@charset "UTF-8";
/* ============================================================
   styles.css — PazHome 品牌首页
   设计方向：暖调 · 衬线标题 · 方角语言 · 移动优先 · 非对称编辑式网格
   ============================================================ */

/* ---------- 1. Design Tokens ---------- */
:root {
  /* 色板：陶土 / 奶油 / 鼠尾草 / 墨 */
  --clay:        #C4703F;
  --clay-dark:   #A85B30;
  --clay-soft:   #F3E3D5;
  --cream:       #FDF8F2;
  --cream-deep:  #F5EBE0;
  --sage:        #7A8B6F;
  --sage-soft:   #E8EDE3;
  --ink:         #2A2420;
  --ink-soft:    #5A5049;
  --ink-mute:    #8A7F76;
  --line:        #E5DACB;
  --line-strong: #D3C4B0;
  --white:       #FFFFFF;

  /* 字体：标题衬线，正文系统无衬线，零网络依赖 */
  --font-serif: Georgia, "Iowan Old Style", "Palatino Linotype", "Times New Roman", "Songti SC", "SimSun", serif;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue",
               "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", sans-serif;

  /* 圆角：方角语言（区别于常见的大圆角/药丸） */
  --r:    4px;
  --r-lg: 8px;

  /* 间距 */
  --sp-1: 4px;  --sp-2: 8px;  --sp-3: 12px; --sp-4: 16px;
  --sp-5: 24px; --sp-6: 32px; --sp-7: 48px; --sp-8: 64px; --sp-9: 88px;

  /* 布局 */
  --maxw:   1200px;
  --gutter: 20px;

  /* 阴影：克制，仅两档 */
  --sh-sm: 0 1px 2px rgba(42, 36, 32, .05);
  --sh-md: 0 6px 20px -8px rgba(42, 36, 32, .18);

  /* 过渡 */
  --ease: cubic-bezier(.4, 0, .2, 1);
}

/* ---------- 2. Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--cream);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; border: 0; }
button { font: inherit; color: inherit; cursor: pointer; }
a { color: var(--clay-dark); text-decoration: none; }
a:hover { text-decoration: underline; }
h1, h2, h3, h4 { font-family: var(--font-serif); font-weight: 400; margin: 0; line-height: 1.2; }
p { margin: 0; }
ul { margin: 0; padding: 0; list-style: none; }

:focus-visible {
  outline: 2px solid var(--clay);
  outline-offset: 2px;
  border-radius: var(--r);
}

/* 首帧防闪烁：EN 首访时短暂隐藏，2s 安全网兜底 */
html[data-pending-lang] .shell { visibility: hidden; }

/* ---------- 3. 布局基元 ---------- */
.shell { display: block; }

.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding-inline: var(--gutter);
}

.section { padding-block: var(--sp-7); }
.section--tint { background: var(--cream-deep); }
.section--rule { border-top: 1px solid var(--line); }

.section__title {
  font-size: 30px;
  letter-spacing: -.01em;
  margin-bottom: var(--sp-3);
}
.section__sub {
  color: var(--ink-soft);
  max-width: 62ch;
  margin-bottom: var(--sp-6);
}
.section__head { margin-bottom: var(--sp-6); }

.eyebrow {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--clay);
  margin-bottom: var(--sp-3);
}

/* ---------- 4. 按钮 ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--sp-2);
  padding: 13px 24px;
  border: 1px solid transparent;
  border-radius: var(--r);
  font-size: 15px;
  font-weight: 600;
  line-height: 1;
  text-align: center;
  transition: background .18s var(--ease), color .18s var(--ease),
              border-color .18s var(--ease), transform .18s var(--ease);
  text-decoration: none;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }

.btn--primary { background: var(--clay); color: var(--white); }
.btn--primary:hover { background: var(--clay-dark); color: var(--white); }

.btn--ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line-strong);
}
.btn--ghost:hover { background: var(--white); border-color: var(--clay); color: var(--clay-dark); }

.btn--sm { padding: 9px 16px; font-size: 14px; }
.btn--block { width: 100%; }
.btn[disabled], .btn.is-disabled {
  opacity: .5;
  pointer-events: none;
}

/* ---------- 5. Header ---------- */
.header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(253, 248, 242, .94);
  backdrop-filter: saturate(160%) blur(10px);
  border-bottom: 1px solid var(--line);
}
.header__bar {
  display: flex;
  align-items: center;
  gap: var(--sp-4);
  min-height: 64px;
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 0;
  font-family: var(--font-serif);
  font-size: 21px;
  color: var(--ink);
  white-space: nowrap;
}
.brand:hover { text-decoration: none; }
.brand__mark { color: var(--clay); font-weight: 700; }
.brand__tag {
  font-family: var(--font-sans);
  font-size: 11px;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--ink-mute);
}

/* 主导航（≥1024 显示） */
.nav { display: none; }
.nav__list { display: flex; gap: var(--sp-1); align-items: center; }
.nav__item { position: relative; }
.nav__link,
.nav__toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 15px;
  color: var(--ink-soft);
  padding: 8px 12px;
  border: 0;
  border-bottom: 2px solid transparent;
  background: transparent;
  transition: color .18s var(--ease), border-color .18s var(--ease);
}
.nav__link:hover,
.nav__toggle:hover { color: var(--clay-dark); text-decoration: none; border-bottom-color: var(--clay); }
.nav__toggle::after {
  content: "";
  width: 0; height: 0;
  border-left: 4px solid transparent;
  border-right: 4px solid transparent;
  border-top: 4px solid currentColor;
  opacity: .7;
}

/* 桌面下拉菜单 */
.dropdown {
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  min-width: 180px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  box-shadow: var(--sh-md);
  padding: var(--sp-2);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-6px);
  transition: opacity .18s var(--ease), transform .18s var(--ease), visibility .18s;
}
.has-dropdown.is-open .dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}
.dropdown__link {
  display: block;
  padding: 10px 14px;
  font-size: 14px;
  color: var(--ink-soft);
  border-radius: var(--r);
}
.dropdown__link:hover { background: var(--cream); color: var(--clay-dark); text-decoration: none; }

.header__actions { margin-left: auto; display: flex; align-items: center; gap: var(--sp-3); }

/* 语言切换 */
.langswitch {
  display: inline-flex;
  border: 1px solid var(--line-strong);
  border-radius: var(--r);
  overflow: hidden;
  background: var(--white);
}
.langswitch__btn {
  padding: 7px 11px;
  border: 0;
  background: transparent;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .06em;
  color: var(--ink-mute);
  transition: background .16s var(--ease), color .16s var(--ease);
}
.langswitch__btn + .langswitch__btn { border-left: 1px solid var(--line); }
.langswitch__btn.is-active { background: var(--ink); color: var(--white); }
.langswitch__btn:not(.is-active):hover { background: var(--clay-soft); color: var(--clay-dark); }

/* 汉堡 */
.burger {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 42px;
  height: 42px;
  padding: 0 10px;
  border: 1px solid var(--line-strong);
  border-radius: var(--r);
  background: var(--white);
}
.burger__line {
  display: block;
  height: 2px;
  background: var(--ink);
  border-radius: 1px;
  transition: transform .22s var(--ease), opacity .18s var(--ease);
}
.burger[aria-expanded="true"] .burger__line:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger[aria-expanded="true"] .burger__line:nth-child(2) { opacity: 0; }
.burger[aria-expanded="true"] .burger__line:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* 移动抽屉 */
.drawer {
  position: fixed;
  inset: 0;
  z-index: 60;
  display: none;
}
.drawer.is-open { display: block; }
.drawer__scrim {
  position: absolute;
  inset: 0;
  background: rgba(42, 36, 32, .42);
  animation: fade .2s var(--ease);
}
.drawer__panel {
  position: absolute;
  top: 0;
  right: 0;
  width: min(300px, 82vw);
  height: 100%;
  background: var(--cream);
  border-left: 1px solid var(--line);
  padding: var(--sp-6) var(--sp-5);
  overflow-y: auto;
  animation: slidein .24s var(--ease);
}
.drawer__list { display: grid; gap: var(--sp-1); margin-top: var(--sp-5); }
.drawer__link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: 12px 0;
  font-family: var(--font-serif);
  font-size: 19px;
  color: var(--ink);
  border-bottom: 1px solid var(--line);
  background: transparent;
  border-left: 0; border-right: 0; border-top: 0;
}
.drawer__link:hover { color: var(--clay-dark); text-decoration: none; }
.drawer__close {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 36px;
  height: 36px;
  border: 1px solid var(--line-strong);
  border-radius: var(--r);
  background: var(--white);
  font-size: 20px;
  line-height: 1;
}

/* 移动端抽屉手风琴 */
.drawer__toggle::after {
  content: "";
  width: 0; height: 0;
  border-left: 5px solid transparent;
  border-right: 5px solid transparent;
  border-top: 5px solid currentColor;
  transition: transform .2s var(--ease);
}
.drawer__toggle[aria-expanded="true"]::after { transform: rotate(180deg); }
.drawer__sub {
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-height .28s var(--ease), opacity .2s var(--ease);
}
.drawer__toggle[aria-expanded="true"] + .drawer__sub,
.drawer__sub.is-open {
  max-height: 300px;
  opacity: 1;
}
.drawer__sublink {
  display: block;
  padding: 10px 0 10px 16px;
  font-size: 15px;
  color: var(--ink-soft);
  border-left: 2px solid var(--line);
}
.drawer__sublink:hover { color: var(--clay-dark); text-decoration: none; }

/* 固定导航偏移：锚点跳转不被 header 遮挡 */
section[id], .subcategory[id] { scroll-margin-top: 84px; }

@keyframes fade { from { opacity: 0; } to { opacity: 1; } }
@keyframes slidein { from { transform: translateX(100%); } to { transform: translateX(0); } }

/* ---------- 6. Hero ---------- */
.hero {
  padding-block: var(--sp-7) var(--sp-8);
  background:
    radial-gradient(120% 80% at 88% 6%, var(--clay-soft) 0%, transparent 58%),
    linear-gradient(180deg, var(--cream) 0%, var(--cream-deep) 100%);
  border-bottom: 1px solid var(--line);
}
.hero__grid { display: grid; gap: var(--sp-6); }

.hero--banner {
  position: relative;
  min-height: 420px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background:
    linear-gradient(180deg, rgba(253, 248, 242, .62) 0%, rgba(253, 248, 242, .72) 100%),
    url('../img/common/banner.jpg?v=2');
  background-size: cover;
  background-position: center 30%;
  background-repeat: no-repeat;
}
.hero--banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background: rgba(253, 248, 242, .32);
  pointer-events: none;
}
.hero--banner .hero__inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--sp-4);
}
.hero--banner .hero__title { margin-bottom: 0; }
.hero--banner .hero__sub { margin-bottom: 0; }
.hero--banner .hero__note {
  margin-top: var(--sp-2);
  font-size: 12px;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--ink-mute);
}

.hero__eyebrow { color: var(--clay-dark); }
.hero__title {
  font-size: 40px;
  letter-spacing: -.02em;
  margin-bottom: var(--sp-4);
}
.hero__sub {
  font-size: 17px;
  color: var(--ink-soft);
  max-width: 56ch;
  margin-bottom: var(--sp-5);
}
.hero__cta { display: flex; flex-wrap: wrap; gap: var(--sp-3); }
.hero__note {
  margin-top: var(--sp-4);
  font-size: 13px;
  color: var(--ink-mute);
}

/* Hero 视觉占位（替换真图后自动让位给 <img>） */
.hero__visual {
  position: relative;
  border: 1px solid var(--line-strong);
  border-radius: var(--r-lg);
  overflow: hidden;
  background: var(--white);
  box-shadow: var(--sh-md);
}
.hero__visual img { width: 100%; height: 100%; object-fit: cover; }
.ph-hero {
  aspect-ratio: 4 / 3;
  display: grid;
  place-items: center;
  gap: var(--sp-2);
  background:
    repeating-linear-gradient(135deg, var(--clay-soft) 0 14px, var(--cream) 14px 28px);
}
.ph-hero__label {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--clay-dark);
  background: rgba(255, 255, 255, .82);
  padding: 6px 14px;
  border-radius: var(--r);
}

/* ---------- 7. About ---------- */
.aboutgrid { display: grid; gap: var(--sp-4); }
.aboutcard {
  padding: var(--sp-5);
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  border-left: 3px solid var(--clay);
}
.aboutcard__title {
  font-family: var(--font-serif);
  font-size: 20px;
  margin-bottom: var(--sp-2);
}
.aboutcard__desc { font-size: 15px; color: var(--ink-soft); }

/* ---------- 8. 子分类 ---------- */
.subcategory { margin-top: var(--sp-7); }
.subcategory:first-of-type { margin-top: 0; }
.subcategory__title {
  font-family: var(--font-serif);
  font-size: 24px;
  margin-bottom: var(--sp-4);
  padding-bottom: var(--sp-2);
  border-bottom: 1px solid var(--line);
}

/* ---------- 9. 产品横向滚动轮播 ---------- */
.pcarousel {
  position: relative;
  display: flex;
  align-items: stretch;
  gap: var(--sp-3);
  overflow: hidden;
}
.pcarousel__arrow {
  flex: none;
  align-self: center;
  display: inline-grid;
  place-items: center;
  width: 40px;
  height: 40px;
  padding: 0;
  border: 1px solid var(--line-strong);
  border-radius: var(--r);
  background: var(--white);
  color: var(--ink);
  transition: opacity .18s var(--ease), background .18s var(--ease), border-color .18s var(--ease);
}
.pcarousel__arrow:hover:not(:disabled) { background: var(--cream); border-color: var(--clay); color: var(--clay-dark); }
.pcarousel__arrow:disabled { opacity: .35; cursor: default; }
.pcarousel__arrow svg { display: block; }

.pgrid {
  flex: 1 1 auto;
  min-width: 0;
  display: flex;
  flex-wrap: nowrap;
  gap: var(--sp-4);
  overflow-x: auto;
  scroll-behavior: smooth;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}
.pgrid::-webkit-scrollbar { display: none; }

.pcard {
  flex: 0 0 calc((100% - var(--sp-4)) / 2); /* 默认 2 个 */
  scroll-snap-align: start;
  min-width: 150px;
  display: flex;
  flex-direction: column;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
  transition: transform .2s var(--ease), box-shadow .2s var(--ease), border-color .2s var(--ease);
}
.pcard:hover {
  transform: translateY(-2px);
  box-shadow: var(--sh-md);
  border-color: var(--line-strong);
}

.pcard__media {
  position: relative;
  aspect-ratio: 1 / 1;
  background: var(--cream-deep);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}
.pcard__media img { width: 100%; height: 100%; object-fit: cover; }

/* 4 列布局：产品卡参数已移到下方规格表，卡片仅保留卖点 */
.pcard__body {
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
  padding: var(--sp-3);
  flex: 1;
}
.pcard__foot { margin-top: auto; padding: var(--sp-3); border-top: 1px solid var(--line); background: var(--cream); }
.pcard__name { font-size: 17px; line-height: 1.3; }
.pcard__tagline { font-size: 13px; color: var(--ink-mute); }
.pcard__bullets { display: grid; gap: 5px; margin-top: 2px; }
.pcard__bullets li {
  position: relative;
  padding-left: 16px;
  font-size: 13px;
  color: var(--ink-soft);
}
.pcard__bullets li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 6px;
  background: var(--sage);
  border-radius: 1px;
}

.ph {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  text-align: center;
  padding: var(--sp-4);
  background:
    repeating-linear-gradient(135deg, var(--cream-deep) 0 12px, var(--white) 12px 24px);
  color: var(--ink-mute);
}
.ph__code {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .1em;
  color: var(--clay-dark);
  background: rgba(255, 255, 255, .86);
  padding: 4px 10px;
  border-radius: var(--r);
}
.ph__hint { display: block; margin-top: 6px; font-size: 11px; letter-spacing: .04em; }

.pempty {
  padding: var(--sp-7) var(--sp-4);
  text-align: center;
  color: var(--ink-mute);
  border: 1px dashed var(--line-strong);
  border-radius: var(--r-lg);
  background: var(--white);
}

/* ---------- 10. 规格对比表 ---------- */
.spectable-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.spectable {
  width: 100%;
  min-width: 640px;
  border-collapse: collapse;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
  font-size: 14px;
}
.spectable caption { display: none; }
.spectable th, .spectable td {
  padding: 13px var(--sp-4);
  text-align: left;
  border-bottom: 1px solid var(--line);
  vertical-align: top;
}
.spectable thead th {
  background: var(--ink);
  color: var(--white);
  font-family: var(--font-sans);
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
}
.spectable tbody tr:last-child td { border-bottom: 0; }
.spectable tbody tr:nth-child(even) { background: var(--cream); }
.spectable td:first-child { font-weight: 600; }
.spectable td.is-empty { color: var(--line-strong); }
.spectable__hint { margin-top: var(--sp-3); font-size: 13px; color: var(--ink-mute); }

/* 窄屏：表格转卡片堆叠 */
.speccards { display: grid; gap: var(--sp-3); }
.speccard {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: var(--sp-4);
}
.speccard__name { font-family: var(--font-serif); font-size: 18px; margin-bottom: var(--sp-2); }
.speccard dl { display: grid; gap: 4px; margin: 0; font-size: 14px; }
.speccard__row { display: flex; justify-content: space-between; gap: var(--sp-3); }
.speccard__row dt { color: var(--ink-mute); }
.speccard__row dd { margin: 0; text-align: right; }
.speccard__row dd.is-empty { color: var(--line-strong); }

/* ---------- 11. 为什么 PazHome ---------- */
.whygrid { display: grid; grid-template-columns: 1fr; gap: var(--sp-4); }
.whycard {
  padding: var(--sp-5);
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  border-left: 3px solid var(--clay);
}
.whycard__num {
  display: block;
  font-family: var(--font-serif);
  font-size: 14px;
  letter-spacing: .1em;
  color: var(--clay);
  margin-bottom: var(--sp-2);
}
.whycard__title { font-size: 20px; margin-bottom: var(--sp-2); }
.whycard__desc { font-size: 15px; color: var(--ink-soft); }

/* ---------- 12. 评价 ---------- */
.revgrid { display: grid; grid-template-columns: 1fr; gap: var(--sp-4); }
.quote {
  padding: var(--sp-5);
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
}
.quote__text { font-family: var(--font-serif); font-size: 17px; line-height: 1.55; }
.quote__meta { margin-top: var(--sp-3); font-size: 13px; color: var(--ink-mute); }

/* ---------- 13. FAQ 手风琴 ---------- */
.faq { display: grid; gap: var(--sp-2); }
.faq__item {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  overflow: hidden;
}
.faq__q {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
  width: 100%;
  padding: var(--sp-4) var(--sp-5);
  border: 0;
  background: transparent;
  text-align: left;
  font-family: var(--font-serif);
  font-size: 17px;
  line-height: 1.4;
}
.faq__q:hover { background: var(--cream); }
.faq__icon {
  flex: none;
  position: relative;
  width: 16px;
  height: 16px;
}
.faq__icon::before, .faq__icon::after {
  content: "";
  position: absolute;
  background: var(--clay);
  transition: transform .22s var(--ease), opacity .18s var(--ease);
}
.faq__icon::before { top: 7px; left: 0; width: 16px; height: 2px; }
.faq__icon::after  { left: 7px; top: 0; width: 2px; height: 16px; }
.faq__q[aria-expanded="true"] .faq__icon::after { transform: scaleY(0); opacity: 0; }

.faq__a {
  display: grid;
  grid-template-rows: 0fr;
  transition: grid-template-rows .26s var(--ease);
}
.faq__a > div { overflow: hidden; }
.faq__a p {
  padding: 0 var(--sp-5) var(--sp-5);
  font-size: 15px;
  color: var(--ink-soft);
}
.faq__item.is-open .faq__a { grid-template-rows: 1fr; }

/* ---------- 14. Contact ---------- */
.contactgrid { display: grid; gap: var(--sp-4); }
.contactcard {
  display: flex;
  flex-direction: column;
  gap: var(--sp-1);
  padding: var(--sp-5);
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  color: var(--ink);
  transition: transform .18s var(--ease), box-shadow .18s var(--ease), border-color .18s var(--ease);
}
.contactcard:hover {
  text-decoration: none;
  transform: translateY(-2px);
  box-shadow: var(--sh-md);
  border-color: var(--line-strong);
}
.contactcard__label {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--clay);
}
.contactcard__value {
  font-family: var(--font-serif);
  font-size: 20px;
  word-break: break-word;
}

/* ---------- 15. 结尾 CTA ---------- */
.closer {
  padding-block: var(--sp-8);
  background: var(--ink);
  color: var(--cream);
  text-align: center;
}
.closer__title {
  font-size: 32px;
  letter-spacing: -.01em;
  margin-bottom: var(--sp-3);
}
.closer__sub {
  color: rgba(253, 248, 242, .74);
  max-width: 54ch;
  margin: 0 auto var(--sp-5);
}
.closer__note {
  margin-top: var(--sp-4);
  font-size: 13px;
  color: rgba(253, 248, 242, .55);
}
.closer .btn--primary { background: var(--clay); }
.closer .btn--primary:hover { background: var(--white); color: var(--ink); }

/* ---------- 16. Footer ---------- */
.footer {
  padding-block: var(--sp-6);
  background: var(--cream-deep);
  border-top: 1px solid var(--line);
  font-size: 14px;
  color: var(--ink-soft);
}
.footer__bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
}
.footer__links { display: flex; flex-wrap: wrap; gap: var(--sp-4); }
.footer a { color: var(--ink-soft); }
.footer a:hover { color: var(--clay-dark); }

/* ---------- 17. 响应式断点（移动优先） ---------- */

/* ≥ 480：产品 2 列 */
@media (min-width: 480px) {
  :root { --gutter: 24px; }
  .pcard { flex: 0 0 calc((100% - var(--sp-4)) / 2); }
  .hero__title { font-size: 46px; }
}

/* ≥ 768：规格表恢复表格形态，why 2 列，contact 2 列，产品 3 列 */
@media (min-width: 768px) {
  :root { --sp-7: 56px; --sp-8: 72px; }
  .section__title { font-size: 36px; }
  .hero__title { font-size: 52px; }
  .closer__title { font-size: 40px; }
  .whygrid { grid-template-columns: repeat(2, 1fr); }
  .revgrid { grid-template-columns: repeat(2, 1fr); }
  .aboutgrid { grid-template-columns: repeat(2, 1fr); }
  .contactgrid { grid-template-columns: repeat(2, 1fr); }
  .pcard { flex: 0 0 calc((100% - 2 * var(--sp-4)) / 3); }
  .pcard__body { padding: var(--sp-4); }
  .pcard__name { font-size: 18px; }
  .pcard__tagline { font-size: 14px; }
  .pcard__bullets { gap: 6px; }
  .pcard__bullets li { padding-left: 18px; font-size: 14px; }
  .pcard__bullets li::before { top: 9px; width: 7px; height: 7px; }
  .hero--banner { min-height: 520px; }
  .ph-hero { aspect-ratio: 16 / 10; }
}

/* ≥ 1024：横排导航、Hero 2:1 非对称、产品 4 列 */
@media (min-width: 1024px) {
  :root { --gutter: 32px; }
  .nav { display: block; }
  .burger { display: none; }

  .hero__grid {
    grid-template-columns: 1.35fr 1fr;
    align-items: center;
    gap: var(--sp-7);
  }
  .hero__title { font-size: 56px; }

  .pcard { flex: 0 0 calc((100% - 3 * var(--sp-5)) / 4); }
  .pgrid { gap: var(--sp-5); }

  .whygrid { grid-template-columns: repeat(4, 1fr); }
  .revgrid { grid-template-columns: repeat(3, 1fr); }
  .contactgrid { grid-template-columns: repeat(3, 1fr); }

  /* 窄屏规格卡片隐藏，宽屏表格显示 */
  .spectable-wrap { display: block; }
}

/* < 1024：规格表转卡片 */
@media (max-width: 1023px) {
  .spectable-wrap { display: none; }
  .speccards { display: grid; }
}
@media (min-width: 1024px) {
  .speccards { display: none; }
}

/* ≥ 1280：留白放大 */
@media (min-width: 1280px) {
  :root { --sp-7: 64px; --sp-8: 88px; }
  .hero__title { font-size: 60px; }
  .section__title { font-size: 38px; }
  .pgrid { gap: var(--sp-6); }
  .pcard { flex: 0 0 calc((100% - 3 * var(--sp-6)) / 4); }
  .hero--banner { min-height: 600px; }
}

/* ---------- 18. 可访问性 / 打印 ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
}
.visually-hidden {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}