/* ==========================================
   万利站 · Site Kit 共享样式
   ========================================== */

/* ---------- 设计变量 ---------- */
:root {
  --deep: #0A1128;
  --mid: #162352;
  --bright: #2A3F8F;
  --orange: #FF6B35;
  --yellow: #FFCA28;
  --cloud: #F4F7FB;
  --ink: #233040;
  --mist: #8A94A6;
  --rail-w: 17.5rem;
  --bar-h: 4rem;
  --shadow-hard: 8px 8px 0 rgba(255, 107, 53, 0.28);
  --shadow-soft: 0 20px 45px rgba(3, 8, 26, 0.45);
  --ease: cubic-bezier(0.2, 0.8, 0.2, 1);
}

/* ---------- Reset 与基础 ---------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

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

body {
  margin: 0;
  min-height: 100vh;
  overflow-x: hidden;
  background: var(--deep);
  color: var(--cloud);
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif;
  font-size: 1rem;
  line-height: 1.7;
  padding-top: var(--bar-h);
}

h1, h2, h3, h4 {
  font-family: "SF Pro Display", "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
  line-height: 1.15;
  letter-spacing: -0.01em;
  font-weight: 800;
}

a {
  color: inherit;
  text-decoration: none;
}

ul, ol {
  list-style: none;
}

button {
  font: inherit;
  cursor: pointer;
  background: none;
  border: 0;
  color: inherit;
}

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

[hidden] {
  display: none !important;
}

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

/* ---------- 焦点与无障碍 ---------- */
:focus-visible {
  outline: 3px solid var(--orange);
  outline-offset: 3px;
}

.wl-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;
}

.wl-skip {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: 300;
  padding: 0.6rem 1rem;
  background: var(--orange);
  color: var(--deep);
  font-weight: 800;
  border-radius: 2px;
  box-shadow: 4px 4px 0 rgba(255, 202, 40, 0.5);
  transform: translateY(-180%);
  transition: transform 0.2s var(--ease);
}

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

/* ---------- 通用排版件 ---------- */
.wl-display {
  font-family: "SF Pro Display", "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: clamp(2.75rem, 7vw, 5.25rem);
  font-weight: 200;
  line-height: 0.95;
  letter-spacing: -0.035em;
  color: var(--cloud);
}

.wl-display strong {
  display: block;
  font-weight: 800;
  color: var(--yellow);
}

.wl-link {
  color: var(--bright);
  font-weight: 700;
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
  transition: color 0.2s var(--ease);
}

.wl-link:hover {
  color: var(--orange);
}

.wl-link--on-dark {
  color: var(--yellow);
}

.wl-link--on-dark:hover {
  color: var(--orange);
}

/* ---------- 按钮 ---------- */
.wl-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.8rem 1.4rem;
  font-size: 0.95rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  color: var(--deep);
  background: var(--orange);
  border: 2px solid var(--deep);
  box-shadow: 5px 5px 0 rgba(255, 107, 53, 0.32);
  transition: transform 0.2s var(--ease), box-shadow 0.2s var(--ease), background 0.2s var(--ease), color 0.2s var(--ease);
}

.wl-btn:hover {
  background: var(--yellow);
  color: var(--deep);
  transform: translate(-2px, -2px);
  box-shadow: 8px 8px 0 rgba(255, 107, 53, 0.38);
}

.wl-btn--ghost {
  background: transparent;
  color: var(--cloud);
  border-color: var(--cloud);
  box-shadow: 5px 5px 0 rgba(244, 247, 251, 0.14);
}

.wl-btn--ghost:hover {
  background: rgba(244, 247, 251, 0.12);
  color: var(--cloud);
}

.wl-btn--small {
  padding: 0.5rem 0.9rem;
  font-size: 0.85rem;
}

/* ---------- 面包屑 ---------- */
.wl-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: var(--mist);
}

.wl-breadcrumb a {
  color: var(--cloud);
  font-weight: 600;
  transition: color 0.2s var(--ease);
}

.wl-breadcrumb a:hover {
  color: var(--orange);
}

.wl-breadcrumb__sep {
  color: var(--orange);
  font-weight: 800;
}

.wl-breadcrumb__current {
  color: var(--yellow);
  font-weight: 700;
}

/* ---------- 正文容器与内容带 ---------- */
.wl-wrap {
  width: min(100%, 76rem);
  margin-inline: auto;
  padding-inline: clamp(1rem, 3vw, 2.25rem);
}

.wl-band {
  padding: clamp(2rem, 6vw, 5rem) 0;
  background: var(--cloud);
  color: var(--ink);
  border-top: 2px solid var(--ink);
  border-bottom: 2px solid var(--ink);
}

.wl-band--dark {
  background: var(--mid);
  color: var(--cloud);
  border-color: var(--bright);
}

/* ---------- 章节头 ---------- */
.wl-sec {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 0.5rem 1.25rem;
  align-items: end;
  margin-bottom: 2rem;
}

.wl-sec__num {
  grid-row: span 2;
  font-family: "SF Pro Display", "Helvetica Neue", Arial, "PingFang SC", "Microsoft YaHei", sans-serif;
  font-size: clamp(3.5rem, 8vw, 6.5rem);
  font-weight: 200;
  line-height: 0.8;
  letter-spacing: -0.04em;
  color: var(--orange);
}

.wl-sec__kicker {
  grid-column: 2;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--yellow);
}

.wl-sec__title {
  grid-column: 2;
  font-size: clamp(1.5rem, 3vw, 2.5rem);
  line-height: 1.12;
  color: var(--cloud);
}

.wl-sec__sub {
  grid-column: 1 / -1;
  max-width: 42rem;
  margin-top: -0.5rem;
  font-size: 0.95rem;
  color: var(--mist);
}

.wl-sec--light .wl-sec__kicker {
  color: var(--bright);
}

.wl-sec--light .wl-sec__title {
  color: var(--ink);
}

.wl-sec--light .wl-sec__sub {
  color: var(--ink);
}

/* ---------- 网格 ---------- */
.wl-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 1.25rem;
}

.wl-col-1 { grid-column: span 1; }
.wl-col-2 { grid-column: span 2; }
.wl-col-3 { grid-column: span 3; }
.wl-col-4 { grid-column: span 4; }
.wl-col-5 { grid-column: span 5; }
.wl-col-6 { grid-column: span 6; }
.wl-col-7 { grid-column: span 7; }
.wl-col-8 { grid-column: span 8; }
.wl-col-9 { grid-column: span 9; }
.wl-col-10 { grid-column: span 10; }
.wl-col-11 { grid-column: span 11; }
.wl-col-12 { grid-column: span 12; }

/* ---------- 研究板卡片 ---------- */
.wl-panel {
  position: relative;
  padding: clamp(1.25rem, 2.4vw, 2rem);
  background: var(--cloud);
  color: var(--ink);
  border: 2px solid var(--ink);
  box-shadow: var(--shadow-hard);
}

.wl-panel--dark {
  background: var(--mid);
  color: var(--cloud);
  border-color: var(--bright);
  box-shadow: 8px 8px 0 rgba(255, 107, 53, 0.32);
}

.wl-panel--yellow {
  background: var(--yellow);
  border-color: var(--deep);
}

.wl-panel--flat {
  box-shadow: none;
  border-width: 1.5px;
}

.wl-panel__h {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.9rem;
  font-size: 1.05rem;
  letter-spacing: 0.04em;
}

.wl-panel__h::before {
  content: "";
  display: block;
  width: 0.7rem;
  height: 0.7rem;
  flex-shrink: 0;
  background: var(--orange);
  border: 2px solid currentColor;
}

.wl-panel p + p {
  margin-top: 0.7rem;
}

.wl-panel a {
  color: var(--bright);
  font-weight: 700;
}

.wl-panel a:hover {
  color: var(--orange);
}

.wl-panel--dark a {
  color: var(--yellow);
}

/* ---------- 分段切换 ---------- */
.wl-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  padding-bottom: 0.75rem;
  border-bottom: 2px solid var(--bright);
}

.wl-tabs__btn {
  padding: 0.5rem 1rem;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--cloud);
  background: rgba(244, 247, 251, 0.06);
  border: 2px solid transparent;
  transition: background 0.2s var(--ease), border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.wl-tabs__btn:hover {
  border-color: var(--yellow);
}

.wl-tabs__btn.is-active,
.wl-tabs__btn[aria-pressed="true"] {
  background: var(--orange);
  color: var(--deep);
  border-color: var(--yellow);
}

.wl-tabpanel {
  animation: fadeSlide 0.3s var(--ease);
}

@keyframes fadeSlide {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

/* ---------- 标签条 ---------- */
.wl-chip {
  display: inline-flex;
  align-items: center;
  padding: 0.28rem 0.6rem;
  font-size: 0.72rem;
  font-weight: 700;
  line-height: 1.5;
  letter-spacing: 0.05em;
  color: var(--yellow);
  background: rgba(255, 202, 40, 0.08);
  border: 1.5px solid rgba(255, 202, 40, 0.5);
  transition: background 0.2s var(--ease), color 0.2s var(--ease), transform 0.2s var(--ease), border-color 0.2s var(--ease);
}

.wl-chip--link:hover {
  background: var(--yellow);
  border-color: var(--yellow);
  color: var(--deep);
  transform: translateY(-2px);
}

.wl-chip--ink {
  color: var(--ink);
  background: var(--cloud);
  border-color: rgba(35, 48, 64, 0.6);
}

.wl-chip--ink:hover {
  background: var(--ink);
  color: var(--cloud);
}

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

.wl-chip--orange:hover {
  background: var(--orange);
  color: var(--cloud);
}

/* ---------- 图片与占位容器 ---------- */
.wl-figure {
  position: relative;
  display: block;
  min-height: 11rem;
  overflow: hidden;
  border: 2px solid var(--ink);
  background:
    linear-gradient(135deg, rgba(42, 63, 143, 0.5) 0 10%, transparent 10% 45%),
    repeating-linear-gradient(45deg, rgba(244, 247, 251, 0.08) 0 2px, transparent 2px 14px),
    linear-gradient(145deg, var(--mid), var(--deep));
}

.wl-figure--placeholder::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: 0;
  border-style: solid;
  border-width: 0 0 1.25rem 1.25rem;
  border-color: transparent transparent var(--orange) transparent;
}

.wl-figure__caption {
  position: absolute;
  left: 0;
  bottom: 0;
  margin: 0;
  padding: 0.4rem 0.75rem;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--deep);
  background: var(--yellow);
  border-top: 2px solid var(--ink);
  border-right: 2px solid var(--ink);
}

.wl-img {
  display: block;
  width: 100%;
  height: auto;
  background: var(--mid);
  border: 2px solid var(--ink);
}

.wl-img--cover {
  aspect-ratio: 16 / 10;
  object-fit: cover;
}

.wl-img--portrait {
  aspect-ratio: 3 / 4;
  object-fit: cover;
}

/* ---------- 滚动显现 ---------- */
.wl-reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}

.wl-reveal.is-in {
  opacity: 1;
  transform: none;
}

.wl-reveal[data-delay="1"] {
  transition-delay: 0.08s;
}

.wl-reveal[data-delay="2"] {
  transition-delay: 0.16s;
}

.wl-reveal[data-delay="3"] {
  transition-delay: 0.24s;
}

/* ---------- 头部整体 ---------- */
.wl-head {
  position: fixed;
  inset: 0;
  z-index: 120;
  pointer-events: none;
}

.wl-head::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 1;
  background: rgba(10, 17, 40, 0.6);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s var(--ease);
}

.wl-head[data-open]::before {
  opacity: 1;
  pointer-events: auto;
}

/* ---------- 顶栏 ---------- */
.wl-head__bar {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  height: var(--bar-h);
  padding: 0 1rem;
  background: transparent;
  border-bottom: 1px solid transparent;
  pointer-events: auto;
  transition: background 0.3s var(--ease), border-color 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

html[data-scrolled] .wl-head__bar {
  background: var(--deep);
  border-bottom-color: rgba(255, 107, 53, 0.5);
  box-shadow: 0 8px 24px rgba(3, 8, 26, 0.45);
}

/* ---------- 品牌 ---------- */
.wl-brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  line-height: 1;
}

.wl-brand__mark {
  display: grid;
  place-items: center;
  width: 2.5rem;
  height: 2.5rem;
  flex-shrink: 0;
  background: var(--orange);
  color: var(--deep);
  font-size: 1.4rem;
  font-weight: 800;
  border: 2px solid var(--yellow);
  box-shadow: 4px 4px 0 rgba(255, 202, 40, 0.45);
}

.wl-brand__text {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.wl-brand__name {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--cloud);
}

.wl-brand__sub {
  font-size: 0.58rem;
  font-weight: 700;
  letter-spacing: 0.22em;
  color: var(--mist);
}

.wl-badge {
  display: inline-block;
  margin-left: 0.3rem;
  padding: 0.18rem 0.4rem;
  font-size: 0.62rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  white-space: nowrap;
  color: var(--deep);
  background: var(--yellow);
  border: 2px solid var(--ink);
  box-shadow: 2px 2px 0 rgba(255, 202, 40, 0.3);
}

/* ---------- 移动端导航按钮 ---------- */
.wl-nav-toggle {
  display: block;
  width: 2.75rem;
  height: 2.75rem;
  padding: 0.8rem 0.7rem;
  color: var(--cloud);
  background: rgba(255, 107, 53, 0.1);
  border: 2px solid var(--orange);
  transition: background 0.2s var(--ease), border-color 0.2s var(--ease);
}

.wl-nav-toggle:hover {
  background: rgba(255, 202, 40, 0.12);
  border-color: var(--yellow);
}

.wl-nav-toggle__line {
  display: block;
  width: 100%;
  height: 2px;
  background: currentColor;
  transform-origin: center;
  transition: transform 0.25s var(--ease), opacity 0.25s var(--ease);
}

.wl-nav-toggle__line + .wl-nav-toggle__line {
  margin-top: 4px;
}

.wl-head[data-open] .wl-nav-toggle__line:nth-child(1) {
  transform: translateY(6px) rotate(45deg);
}

.wl-head[data-open] .wl-nav-toggle__line:nth-child(2) {
  opacity: 0;
}

.wl-head[data-open] .wl-nav-toggle__line:nth-child(3) {
  transform: translateY(-6px) rotate(-45deg);
}

/* ---------- 侧轨导航 ---------- */
.wl-rail {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0;
  z-index: 3;
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
  width: min(88vw, 19rem);
  padding: 1.25rem 1.25rem 2rem;
  overflow-y: auto;
  background: var(--mid);
  border-right: 2px solid var(--bright);
  box-shadow: none;
  transform: translateX(-100%);
  pointer-events: none;
  transition: transform 0.32s var(--ease), box-shadow 0.32s var(--ease);
}

.wl-head[data-open] .wl-rail {
  box-shadow: var(--shadow-soft);
  transform: translateX(0);
  pointer-events: auto;
}

.wl-rail__brand {
  display: none;
}

.wl-nav {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.wl-nav__link {
  position: relative;
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  padding: 0.55rem 0.35rem 0.55rem 0.85rem;
  color: var(--cloud);
  border-left: 3px solid transparent;
  transition: background 0.2s var(--ease), border-color 0.2s var(--ease), color 0.2s var(--ease);
}

.wl-nav__link:hover {
  background: rgba(255, 107, 53, 0.1);
  border-left-color: var(--orange);
}

.wl-nav__idx {
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  font-variant-numeric: tabular-nums;
  color: var(--orange);
  transition: color 0.2s var(--ease);
}

.wl-nav__label {
  font-size: 1rem;
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: 0.05em;
}

.wl-nav__link[aria-current="page"] {
  background: rgba(255, 202, 40, 0.08);
  border-left-color: var(--yellow);
  color: var(--yellow);
}

.wl-nav__link[aria-current="page"] .wl-nav__idx {
  color: var(--yellow);
}

.wl-nav__link[aria-current="page"]::after {
  content: "";
  position: absolute;
  top: 50%;
  right: 0.25rem;
  width: 0.45rem;
  height: 0.45rem;
  background: var(--orange);
  transform: translateY(-50%) rotate(45deg);
}

/* ---------- 侧轨元信息 ---------- */
.wl-rail__meta {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-top: auto;
  padding-top: 1.25rem;
  border-top: 1px solid rgba(244, 247, 251, 0.14);
}

.wl-rail__status {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.78rem;
  color: var(--mist);
}

.wl-rail__dot {
  width: 0.6rem;
  height: 0.6rem;
  flex-shrink: 0;
  background: var(--orange);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(255, 107, 53, 0.6);
  }
  70% {
    box-shadow: 0 0 0 8px rgba(255, 107, 53, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(255, 107, 53, 0);
  }
}

.wl-rail__tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.wl-rail__slogan {
  font-size: clamp(1.3rem, 3.4vw, 2rem);
  font-weight: 200;
  line-height: 1.12;
  letter-spacing: 0.04em;
  color: var(--cloud);
}

.wl-rail__slogan::after {
  content: "";
  display: block;
  width: 3.25rem;
  height: 0.32rem;
  margin-top: 0.7rem;
  background: linear-gradient(90deg, var(--orange), var(--yellow));
}

/* ---------- 滚动进度与返回顶部 ---------- */
.wl-progress {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 210;
  height: 3px;
  background: linear-gradient(90deg, var(--orange), var(--yellow));
  transform: scaleX(0);
  transform-origin: 0 50%;
  pointer-events: none;
}

.wl-top {
  position: fixed;
  right: 1.1rem;
  bottom: 1.1rem;
  z-index: 130;
  display: grid;
  place-items: center;
  width: 3.1rem;
  height: 3.1rem;
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--deep);
  background: var(--orange);
  border: 2px solid var(--yellow);
  box-shadow: 4px 4px 0 rgba(255, 202, 40, 0.4);
  opacity: 0;
  transform: translateY(0.75rem);
  pointer-events: none;
  transition: opacity 0.25s var(--ease), transform 0.25s var(--ease), background 0.2s var(--ease), border-color 0.2s var(--ease);
}

.wl-top.is-in {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

.wl-top:hover {
  background: var(--yellow);
  border-color: var(--orange);
}

/* ---------- 页脚 ---------- */
.wl-foot {
  background:
    linear-gradient(120deg, rgba(42, 63, 143, 0.35) 0 40%, transparent 40%),
    var(--deep);
  border-top: 3px solid var(--bright);
  color: var(--cloud);
}

.wl-foot__top {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 1.5rem;
  max-width: 78rem;
  margin-inline: auto;
  padding: clamp(2rem, 5vw, 4rem) clamp(1rem, 3vw, 2.25rem);
}

.wl-foot__intro {
  grid-column: span 5;
}

.wl-foot__nav {
  grid-column: span 2;
}

.wl-foot__contact {
  grid-column: span 3;
}

.wl-foot__legal {
  grid-column: span 2;
}

.wl-foot__brand {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 1.45rem;
  font-weight: 800;
  letter-spacing: 0.12em;
}

.wl-foot__slogan {
  margin-top: 0.35rem;
  font-size: 1.1rem;
  font-weight: 200;
  letter-spacing: 0.12em;
  color: var(--mist);
}

.wl-foot__desc {
  max-width: 34rem;
  margin-top: 0.9rem;
  font-size: 0.95rem;
  color: rgba(244, 247, 251, 0.78);
}

.wl-foot__trust {
  display: flex;
  align-items: flex-start;
  gap: 0.55rem;
  margin-top: 1.1rem;
  padding: 0.7rem 0.9rem;
  font-size: 0.82rem;
  color: var(--yellow);
  background: rgba(255, 107, 53, 0.08);
  border-left: 3px solid var(--orange);
}

.wl-foot__dot {
  width: 0.55rem;
  height: 0.55rem;
  flex-shrink: 0;
  margin-top: 0.4rem;
  background: var(--orange);
  border-radius: 50%;
}

.wl-foot__h {
  position: relative;
  margin-bottom: 0.9rem;
  padding-left: 0.9rem;
  font-size: 0.75rem;
  font-weight: 800;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  color: var(--yellow);
}

.wl-foot__h::before {
  content: "";
  position: absolute;
  top: 0.35em;
  left: 0;
  width: 0.55rem;
  height: 0.14rem;
  background: var(--orange);
}

.wl-foot__list {
  display: grid;
  gap: 0.5rem;
}

.wl-foot__link {
  display: inline-block;
  padding: 0.1rem 0;
  font-size: 0.92rem;
  line-height: 1.5;
  color: var(--cloud);
  border-bottom: 1px solid transparent;
  transition: color 0.2s var(--ease), border-color 0.2s var(--ease), padding-left 0.2s var(--ease);
}

.wl-foot__link:hover {
  padding-left: 0.25rem;
  color: var(--orange);
  border-bottom-color: rgba(255, 107, 53, 0.5);
}

.wl-foot__link[aria-current="page"] {
  color: var(--yellow);
  border-bottom-color: rgba(255, 202, 40, 0.5);
}

.wl-foot__text {
  font-size: 0.92rem;
  color: rgba(244, 247, 251, 0.68);
  word-break: break-all;
}

.wl-foot__note {
  margin-top: 0.6rem;
  font-size: 0.78rem;
  line-height: 1.6;
  color: var(--mist);
}

.wl-foot__base {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem 2rem;
  max-width: 78rem;
  margin-inline: auto;
  padding: 1.1rem clamp(1rem, 3vw, 2.25rem);
  font-size: 0.8rem;
  color: var(--mist);
  border-top: 1px solid rgba(244, 247, 251, 0.14);
}

.wl-foot__promise {
  color: var(--yellow);
}

/* ---------- 桌面断点 ---------- */
@media (min-width: 64em) {
  body {
    padding: 0 0 0 var(--rail-w);
  }

  .wl-head {
    inset: 0 auto 0 0;
    width: var(--rail-w);
    height: auto;
    pointer-events: auto;
  }

  .wl-head::before {
    content: none;
  }

  .wl-head__bar {
    display: none;
  }

  .wl-rail {
    position: static;
    width: 100%;
    height: 100%;
    padding: 1.5rem 1.25rem 1.25rem;
    background: rgba(10, 17, 40, 0.55);
    -webkit-backdrop-filter: blur(14px);
    backdrop-filter: blur(14px);
    border-right: 2px solid transparent;
    box-shadow: none;
    transform: none;
    pointer-events: auto;
    transition: background 0.35s var(--ease), border-color 0.35s var(--ease), box-shadow 0.35s var(--ease);
  }

  html[data-scrolled] .wl-rail {
    background: var(--mid);
    border-right-color: rgba(42, 63, 143, 0.7);
    box-shadow: 14px 0 34px rgba(3, 8, 26, 0.35);
  }

  .wl-rail__brand {
    display: inline-flex;
    margin-bottom: 1.25rem;
  }

  .wl-rail__slogan {
    font-size: clamp(1.3rem, 1.8vw, 1.9rem);
  }

  .wl-foot__top {
    gap: 2rem;
  }
}

/* ---------- 小屏断点 ---------- */
@media (max-width: 63.99em) {
  .wl-foot__intro {
    grid-column: span 12;
  }

  .wl-foot__nav,
  .wl-foot__contact,
  .wl-foot__legal {
    grid-column: span 4;
  }
}

@media (max-width: 47.99em) {
  .wl-grid {
    gap: 1rem;
  }

  .wl-col-1,
  .wl-col-2,
  .wl-col-3,
  .wl-col-4,
  .wl-col-5,
  .wl-col-6,
  .wl-col-7,
  .wl-col-8,
  .wl-col-9,
  .wl-col-10,
  .wl-col-11,
  .wl-col-12 {
    grid-column: span 12;
  }

  .wl-foot__nav,
  .wl-foot__contact,
  .wl-foot__legal {
    grid-column: span 12;
  }
}

/* ---------- 动效偏好 ---------- */
@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;
  }
}