/* ══════════════════════════════════════════════════════════════
   Studio Rate 定价卡 Hero —— 设计令牌
   ══════════════════════════════════════════════════════════════ */

:root {
  /* 强调色 */
  --sr-accent:       #B2D770;
  --sr-accent-ink:   #000000;

  /* 卡片 */
  --sr-card-bg:      rgba(0, 0, 0, 0.70);
  --sr-card-inner:   rgba(17, 18, 15, 0.60);
  --sr-border:       rgba(255, 255, 255, 0.10);
  --sr-white-20:     rgba(255, 255, 255, 0.20);

  /* 文字层级 */
  --sr-text:         #ffffff;
  --sr-text-80:      rgba(255, 255, 255, 0.80);
  --sr-text-70:      rgba(255, 255, 255, 0.70);
  --sr-text-60:      rgba(255, 255, 255, 0.60);
  --sr-text-50:      rgba(255, 255, 255, 0.50);

  /* 字体 */
  --sr-font: 'Geist', ui-sans-serif, system-ui, sans-serif;

  /* 圆角 */
  --sr-radius-card:  16px;   /* rounded-2xl */
  --sr-radius-inner: 12px;   /* rounded-xl */
  --sr-radius-btn:   8px;    /* rounded-lg */
  --sr-radius-pill:  9999px;

  /* 字号 */
  --sr-fs-hero:      clamp(2.5rem, 12vw, 10rem);
  --sr-fs-price:     clamp(2.25rem, 5vw, 4.5rem);

  /* 卡片高度 */
  --sr-card-h:       280px;
}
@media (min-width: 640px)  { :root { --sr-card-h: 310px; } }
@media (min-width: 768px)  { :root { --sr-card-h: 340px; } }

/* ══════════════════════════════════════════════════════════════
   Studio Rate 定价卡 Hero —— 样式
   依赖 tokens.css
   ══════════════════════════════════════════════════════════════ */

/* Geist 字体(变量字体,100-900) */
@font-face {
  font-family: 'Geist';
  src: url('/fonts/Geist-Variable.woff2') format('woff2-variations');
  font-weight: 100 900;
  font-style: normal;
  font-display: swap;
}

/* ══════════════ ① 外层 ══════════════ */
.sr {
  position: relative;
  min-height: 100vh;
  width: 100%;
  overflow: hidden;
  font-family: var(--sr-font);
  background: #000;
  color: #fff;
}
.sr__video {
  position: absolute;
  inset: 0;
  width: 100%; height: 100%;
  object-fit: cover;
  object-position: right;      /* 移动端:靠右 */
  z-index: 0;
}
@media (min-width: 768px) {
  .sr__video { object-position: center; }
}

.sr__content {
  position: relative;
  z-index: 10;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* 顶部区 */
.sr__top {
  padding: 40px 20px 0;
}
@media (min-width: 640px) { .sr__top { padding: 64px 32px 0; } }
@media (min-width: 768px) { .sr__top { padding: 96px 64px 0; } }
@media (min-width: 1024px) { .sr__top { padding-left: 96px; padding-right: 96px; } }

/* 大标题 */
.sr__title {
  margin: 0;
  font-family: var(--sr-font);
  font-size: var(--sr-fs-hero);
  font-weight: 300;               /* font-light */
  line-height: 0.9;
  letter-spacing: -0.03em;
  color: #fff;
}
.sr__title span { display: block; }

.sr__spacer { flex: 1 1 auto; }

/* 底部区 */
.sr__bottom {
  padding: 0 16px 32px;
}
@media (min-width: 640px) { .sr__bottom { padding: 0 32px 48px; } }
@media (min-width: 768px) { .sr__bottom { padding: 0 64px 80px; } }
@media (min-width: 1024px) { .sr__bottom { padding-left: 96px; padding-right: 96px; } }

/* ══════════════ ② 定价卡 ══════════════ */
.sr-card {
  width: 100%;
  border: 1px solid var(--sr-border);
  border-radius: var(--sr-radius-card);
  background: var(--sr-card-bg);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  padding: 12px;
  height: var(--sr-card-h);
  display: flex;
  flex-direction: column;
}
@media (min-width: 640px) { .sr-card { padding: 16px; } }
@media (min-width: 768px) { .sr-card { padding: 20px; } }

.sr-card__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  align-items: stretch;
  flex: 1 1 auto;
  min-height: 0;
}
@media (min-width: 768px) {
  .sr-card__grid { grid-template-columns: repeat(3, 1fr); gap: 20px; }
}

/* ── 第 1 列:开关卡 ── */
.sr-toggle {
  background: var(--sr-card-inner);
  backdrop-filter: blur(24px);
  -webkit-backdrop-filter: blur(24px);
  border: 1px solid var(--sr-border);
  border-radius: var(--sr-radius-inner);
  padding: 20px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 0;
}
@media (min-width: 640px) { .sr-toggle { padding: 24px; } }

.sr-toggle__title {
  font-size: 16px;
  font-weight: 500;
  color: #fff;
  margin: 0 0 8px;
  text-align: left;
}
@media (min-width: 640px) { .sr-toggle__title { font-size: 18px; } }

.sr-toggle__desc {
  font-size: 14px;
  line-height: 1.6;
  color: var(--sr-text-60);
  margin: 0;
  text-align: left;
}

.sr-toggle__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 16px;
}
.sr-toggle__price {
  font-size: 18px;
  font-weight: 300;
  color: #fff;
}

/* 自定义开关 */
.sr-switch {
  position: relative;
  width: 56px; height: 28px;
  border-radius: var(--sr-radius-pill);
  background: var(--sr-white-20);
  border: 0;
  cursor: pointer;
  padding: 0;
  transition: background .2s ease;
  flex: 0 0 auto;
}
.sr-switch[aria-checked="true"] { background: var(--sr-accent); }
.sr-switch__thumb {
  position: absolute;
  top: 4px; left: 4px;
  width: 20px; height: 20px;
  border-radius: 50%;
  background: #000;
  transition: transform .2s ease;
}
.sr-switch[aria-checked="true"] .sr-switch__thumb { transform: translateX(28px); }

/* ── 第 2 列:价格 ── */
.sr-price {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 12px 0;
  min-height: 0;
}
@media (min-width: 640px) { .sr-price { padding: 16px 0; } }
@media (min-width: 768px) { .sr-price { padding: 20px 0; } }

.sr-price__main {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
}
.sr-price__value {
  font-size: var(--sr-fs-price);
  font-weight: 300;
  letter-spacing: -0.02em;
  color: #fff;
  line-height: 1;
}
.sr-price__suffix {
  font-size: 14px;
  color: var(--sr-text-50);
  margin-left: 4px;
}
@media (min-width: 640px) { .sr-price__suffix { font-size: 16px; } }

.sr-price__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-top: 16px;
}
.sr-price__label { font-size: 14px; color: var(--sr-text-50); }
.sr-price__rush  { font-size: 14px; font-weight: 500; color: var(--sr-text-80); }

/* ── 第 3 列:特性 + CTA ── */
.sr-feat {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 12px 0;
  min-height: 0;
}
@media (min-width: 640px) { .sr-feat { padding: 16px 0; } }
@media (min-width: 768px) { .sr-feat { padding: 20px 0; } }

.sr-feat__list {
  list-style: none;
  margin: 0; padding: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.sr-feat__item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--sr-text-70);
}
.sr-feat__item svg {
  width: 16px; height: 16px;
  color: var(--sr-accent);
  flex: 0 0 auto;
}
@media (min-width: 640px) {
  .sr-feat__item svg { width: 20px; height: 20px; }
}

.sr-cta {
  display: flex;
  align-items: stretch;
  gap: 3px;
  margin-top: 18px;
}
.sr-cta__main {
  flex: 1 1 auto;
  background: var(--sr-accent);
  color: var(--sr-accent-ink);
  border-radius: var(--sr-radius-btn);
  padding: 10px 16px;
  font-size: 14px;
  font-weight: 500;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: filter .18s ease;
}
@media (min-width: 640px) { .sr-cta__main { padding: 10px 20px; } }
.sr-cta__main:hover { filter: brightness(1.06); }

.sr-cta__icon {
  flex: 0 0 auto;
  width: 40px;
  background: var(--sr-accent);
  color: var(--sr-accent-ink);
  border-radius: var(--sr-radius-btn);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  transition: filter .18s ease;
}
.sr-cta__icon:hover { filter: brightness(1.06); }

/* ══════════════ ③ 响应式(小屏堆叠)══════════════ */
@media (max-width: 767px) {
  .sr-card {
    height: auto;
    max-height: 62vh;
    overflow-y: auto;
  }
  .sr-card__grid { gap: 12px; }
  .sr-price { padding: 8px 0; }
  .sr-feat  { padding: 8px 0; }
}

/* ══════════════ ④ 无障碍 ══════════════ */
.sr-switch:focus-visible,
.sr-cta__main:focus-visible,
.sr-cta__icon:focus-visible {
  outline: 2px solid var(--sr-accent);
  outline-offset: 3px;
}
@media (prefers-reduced-motion: reduce) {
  .sr-switch, .sr-switch__thumb, .sr-cta__main, .sr-cta__icon { transition: none; }
}