/* ==========================================================================
   AikTryee — 主题：Anker 风（近黑 + 冷灰白底 + 品牌蓝）
   参考 anker.com 的实际取色：近黑 #080a0f、浅灰底 #f5f5f7、品牌蓝 #00a9e0。
   规格数字统一走等宽字体，图纸网格保留（现在读起来是「技术蓝图」而不是「电路板红」）。

   改主题只需要动下面这组令牌。--laser 是历史变量名，语义已经是「品牌主色」。
   ========================================================================== */

:root {
  /* 底色：亚马逊用 #EAEDED 页面底 + 纯白卡片，这里照搬 */
  --paper: #eaeded;
  --paper-2: #f0f2f2;
  --card: #ffffff;
  /* 深色导航：亚马逊顶栏 #131921、二级栏 #232F3E、展开项 #37475A */
  --graphite: #131921;
  --graphite-2: #232f3e;
  --graphite-3: #37475a;

  /* 文字 */
  --ink: #0f1111;
  --ink-2: #565959;
  --muted: #6f7373;
  --on-dark: #ffffff;
  --on-dark-2: #d5dbdb;

  /* 线：亚马逊标志性的 1px #D5D9D9 边框 */
  --line: #d5d9d9;
  --line-2: #c7ccce;
  --line-dark: #2f3d4c;

  /* 品牌主色：亚马逊链接蓝 #007185，hover 转橙红 #C7511F */
  --laser: #007185;
  --laser-2: #005f6e;
  --laser-soft: #e7f4f6;
  --laser-dark: #005a66;
  /* 深色底上的装饰色：暖橙，替代原来的亮青 */
  --cyan: #48a3b5;
  --cyan-soft: #ffcf7a;

  /* 评分星：亚马逊的 #FFA41C */
  --star: #ffa41c;
  --star-2: #ffb020;
  --star-off: #e3e6e6;

  /* 购买 CTA：亚马逊 Add to Cart 黄 #FFD814 / Buy Now 橙 #FFA41C */
  --buy: #ffd814;
  --buy-line: #fcd200;
  --buy-hover: #f7ca00;
  --buy-alt: #ffa41c;
  --buy-alt-line: #ff8f00;
  --buy-ink: #0f1111;
  --buy-soft: #fff8e4;

  /* 语义色：亚马逊的绿色 In Stock / 促销红 */
  --ok: #067d62;
  --danger: #b12704;

  /* 字体 */
  --sans: "Inter", "Helvetica Neue", -apple-system, BlinkMacSystemFont, "Segoe UI", Arial,
    "PingFang SC", "Microsoft YaHei", sans-serif;
  --mono: "IBM Plex Mono", "JetBrains Mono", ui-monospace, "SFMono-Regular", Consolas,
    "Cascadia Mono", monospace;

  /* 字号 */
  --fs-hero: clamp(38px, 5vw, 66px);
  --fs-h2: clamp(27px, 3vw, 42px);
  --fs-h3: clamp(20px, 1.9vw, 26px);
  --fs-body: 16px;
  --fs-small: 13.5px;
  --fs-micro: 11.5px;

  --wrap: 1240px;
  --pad: 28px;
  --sec-y: clamp(56px, 6.4vw, 96px);

  --shadow: 0 1px 2px rgba(8, 10, 15, 0.045), 0 12px 32px -18px rgba(8, 10, 15, 0.22);
  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

/* ------------------------------- 基础 ------------------------------- */

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  background: var(--paper);
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: var(--fs-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

main {
  flex: 1 0 auto;
}

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

img {
  height: auto;
}

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

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

h1,
h2,
h3,
h4 {
  margin: 0;
  font-weight: 600;
  letter-spacing: -0.022em;
  line-height: 1.14;
}

p {
  margin: 0;
}

ul,
ol,
dl {
  margin: 0;
  padding: 0;
  list-style: none;
}

::selection {
  background: var(--laser);
  color: #fff;
}

:focus-visible {
  outline: 2px solid var(--laser);
  outline-offset: 3px;
}

/* 无障碍：键盘用户跳过导航（accessibility 页里承诺过的能力） */
.skip-link {
  position: fixed;
  top: -100px;
  left: 12px;
  z-index: 999;
  padding: 10px 16px;
  background: var(--laser, #0084b3);
  color: #fff;
  border-radius: 0 0 6px 6px;
  font-size: 14px;
  text-decoration: none;
}
.skip-link:focus {
  top: 0;
}

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

.wrap--narrow {
  max-width: 784px;
}

.ic {
  width: 16px;
  height: 16px;
  flex: none;
}

.eyebrow {
  font-family: var(--mono);
  font-size: var(--fs-micro);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--laser);
  margin-bottom: 14px;
}

.eyebrow--light {
  color: var(--cyan-soft);
}

.price {
  font-family: var(--sans);
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--ink);
}

.price--lg {
  font-size: 32px;
}

.link-more {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--mono);
  font-size: var(--fs-micro);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border-bottom: 1px solid currentColor;
  padding-bottom: 2px;
  transition: color 0.2s var(--ease), gap 0.2s var(--ease);
}

.link-more:hover {
  color: #c7511f;
  gap: 10px;
}

.link-more--light {
  color: var(--on-dark);
}

.empty {
  color: var(--muted);
  font-size: var(--fs-small);
}

/* ------------------------------- 按钮 ------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  font-size: 14px;
  font-weight: 600;
  border: 1px solid transparent;
  border-radius: 8px;
  transition: transform 0.18s var(--ease), background 0.18s var(--ease), color 0.18s var(--ease),
    border-color 0.18s var(--ease), box-shadow 0.18s var(--ease);
}

.btn:hover {
  transform: translateY(-1px);
}

/* 主按钮 = 亚马逊 Add to Cart 同款黄底深字，全站最重的行动召唤 */
.btn-primary {
  background: linear-gradient(180deg, #ffe45c 0%, var(--buy) 62%, #f5d000 100%);
  border-color: var(--buy-line);
  color: var(--buy-ink);
  box-shadow: 0 2px 0 rgba(120, 90, 0, 0.16), 0 4px 12px rgba(255, 216, 20, 0.24);
}

.btn-primary:hover {
  background: linear-gradient(180deg, #ffe97a 0%, var(--buy-hover) 100%);
  border-color: #e8bd00;
  color: var(--buy-ink);
  box-shadow: 0 3px 0 rgba(120, 90, 0, 0.2), 0 8px 18px rgba(255, 216, 20, 0.32);
}

.btn-ghost {
  border-color: var(--line);
  color: var(--ink);
  background: var(--card);
  box-shadow: 0 1px 2px rgba(15, 17, 17, 0.06);
}

.btn-ghost:hover {
  border-color: var(--line-2);
  background: #f7fafa;
}

/* 深色带上的次级按钮 */
.btn-light {
  background: var(--on-dark);
  border-color: var(--on-dark);
  color: var(--graphite);
}

.btn-light:hover {
  background: var(--buy);
  border-color: var(--buy-line);
  color: var(--buy-ink);
}

.btn-sm {
  padding: 9px 16px;
  font-size: 13px;
}

/* --------------------- 购买按钮：亚马逊同款 --------------------- */
/* 亚马逊产品页的 Add to Cart 是 #FFD814 黄底深字，Buy Now 是 #FFA41C 橙底深字。
   这里两个色都用上：Amazon 用黄（主渠道、最醒目），其余渠道用橙，形成层级但都够亮。 */
.btn-buy {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 12px;
  width: 100%;
  padding: 13px 16px;
  border: 1px solid var(--buy-line);
  border-radius: 8px;
  background: linear-gradient(180deg, #ffe45c 0%, var(--buy) 62%, #f5d000 100%);
  color: var(--buy-ink);
  text-align: left;
  font-size: 15px;
  font-weight: 700;
  line-height: 1.25;
  box-shadow: 0 2px 0 rgba(120, 90, 0, 0.14), 0 4px 12px rgba(255, 216, 20, 0.2);
}

.btn-buy-txt {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
}

.btn-buy-txt strong {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: -0.005em;
}

.btn-buy small {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: rgba(15, 17, 17, 0.66);
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.btn-buy .ic {
  width: 18px;
  height: 18px;
  max-width: none;
  flex: none;
  opacity: 0.72;
  transition: transform 0.18s var(--ease), opacity 0.18s var(--ease);
}

.btn-buy:hover {
  border-color: #e8bd00;
  background: linear-gradient(180deg, #ffe97a 0%, var(--buy-hover) 100%);
  color: var(--buy-ink);
  box-shadow: 0 3px 0 rgba(120, 90, 0, 0.18), 0 8px 18px rgba(255, 216, 20, 0.3);
}

.btn-buy:hover small {
  color: rgba(15, 17, 17, 0.78);
}

.btn-buy:hover .ic {
  transform: translateX(3px);
  opacity: 1;
}

.btn-buy:active {
  transform: translateY(0);
  box-shadow: 0 1px 0 rgba(120, 90, 0, 0.18);
}

/* 第二个及之后的渠道（Walmart / TikTok Shop）用 Buy Now 橙，仍是亚马逊官方按钮色 */
.btn-buy[data-market="walmart"],
.btn-buy[data-market="tiktok"] {
  border-color: var(--buy-alt-line);
  background: linear-gradient(180deg, #ffb84d 0%, var(--buy-alt) 62%, #f59500 100%);
  box-shadow: 0 2px 0 rgba(140, 78, 0, 0.16), 0 4px 12px rgba(255, 164, 28, 0.22);
}

.btn-buy[data-market="walmart"]:hover,
.btn-buy[data-market="tiktok"]:hover {
  border-color: #e07f00;
  background: linear-gradient(180deg, #ffc266 0%, #ff9500 100%);
  box-shadow: 0 3px 0 rgba(140, 78, 0, 0.2), 0 8px 18px rgba(255, 164, 28, 0.32);
}

/* 单词按钮版（where-to-buy 卡片） */
.btn-amazon {
  border-radius: 8px;
  border-color: var(--buy-line);
  background: linear-gradient(180deg, #ffe45c 0%, var(--buy) 62%, #f5d000 100%);
  color: var(--buy-ink);
  font-weight: 700;
  box-shadow: 0 2px 0 rgba(120, 90, 0, 0.14), 0 4px 12px rgba(255, 216, 20, 0.2);
}

.btn-amazon:hover {
  border-color: #e8bd00;
  background: linear-gradient(180deg, #ffe97a 0%, var(--buy-hover) 100%);
  color: var(--buy-ink);
  box-shadow: 0 3px 0 rgba(120, 90, 0, 0.18), 0 8px 18px rgba(255, 216, 20, 0.3);
}

.btn-amazon .ic {
  max-width: none;
}

/* ------------------------------- 页头 ------------------------------- */

.site-head {
  position: sticky;
  top: 0;
  z-index: 60;
  background: var(--graphite);
  border-bottom: 1px solid var(--graphite-2);
}

.head-rule {
  background: var(--graphite-2);
  color: var(--on-dark-2);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.head-rule-inner {
  display: flex;
  align-items: center;
  gap: 26px;
  height: 32px;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  white-space: nowrap;
  overflow: hidden;
}

.head-rule-link {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  color: var(--on-dark);
}

.head-rule-link:hover {
  color: var(--cyan-soft);
}

.head-main {
  display: flex;
  align-items: center;
  gap: 30px;
  height: 68px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex: none;
}

.brand-mark {
  display: inline-flex;
  align-items: flex-end;
  gap: 3px;
  height: 20px;
}

.brand-mark i {
  display: block;
  width: 3px;
  background: var(--on-dark);
}

.brand-mark i:nth-child(1) {
  height: 11px;
}

.brand-mark i:nth-child(2) {
  height: 20px;
  background: var(--buy);
}

.brand-mark i:nth-child(3) {
  height: 15px;
}

.brand-word {
  font-size: 21px;
  font-weight: 650;
  letter-spacing: -0.03em;
  color: var(--on-dark);
}

.nav {
  display: flex;
  align-items: center;
  gap: 26px;
  margin-left: 8px;
}

.nav-link {
  position: relative;
  font-family: var(--mono);
  font-size: 11.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.86);
  padding: 6px 0;
  transition: color 0.18s var(--ease);
}

.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  right: 100%;
  bottom: 0;
  height: 2px;
  background: var(--buy);
  transition: right 0.22s var(--ease);
}

.nav-link:hover,
.nav-link.is-active {
  color: #fff;
}

.nav-link:hover::after,
.nav-link.is-active::after {
  right: 0;
}

.head-tools {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-left: auto;
}

.head-cta {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 10px 16px;
  background: linear-gradient(180deg, #ffe45c 0%, var(--buy) 62%, #f5d000 100%);
  border: 1px solid var(--buy-line);
  color: var(--buy-ink);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  border-radius: 8px;
  transition: background 0.18s var(--ease), box-shadow 0.18s var(--ease);
}

.head-cta:hover {
  background: linear-gradient(180deg, #ffe97a 0%, var(--buy-hover) 100%);
  color: var(--buy-ink);
  box-shadow: 0 4px 12px rgba(255, 216, 20, 0.3);
}

.nav-toggle {
  display: none;
  width: 38px;
  height: 38px;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: 6px;
  color: var(--on-dark);
}

/* ------------------------------- 首页 Hero ------------------------------- */

.hero {
  position: relative;
  padding-top: clamp(40px, 5vw, 72px);
  background-image: linear-gradient(to right, rgba(8, 10, 15, 0.05) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(8, 10, 15, 0.05) 1px, transparent 1px);
  background-size: 28px 28px;
  background-position: -1px -1px;
  border-bottom: 1px solid var(--line);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1.06fr);
  gap: clamp(28px, 4vw, 64px);
  align-items: center;
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 0 var(--pad) clamp(32px, 4vw, 56px);
}

.hero-title {
  font-size: var(--fs-hero);
  letter-spacing: -0.035em;
  max-width: 15ch;
}

.hero-text {
  margin-top: 20px;
  max-width: 46ch;
  color: var(--ink-2);
  font-size: 16.5px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.hero-actions--center {
  justify-content: center;
}

.hero-media {
  position: relative;
}

.frame {
  position: relative;
  background: var(--paper-2);
  border: 1px solid var(--line-2);
  overflow: hidden;
}

.frame img {
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.tick {
  position: absolute;
  width: 14px;
  height: 14px;
  border: 1px solid var(--ink);
  opacity: 0.5;
}

.tick.tl {
  top: 10px;
  left: 10px;
  border-right: 0;
  border-bottom: 0;
}

.tick.tr {
  top: 10px;
  right: 10px;
  border-left: 0;
  border-bottom: 0;
}

.tick.bl {
  bottom: 10px;
  left: 10px;
  border-right: 0;
  border-top: 0;
}

.tick.br {
  bottom: 10px;
  right: 10px;
  border-left: 0;
  border-top: 0;
}

.hero-chip {
  position: absolute;
  left: -14px;
  bottom: -18px;
  background: var(--graphite);
  color: var(--on-dark);
  padding: 14px 18px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  box-shadow: var(--shadow);
}

.chip-label {
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--on-dark-2);
}

.chip-value {
  font-family: var(--mono);
  font-size: 19px;
  font-weight: 600;
}

.chip-value small {
  font-size: 11px;
  color: var(--on-dark-2);
  margin-left: 5px;
  font-weight: 400;
}

/* 品类筛选（产品列表页） */
.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 26px;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 14px;
  border: 1px solid var(--line-2);
  background: var(--card);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  text-decoration: none;
  border-radius: 2px;
  transition: border-color 0.15s ease, background 0.15s ease, color 0.15s ease;
}

.chip span {
  font-size: 10px;
  color: var(--muted);
  letter-spacing: 0.04em;
}

.chip:hover {
  border-color: var(--graphite);
  color: var(--ink);
}

.chip.is-on {
  background: var(--graphite);
  border-color: var(--graphite);
  color: var(--on-dark);
}

.chip.is-on span {
  color: var(--on-dark-2);
}

.kpi-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.55);
}

.kpi {
  padding: 22px var(--pad);
  border-right: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.kpi:last-child {
  border-right: 0;
}

.kpi-val {
  font-family: var(--mono);
  font-size: 26px;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.kpi-val em {
  font-style: normal;
  font-size: 15px;
  color: var(--laser);
  margin-left: 1px;
}

/* 评分那颗星跟星级条同色，别跟着单位一起变蓝 */
.kpi-val em.is-star {
  color: var(--star);
  font-size: 17px;
}

.kpi-label {
  font-size: 12px;
  color: var(--muted);
  line-height: 1.4;
}

/* ------------------------------- 区块骨架 ------------------------------- */

.section {
  padding: var(--sec-y) 0;
}

.section--tight {
  padding: calc(var(--sec-y) * 0.72) 0;
}

.section--cats {
  background: var(--paper);
  border-bottom: 1px solid var(--line);
}

.section--news {
  background: var(--paper-2);
  border-top: 1px solid var(--line);
}

.section--related {
  border-top: 1px solid var(--line);
}

.sec-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 32px;
  margin-bottom: 36px;
}

.sec-title {
  font-size: var(--fs-h2);
  letter-spacing: -0.03em;
}

.sec-text {
  margin-top: 12px;
  max-width: 52ch;
  color: var(--ink-2);
}

.sec-aside {
  flex: none;
  padding-bottom: 6px;
}

.block-title {
  font-size: var(--fs-h3);
  margin-bottom: 20px;
}

.page-head {
  padding: clamp(44px, 5vw, 76px) 0 clamp(28px, 3vw, 40px);
  background-image: linear-gradient(to right, rgba(8, 10, 15, 0.045) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(8, 10, 15, 0.045) 1px, transparent 1px);
  background-size: 28px 28px;
  border-bottom: 1px solid var(--line);
}

.page-head--center {
  text-align: center;
}

.page-title {
  font-size: clamp(32px, 4vw, 54px);
  letter-spacing: -0.035em;
  max-width: 22ch;
}

.page-head--center .page-title {
  margin: 0 auto;
}

.page-lede {
  margin-top: 18px;
  max-width: 60ch;
  color: var(--ink-2);
  font-size: 16.5px;
}

.page-head--center .page-lede {
  margin-left: auto;
  margin-right: auto;
}

/* ------------------------------- 分类卡 ------------------------------- */

.cat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.cat {
  position: relative;
  display: block;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 1px 2px rgba(15, 17, 17, 0.04);
  transition: border-color 0.2s var(--ease), transform 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.cat:hover {
  border-color: var(--line-2);
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(15, 17, 17, 0.12);
}

.cat img {
  width: 100%;
  aspect-ratio: 3 / 2;
  object-fit: cover;
  filter: saturate(0.92);
  transition: transform 0.5s var(--ease);
}

.cat:hover img {
  transform: scale(1.03);
}

.cat-idx {
  position: absolute;
  top: 14px;
  left: 14px;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.12em;
  background: var(--graphite);
  color: var(--on-dark);
  padding: 3px 7px;
}

.cat-name {
  display: block;
  padding: 18px 18px 4px;
  font-size: 19px;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.cat-meta {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 0 18px 18px;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

.cat:hover .cat-meta {
  color: var(--laser);
}

/* ------------------------------- 产品卡 ------------------------------- */

.pgrid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.pgrid--full {
  grid-template-columns: repeat(3, 1fr);
}

.pcard {
  display: flex;
  flex-direction: column;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 1px 2px rgba(15, 17, 17, 0.04);
  transition: border-color 0.2s var(--ease), transform 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.pcard:hover {
  border-color: var(--line-2);
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(15, 17, 17, 0.12);
}

.pcard-media {
  position: relative;
  background: var(--paper-2);
  overflow: hidden;
}

.pcard-media img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  transition: transform 0.6s var(--ease);
}

.pcard:hover .pcard-media img {
  transform: scale(1.035);
}

.card-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 2;
  background: var(--buy-alt);
  color: var(--buy-ink);
  font-family: var(--mono);
  font-size: 9.5px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 4px 8px;
  border-radius: 4px;
}

.pcard-video {
  position: absolute;
  bottom: 12px;
  right: 12px;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: rgba(8, 10, 15, 0.84);
  color: #fff;
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  padding: 4px 8px;
}

.pcard-video .ic {
  width: 11px;
  height: 11px;
}

.pcard-body {
  display: flex;
  flex-direction: column;
  gap: 9px;
  padding: 18px 18px 16px;
  flex: 1;
}

.pcard-name {
  font-size: 16.5px;
  line-height: 1.3;
  letter-spacing: -0.015em;
}

.pcard-rate {
  display: flex;
  align-items: center;
  gap: 6px;
}

.pcard-spec {
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--muted);
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.pcard-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px solid var(--line);
}

.pcard-go {
  color: var(--muted);
  transition: transform 0.2s var(--ease), color 0.2s var(--ease);
}

.pcard:hover .pcard-go {
  color: var(--laser);
  transform: translateX(3px);
}

/* 卡片上的迷你 CTA，视觉上等同亚马逊列表页的「See options」黄色按钮 */
.pcard-cta {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 6px 12px;
  border: 1px solid var(--buy-line);
  border-radius: 6px;
  background: var(--buy);
  color: var(--buy-ink);
  font-size: 11.5px;
  font-weight: 700;
  letter-spacing: 0.01em;
  transition: background 0.18s var(--ease), box-shadow 0.18s var(--ease);
}

.pcard-cta .ic {
  width: 13px;
  height: 13px;
  max-width: none;
}

.pcard:hover .pcard-cta {
  background: var(--buy-hover);
  box-shadow: 0 4px 10px rgba(255, 216, 20, 0.3);
}

/* ------------------------------- 星级 ------------------------------- */

.rt {
  display: inline-flex;
  gap: 2px;
  --rt-size: 13px;
}

.rt-star {
  position: relative;
  width: var(--rt-size);
  height: var(--rt-size);
  display: inline-block;
  flex: none;
}

.rt-bg,
.rt-fg {
  position: absolute;
  inset: 0;
  overflow: hidden;
  display: block;
}

.rt-bg {
  color: var(--star-off);
}

.rt-fg {
  color: var(--star);
  white-space: nowrap;
}

.rt-star .ic {
  width: var(--rt-size);
  height: var(--rt-size);
  /* 关键：全局 svg{max-width:100%} 会把「只有 50% 宽的高亮层」里的星压成小星星，
     必须解除，让它保持原尺寸、由 .rt-fg 的 overflow:hidden 裁成半颗 */
  max-width: none;
  display: block;
}

/* 半星：正好切在星形的垂直中线上，左右对称，看起来是「半个星亮」 */
.rt-star--half .rt-fg {
  /* 切边留 0.5px 底衬，避免高分屏上出现虚边 */
  box-shadow: inset -0.5px 0 0 rgba(0, 0, 0, 0.06);
}

.rt-num {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 600;
  margin-left: 7px;
  color: var(--laser);
}

.rt-count {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
  margin-left: 5px;
}

/* 产品卡片上的星级略大一号，4 星半也能一眼看清 */
.pcard-rate .rt-num {
  font-size: 13px;
  letter-spacing: -0.02em;
}

.pcard-rate .rt-count {
  font-size: 11.5px;
}

/* ------------------------------- 工艺带 ------------------------------- */

.band {
  background: var(--graphite);
  color: var(--on-dark);
  padding: var(--sec-y) 0;
  background-image: linear-gradient(to right, rgba(255, 255, 255, 0.045) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.045) 1px, transparent 1px);
  background-size: 28px 28px;
}

.band-inner {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
  gap: clamp(28px, 4vw, 60px);
  align-items: center;
}

.band-media img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border: 1px solid var(--line-dark);
}

.band-copy h2 {
  font-size: var(--fs-h2);
  letter-spacing: -0.03em;
  margin-bottom: 18px;
  max-width: 20ch;
}

.band-copy > p {
  color: var(--on-dark-2);
  max-width: 52ch;
}

.value-list {
  margin: 28px 0 24px;
  display: grid;
  gap: 18px;
}

.value {
  display: flex;
  gap: 14px;
}

.value-num {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--laser);
  padding-top: 3px;
  flex: none;
}

.value h4 {
  font-size: 15.5px;
  margin-bottom: 4px;
}

.value p {
  font-size: 13.5px;
  color: var(--on-dark-2);
  line-height: 1.55;
}

.value-list--grid {
  grid-template-columns: repeat(2, 1fr);
  gap: 26px 40px;
}

.value-list--grid .value p {
  color: var(--ink-2);
}

.band .link-more {
  color: var(--on-dark);
}

/* ------------------------------- 认证 ------------------------------- */

.cert-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  border-top: 1px solid var(--line);
  border-left: 1px solid var(--line);
  margin-bottom: 26px;
}

.cert-grid li {
  padding: 18px 18px 20px;
  border-right: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  background: var(--card);
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.cert-name {
  font-family: var(--mono);
  font-size: 12.5px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.cert-note {
  font-size: 11.5px;
  color: var(--muted);
  line-height: 1.45;
}

.cert-grid--lg {
  grid-template-columns: repeat(4, 1fr);
}

.cert-grid--lg li {
  padding: 24px 22px 26px;
}

/* ------------------------------- 新闻 ------------------------------- */

.ngrid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.ncard {
  display: flex;
  flex-direction: column;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
  box-shadow: 0 1px 2px rgba(15, 17, 17, 0.04);
  transition: border-color 0.2s var(--ease), transform 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.ncard:hover {
  border-color: var(--line-2);
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(15, 17, 17, 0.12);
}

.ncard-media {
  background: var(--paper-2);
  overflow: hidden;
}

.ncard-media img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.ncard-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 9px;
  flex: 1;
}

.ncard-date {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

.ncard-body h3 {
  font-size: 17px;
  line-height: 1.3;
}

.ncard-body p {
  font-size: 13.5px;
  color: var(--ink-2);
  line-height: 1.55;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.ncard-go {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  margin-top: auto;
  padding-top: 10px;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

.ncard:hover .ncard-go {
  color: var(--laser);
}

.lead {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 0;
  background: var(--card);
  border: 1px solid var(--line);
  margin-bottom: 26px;
  overflow: hidden;
}

.lead-media img {
  width: 100%;
  height: 100%;
  min-height: 260px;
  object-fit: cover;
  aspect-ratio: 16 / 10;
}

.lead-copy {
  padding: clamp(24px, 3vw, 40px);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 10px;
}

.lead-copy time {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

.lead-copy h2 {
  font-size: clamp(22px, 2.2vw, 30px);
  letter-spacing: -0.025em;
}

.lead-copy p {
  color: var(--ink-2);
  font-size: 14.5px;
}

.pill {
  align-self: flex-start;
  background: var(--buy-alt);
  color: var(--buy-ink);
  font-family: var(--mono);
  font-size: 9.5px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 4px;
}

.nrow-list {
  border-top: 1px solid var(--line);
}

.nrow {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 16px 4px;
  border-bottom: 1px solid var(--line);
  transition: padding 0.2s var(--ease), color 0.2s var(--ease);
}

.nrow time {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--muted);
  flex: none;
  width: 92px;
}

.nrow span {
  flex: 1;
  font-size: 15px;
}

.nrow:hover {
  color: var(--laser);
  padding-left: 10px;
}

/* ------------------------------- 深色带 ------------------------------- */

.dark-band {
  background: var(--graphite);
  color: var(--on-dark);
  padding: var(--sec-y) 0;
  position: relative;
  overflow: hidden;
}

.dark-band::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(to right, rgba(255, 255, 255, 0.04) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255, 255, 255, 0.04) 1px, transparent 1px);
  background-size: 28px 28px;
  pointer-events: none;
}

.dark-band--slim {
  padding: calc(var(--sec-y) * 0.6) 0;
}

.dark-inner {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: clamp(28px, 4vw, 56px);
  align-items: center;
  position: relative;
}

.dark-title {
  font-size: var(--fs-h2);
  letter-spacing: -0.03em;
  max-width: 18ch;
}

.dark-title--sm {
  font-size: clamp(22px, 2.4vw, 30px);
}

.dark-text {
  margin-top: 14px;
  color: var(--on-dark-2);
  max-width: 48ch;
}

.buy-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

/* 深色带上也保留亚马逊黄/橙，不反白——购买按钮在任何底色上都要最跳 */
.buy-row .btn-buy {
  width: 100%;
}

/* 三列等分时宽度有限，副标题允许换行，避免被省略号吃掉 */
.buy-row .btn-buy small {
  white-space: normal;
  overflow: visible;
  text-overflow: clip;
  line-height: 1.35;
}

.dark-sub {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
  margin-top: 34px;
  padding-top: 22px;
  border-top: 1px solid var(--line-dark);
  position: relative;
}

/* ------------------------------- 面包屑 ------------------------------- */

.crumbs {
  border-bottom: 1px solid var(--line);
  background: var(--paper-2);
}

.crumbs .wrap {
  display: flex;
  align-items: center;
  gap: 8px;
  height: 42px;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  overflow: hidden;
  white-space: nowrap;
}

.crumbs a:hover {
  color: #c7511f;
  text-decoration: underline;
}

.crumb-now {
  color: var(--ink-2);
  overflow: hidden;
  text-overflow: ellipsis;
}

/* ------------------------------ 产品详情 ------------------------------ */

.pdp {
  padding: clamp(28px, 3.4vw, 52px) 0 clamp(32px, 4vw, 60px);
  border-bottom: 1px solid var(--line);
}

.pdp-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.06fr) minmax(0, 0.94fr);
  gap: clamp(26px, 3.6vw, 56px);
  align-items: start;
}

.pdp-media {
  position: sticky;
  top: 88px;
}

.pdp-main {
  position: relative;
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 8px;
  overflow: hidden;
}

.pdp-main img {
  width: 100%;
  aspect-ratio: 1 / 1;
  object-fit: cover;
}

.pdp-video {
  width: 100%;
  aspect-ratio: 1 / 1;
  background: #000;
  object-fit: contain;
}

/* hidden 属性必须压得住上面的 display/尺寸规则，否则未点击时是一个黑框 */
.pdp-media [hidden] {
  display: none !important;
}

.pdp-thumbs {
  display: flex;
  gap: 8px;
  margin-top: 10px;
  flex-wrap: wrap;
}

.pdp-thumb {
  position: relative;
  width: 68px;
  height: 68px;
  border: 1px solid var(--line);
  padding: 0;
  overflow: hidden;
  background: var(--card);
  transition: border-color 0.18s var(--ease);
}

.pdp-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.pdp-thumb.is-on {
  border-color: var(--graphite);
  box-shadow: inset 0 0 0 1px var(--graphite);
}

.pdp-thumb--video {
  background: var(--graphite);
  display: flex;
  align-items: center;
  justify-content: center;
}

.thumb-play {
  color: #fff;
  display: flex;
}

.pdp-badge {
  display: inline-block;
  background: var(--buy-alt);
  color: var(--buy-ink);
  font-family: var(--mono);
  font-size: 9.5px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 4px 8px;
  border-radius: 4px;
  margin-bottom: 14px;
}

.pdp-title {
  font-size: clamp(26px, 2.8vw, 38px);
  letter-spacing: -0.03em;
}

.pdp-rate {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 14px;
}

.pdp-short {
  margin-top: 16px;
  color: var(--ink-2);
  font-size: 15.5px;
  max-width: 52ch;
}

.pdp-price {
  display: flex;
  align-items: baseline;
  flex-wrap: wrap;
  gap: 14px;
  margin: 22px 0 20px;
  padding: 16px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.pdp-price-note {
  font-size: 12px;
  color: var(--muted);
}

.pdp-bullets {
  display: grid;
  gap: 9px;
}

.pdp-bullets li {
  display: flex;
  gap: 9px;
  font-size: 14.5px;
  line-height: 1.5;
}

.tick-ico {
  color: var(--laser);
  flex: none;
  margin-top: 3px;
}

.tick-ico .ic {
  width: 14px;
  height: 14px;
}

.buy-box {
  margin-top: 26px;
  padding: 18px;
  background: var(--buy-soft);
  border: 1px solid #f0c14b;
  border-radius: 10px;
  display: grid;
  gap: 8px;
}

.buy-label {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #5c4200;
  font-weight: 700;
  margin-bottom: 4px;
}

.buy-fine {
  font-size: 11.5px;
  color: rgba(15, 17, 17, 0.62);
  line-height: 1.5;
  margin-top: 6px;
}

.pdp-quick {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  margin-top: 18px;
  background: var(--line);
  border: 1px solid var(--line);
}

.pdp-quick div {
  background: var(--card);
  padding: 12px 14px;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.pdp-quick span {
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

.pdp-quick strong {
  font-size: 13.5px;
  font-weight: 600;
}

.pdp-block {
  padding: var(--sec-y) 0;
  border-bottom: 1px solid var(--line);
}

.pdp-block-grid {
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: clamp(26px, 4vw, 56px);
  align-items: start;
}

.spec-list {
  border-top: 1px solid var(--line);
}

.spec-row {
  display: flex;
  align-items: baseline;
  gap: 12px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}

.spec-row dt {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  flex: none;
  width: 42%;
}

.spec-row dd {
  margin: 0;
  font-size: 14px;
  line-height: 1.5;
}

.pdp-side {
  display: grid;
  gap: 16px;
}

.rate-card,
.inc-card {
  background: var(--card);
  border: 1px solid var(--line);
  padding: 22px;
}

.rate-card h3,
.inc-card h3 {
  font-size: 13px;
  font-family: var(--mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 16px;
  font-weight: 500;
}

.rate-head {
  display: flex;
  align-items: baseline;
  gap: 8px;
}

.rate-big {
  font-family: var(--mono);
  font-size: 42px;
  font-weight: 600;
  line-height: 1;
  letter-spacing: -0.03em;
}

.rate-out {
  font-size: 12px;
  color: var(--muted);
}

.rate-stars {
  margin-top: 8px;
}

.rate-count {
  font-size: 11.5px;
  color: var(--muted);
  margin-top: 4px;
}

.bars {
  margin-top: 16px;
  display: grid;
  gap: 6px;
}

.bar-row {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 10px;
  color: var(--muted);
}

.bar-lv {
  width: 44px;
  flex: none;
}

.bar {
  flex: 1;
  height: 7px;
  background: var(--paper-2);
  display: block;
  overflow: hidden;
}

.bar i {
  display: block;
  height: 100%;
  background: var(--star);
}

.bar-pct {
  width: 34px;
  text-align: right;
  flex: none;
}

.inc-card ul {
  display: grid;
  gap: 8px;
}

.inc-card li {
  font-size: 13.5px;
  padding-left: 16px;
  position: relative;
  color: var(--ink-2);
}

.inc-card li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 6px;
  height: 1px;
  background: var(--laser);
}

/* A+ 模块 */

.aplus {
  padding: var(--sec-y) 0;
  background: var(--paper-2);
  border-bottom: 1px solid var(--line);
}

.aplus > .wrap > .block-title {
  margin-bottom: 30px;
}

.ap-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(24px, 3.4vw, 52px);
  align-items: center;
  padding: 30px 0;
  border-top: 1px solid var(--line);
}

.ap-row:first-of-type {
  border-top: 0;
}

.ap-row--flip .ap-copy {
  order: 2;
}

.ap-row--flip .ap-media {
  order: 1;
}

.ap-row--text {
  grid-template-columns: 1fr;
  max-width: 74ch;
}

.ap-media img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border: 1px solid var(--line);
}

.ap-num {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  color: var(--laser);
}

.ap-copy h3 {
  font-size: clamp(20px, 2vw, 27px);
  letter-spacing: -0.025em;
  margin: 8px 0 14px;
  max-width: 24ch;
}

.ap-copy p {
  color: var(--ink-2);
  font-size: 14.5px;
  margin-bottom: 12px;
  max-width: 52ch;
}

.pdp-story {
  padding: var(--sec-y) 0;
}

/* ------------------------------- 正文排版 ------------------------------- */

.prose > p,
.prose-p {
  color: var(--ink-2);
  margin-bottom: 16px;
  line-height: 1.68;
}

.prose--article > p {
  font-size: 16.5px;
  color: var(--ink-2);
  margin-bottom: 20px;
  line-height: 1.72;
}

.prose--article h2 {
  font-size: clamp(20px, 2vw, 26px);
  margin: 34px 0 14px;
  letter-spacing: -0.02em;
}

.prose-list {
  margin: 0 0 18px;
  display: grid;
  gap: 8px;
}

.prose-list li {
  position: relative;
  padding-left: 18px;
  color: var(--ink-2);
  line-height: 1.6;
}

.prose-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 8px;
  height: 1px;
  background: var(--laser);
}

.prose a,
.prose--article a {
  border-bottom: 1px solid var(--laser);
  color: var(--laser);
}

.prose a:hover,
.prose--article a:hover {
  border-bottom-color: #c7511f;
  color: #c7511f;
}

/* ------------------------------- 文章 ------------------------------- */

.article {
  padding: clamp(34px, 4vw, 60px) 0;
}

.article-title {
  font-size: clamp(30px, 3.6vw, 48px);
  letter-spacing: -0.035em;
  margin-top: 10px;
}

.article-excerpt {
  margin-top: 16px;
  font-size: 17px;
  color: var(--ink-2);
  max-width: 60ch;
}

.article-cover {
  margin: 32px 0;
  border: 1px solid var(--line);
}

.article-cover img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

/* ------------------------------- 社区 ------------------------------- */

.community-grid {
  display: grid;
  grid-template-columns: 1.18fr 0.82fr;
  gap: clamp(26px, 3.6vw, 52px);
  align-items: start;
}

.tlist {
  border-top: 1px solid var(--line);
}

.trow {
  display: flex;
  gap: 20px;
  padding: 18px 4px;
  border-bottom: 1px solid var(--line);
  transition: background 0.18s var(--ease), padding 0.18s var(--ease);
}

.trow:hover {
  background: rgba(255, 255, 255, 0.6);
  padding-left: 10px;
}

.trow-main h3 {
  font-size: 16.5px;
  line-height: 1.35;
}

.trow-main p {
  margin-top: 5px;
  font-size: 13.5px;
  color: var(--muted);
  line-height: 1.5;
}

.pin {
  display: inline-block;
  font-family: var(--mono);
  font-size: 9px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  background: var(--laser);
  color: #fff;
  padding: 2px 6px;
  margin-right: 8px;
  vertical-align: 2px;
}

.trow-meta {
  margin-left: auto;
  flex: none;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 3px;
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--muted);
}

.trow-author {
  color: var(--ink-2);
}

.post-form {
  background: var(--card);
  border: 1px solid var(--line);
  padding: 24px;
  display: grid;
  gap: 14px;
}

.field-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.field {
  display: grid;
  gap: 6px;
}

.field > span {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

.field > span em {
  font-style: normal;
  text-transform: none;
  letter-spacing: 0;
  color: var(--line-2);
}

.field input,
.field select,
.field textarea {
  width: 100%;
  border: 1px solid var(--line-2);
  background: var(--card);
  padding: 10px 12px;
  font: inherit;
  font-size: 14px;
  color: var(--ink);
  border-radius: 1px;
  transition: border-color 0.16s var(--ease), box-shadow 0.16s var(--ease);
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--graphite);
  box-shadow: 0 0 0 2px rgba(8, 10, 15, 0.09);
}

.field textarea {
  resize: vertical;
  min-height: 92px;
}

/* 蜜罐字段：视觉隐藏但仍可被机器人填写；不用 -9999px 偏移，避免制造横向滚动 */
.hp {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  border: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
}

.form-foot {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 4px;
}

.form-note {
  font-size: 11.5px;
  color: var(--muted);
  max-width: 40ch;
}

.form-msg {
  font-size: 13px;
  min-height: 18px;
}

.form-msg.is-ok {
  color: var(--ok);
}

.form-msg.is-err {
  color: var(--danger);
}

.topic {
  padding: clamp(30px, 4vw, 54px) 0;
}

.topic-head h1 {
  font-size: clamp(26px, 3vw, 38px);
  letter-spacing: -0.03em;
}

.topic-meta {
  margin: 12px 0 24px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  color: var(--muted);
}

.reply-list {
  margin: 30px 0;
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
}

.reply {
  padding: 18px 0;
  border-bottom: 1px solid var(--line);
}

.reply-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
}

.reply-head strong {
  font-size: 13.5px;
}

.reply-head time {
  font-family: var(--mono);
  font-size: 10.5px;
  color: var(--muted);
}

/* ------------------------------- 关于 ------------------------------- */

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: clamp(26px, 4vw, 56px);
  align-items: start;
}

.split-media img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  border: 1px solid var(--line);
}

.split-media--soft {
  background: var(--card);
  border: 1px solid var(--line);
  padding: 26px;
}

.timeline {
  border-top: 1px solid var(--line);
}

.timeline li {
  display: flex;
  gap: 18px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
}

.tl-year {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 600;
  color: var(--laser);
  flex: none;
  width: 52px;
  padding-top: 2px;
}

.timeline h4 {
  font-size: 15px;
  margin-bottom: 3px;
}

.timeline p {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.55;
}

/* ------------------------------- 购买页 ------------------------------- */

.buy-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.buy-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 24px;
  display: grid;
  gap: 10px;
  align-content: start;
  box-shadow: 0 1px 2px rgba(15, 17, 17, 0.04);
}

.buy-card h3 {
  font-size: 19px;
}

.buy-card p {
  font-size: 13.5px;
  color: var(--muted);
  min-height: 40px;
}

.buy-card .btn {
  justify-self: start;
}

.buy-soon {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}

.contact-block h3 {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 6px;
}

.contact-block h3 + .mail-link {
  margin-bottom: 18px;
}

.mail-link {
  display: inline-block;
  font-size: 15px;
  border-bottom: 1px solid var(--laser);
  margin-bottom: 6px;
  word-break: break-word;
}

.mail-link:hover {
  color: var(--laser);
}

.check-list {
  display: grid;
  gap: 10px;
  margin: 18px 0 24px;
}

.check-list li {
  display: flex;
  gap: 9px;
  font-size: 14px;
  color: var(--ink-2);
  line-height: 1.5;
}

.check-list .ic {
  color: var(--laser);
  margin-top: 3px;
}

/* ------------------------------- 支持/联系 ------------------------------- */

.support-grid,
.contact-grid {
  display: grid;
  grid-template-columns: 1.12fr 0.88fr;
  gap: clamp(24px, 3.4vw, 48px);
  align-items: start;
}

.support-side,
.contact-side {
  display: grid;
  gap: 14px;
}

.side-card {
  background: var(--card);
  border: 1px solid var(--line);
  padding: 22px;
}

.side-card h3 {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 12px;
}

.side-card p {
  font-size: 13.5px;
  color: var(--ink-2);
  line-height: 1.6;
  margin-bottom: 8px;
}

.side-card .check-list {
  margin: 0 0 14px;
}

.side-card--dark {
  background: var(--graphite);
  color: var(--on-dark);
  border-color: var(--graphite);
}

.side-card--dark h3 {
  color: var(--on-dark-2);
}

.side-card--dark .foot-mono {
  color: var(--on-dark-2);
}

.side-card--dark .mail-link {
  color: var(--on-dark);
}

/* ------------------------------- FAQ ------------------------------- */

.faq-list {
  border-top: 1px solid var(--line);
}

.faq-item {
  border-bottom: 1px solid var(--line);
}

.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 18px 0;
  cursor: pointer;
  font-size: 16px;
  font-weight: 550;
  letter-spacing: -0.015em;
  list-style: none;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-ic {
  color: var(--muted);
  transition: transform 0.2s var(--ease), color 0.2s var(--ease);
}

.faq-item[open] .faq-ic {
  transform: rotate(45deg);
  color: var(--laser);
}

.faq-a {
  padding: 0 0 20px;
  max-width: 66ch;
}

.faq-a p {
  color: var(--ink-2);
  font-size: 14.5px;
  line-height: 1.66;
}

.ask-card {
  margin-top: 28px;
  padding: 22px;
  background: var(--card);
  border: 1px solid var(--line);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  flex-wrap: wrap;
}

.ask-card p {
  font-weight: 550;
}

.ask-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

/* ------------------------------- 页脚 ------------------------------- */

.site-foot {
  background: var(--graphite);
  color: var(--on-dark);
  padding: 56px 0 24px;
  margin-top: 0;
}

.foot-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 32px;
  padding-bottom: 36px;
  border-bottom: 1px solid var(--line-dark);
}

.brand--foot .brand-mark i {
  background: var(--on-dark);
}

.brand--foot .brand-mark i:nth-child(2) {
  background: var(--laser);
}

.brand--foot .brand-word {
  color: var(--on-dark);
}

.foot-note {
  margin-top: 14px;
  color: var(--on-dark-2);
  font-size: 13px;
  max-width: 34ch;
  line-height: 1.6;
}

.foot-mono {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.04em;
  color: var(--muted);
}

/* 页脚订阅：邮件列表是复购和后期独立站最核心的自有资产 */
.foot-sub {
  position: relative;
  margin-top: 22px;
  padding-top: 18px;
  border-top: 1px solid var(--line-dark, rgba(255, 255, 255, 0.12));
  max-width: 380px;
}

.foot-sub-label {
  display: block;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--on-dark-2);
  margin-bottom: 10px;
}

.foot-sub-row {
  display: flex;
  gap: 8px;
}

.foot-sub-row input {
  flex: 1;
  min-width: 0;
  height: 40px;
  padding: 0 12px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.04);
  color: var(--on-dark);
  font-size: 13.5px;
  border-radius: 4px;
}

.foot-sub-row input::placeholder {
  color: rgba(255, 255, 255, 0.38);
}

.foot-sub-row input:focus {
  outline: none;
  border-color: var(--laser);
  background: rgba(255, 255, 255, 0.07);
}

.foot-sub-row button {
  height: 40px;
  padding: 0 18px;
  border: 1px solid var(--buy-line);
  background: var(--buy);
  color: var(--buy-ink);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.02em;
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.15s ease, opacity 0.15s ease;
}

.foot-sub-row button:hover {
  background: var(--buy-hover);
}

.foot-sub-row button:disabled {
  opacity: 0.6;
  cursor: default;
}

.foot-sub-msg {
  margin-top: 8px;
  font-size: 12px;
  color: var(--on-dark-2);
  min-height: 1.2em;
}

.foot-sub-msg.is-ok {
  color: #6fcf97;
}

.foot-sub .hp {
  position: absolute;
  left: 0;
  top: 0;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.foot-col {
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.foot-col h3 {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 5px;
}

.foot-col a {
  font-size: 13px;
  color: var(--on-dark-2);
  width: max-content;
}

.foot-col a:hover {
  color: var(--on-dark);
}

.foot-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding-top: 20px;
  font-size: 11.5px;
  color: var(--muted);
  flex-wrap: wrap;
}

/* ------------------------------- 同意条 ------------------------------- */

.consent {
  position: fixed;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 80;
  background: var(--graphite);
  color: var(--on-dark);
  border-top: 1px solid var(--line-dark);
  box-shadow: 0 -10px 30px -20px rgba(0, 0, 0, 0.6);
}

.consent[hidden] {
  display: none;
}

.consent-inner {
  max-width: var(--wrap);
  margin: 0 auto;
  padding: 16px var(--pad);
  display: flex;
  align-items: center;
  gap: 22px;
  flex-wrap: wrap;
}

.consent-inner p {
  flex: 1;
  min-width: 260px;
  font-size: 12.5px;
  line-height: 1.55;
  color: var(--on-dark-2);
}

.consent-inner strong {
  color: var(--on-dark);
}

.consent-inner a {
  border-bottom: 1px solid var(--on-dark-2);
}

.consent-actions {
  display: flex;
  gap: 8px;
}

.consent .btn-ghost {
  border-color: var(--line-dark);
  color: var(--on-dark-2);
}

.consent .btn-ghost:hover {
  border-color: var(--on-dark-2);
  background: rgba(255, 255, 255, 0.06);
  color: var(--on-dark);
}

.consent .btn-primary {
  background: var(--on-dark);
  color: var(--graphite);
}

.consent .btn-primary:hover {
  background: var(--laser);
  color: #fff;
}

/* ------------------------------- 动效 ------------------------------- */

.reveal {
  opacity: 0;
  transform: translateY(14px);
}

.reveal.is-in {
  opacity: 1;
  transform: none;
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}

/* ------------------------------- 响应式 ------------------------------- */

@media (max-width: 1080px) {
  .nav {
    gap: 18px;
  }

  .head-cta {
    display: none;
  }

  .hero-grid,
  .band-inner,
  .dark-inner,
  .pdp-grid,
  .pdp-block-grid,
  .split,
  .community-grid,
  .support-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .pdp-media {
    position: static;
  }

  .pgrid,
  .pgrid--full,
  .ngrid,
  .cat-grid,
  .buy-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .foot-grid {
    grid-template-columns: 1fr 1fr;
    gap: 28px;
  }

  .cert-grid,
  .cert-grid--lg {
    grid-template-columns: repeat(3, 1fr);
  }

  .kpi-strip {
    grid-template-columns: repeat(2, 1fr);
  }

  .kpi:nth-child(2) {
    border-right: 0;
  }

  .kpi:nth-child(1),
  .kpi:nth-child(2) {
    border-bottom: 1px solid var(--line);
  }

  .ap-row {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .ap-row--flip .ap-copy {
    order: 1;
  }

  .ap-row--flip .ap-media {
    order: 2;
  }

  .lead {
    grid-template-columns: 1fr;
  }

  .value-list--grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 860px) {
  .head-rule-inner {
    gap: 16px;
  }

  .hide-sm {
    display: none;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--graphite-2);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.28);
    padding: 8px var(--pad) 18px;
    display: none;
  }

  .nav.is-open {
    display: flex;
  }

  .nav-link {
    padding: 13px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    font-size: 12px;
    color: rgba(255, 255, 255, 0.92);
  }

  .nav-link::after {
    display: none;
  }

  .site-head {
    position: relative;
  }

  .hero-chip {
    left: 12px;
    bottom: 12px;
  }

  .field-row {
    grid-template-columns: 1fr;
  }

  .form-foot {
    flex-direction: column;
    align-items: flex-start;
  }

  .cert-grid,
  .cert-grid--lg {
    grid-template-columns: repeat(2, 1fr);
  }

  .spec-row {
    flex-direction: column;
    gap: 4px;
  }

  .spec-row dt {
    width: auto;
  }

  .pdp-quick {
    grid-template-columns: 1fr;
  }

  .sec-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }

  .dark-sub {
    gap: 18px;
  }
}

@media (max-width: 620px) {
  :root {
    --pad: 18px;
  }

  .pgrid,
  .pgrid--full,
  .ngrid,
  .cat-grid,
  .buy-grid,
  .foot-grid,
  .buy-row {
    grid-template-columns: 1fr;
  }

  .kpi-strip {
    grid-template-columns: 1fr;
  }

  .kpi {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .pdp-thumb {
    width: 56px;
    height: 56px;
  }

  .trow {
    flex-direction: column;
    gap: 10px;
  }

  .trow-meta {
    margin-left: 0;
    flex-direction: row;
    align-items: center;
    gap: 12px;
  }

  .ask-card {
    flex-direction: column;
    align-items: flex-start;
  }

  .consent-inner {
    padding: 14px var(--pad);
  }
}

/* ============================ 访客登记弹窗 ============================ */

body.is-locked {
  overflow: hidden;
}

.vmodal {
  position: fixed;
  inset: 0;
  z-index: 95;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px var(--pad);
}

.vmodal[hidden] {
  display: none !important;
}

.vmodal-mask {
  position: absolute;
  inset: 0;
  background: rgba(8, 10, 15, 0.52);
  backdrop-filter: blur(3px);
  opacity: 0;
  transition: opacity 0.26s var(--ease);
}

.vmodal.is-on .vmodal-mask {
  opacity: 1;
}

.vmodal-panel {
  position: relative;
  width: 100%;
  max-width: 428px;
  max-height: calc(100vh - 48px);
  overflow-y: auto;
  background: var(--card);
  border: 1px solid var(--line);
  border-top: 3px solid var(--laser);
  border-radius: 4px;
  padding: 30px 30px 24px;
  box-shadow: 0 40px 90px -40px rgba(8, 10, 15, 0.55);
  opacity: 0;
  transform: translateY(16px) scale(0.985);
  transition: opacity 0.26s var(--ease), transform 0.26s var(--ease);
}

.vmodal.is-on .vmodal-panel {
  opacity: 1;
  transform: none;
}

.vmodal-x {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 32px;
  height: 32px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 0;
  background: transparent;
  color: var(--muted);
  border-radius: 2px;
  cursor: pointer;
}

.vmodal-x:hover {
  background: var(--paper-2);
  color: var(--ink);
}

.vmodal-eyebrow {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--laser);
  margin: 0 0 10px;
}

.vmodal-title {
  font-size: 24px;
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin: 0 0 8px;
}

.vmodal-lede {
  font-size: 13.5px;
  line-height: 1.55;
  color: var(--ink-2);
  margin: 0 0 20px;
}

.vtabs {
  display: flex;
  gap: 0;
  border-bottom: 1px solid var(--line);
  margin-bottom: 18px;
}

.vtabs-btn {
  flex: 1;
  padding: 9px 4px 11px;
  border: 0;
  background: none;
  font-size: 13px;
  font-weight: 550;
  color: var(--muted);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
}

.vtabs-btn:hover {
  color: var(--ink);
}

.vtabs-btn.is-on {
  color: var(--ink);
  border-bottom-color: var(--laser);
}

.vfield {
  display: block;
  margin-bottom: 12px;
}

.vfield[hidden] {
  display: none !important;
}

.vfield > span {
  display: block;
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 6px;
}

.vfield > span em {
  font-style: normal;
  text-transform: none;
  letter-spacing: 0;
  color: var(--line-2);
  margin-left: 4px;
}

.vfield input,
.vfield select {
  width: 100%;
  padding: 11px 12px;
  font-size: 14px;
  color: var(--ink);
  background: var(--card);
  border: 1px solid var(--line-2);
  border-radius: 2px;
  outline: none;
  transition: border-color 0.16s var(--ease), box-shadow 0.16s var(--ease);
}

.vfield input:focus,
.vfield select:focus {
  border-color: var(--laser);
  box-shadow: 0 0 0 3px var(--laser-soft);
}

.vmsg {
  min-height: 16px;
  font-size: 12.5px;
  line-height: 1.4;
  color: var(--ink-2);
  margin: 4px 0 12px;
}

.vmsg.is-ok {
  color: var(--ok);
}

.vmsg.is-err {
  color: var(--danger);
}

.vsubmit {
  width: 100%;
  background: var(--laser);
  color: #fff;
  border-color: var(--laser);
}

.vsubmit:hover {
  background: var(--laser-2);
  border-color: var(--laser-2);
}

.vsubmit:disabled {
  opacity: 0.7;
  cursor: default;
  transform: none;
}

.vfoot {
  margin: 14px 0 0;
  font-size: 11.5px;
  line-height: 1.5;
  color: var(--muted);
}

.vfoot a {
  color: var(--laser);
  text-decoration: underline;
}

.vskip {
  display: block;
  width: 100%;
  margin-top: 14px;
  padding: 8px 0;
  border: 0;
  background: none;
  font-size: 12px;
  color: var(--muted);
  cursor: pointer;
  border-top: 1px dashed var(--line);
}

.vskip:hover {
  color: var(--ink);
}

@media (max-width: 520px) {
  .vmodal {
    padding: 12px;
    align-items: flex-end;
  }

  .vmodal-panel {
    padding: 24px 20px 18px;
    max-height: calc(100vh - 24px);
  }

  .vmodal-title {
    font-size: 21px;
  }
}

/* ==================== 移动端可用性增强 ====================
   1) iOS Safari 对 <16px 的输入框会在聚焦时自动放大整个页面，
      放大后横向布局就废了 —— 小屏一律 16px。
   2) 可点击控件最小 44×44（Apple HIG / Google 触控建议），
      原来 38px 的汉堡按钮、38px 的筛选标签、41px 的小按钮都偏小。
   ========================================================== */
@media (max-width: 620px) {
  .field input,
  .field select,
  .field textarea,
  .vfield input,
  .vfield select,
  .foot-sub-row input,
  .post-form input,
  .post-form select,
  .post-form textarea,
  input[type="text"],
  input[type="email"],
  input[type="tel"],
  input[type="search"],
  input[type="password"],
  textarea,
  select {
    font-size: 16px;
    min-height: 44px;
  }

  .foot-sub-row input,
  .foot-sub-row button {
    height: 44px;
  }

  .btn,
  .btn-sm,
  .chip,
  .nav-toggle,
  .vmodal-x,
  .vskip,
  .vtabs-btn,
  .faq-item summary,
  .foot-account,
  .skip-link {
    min-height: 44px;
  }

  .nav-toggle {
    width: 44px;
    height: 44px;
  }

  .brand,
  .head-rule-link,
  .link-more,
  .foot-col a,
  .crumbs a,
  .mail-link {
    display: inline-flex;
    align-items: center;
    min-height: 44px;
  }

  .crumbs .wrap {
    height: 48px;
  }

  /* 访客弹窗在手机上不占满屏幕：底部卡片，上半屏内容始终可见 */
  .vmodal {
    align-items: flex-end;
    padding: 10px;
  }

  .vmodal-mask {
    background: rgba(8, 10, 15, 0.32);
    backdrop-filter: none;
  }

  .vmodal-panel {
    max-height: 64vh;
    padding: 22px 18px 16px;
  }
}

/* 移动端账户入口：默认隐藏，只有确认「未登记且弹窗可用」时由 site.js 显示 */
.foot-account {
  display: none;
  margin-top: 16px;
  padding: 0 16px;
  border: 1px solid rgba(255, 255, 255, 0.28);
  background: transparent;
  color: var(--on-dark);
  font-size: 13px;
  border-radius: 2px;
  cursor: pointer;
}

@media (max-width: 620px) {
  .foot-account {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }
  /* display 会盖掉 [hidden]，必须显式声明（项目里踩过这个坑） */
  .foot-account[hidden] {
    display: none !important;
  }
}