/*
 * 落地页样式（云机 / 物理机）
 * 结构参照 dwidc.com 的 cloud.html / dedicated.html，
 * 配色一律走 design-system.css 的品牌令牌，不引入参考站的蓝色系。
 *
 * 依赖：design-system.css（--site-brand 等）、ccyidc-brand.css
 * 断点：1180 / 900 / 600 / 420
 */

/* ============ 基础 ============ */
/* design-system.css 未设全局 border-box，容器加 padding 后会撑破视口。
   此处对落地页子树显式声明 border-box，避免影响其他页面。 */
.lp-body,
.lp-body *,
.lp-body *::before,
.lp-body *::after {
  box-sizing: border-box;
}

.lp-body {
  background: var(--site-surface-page);
  color: var(--site-text-primary);
  font-family: var(--site-font-family);
  -webkit-font-smoothing: antialiased;
  /* 兜底：任何子元素意外超宽时不产生横向滚动条 */
  overflow-x: hidden;
}

.lp-wrap {
  width: 100%;
  max-width: var(--site-content-width);
  margin: 0 auto;
  padding: 0 40px;
}

.lp-section {
  padding: var(--site-section-space) 0;
}

.lp-section-muted {
  background: var(--site-surface-muted);
}

/* ============ 按钮 ============ */
.lp-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 44px;
  padding: 0 22px;
  border: 1px solid transparent;
  border-radius: var(--site-radius-structural);
  font-size: 15px;
  font-weight: var(--site-weight-medium);
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  transition: background-color .18s ease, border-color .18s ease,
              color .18s ease, transform .18s ease;
}

.lp-btn-lg {
  height: 50px;
  padding: 0 28px;
  font-size: 16px;
}

.lp-btn-primary {
  background: var(--site-brand);
  color: #fff;
}

.lp-btn-primary:hover {
  background: var(--site-brand-hover);
  transform: translateY(-1px);
}

.lp-btn-ghost {
  background: transparent;
  border-color: var(--site-outline-strong);
  color: var(--site-text-primary);
}

.lp-btn-ghost:hover {
  border-color: var(--site-brand);
  color: var(--site-brand);
}

.lp-btn-disabled,
.lp-btn-disabled:hover {
  background: var(--site-outline-soft);
  color: var(--site-text-disabled);
  cursor: not-allowed;
  transform: none;
}

/* ============ 首屏 ============ */
.lp-hero {
  position: relative;
  overflow: hidden;
  padding: 84px 0 96px;
  background:
    radial-gradient(circle at 82% 18%, var(--site-brand-faint), transparent 58%),
    linear-gradient(180deg, #fbfcff 0%, var(--site-surface-page) 100%);
}

.lp-hero-dedicated {
  background:
    radial-gradient(circle at 82% 18%, rgba(22, 93, 255, .1), transparent 58%),
    linear-gradient(180deg, #f9fbff 0%, var(--site-surface-page) 100%);
}

.lp-hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 520px);
  gap: 72px;
  align-items: center;
}

.lp-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 22px;
  font-size: 13px;
  font-weight: var(--site-weight-medium);
  letter-spacing: .04em;
  color: var(--site-brand);
}

.lp-eyebrow > span {
  width: 22px;
  height: 2px;
  background: var(--site-brand);
}

.lp-hero-title {
  margin: 0 0 24px;
  font-size: var(--site-font-hero);
  font-weight: var(--site-weight-hero);
  line-height: 1.22;
  letter-spacing: -.01em;
  color: var(--site-text-strong);
}

.lp-hero-title em {
  font-style: normal;
  color: var(--site-brand);
}

.lp-hero-desc {
  margin: 0 0 34px;
  max-width: var(--site-hero-description-width);
  font-size: var(--site-font-body-lg);
  line-height: 1.78;
  color: var(--site-text-secondary);
}

.lp-hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 34px;
}

.lp-hero-points {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  font-size: 14px;
  color: var(--site-text-secondary);
}

.lp-hero-points b {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  margin-right: 6px;
  border-radius: 50%;
  background: var(--site-brand-soft);
  color: var(--site-brand);
  font-size: 11px;
}

/* 右侧资源卡 */
.lp-resource-card {
  position: relative;
  padding: 30px;
  border: 1px solid var(--site-outline);
  border-radius: 10px;
  background: var(--site-surface-raised);
  box-shadow: var(--site-shadow-float);
}

.lp-resource-card::after {
  content: "";
  position: absolute;
  inset: auto -18px -18px auto;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background: var(--site-brand-faint);
  z-index: -1;
}

.lp-resource-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 22px;
  font-size: 11px;
  letter-spacing: .12em;
  color: var(--site-text-tertiary);
}

.lp-resource-title {
  display: flex;
  align-items: center;
  gap: 16px;
  padding-bottom: 22px;
  border-bottom: 1px solid var(--site-outline-soft);
}

.lp-resource-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 52px;
  height: 52px;
  border-radius: 10px;
  background: var(--site-brand-soft);
  color: var(--site-brand);
  font-size: 24px;
  flex: 0 0 auto;
}

.lp-resource-title small {
  display: block;
  font-size: 11px;
  letter-spacing: .1em;
  color: var(--site-text-tertiary);
}

.lp-resource-title h2 {
  margin: 4px 0 2px;
  font-size: 22px;
  font-weight: var(--site-weight-title);
  color: var(--site-text-strong);
}

.lp-resource-title p {
  margin: 0;
  font-size: 13px;
  color: var(--site-text-secondary);
}

.lp-resource-options {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
  padding: 22px 0;
}

.lp-resource-options > div {
  padding: 14px 12px;
  border: 1px solid var(--site-outline-soft);
  border-radius: 6px;
  background: var(--site-surface-subtle);
  text-align: center;
}

.lp-resource-options strong {
  display: block;
  margin-bottom: 4px;
  font-size: 13px;
  font-weight: var(--site-weight-semibold);
  color: var(--site-text-strong);
}

.lp-resource-options span {
  font-size: 12px;
  color: var(--site-text-tertiary);
}

.lp-resource-bottom {
  display: flex;
  justify-content: space-between;
  padding-top: 18px;
  border-top: 1px solid var(--site-outline-soft);
  font-size: 12px;
  color: var(--site-text-secondary);
}

/* ============ 快捷锚点 ============ */
.lp-quick {
  padding: 0 0 8px;
  margin-top: -34px;
  position: relative;
  z-index: 2;
}

.lp-quick-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  padding: 8px;
  border: 1px solid var(--site-outline);
  border-radius: 12px;
  background: var(--site-surface-raised);
  box-shadow: var(--site-shadow-card);
}

.lp-quick-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 18px 20px;
  border-radius: 8px;
  text-decoration: none;
  transition: background-color .18s ease;
}

.lp-quick-item:hover {
  background: var(--site-brand-soft);
}

.lp-quick-text strong {
  display: block;
  margin-bottom: 4px;
  font-size: 15px;
  font-weight: var(--site-weight-semibold);
  color: var(--site-text-strong);
}

.lp-quick-text em {
  font-style: normal;
  font-size: 12px;
  color: var(--site-text-tertiary);
}

.lp-quick-arrow {
  flex: 0 0 auto;
  color: var(--site-brand);
  font-size: 16px;
}

/* ============ 分区标题 ============ */
.lp-head {
  max-width: 760px;
  margin: 0 auto 52px;
  text-align: center;
}

.lp-kicker {
  margin: 0 0 12px;
  font-size: 12px;
  font-weight: var(--site-weight-semibold);
  letter-spacing: .14em;
  color: var(--site-brand);
}

.lp-head h2 {
  margin: 0 0 14px;
  font-size: var(--site-font-section);
  font-weight: var(--site-weight-section);
  line-height: 1.3;
  color: var(--site-text-strong);
}

.lp-head-sub {
  margin: 0;
  font-size: 15px;
  line-height: 1.7;
  color: var(--site-text-secondary);
}

/* ============ 地区 Tab ============ */
.lp-region-tabs {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
  margin-bottom: 40px;
}

.lp-region {
  height: 40px;
  padding: 0 20px;
  border: 1px solid var(--site-outline);
  border-radius: 20px;
  background: var(--site-surface-page);
  color: var(--site-text-secondary);
  font-family: inherit;
  font-size: 14px;
  cursor: pointer;
  transition: all .18s ease;
}

.lp-region:hover {
  border-color: var(--site-brand);
  color: var(--site-brand);
}

.lp-region.is-active {
  border-color: var(--site-brand);
  background: var(--site-brand);
  color: #fff;
}

/* ============ 机型卡片 ============ */
.lp-plans {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--site-card-gap);
}

/* 🔴 分类筛选的关键：.lp-plans 声明了 display:grid，作者样式优先级高于浏览器
   默认的 [hidden]{display:none}，导致 JS 加上 hidden 属性后仍全部显示。
   此处显式补一条 [hidden] 规则，让被筛掉的面板真正隐藏。
   （2026-11-10 修复：点击一级分组后仍展示全部服务器） */
.lp-plans[hidden] {
  display: none !important;
}

.lp-plan {
  position: relative;
  display: flex;
  flex-direction: column;
  padding: 26px;
  border: 1px solid var(--site-outline);
  border-radius: 8px;
  background: var(--site-surface-page);
  transition: border-color .2s ease, box-shadow .2s ease, transform .2s ease;
}

.lp-plan:hover {
  border-color: var(--site-brand);
  box-shadow: var(--site-shadow-card-hover);
  transform: translateY(-2px);
}

.lp-plan.is-soldout {
  opacity: .62;
}

.lp-plan-badge {
  position: absolute;
  top: 0;
  right: 20px;
  padding: 3px 10px;
  border-radius: 0 0 4px 4px;
  background: var(--site-brand);
  color: #fff;
  font-size: 11px;
  font-weight: var(--site-weight-medium);
}

.lp-plan h4 {
  margin: 0 0 18px;
  font-size: var(--site-font-card-title);
  font-weight: var(--site-weight-title);
  color: var(--site-text-strong);
}

.lp-plan-spec {
  flex: 1;
  margin: 0 0 20px;
  padding: 0;
  list-style: none;
}

.lp-plan-spec li {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 9px 0;
  border-bottom: 1px dashed var(--site-outline-soft);
  font-size: 13px;
}

.lp-plan-spec li:last-child {
  border-bottom: none;
}

.lp-plan-spec span {
  color: var(--site-text-tertiary);
}

.lp-plan-spec b {
  font-weight: var(--site-weight-medium);
  color: var(--site-text-primary);
  text-align: right;
}

.lp-plan-foot {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 14px;
  padding-top: 18px;
  border-top: 1px solid var(--site-outline-soft);
}

.lp-plan-price {
  display: flex;
  align-items: baseline;
  color: var(--site-brand);
}

.lp-plan-price em {
  font-style: normal;
  font-size: 15px;
  font-weight: var(--site-weight-medium);
}

.lp-plan-price b {
  font-size: 26px;
  font-weight: var(--site-weight-hero);
  line-height: 1;
}

.lp-plan-price small {
  margin-left: 4px;
  font-size: 12px;
  color: var(--site-text-tertiary);
}

.lp-plan .lp-btn {
  height: 38px;
  padding: 0 16px;
  font-size: 13px;
}

/* ============ 优势 4 宫格 ============ */
.lp-adv-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: var(--site-card-gap);
}

.lp-adv {
  padding: var(--site-card-padding);
  border: 1px solid var(--site-outline);
  border-radius: 8px;
  background: var(--site-surface-page);
  transition: border-color .2s ease, box-shadow .2s ease;
}

.lp-adv:hover {
  border-color: var(--site-brand);
  box-shadow: var(--site-shadow-card);
}

.lp-adv-num {
  display: inline-block;
  margin-bottom: 16px;
  font-size: 13px;
  font-weight: var(--site-weight-semibold);
  color: var(--site-brand);
  letter-spacing: .06em;
}

.lp-adv h3 {
  margin: 0 0 12px;
  font-size: var(--site-font-card-title);
  font-weight: var(--site-weight-title);
  color: var(--site-text-strong);
}

.lp-adv p {
  margin: 0;
  font-size: 14px;
  line-height: 1.75;
  color: var(--site-text-secondary);
}

/* ============ 场景 4 宫格 ============ */
.lp-scene-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: var(--site-card-gap);
}

.lp-scene {
  padding: 34px;
  border: 1px solid var(--site-outline);
  border-radius: 8px;
  background: var(--site-surface-subtle);
  transition: background-color .2s ease, border-color .2s ease;
}

.lp-scene:hover {
  border-color: var(--site-brand);
  background: var(--site-surface-page);
}

.lp-scene h3 {
  margin: 0 0 8px;
  font-size: var(--site-font-subsection);
  font-weight: var(--site-weight-title);
  color: var(--site-text-strong);
}

.lp-scene-sub {
  margin: 0 0 14px;
  font-size: 14px;
  font-weight: var(--site-weight-medium);
  color: var(--site-brand);
}

.lp-scene-desc {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--site-text-secondary);
}

/* ============ 企业特性 3 列 ============ */
.lp-feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--site-card-gap);
}

.lp-feature {
  padding: 36px 30px;
  border: 1px solid var(--site-outline);
  border-radius: 8px;
  background: var(--site-surface-page);
  transition: border-color .2s ease, box-shadow .2s ease;
}

.lp-feature:hover {
  border-color: var(--site-brand);
  box-shadow: var(--site-shadow-card);
}

.lp-feature-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  margin-bottom: 18px;
  border-radius: 8px;
  background: var(--site-brand-soft);
  color: var(--site-brand);
  font-size: 14px;
  font-weight: var(--site-weight-semibold);
}

.lp-feature h3 {
  margin: 0 0 12px;
  font-size: var(--site-font-card-title);
  font-weight: var(--site-weight-title);
  color: var(--site-text-strong);
}

.lp-feature p {
  margin: 0;
  font-size: 14px;
  line-height: 1.8;
  color: var(--site-text-secondary);
}

/* ============ 优惠专场 ============ */
.lp-offer-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: var(--site-card-gap);
  margin-bottom: 48px;
}

.lp-offer {
  display: block;
  padding: 32px 28px;
  border: 1px solid var(--site-outline);
  border-radius: 8px;
  background: var(--site-surface-page);
  text-decoration: none;
  transition: border-color .2s ease, box-shadow .2s ease, transform .2s ease;
}

.lp-offer:hover {
  border-color: var(--site-brand);
  box-shadow: var(--site-shadow-card-hover);
  transform: translateY(-2px);
}

.lp-offer-tag {
  display: inline-block;
  margin-bottom: 14px;
  padding: 3px 10px;
  border-radius: 4px;
  background: var(--site-brand-soft);
  color: var(--site-brand);
  font-size: 12px;
  font-weight: var(--site-weight-medium);
}

.lp-offer h3 {
  margin: 0 0 10px;
  font-size: var(--site-font-card-title);
  font-weight: var(--site-weight-title);
  color: var(--site-text-strong);
}

.lp-offer p {
  margin: 0 0 18px;
  font-size: 14px;
  line-height: 1.7;
  color: var(--site-text-secondary);
}

.lp-offer-more {
  font-size: 13px;
  font-weight: var(--site-weight-medium);
  color: var(--site-brand);
}

/* ============ 行动号召带 ============ */
.lp-cta-band {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  padding: 40px 44px;
  border-radius: 10px;
  background: linear-gradient(120deg, var(--site-brand) 0%, var(--site-brand-active) 100%);
  color: #fff;
}

.lp-cta-copy h3 {
  margin: 0 0 8px;
  font-size: 22px;
  font-weight: var(--site-weight-title);
}

.lp-cta-copy p {
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
  opacity: .88;
}

.lp-cta-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  flex: 0 0 auto;
}

.lp-cta-band .lp-btn-primary {
  background: #fff;
  color: var(--site-brand);
}

.lp-cta-band .lp-btn-primary:hover {
  background: var(--site-brand-soft);
}

.lp-cta-band .lp-btn-ghost {
  border-color: rgba(255, 255, 255, .55);
  color: #fff;
}

.lp-cta-band .lp-btn-ghost:hover {
  border-color: #fff;
  background: rgba(255, 255, 255, .12);
  color: #fff;
}

/* ============ 响应式 ============ */

/* 1180：三列降两列，首屏右卡下移 */
@media (max-width: 1180px) {
  .lp-wrap {
    padding: 0 32px;
  }

  .lp-hero-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .lp-hero-visual {
    max-width: 560px;
  }

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

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

  .lp-quick-bar {
    grid-template-columns: repeat(2, 1fr);
  }
}

/* 900：特性与优惠转单列 */
@media (max-width: 900px) {
  :root {
    --site-section-space: 76px;
  }

  .lp-hero {
    padding: 60px 0 80px;
  }

  .lp-hero-title {
    font-size: 38px;
  }

  .lp-feature-grid,
  .lp-offer-grid {
    grid-template-columns: 1fr;
  }

  .lp-scene-grid {
    grid-template-columns: 1fr;
  }

  .lp-cta-band {
    flex-direction: column;
    align-items: flex-start;
    padding: 32px;
  }

  .lp-head {
    margin-bottom: 40px;
  }
}

/* 600：移动端 */
@media (max-width: 600px) {
  .lp-wrap {
    padding: 0 20px;
  }

  .lp-hero {
    padding: 44px 0 64px;
  }

  .lp-hero-title {
    font-size: 30px;
    line-height: 1.28;
  }

  .lp-hero-desc {
    font-size: 15px;
    margin-bottom: 26px;
  }

  .lp-hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .lp-hero-actions .lp-btn {
    width: 100%;
  }

  .lp-hero-points {
    gap: 14px;
    font-size: 13px;
  }

  .lp-resource-card {
    padding: 22px;
  }

  .lp-resource-options {
    grid-template-columns: 1fr;
  }

  .lp-quick {
    margin-top: -20px;
  }

  .lp-quick-bar {
    grid-template-columns: 1fr;
    padding: 6px;
  }

  .lp-quick-item {
    padding: 14px 16px;
  }

  .lp-head h2 {
    font-size: 26px;
  }

  .lp-plans,
  .lp-adv-grid {
    grid-template-columns: 1fr;
  }

  .lp-plan,
  .lp-adv,
  .lp-feature,
  .lp-offer {
    padding: 24px 20px;
  }

  .lp-scene {
    padding: 26px 20px;
  }

  .lp-scene h3 {
    font-size: 20px;
  }

  .lp-region-tabs {
    gap: 8px;
  }

  .lp-region {
    height: 36px;
    padding: 0 14px;
    font-size: 13px;
  }

  .lp-cta-band {
    padding: 26px 22px;
  }

  .lp-cta-actions {
    width: 100%;
    flex-direction: column;
  }

  .lp-cta-actions .lp-btn {
    width: 100%;
  }
}

/* 420：超窄屏 */
@media (max-width: 420px) {
  .lp-wrap {
    padding: 0 16px;
  }

  .lp-hero-title {
    font-size: 26px;
  }

  .lp-plan-foot {
    flex-direction: column;
    align-items: stretch;
    gap: 12px;
  }

  .lp-plan-foot .lp-btn {
    width: 100%;
  }

  .lp-plan-price b {
    font-size: 24px;
  }
}