/* ============================================================
   赢点体育 · /assets/site.css
   01 设计令牌  02 Reset  03 中文排版  04 布局骨架
   05 通用组件  06 刊头  07 页脚  08 响应式  09 动效
   ============================================================ */

/* 01 设计令牌 */
:root {
  --yd-paper: #F6EFE3;
  --yd-ink: #1B1F1C;
  --yd-green: #14503A;
  --yd-green-bright: #2C8C63;
  --yd-orange: #E2552B;
  --yd-slate: #7E8FA0;
  --yd-mist: #D8E4DA;
  --yd-wheat: #F1E2C8;
  --yd-night: #0E1412;
  --yd-cream: #FFFBF3;
  --yd-line: rgba(27, 31, 28, 0.14);
  --yd-line-green: rgba(20, 80, 58, 0.22);
  --yd-ease: cubic-bezier(0.22, 0.61, 0.36, 1);
  --yd-radius: 24px;
  --yd-radius-sm: 16px;
  --yd-shadow: 0 12px 28px rgba(20, 80, 58, 0.14);
  --yd-sans: "Noto Sans SC", "Source Han Sans SC", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", sans-serif;
  --yd-mono: "JetBrains Mono", "IBM Plex Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, "Courier New", monospace;
  --yd-max: 1200px;
  --yd-gutter: clamp(18px, 5vw, 40px);
  --yd-fs-12: 12px;
  --yd-fs-14: 14px;
  --yd-fs-16: 16px;
  --yd-fs-20: 20px;
  --yd-fs-26: 26px;
  --yd-fs-34: 34px;
  --yd-fs-48: 48px;
  --yd-fs-72: 72px;
}

/* 02 Reset */
*, *::before, *::after { box-sizing: border-box; }
html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 168px;
}
body {
  margin: 0;
  background-color: var(--yd-paper);
  background-image: radial-gradient(circle at 1px 1px, rgba(27, 31, 28, 0.05) 1px, transparent 1.8px);
  background-size: 24px 24px;
  color: var(--yd-ink);
  font-family: var(--yd-sans);
  font-size: var(--yd-fs-16);
  font-weight: 400;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}
img, svg, video { max-width: 100%; height: auto; }
button, input, select, textarea { font: inherit; color: inherit; }
[hidden] { display: none !important; }
::selection { background: rgba(226, 85, 43, 0.24); }
:focus-visible {
  outline: 3px solid var(--yd-orange);
  outline-offset: 3px;
  border-radius: 6px;
}

/* 03 中文排版 */
h1, h2, h3, h4 { margin: 0 0 0.55em; font-weight: 900; line-height: 1.12; letter-spacing: -0.01em; }
h1 { font-size: clamp(34px, 5vw, 72px); line-height: 1.04; letter-spacing: -0.02em; }
h2 { font-size: clamp(26px, 3.6vw, 48px); }
h3 { font-size: clamp(20px, 2.2vw, 26px); line-height: 1.28; }
h4 { font-size: var(--yd-fs-20); }
p { margin: 0 0 1em; }
ul, ol { padding-left: 1.25em; }
strong { font-weight: 800; }
a { color: var(--yd-green); text-underline-offset: 3px; text-decoration-thickness: 1px; }
a:hover { color: var(--yd-green-bright); }
hr { border: 0; border-top: 1px solid var(--yd-line-green); margin: 0; }

/* 04 布局骨架 */
.yd-shell {
  width: min(100% - (var(--yd-gutter) * 2), var(--yd-max));
  margin-inline: auto;
}
.yd-section { padding-block: clamp(44px, 7vw, 96px); }
.yd-section--tight { padding-block: clamp(26px, 4vw, 56px); }
.yd-grid {
  display: grid;
  gap: clamp(18px, 3vw, 36px);
  grid-template-columns: repeat(12, minmax(0, 1fr));
}
.yd-grid--cards { grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); }
.yd-split {
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(0, 8fr);
  gap: clamp(20px, 4vw, 56px);
  align-items: start;
}
.yd-stack { display: grid; gap: clamp(14px, 2vw, 24px); align-content: start; }
.yd-slope { clip-path: polygon(0 0, 100% 0, 100% 100%, 0 calc(100% - 3.5vw)); }

/* 05 通用组件 */
.yd-eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 14px;
  font-size: var(--yd-fs-12);
  font-weight: 700;
  letter-spacing: 0.24em;
  color: var(--yd-green);
  text-transform: uppercase;
}
.yd-eyebrow::before {
  content: "";
  flex: none;
  width: 28px;
  height: 3px;
  border-radius: 999px;
  background: var(--yd-orange);
}
.yd-lead { max-width: 34em; font-size: clamp(17px, 1.6vw, 20px); line-height: 1.7; color: #2b332e; }
.yd-prose { max-width: 34em; }
.yd-prose p:last-child { margin-bottom: 0; }
.yd-note { margin: 0; font-size: var(--yd-fs-12); line-height: 1.85; letter-spacing: 0.16em; color: #5d6963; }
.yd-note--vertical {
  writing-mode: vertical-rl;
  text-orientation: mixed;
  letter-spacing: 0.34em;
  max-height: 340px;
}
.yd-chapter { display: block; margin: 0; }
.yd-chapter__num {
  display: block;
  font-family: var(--yd-mono);
  font-size: clamp(56px, 9vw, 112px);
  font-weight: 700;
  line-height: 0.86;
  letter-spacing: -0.04em;
  font-variant-numeric: tabular-nums;
  color: transparent;
  -webkit-text-stroke: 1.5px rgba(20, 80, 58, 0.5);
}
@supports not ((-webkit-text-stroke: 1px red)) {
  .yd-chapter__num { color: rgba(20, 80, 58, 0.26); }
}

.yd-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-family: var(--yd-sans);
  font-size: var(--yd-fs-14);
  font-weight: 700;
  line-height: 1;
  letter-spacing: 0.02em;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.2s var(--yd-ease), background-color 0.2s var(--yd-ease),
    color 0.2s var(--yd-ease), border-color 0.2s var(--yd-ease), box-shadow 0.2s var(--yd-ease);
}
.yd-btn:hover { transform: translateY(-2px); }
.yd-btn--cta { background: var(--yd-orange); color: var(--yd-cream); box-shadow: 0 10px 22px rgba(226, 85, 43, 0.28); }
.yd-btn--cta:hover { background: #c94720; color: var(--yd-cream); }
.yd-btn--ghost { background: transparent; color: var(--yd-green); border-color: rgba(20, 80, 58, 0.42); }
.yd-btn--ghost:hover { background: var(--yd-mist); border-color: var(--yd-green); color: var(--yd-green); }
.yd-btn--solid { background: var(--yd-green); color: var(--yd-cream); }
.yd-btn--solid:hover { background: #0f3f2e; color: var(--yd-cream); }

.yd-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 13px;
  border-radius: 999px;
  background: var(--yd-mist);
  color: var(--yd-green);
  font-size: var(--yd-fs-12);
  font-weight: 700;
  letter-spacing: 0.08em;
  line-height: 1.6;
}
.yd-tag--wheat { background: var(--yd-wheat); color: #5d4212; }
.yd-tag--orange { background: rgba(226, 85, 43, 0.14); color: #a53614; }

.yd-card {
  background: var(--yd-cream);
  border: 1px solid var(--yd-line-green);
  border-radius: var(--yd-radius);
  padding: clamp(20px, 3vw, 32px);
  box-shadow: var(--yd-shadow);
}
.yd-card > :last-child { margin-bottom: 0; }

.yd-num, .yd-price {
  font-family: var(--yd-mono);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
}
.yd-num { font-size: clamp(18px, 1.8vw, 22px); font-weight: 700; }
.yd-price {
  display: block;
  font-size: clamp(34px, 5vw, 64px);
  font-weight: 700;
  line-height: 1;
  color: var(--yd-green);
}

.yd-tablewrap {
  overflow-x: auto;
  border-radius: var(--yd-radius-sm);
  border: 1px solid var(--yd-line-green);
  background: var(--yd-cream);
  -webkit-overflow-scrolling: touch;
}
.yd-table { width: 100%; border-collapse: collapse; font-size: var(--yd-fs-14); min-width: 520px; }
.yd-table th, .yd-table td { padding: 12px 16px; text-align: left; border-bottom: 1px solid var(--yd-line-green); }
.yd-table thead th {
  background: var(--yd-mist);
  color: var(--yd-green);
  font-size: var(--yd-fs-12);
  font-weight: 800;
  letter-spacing: 0.14em;
  white-space: nowrap;
}
.yd-table tbody tr:nth-child(even) { background: rgba(126, 143, 160, 0.08); }
.yd-table tbody tr:last-child td { border-bottom: 0; }
.yd-table td:last-child, .yd-table th:last-child {
  text-align: right;
  font-family: var(--yd-mono);
  font-variant-numeric: tabular-nums;
}

.yd-media {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  border-radius: var(--yd-radius);
  background-color: var(--yd-green);
  background-image: linear-gradient(142deg, var(--yd-green) 0%, #0c3225 58%, var(--yd-night) 100%);
}
.yd-media::before {
  content: "";
  position: absolute;
  inset: 12px;
  border: 1px dashed rgba(255, 251, 243, 0.34);
  border-radius: calc(var(--yd-radius) - 10px);
  pointer-events: none;
  z-index: 1;
}
.yd-media img, .yd-media video { display: block; width: 100%; height: 100%; object-fit: cover; }
.yd-media--wide { aspect-ratio: 16 / 9; }
.yd-media--tall { aspect-ratio: 3 / 4; }
.yd-media--square { aspect-ratio: 1 / 1; }
.yd-media__caption {
  position: absolute;
  left: 18px;
  bottom: 16px;
  z-index: 2;
  margin: 0;
  font-family: var(--yd-mono);
  font-size: var(--yd-fs-12);
  letter-spacing: 0.16em;
  color: rgba(255, 251, 243, 0.86);
}

.yd-crumbs { padding-block: 18px 0; font-size: 13px; color: #5b6660; }
.yd-crumbs ol { display: flex; flex-wrap: wrap; gap: 8px; list-style: none; margin: 0; padding: 0; }
.yd-crumbs li { display: flex; align-items: center; gap: 8px; }
.yd-crumbs li::after { content: "/"; color: var(--yd-slate); }
.yd-crumbs li:last-child::after { content: none; }
.yd-crumbs a { color: var(--yd-green); text-decoration: none; }
.yd-crumbs a:hover { text-decoration: underline; }
.yd-crumbs [aria-current="page"] { color: var(--yd-ink); font-weight: 700; }

.yd-segments__tabs {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 6px;
  padding: 6px;
  border-radius: 999px;
  background: var(--yd-mist);
}
.yd-segments__tab {
  appearance: none;
  border: 0;
  background: transparent;
  color: var(--yd-green);
  font-family: var(--yd-sans);
  font-size: var(--yd-fs-14);
  font-weight: 700;
  padding: 10px 20px;
  border-radius: 999px;
  cursor: pointer;
  transition: background-color 0.2s var(--yd-ease), color 0.2s var(--yd-ease);
}
.yd-segments__tab:hover { background: rgba(255, 251, 243, 0.7); }
.yd-segments__tab[aria-selected="true"] { background: var(--yd-green); color: var(--yd-cream); }
.yd-segments__panel { padding-top: clamp(18px, 3vw, 28px); animation: yd-panel-in 0.3s var(--yd-ease) both; }
.yd-segments__panel[hidden] { display: none !important; }
@keyframes yd-panel-in {
  from { opacity: 0; transform: translateX(24px); }
  to { opacity: 1; transform: none; }
}

.yd-skip {
  position: fixed;
  left: 16px;
  top: -88px;
  z-index: 200;
  padding: 12px 22px;
  border-radius: 999px;
  background: var(--yd-green);
  color: var(--yd-cream);
  font-weight: 700;
  text-decoration: none;
  transition: top 0.2s var(--yd-ease);
}
.yd-skip:focus { top: 16px; color: var(--yd-cream); }

/* 06 刊头 */
.yd-header {
  position: sticky;
  top: 0;
  z-index: 60;
  background: var(--yd-paper);
  border-bottom: 1px solid var(--yd-line);
}
.yd-header__stripe {
  height: 6px;
  background: linear-gradient(90deg, var(--yd-green) 0%, var(--yd-green) 64%, var(--yd-orange) 64%, var(--yd-orange) 100%);
}
.yd-header__masthead {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 16px;
  padding-block: 16px;
  transition: padding 0.24s var(--yd-ease);
}
.yd-header__line {
  grid-column: 1;
  justify-self: start;
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  max-width: 15em;
  font-size: var(--yd-fs-12);
  letter-spacing: 0.28em;
  line-height: 1.9;
  color: var(--yd-slate);
  transition: opacity 0.24s var(--yd-ease), visibility 0.24s var(--yd-ease);
}
.yd-header__line::before {
  content: "";
  flex: none;
  width: 3px;
  height: 26px;
  border-radius: 999px;
  background: var(--yd-green-bright);
}
.yd-brand {
  grid-column: 2;
  justify-self: center;
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--yd-green);
}
.yd-brand:hover { color: var(--yd-green); }
.yd-brand__mark {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 999px;
  background: var(--yd-green);
  color: var(--yd-cream);
  font-size: 14px;
  font-weight: 900;
  line-height: 1;
  transition: width 0.24s var(--yd-ease), height 0.24s var(--yd-ease), font-size 0.24s var(--yd-ease);
}
.yd-brand__name {
  font-size: clamp(24px, 3.2vw, 38px);
  font-weight: 900;
  letter-spacing: 0.1em;
  line-height: 1;
  transition: font-size 0.24s var(--yd-ease);
}
.yd-header__actions {
  grid-column: 3;
  justify-self: end;
  display: flex;
  align-items: center;
  gap: 10px;
}
.yd-navtoggle {
  display: none;
  align-items: center;
  gap: 9px;
  padding: 10px 16px;
  border-radius: 999px;
  border: 1px solid rgba(20, 80, 58, 0.42);
  background: transparent;
  color: var(--yd-green);
  font-size: var(--yd-fs-14);
  font-weight: 700;
  cursor: pointer;
}
.yd-navtoggle__bars { display: grid; gap: 4px; width: 18px; }
.yd-navtoggle__bars span {
  display: block;
  height: 2px;
  border-radius: 2px;
  background: currentColor;
  transition: transform 0.24s var(--yd-ease), opacity 0.24s var(--yd-ease);
}
.yd-navtoggle[aria-expanded="true"] .yd-navtoggle__bars span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.yd-navtoggle[aria-expanded="true"] .yd-navtoggle__bars span:nth-child(2) { opacity: 0; }
.yd-navtoggle[aria-expanded="true"] .yd-navtoggle__bars span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }
.yd-navtoggle__text { letter-spacing: 0.1em; }

.yd-nav { border-top: 1px solid rgba(27, 31, 28, 0.08); }
.yd-nav__list {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: clamp(12px, 2.6vw, 34px);
  margin: 0;
  padding: 10px 0;
  list-style: none;
}
.yd-nav__link {
  position: relative;
  display: inline-block;
  padding: 7px 2px;
  color: var(--yd-ink);
  font-size: 15px;
  font-weight: 500;
  letter-spacing: 0.02em;
  text-decoration: none;
  transition: color 0.2s var(--yd-ease);
}
.yd-nav__link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  border-radius: 999px;
  background: var(--yd-orange);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.28s var(--yd-ease);
}
.yd-nav__link:hover { color: var(--yd-green); }
.yd-nav__link:hover::after,
.yd-nav__link:focus-visible::after { transform: scaleX(1); }
.yd-nav__link[aria-current="page"] { color: var(--yd-green); font-weight: 800; }
.yd-nav__link[aria-current="page"]::after { transform: scaleX(1); }
.yd-nav__foot { display: none; }

.yd-header__rail { background: var(--yd-green); color: var(--yd-cream); }
.yd-header__rail-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding-block: 6px;
  font-family: var(--yd-mono);
  font-size: 11px;
  letter-spacing: 0.18em;
  line-height: 1.6;
}
.yd-header__chapter { color: var(--yd-cream); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.yd-header__refresh { color: rgba(255, 251, 243, 0.72); white-space: nowrap; }
.yd-header__refresh::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  margin-right: 8px;
  border-radius: 999px;
  background: var(--yd-orange);
  vertical-align: 1px;
}
.yd-progress { height: 3px; background: rgba(20, 80, 58, 0.16); }
.yd-progress__bar {
  display: block;
  height: 100%;
  width: 100%;
  background: var(--yd-orange);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.12s linear;
}
.yd-header[data-condensed="true"] .yd-header__masthead { padding-block: 8px; }
.yd-header[data-condensed="true"] .yd-header__line { opacity: 0; visibility: hidden; }
.yd-header[data-condensed="true"] .yd-brand__name { font-size: clamp(20px, 2.4vw, 26px); }
.yd-header[data-condensed="true"] .yd-brand__mark { width: 26px; height: 26px; font-size: 12px; }

/* 07 页脚 */
.yd-footer {
  position: relative;
  margin-top: clamp(56px, 9vw, 120px);
  padding-top: calc(clamp(30px, 4.5vw, 64px) + clamp(44px, 6vw, 84px));
  padding-bottom: clamp(22px, 3vw, 36px);
  background: var(--yd-night);
  color: rgba(255, 251, 243, 0.82);
  clip-path: polygon(0 clamp(30px, 4.5vw, 64px), 100% 0, 100% 100%, 0 100%);
}
.yd-footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.4fr;
  gap: clamp(24px, 4vw, 48px);
}
.yd-footer__logo {
  display: inline-block;
  font-size: clamp(24px, 2.6vw, 30px);
  font-weight: 900;
  letter-spacing: 0.12em;
  color: var(--yd-cream);
  text-decoration: none;
}
.yd-footer__logo:hover { color: var(--yd-cream); }
.yd-footer__tagline {
  margin: 14px 0 0;
  max-width: 20em;
  font-size: var(--yd-fs-14);
  line-height: 1.85;
  color: rgba(255, 251, 243, 0.66);
}
.yd-footer__title {
  margin: 0 0 16px;
  font-size: var(--yd-fs-12);
  font-weight: 800;
  letter-spacing: 0.24em;
  line-height: 1.6;
  color: var(--yd-orange);
  text-transform: uppercase;
}
.yd-footer__links { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.yd-footer__links li { font-size: var(--yd-fs-14); line-height: 1.7; color: rgba(255, 251, 243, 0.78); }
.yd-footer__links a { color: rgba(255, 251, 243, 0.78); text-decoration: none; border-bottom: 1px solid transparent; transition: color 0.2s var(--yd-ease), border-color 0.2s var(--yd-ease); }
.yd-footer__links a:hover { color: var(--yd-cream); border-bottom-color: var(--yd-orange); }
.yd-footer__note { margin: 14px 0 0; font-size: var(--yd-fs-12); line-height: 1.8; color: rgba(255, 251, 243, 0.5); }
.yd-footer__returns {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
  margin-top: clamp(32px, 5vw, 56px);
  padding-top: clamp(24px, 4vw, 40px);
  border-top: 1px solid rgba(255, 251, 243, 0.14);
}
.yd-return {
  position: relative;
  display: grid;
  gap: 6px;
  padding: 20px 58px 20px 22px;
  border-radius: 18px;
  border: 1px solid rgba(255, 251, 243, 0.16);
  background: rgba(255, 251, 243, 0.05);
  color: inherit;
  text-decoration: none;
  transition: transform 0.24s var(--yd-ease), background-color 0.24s var(--yd-ease), border-color 0.24s var(--yd-ease);
}
.yd-return:hover {
  transform: translateY(-2px);
  background: rgba(255, 251, 243, 0.1);
  border-color: rgba(226, 85, 43, 0.6);
  color: inherit;
}
.yd-return__label { font-size: var(--yd-fs-16); font-weight: 800; letter-spacing: 0.04em; color: var(--yd-cream); }
.yd-return__desc { font-size: 13px; line-height: 1.75; color: rgba(255, 251, 243, 0.64); }
.yd-return__arrow {
  position: absolute;
  right: 20px;
  top: 20px;
  font-family: var(--yd-mono);
  font-size: var(--yd-fs-16);
  color: var(--yd-orange);
}
.yd-footer__legal {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px 22px;
  margin-top: clamp(28px, 4vw, 44px);
  padding-top: 20px;
  border-top: 1px solid rgba(255, 251, 243, 0.12);
  font-size: var(--yd-fs-12);
  line-height: 1.8;
  color: rgba(255, 251, 243, 0.52);
}
.yd-footer__copy { margin: 0; }
.yd-footer__icp { margin: 0; font-family: var(--yd-mono); letter-spacing: 0.04em; }
.yd-footer__legallinks { display: flex; flex-wrap: wrap; gap: 18px; list-style: none; margin: 0 0 0 auto; padding: 0; }
.yd-footer__legallinks a { color: rgba(255, 251, 243, 0.76); text-decoration: none; }
.yd-footer__legallinks a:hover { color: var(--yd-cream); text-decoration: underline; }

/* 08 响应式 */
@media (max-width: 1024px) {
  .yd-footer__grid { grid-template-columns: 1.3fr 1fr 1fr; }
  .yd-footer__contact { grid-column: 1 / -1; }
}
@media (max-width: 960px) {
  .yd-footer__grid { gap: 28px 32px; }
}
@media (max-width: 900px) {
  .yd-split { grid-template-columns: 1fr; }
  .yd-note--vertical { writing-mode: horizontal-tb; max-height: none; letter-spacing: 0.16em; }
  html { scroll-padding-top: 120px; }
}
@media (max-width: 860px) {
  .yd-header__masthead {
    grid-template-columns: 1fr auto;
    gap: 10px;
    padding-block: 10px;
  }
  .yd-header__line { display: none; }
  .yd-brand { grid-column: 1; justify-self: start; gap: 9px; }
  .yd-brand__name { font-size: 23px; letter-spacing: 0.08em; }
  .yd-brand__mark { width: 28px; height: 28px; font-size: 12px; }
  .yd-header__actions { display: none; }
  .yd-navtoggle { display: inline-flex; grid-column: 2; justify-self: end; }
  .yd-nav {
    position: absolute;
    left: 0;
    right: 0;
    top: 100%;
    display: none;
    max-height: calc(100vh - 96px);
    overflow-y: auto;
    padding: 6px var(--yd-gutter) 22px;
    background: var(--yd-paper);
    border-top: 1px solid var(--yd-line-green);
    border-bottom: 1px solid var(--yd-line-green);
    box-shadow: 0 20px 34px rgba(20, 80, 58, 0.16);
  }
  .yd-nav[data-open="true"] { display: block; }
  .yd-nav__list { flex-direction: column; align-items: stretch; gap: 0; padding: 0; }
  .yd-nav__link {
    display: block;
    padding: 14px 2px;
    font-size: 17px;
    border-bottom: 1px dashed rgba(20, 80, 58, 0.24);
  }
  .yd-nav__link::after { display: none; }
  .yd-nav__link[aria-current="page"] { color: var(--yd-green); }
  .yd-nav__link[aria-current="page"]::before {
    content: "";
    display: inline-block;
    width: 8px;
    height: 8px;
    margin-right: 10px;
    border-radius: 999px;
    background: var(--yd-orange);
    vertical-align: 2px;
  }
  .yd-nav__foot { display: flex; flex-wrap: wrap; gap: 10px; padding-top: 18px; }
  .yd-nav__foot .yd-btn { flex: 1 1 160px; }
  .yd-header__rail-inner { font-size: 10px; letter-spacing: 0.12em; }
  .yd-header__refresh { display: none; }
}
@media (max-width: 620px) {
  .yd-footer__grid { grid-template-columns: 1fr; gap: 26px; }
  .yd-footer__contact { grid-column: auto; }
  .yd-footer__legal { gap: 8px 16px; }
  .yd-footer__legallinks { margin-left: 0; }
  .yd-segments__tabs { border-radius: 18px; width: 100%; }
  .yd-segments__tab { flex: 1 1 auto; padding: 10px 14px; }
}

/* 09 动效与无动效偏好 */
html.yd-js [data-reveal] {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.32s var(--yd-ease), transform 0.32s var(--yd-ease);
}
html.yd-js [data-reveal][data-revealed="true"] { opacity: 1; transform: none; }

@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;
  }
  .yd-btn:hover, .yd-return:hover { transform: none; }
  .yd-progress__bar { transition: none; }
}