display: inline-block;
  margin-bottom: 18px;
  padding-left: 34px;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--color-green);
}

.page-cover__eyebrow::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 24px;
  height: 2px;
  background: var(--color-orange);
  transform: skewX(-32deg);
}

.page-cover__title {
  max-width: 16ch;
  font-size: clamp(40px, 7vw, 76px);
  font-weight: 900;
  line-height: 0.98;
  letter-spacing: 0.01em;
  text-transform: uppercase;
}

.page-cover__lead {
  max-width: 56ch;
  margin-top: 24px;
  font-size: 17px;
  color: var(--color-silver);
}

/* ---------- 章节标题 ---------- */
.section-head {
  display: grid;
  grid-template-columns: auto 1fr;
  column-gap: 20px;
  align-items: end;
  margin-bottom: var(--space-lg);
}

.section-head__index {
  grid-row: 1 / span 2;
  font-family: var(--font-head);
  font-size: clamp(44px, 6vw, 76px);
  font-weight: 900;
  font-style: italic;
  line-height: 1;
  color: var(--color-orange);
  text-shadow: 4px 4px 0 rgba(255, 90, 0, 0.16);
}

.section-head__title {
  padding-top: 10px;
  font-size: clamp(24px, 3vw, 34px);
  font-weight: 800;
  color: var(--color-white);
}

.section-head__lead {
  max-width: 62ch;
  padding-bottom: 4px;
  font-size: 15px;
  color: var(--color-silver);
}

/* ---------- 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 13px 26px;
  border: 1px solid transparent;
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 16px;
  letter-spacing: 0.08em;
  line-height: 1;
  transition: background-color 0.25s, border-color 0.25s, color 0.25s, transform 0.15s;
}

.btn:hover { transform: translateY(-2px); }

.btn--primary { background: var(--color-orange); color: var(--color-white); }
.btn--primary:hover { background: #ff6b18; }

.btn--ghost {
  border-color: rgba(192, 192, 192, 0.45);
  background: rgba(10, 31, 60, 0.35);
  color: var(--color-white);
}
.btn--ghost:hover { border-color: var(--color-green); color: var(--color-green); }

/* ---------- 筛选标签 ---------- */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  border: 1px solid rgba(192, 192, 192, 0.32);
  background: rgba(10, 31, 60, 0.5);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: var(--color-silver);
  transition: border-color 0.2s, color 0.2s, background-color 0.2s;
}

.chip:hover { border-color: var(--color-orange); color: var(--color-white); }

.chip[data-active="true"] {
  border-color: var(--color-green);
  background: var(--color-green);
  font-weight: 700;
  color: var(--color-navy);
}

/* ---------- 切角面板 ---------- */
.panel {
  position: relative;
  padding: var(--space-md);
  background: linear-gradient(140deg, rgba(18, 44, 79, 0.7), rgba(10, 31, 60, 0.92));
  border: 1px solid rgba(192, 192, 192, 0.18);
  border-left: 3px solid var(--color-orange);
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 18px 100%, 0 calc(100% - 18px));
}

.panel::after {
  content: "";
  position: absolute;
  right: 18px;
  bottom: 18px;
  width: 20px;
  height: 20px;
  background: linear-gradient(135deg, transparent 48%, var(--color-green) 48%);
  opacity: 0.7;
  pointer-events: none;
}

/* ---------- 数据卡片行 ---------- */
.table-card {
  border: 1px solid rgba(192, 192, 192, 0.22);
  background: rgba(11, 11, 15, 0.55);
}

.table-card__row {
  display: grid;
  grid-template-columns: 1fr auto auto;
  gap: 14px;
  align-items: center;
  padding: 14px 18px;
  border-bottom: 1px solid rgba(192, 192, 192, 0.14);
}

.table-card__row:last-child { border-bottom: 0; }
.table-card__name { font-weight: 600; color: var(--color-white); }
.table-card__value { font-family: var(--font-head); font-weight: 700; font-size: 18px; color: var(--color-orange); }
.table-card__meta { font-size: 12px; letter-spacing: 0.04em; color: var(--color-silver); }

/* ---------- 面包屑 ---------- */
.breadcrumbs {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  letter-spacing: 0.03em;
  color: var(--color-silver);
}

.breadcrumbs a { font-weight: 600; color: var(--color-white); transition: color 0.2s; }
.breadcrumbs a:hover { color: var(--color-green); }
.breadcrumbs__sep { font-weight: 700; color: var(--color-orange); }

/* ---------- 滚动显现 ---------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
  will-change: opacity, transform;
}

[data-reveal][data-visible="true"] {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- 跳过链接 ---------- */
.skip-link {
  position: fixed;
  top: -100px;
  left: 14px;
  z-index: 3000;
  padding: 12px 20px;
  background: var(--color-orange);
  color: var(--color-white);
  font-weight: 700;
  font-size: 14px;
  letter-spacing: 0.04em;
  transition: top 0.25s ease;
}

.skip-link:focus { top: 14px; }

/* ---------- 滚动进度条 ---------- */
.site-progress {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 1500;
  width: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-orange) 0%, var(--color-gold) 35%, var(--color-green) 100%);
  box-shadow: 0 0 10px rgba(255, 90, 0, 0.4);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.site-progress[data-visible="true"] { opacity: 1; }

/* ---------- 头部 ---------- */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--header-h);
  background: transparent;
  border-bottom: 1px solid transparent;
  transition: background-color 0.4s ease, border-color 0.4s ease, box-shadow 0.4s ease;
}

.site-header::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  background: linear-gradient(90deg, rgba(255, 90, 0, 0.14), transparent 32%);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s ease;
}

.site-header[data-scrolled="true"] {
  background-color: rgba(10, 31, 60, 0.94);
  border-bottom-color: rgba(255, 90, 0, 0.55);
  box-shadow: 0 6px 28px rgba(0, 0, 0, 0.3);
}

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

.site-header__inner {
  position: relative;
  z-index: 2;
  max-width: 1320px;
  height: 100%;
  margin-inline: auto;
  padding-inline: var(--space-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.site-header__brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}

.site-header__brand-mark {
  width: 7px;
  height: 38px;
  background: linear-gradient(180deg, var(--color-orange) 0%, var(--color-gold) 50%, var(--color-green) 100%);
  transform: skewX(-12deg);
  box-shadow: 0 0 14px rgba(255, 90, 0, 0.35);
}

.site-header__brand-text {
  display: flex;
  flex-direction: column;
  gap: 3px;
  line-height: 1;
}

.site-header__logo {
  font-size: 24px;
  font-weight: 900;
  line-height: 1;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-white);
}

.site-header__logo-sub {
  font-size: 9px;
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  color: var(--color-silver);
}

.site-header__actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* 桌面端会员按钮 */
.site-header__member {
  display: none;
  align-items: center;
  padding: 10px 20px;
  background: var(--color-orange);
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.08em;
  color: var(--color-white);
  transform: skewX(-8deg);
  transition: background-color 0.25s, box-shadow 0.25s, transform 0.15s;
}

.site-header__member::before {
  content: "";
  display: inline-block;
  width: 7px;
  height: 7px;
  margin-right: 8px;
  background: var(--color-green);
  box-shadow: 0 0 8px var(--color-green);
}

.site-header__member:hover {
  background: #ff6b1f;
  box-shadow: 0 4px 18px rgba(255, 90, 0, 0.45);
  transform: skewX(-8deg) translateY(-1px);
}

/* 移动导航按钮 */
.site-header__toggle {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 6px;
  width: 44px;
  height: 44px;
  padding: 0 10px;
  border: 1px solid rgba(192, 192, 192, 0.35);
  transition: border-color 0.2s;
}

.site-header__toggle:hover { border-color: var(--color-orange); }

.site-header__toggle-line {
  width: 22px;
  height: 2px;
  background: var(--color-white);
  transform: skewX(-18deg);
  transition: width 0.2s;
}

.site-header__toggle:hover .site-header__toggle-line { width: 18px; }

/* 移动导航面板 */
.site-header__nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1100;
  max-height: 100dvh;
  overflow-y: auto;
  padding: calc(var(--header-h) + 18px) var(--space-md) 32px;
  background: linear-gradient(160deg, var(--color-navy) 0%, #081731 100%);
  border-bottom: 3px solid var(--color-orange);
  visibility: hidden;
  transform: translateY(-102%);
  transition: transform 0.38s cubic-bezier(0.22, 1, 0.36, 1), visibility 0s linear 0.38s;
}

.site-header__nav[data-open="true"] {
  visibility: visible;
  transform: translateY(0);
  transition: transform 0.38s cubic-bezier(0.22, 1, 0.36, 1), visibility 0s;
}

.site-header__nav-head {
  position: absolute;
  top: calc(var(--header-h) / 2 - 22px);
  left: var(--space-md);
  right: var(--space-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-header__nav-title {
  font-family: var(--font-head);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--color-silver);
}

.site-header__nav-close {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: rgba(255, 90, 0, 0.18);
  font-size: 20px;
  line-height: 1;
  color: var(--color-white);
  transition: background-color 0.2s, color 0.2s;
}

.site-header__nav-close:hover { background: var(--color-orange); color: var(--color-white); }

.site-header__menu {
  display: grid;
  gap: 2px;
}

.site-header__menu-item { margin: 0; }

.site-header__menu-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 4px;
  border-bottom: 1px solid rgba(192, 192, 192, 0.14);
  font-family: var(--font-head);
  font-size: 20px;
  font-weight: 800;
  letter-spacing: 0.05em;
  color: var(--color-white);
  transition: color 0.2s, padding-left 0.2s;
}

.site-header__menu-link::after {
  content: "→";
  font-size: 18px;
  color: var(--color-orange);
  opacity: 0;
  transform: translateX(-6px);
  transition: opacity 0.2s, transform 0.2s;
}

.site-header__menu-link:hover { padding-left: 8px; color: var(--color-green); }
.site-header__menu-link:hover::after { opacity: 1; transform: translateX(0); }

.site-header__menu-link[aria-current="page"] {
  border-bottom-color: var(--color-green);
  color: var(--color-green);
}

/* 移动端会员入口 */
.site-header__nav-member {
  display: flex;
  flex-direction: column;
  gap: 4px;
  margin-top: 22px;
  padding: 16px 18px;
  background: linear-gradient(100deg, rgba(255, 90, 0, 0.92), rgba(255, 184, 0, 0.88));
  border-left: 4px solid var(--color-green);
  color: var(--color-white);
}

.site-header__nav-member-label {
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 18px;
  letter-spacing: 0.12em;
}

.site-header__nav-member-hint { font-size: 12px; font-weight: 500; color: rgba(255, 255, 255, 0.82); }

/* 桌面端导航 */
@media (min-width: 960px) {
  .site-header__nav {
    position: static;
    width: auto;
    max-height: none;
    overflow: visible;
    padding: 0;
    background: transparent;
    border-bottom: 0;
    visibility: visible;
    transform: none;
    transition: none;
  }

  .site-header__nav[data-open="true"] { transform: none; }
  .site-header__nav-head { display: none; }
  .site-header__nav-member { display: none; }

  .site-header__menu {
    display: flex;
    align-items: center;
    gap: 6px;
  }

  .site-header__menu-link {
    display: block;
    position: relative;
    padding: 10px 14px;
    border-bottom: 0;
    font-family: var(--font-body);
    font-size: 15px;
    font-weight: 600;
    letter-spacing: 0.03em;
    white-space: nowrap;
    color: rgba(242, 244, 248, 0.82);
  }

  .site-header__menu-link::after {
    content: "";
    position: absolute;
    left: 14px;
    right: 14px;
    bottom: 4px;
    height: 3px;
    background: var(--color-orange);
    opacity: 1;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.25s ease;
  }

  .site-header__menu-link:hover,
  .site-header__menu-link[aria-current="page"] { color: var(--color-white); }

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

  .site-header__menu-link[aria-current="page"] { font-weight: 700; }
  .site-header__member { display: inline-flex; }
  .site-header__toggle { display: none; }
}

/* ---------- 页脚 ---------- */
.site-footer {
  position: relative;
  overflow: hidden;
  margin-top: auto;
  background: var(--color-navy);
  color: var(--color-white);
}

.site-footer__tape {
  position: relative;
  height: 6px;
  overflow: hidden;
  background: var(--color-navy);
}

.site-footer__tape::before {
  content: "";
  position: absolute;
  top: 0;
  left: -6%;
  width: 112%;
  height: 100%;
  background: repeating-linear-gradient(
    90deg,
    var(--color-orange) 0 22px,
    var(--color-navy-light) 22px 32px,
    var(--color-white) 32px 46px,
    var(--color-navy-light) 46px 56px
  );
  transform: skewX(-18deg);
}

.site-footer__inner {
  max-width: 1320px;
  margin-inline: auto;
  padding: 56px 24px 30px;
}

.site-footer__top {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1.2fr;
  gap: 48px 40px;
}

.site-footer__brand { max-width: 430px; }

.site-footer__logo {
  font-family: var(--font-head);
  font-size: 30px;
  font-weight: 900;
  line-height: 1;
  letter-spacing: 0.03em;
  color: var(--color-white);
  transition: color 0.2s;
}

.site-footer__logo:hover { color: var(--color-green); }

.site-footer__logo span {
  display: block;
  margin-top: 6px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.36em;
  color: var(--color-silver);
}

.site-footer__slogan {
  margin-top: 16px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--color-silver);
}

.site-footer__trust {
  margin-top: 20px;
  padding: 14px 16px;
  border-left: 3px solid var(--color-green);
  background: rgba(11, 11, 15, 0.35);
  font-size: 13px;
  line-height: 1.8;
  color: var(--color-silver);
}

.site-footer__nav { min-width: 0; }

.site-footer__heading {
  margin-bottom: 18px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--color-gold);
}

.site-footer__links li a {
  position: relative;
  display: inline-block;
  padding: 5px 0;
  font-size: 15px;
  line-height: 1.6;
  color: rgba(242, 244, 248, 0.78);
  transition: color 0.2s, padding-left 0.2s;
}

.site-footer__links li a::before {
  content: "/";
  position: absolute;
  left: -14px;
  font-weight: 700;
  color: var(--color-orange);
  opacity: 0;
  transition: opacity 0.2s, left 0.2s;
}

.site-footer__links li a:hover { padding-left: 6px; color: var(--color-green); }
.site-footer__links li a:hover::before { left: -6px; opacity: 1; }

.site-footer__contact { min-width: 0; }

.site-footer__contact-list {
  display: grid;
  gap: 14px;
}

.site-footer__contact-list li {
  display: grid;
  grid-template-columns: 64px 1fr;
  gap: 12px;
  font-size: 14px;
}

.site-footer__contact-label {
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--color-gold);
}

.site-footer__contact-value {
  word-break: break-word;
  color: rgba(242, 244, 248, 0.85);
}

.site-footer__bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 36px;
  margin-top: 44px;
  padding-top: 20px;
  border-top: 1px solid rgba(192, 192, 192, 0.2);
  font-size: 13px;
  color: var(--color-silver);
}

.site-footer__copyright { margin: 0; }

.site-footer__legal {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  margin: 0;
}

.site-footer__legal a { color: var(--color-silver); transition: color 0.2s; }
.site-footer__legal a:hover { color: var(--color-orange); }

.site-footer__icp {
  margin-left: auto;
  letter-spacing: 0.06em;
}

/* 页脚响应式 */
@media (max-width: 959px) {
  .site-footer__top { grid-template-columns: 1fr 1fr; }
  .site-footer__brand { grid-column: 1 / -1; max-width: 520px; }
}

@media (max-width: 639px) {
  .site-footer__top { grid-template-columns: 1fr; gap: 36px; }
  .site-footer__brand { grid-column: auto; }
  .site-footer__contact-list li { grid-template-columns: 1fr; gap: 2px; }
  .site-footer__bottom { gap: 10px 20px; }
  .site-footer__icp { margin-left: 0; }
}

/* ---------- 减少动态偏好 ---------- */
@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;
  }

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