/* ==========================================================================
   Space Vanta · Hero — lines（三条业务线，v2）
   路径：public/hero/lines/cs/lines.css
   命名空间：sv-hero__line / sv-hero__grid / sv-hero__tabs

   不再用深色块。三张卡都是金属渐变表面，差异靠“切角方向”和“冷蓝切线”表达，而不是明暗：
   · Shop          左上方向切角（通向主入口的“第一刀”）  白 → 银灰
   · Bundles       左下切角（组合、拼接）                  银灰 → 钢灰（中明度）
   · Made to Order 右下切角（定制、留出空间）              白 → 冷蓝雾

   桌面：三张并排。手机：由 lines.js 生成标签，一次只展示一张（左右滑动或点击切换）。
   ========================================================================== */

.sv-hero__lines {
  margin-top: clamp(36px, 5vw, 56px);
}

.sv-hero__lines-label {
  margin: 0 0 16px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--sv-hero-muted);
}

/* 手机标签栏：桌面隐藏 */
.sv-hero__tabs {
  display: none;
}

.sv-hero__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  counter-reset: sv-hero-line;
}

html:not(.sv-intro-pending) .sv-hero__grid > * {
  animation: sv-hero-rise .8s var(--sv-hero-ease) both;
}

html:not(.sv-intro-pending) .sv-hero__grid > :nth-child(2) { animation-delay: .1s; }
html:not(.sv-intro-pending) .sv-hero__grid > :nth-child(3) { animation-delay: .2s; }

/* ---------- 卡片基础 ---------- */
.sv-hero__line {
  counter-increment: sv-hero-line;
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 250px;
  padding: 26px 28px 24px;
  color: var(--sv-hero-ink);
  transition: transform .5s var(--sv-hero-ease);
}

.sv-hero__line:hover { transform: translateY(-3px); }

/* 切角边缘的冷蓝切线（具体位置与角度见各变体） */
.sv-hero__line::before {
  content: "";
  position: absolute;
  width: 36px;
  height: 36px;
  pointer-events: none;
}

/* 旧版的角标元素改为不显示（切角已由 clip-path 表达） */
.sv-hero__line-shard { display: none; }

.sv-hero__line-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 36px;
}

.sv-hero__line-index::before {
  content: counter(sv-hero-line, decimal-leading-zero);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .12em;
  font-variant-numeric: tabular-nums;
  color: var(--sv-hero-blue-ink);
}

.sv-hero__line-tag {
  font-size: 11.5px;
  letter-spacing: .04em;
  text-align: right;
  color: var(--sv-hero-muted);
}

.sv-hero__line-title {
  margin: 0 0 10px;
  font-size: 24px;
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -.01em;
  color: inherit;
}

/* 标题链接撑满整张卡 */
.sv-hero__line-link {
  color: inherit;
  text-decoration: none;
}

.sv-hero__line-link::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
}

.sv-hero__line-text {
  margin: 0 0 28px;
  font-size: 15px;
  line-height: 1.6;
  color: var(--sv-hero-muted);
}

.sv-hero__line-cta {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-top: auto;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--sv-hero-ink);
}

.sv-hero__line:hover .sv-hero__cta-arrow { width: 40px; }

/* ---------- 变体：金属表面 + 切角方向 ---------- */

/* Shop：白 → 银灰，右上切角 */
.sv-hero__line--shop {
  background: linear-gradient(160deg, #FFFFFF 0%, #E4E9F1 50%, #C9D1DE 100%);
  clip-path: polygon(0 0, calc(100% - 36px) 0, 100% 36px, 100% 100%, 0 100%);
}

.sv-hero__line--shop::before {
  top: 0;
  right: 0;
  background: linear-gradient(to top right, transparent calc(50% - 1px), var(--sv-hero-blue) 50%, transparent calc(50% + 1px));
}

/* Bundles：银灰 → 钢灰（中明度），左下切角，文字用墨色 */
.sv-hero__line--bundle {
  background: linear-gradient(200deg, #F7F8FA 0%, #C4CCDA 45%, #8793A8 100%);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 36px 100%, 0 calc(100% - 36px));
}

.sv-hero__line--bundle::before {
  bottom: 0;
  left: 0;
  background: linear-gradient(to top right, transparent calc(50% - 1px), var(--sv-hero-blue) 50%, transparent calc(50% + 1px));
}

.sv-hero__line--bundle .sv-hero__line-tag,
.sv-hero__line--bundle .sv-hero__line-text { color: #1F2636; }

.sv-hero__line--bundle .sv-hero__line-index::before { color: var(--sv-hero-ink); }

/* Made to Order：白 → 冷蓝雾，右下切角 */
.sv-hero__line--order {
  background: linear-gradient(150deg, #FFFFFF 0%, #E3EDFD 55%, #BCD5FA 100%);
  clip-path: polygon(0 0, 100% 0, 100% calc(100% - 36px), calc(100% - 36px) 100%, 0 100%);
}

.sv-hero__line--order::before {
  bottom: 0;
  right: 0;
  background: linear-gradient(to bottom right, transparent calc(50% - 1px), var(--sv-hero-blue) 50%, transparent calc(50% + 1px));
}

/* ---------- 中等屏 ---------- */
@media (min-width: 768px) and (max-width: 1100px) {
  .sv-hero__line { min-height: 230px; padding: 22px 22px 20px; }
  .sv-hero__line-title { font-size: 21px; }
  .sv-hero__line-text { font-size: 14px; }
}

/* ---------- 手机：标签切换 ---------- */
@media (max-width: 767px) {
  .sv-hero__tabs {
    display: flex;
    gap: 8px;
    margin: 0 0 12px;
    padding: 2px 2px 4px;
    overflow-x: auto;
    scrollbar-width: none;
    -webkit-overflow-scrolling: touch;
  }

  .sv-hero__tabs::-webkit-scrollbar { display: none; }

  .sv-hero__tab {
    appearance: none;
    flex: 0 0 auto;
    padding: 12px 14px;
    border: 1px solid var(--sv-hero-hair);
    background: rgba(255, 255, 255, .72);
    color: var(--sv-hero-ink);
    font: inherit;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: .12em;
    text-transform: uppercase;
    cursor: pointer;
    transition: background .3s, border-color .3s;
  }

  .sv-hero__tab[aria-selected="true"] {
    background: var(--sv-hero-blue);
    border-color: transparent;
  }

  .sv-hero__tab:focus-visible {
    outline: 2px solid var(--sv-hero-blue);
    outline-offset: 3px;
  }

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

  .sv-hero__line {
    min-height: 0;
    padding: 24px 22px 22px;
  }

  .sv-hero__line-head { margin-bottom: 20px; }

  .sv-hero__line-title { font-size: 24px; margin-bottom: 8px; }

  .sv-hero__line-text { margin-bottom: 22px; font-size: 14.5px; }

  .sv-hero__line:hover { transform: none; }
}

/* 手机上切换面板时的淡入 */
@media (max-width: 767px) and (prefers-reduced-motion: no-preference) {
  .sv-hero__grid > [data-hero-panel-on] {
    animation: sv-hero-fade .45s var(--sv-hero-ease) both;
  }
}