/* ================= 首页 page-home ================= */

.page-home {
  display: block;
  background: var(--ink);
  color: var(--paper);
  overflow-x: hidden;
}

.page-home [data-section] {
  scroll-margin-top: calc(var(--nav-h) + 72px);
}

/* ---------- 章节索引条 ---------- */

.page-home .home-index {
  border-bottom: 1px solid var(--line);
  background: var(--panel);
}

.page-home .home-index__inner {
  display: flex;
  align-items: stretch;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 var(--gutter);
  overflow-x: auto;
  scroll-snap-type: x proximity;
  -webkit-overflow-scrolling: touch;
}

.page-home .home-index__inner::-webkit-scrollbar {
  height: 4px;
}

.page-home .home-index__inner::-webkit-scrollbar-thumb {
  background: var(--line-2);
}

.page-home .home-index__here {
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  padding: 14px 18px 14px 0;
  border-right: 1px solid var(--line);
  color: var(--red-lit);
  white-space: nowrap;
}

.page-home .home-index__link {
  flex: 0 0 auto;
  scroll-snap-align: start;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 14px 18px;
  border-right: 1px solid var(--line);
  font-family: var(--font-ui);
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--index);
  text-decoration: none;
  white-space: nowrap;
  transition: color var(--dur) var(--ease), background var(--dur) var(--ease);
}

.page-home .home-index__link b {
  font-family: var(--font-num);
  font-size: 13px;
  font-weight: 600;
  color: var(--jade);
}

.page-home .home-index__link:hover,
.page-home .home-index__link:focus-visible {
  color: var(--paper);
  background: rgba(192, 70, 44, .18);
}

.page-home .home-index__link:focus-visible {
  outline: 2px solid var(--red-lit);
  outline-offset: -2px;
}

.page-home .home-index__link[aria-current="true"] {
  color: var(--paper);
  background: rgba(192, 70, 44, .22);
}

/* ---------- 首屏 ---------- */

.page-home .home-hero {
  padding: clamp(30px, 5vw, 68px) 0 clamp(42px, 6vw, 92px);
}

.page-home .home-hero__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3.4vw, 46px);
  align-items: start;
}

.page-home .home-hero__narrative {
  position: relative;
  background: var(--panel);
  border: 1px solid var(--line);
  padding: clamp(22px, 3vw, 42px);
  box-shadow: 8px 8px 0 0 rgba(12, 13, 14, .9), 8px 8px 0 1px var(--line), var(--shadow-panel);
}

.page-home .home-hero__eyebrow {
  margin: 0;
  color: var(--red-lit);
}

.page-home .home-hero__title {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(29px, 4.4vw, 56px);
  line-height: 1.2;
  letter-spacing: -.015em;
  color: var(--paper);
  margin: 14px 0 20px;
  max-width: 20ch;
}

.page-home .home-hero__lede {
  font-family: var(--font-read);
  font-size: clamp(15px, 1.05vw, 17px);
  line-height: 1.9;
  color: rgba(242, 237, 228, .8);
  margin: 0 0 26px;
  max-width: 48ch;
}

.page-home .home-hero__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 30px;
}

.page-home .home-hero__media {
  margin: 0;
  border: 1px solid var(--line);
  overflow: hidden;
  background: var(--ink);
}

.page-home .home-hero__media img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 1600 / 600;
  object-fit: cover;
}

/* ---------- 规模刻度面板 ---------- */

.page-home .home-gauge {
  --gauge-a: #C0462C;
  --gauge-b: #2C7A73;
  --gauge-c: #A0761A;
  background: var(--paper-2);
  color: var(--rule);
  border: 1px solid rgba(12, 13, 14, .22);
  padding: clamp(20px, 2.6vw, 34px);
  box-shadow: 8px 8px 0 0 rgba(12, 13, 14, .9), 8px 8px 0 1px var(--line), var(--shadow-panel);
}

.page-home .home-gauge__cap {
  margin: 0;
  color: #6E675E;
}

.page-home .home-gauge__list {
  list-style: none;
  margin: 0;
  padding: 0;
}

.page-home .home-gauge__item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: baseline;
  gap: 0 14px;
  padding: 16px 0 14px;
  border-top: 1px solid rgba(12, 13, 14, .16);
}

.page-home .home-gauge__item:first-child {
  border-top: 0;
  padding-top: 6px;
}

.page-home .home-gauge__num {
  font-family: var(--font-num);
  font-weight: 600;
  font-size: clamp(46px, 6.4vw, 72px);
  line-height: .92;
  letter-spacing: -.02em;
}

.page-home .home-gauge__item--a .home-gauge__num { color: var(--gauge-a); }
.page-home .home-gauge__item--b .home-gauge__num { color: var(--gauge-b); }
.page-home .home-gauge__item--c .home-gauge__num { color: var(--gauge-c); }

.page-home .home-gauge__label {
  font-family: var(--font-ui);
  font-size: 13px;
  line-height: 1.65;
  color: #6E675E;
}

.page-home .home-gauge__track {
  grid-column: 1 / -1;
  display: block;
  height: 9px;
  margin-top: 10px;
  background-image: repeating-linear-gradient(90deg, rgba(12, 13, 14, .34) 0 1px, transparent 1px 8px);
}

/* ---------- 通用章节 ---------- */

.page-home .home-sec {
  padding: clamp(50px, 8vw, 112px) 0;
}

.page-home .home-sec__head {
  max-width: 62ch;
  margin-bottom: clamp(24px, 3.5vw, 46px);
}

.page-home .home-idx-num {
  font-family: var(--font-num);
  font-weight: 600;
  font-size: clamp(34px, 4vw, 56px);
  line-height: 1;
  letter-spacing: -.01em;
  margin: 0 0 10px;
}

.page-home .home-idx-num--red { color: var(--red); }
.page-home .home-idx-num--jade { color: var(--jade); }
.page-home .home-idx-num--saffron { color: var(--saffron); }

.page-home .home-h2 {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(23px, 2.5vw, 38px);
  line-height: 1.34;
  letter-spacing: -.01em;
  color: var(--paper);
  margin: 0 0 14px;
}

.page-home .home-p {
  font-family: var(--font-read);
  font-size: 16px;
  line-height: 1.9;
  color: rgba(242, 237, 228, .76);
  margin: 0 0 16px;
}

/* ---------- 非对称分栏（左索引 / 右内容） ---------- */

.page-home .home-split {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3vw, 46px);
}

.page-home .home-split__index {
  align-self: start;
}

/* ---------- 两条主线入口 ---------- */

.page-home .home-lines {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(20px, 2.6vw, 32px);
}

.page-home .home-line {
  display: flex;
  flex-direction: column;
  background: var(--panel);
  border: 1px solid var(--line);
  padding: clamp(22px, 3vw, 36px);
  box-shadow: 7px 7px 0 0 rgba(12, 13, 14, .9), 7px 7px 0 1px var(--line), var(--shadow-panel);
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}

.page-home .home-line--alt {
  background: #232629;
}

.page-home .home-line:hover,
.page-home .home-line:focus-within {
  transform: translateY(-4px);
  box-shadow: 10px 10px 0 0 rgba(12, 13, 14, .95), 10px 10px 0 1px var(--line-2), var(--shadow-lift);
}

.page-home .home-line__tag {
  align-self: flex-start;
  padding: 4px 10px;
  border: 1px solid var(--line-2);
  color: var(--index);
  margin-bottom: 16px;
}

.page-home .home-line__h {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(21px, 2vw, 28px);
  line-height: 1.36;
  color: var(--paper);
  margin: 0 0 12px;
}

.page-home .home-line__p {
  font-family: var(--font-read);
  font-size: 15px;
  line-height: 1.88;
  color: rgba(242, 237, 228, .78);
  margin: 0 0 18px;
}

.page-home .home-line__ul {
  list-style: none;
  margin: 0 0 24px;
  padding: 0;
  display: grid;
  gap: 9px;
}

.page-home .home-line__ul li {
  position: relative;
  padding-left: 18px;
  font-family: var(--font-ui);
  font-size: 14px;
  line-height: 1.7;
  color: rgba(242, 237, 228, .74);
}

.page-home .home-line__ul li::before {
  content: "";
  position: absolute;
  left: 0;
  top: .72em;
  width: 9px;
  height: 1px;
  background: var(--red-lit);
}

.page-home .home-line .btn {
  margin-top: auto;
  align-self: flex-start;
}

/* ---------- 工序序列 ---------- */

.page-home .home-steps__fig {
  margin: 0 0 clamp(20px, 2.6vw, 32px);
  border: 1px solid var(--line);
  overflow: hidden;
  background: var(--ink);
}

.page-home .home-steps__fig img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 1920 / 720;
  object-fit: cover;
}

.page-home .home-steps {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

.page-home .home-steps__stage {
  background: var(--panel);
  border: 1px solid var(--line);
  padding: 16px 18px 18px;
}

.page-home .home-steps__name {
  display: block;
  font-family: var(--font-ui);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--index);
  margin-bottom: 12px;
}

.page-home .home-steps__nums {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.page-home .home-steps__nums span {
  font-family: var(--font-num);
  font-weight: 600;
  font-size: 19px;
  line-height: 1;
  letter-spacing: .02em;
  color: var(--jade);
  border: 1px solid rgba(63, 167, 159, .42);
  padding: 6px 11px;
}

.page-home .home-split__index .btn {
  margin-top: 6px;
}

/* ---------- 分销圈层 ---------- */

.page-home .home-zones {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-home .home-zone {
  background: var(--panel);
  padding: clamp(16px, 2vw, 24px);
}

.page-home .home-zone__num {
  display: block;
  font-family: var(--font-num);
  font-weight: 600;
  font-size: clamp(30px, 3.4vw, 44px);
  line-height: 1;
  color: var(--saffron);
  margin-bottom: 10px;
}

.page-home .home-zone__name {
  display: block;
  font-family: var(--font-ui);
  font-size: 15px;
  font-weight: 600;
  color: var(--paper);
  margin-bottom: 8px;
}

.page-home .home-zone__desc {
  font-family: var(--font-ui);
  font-size: 13px;
  line-height: 1.78;
  color: rgba(242, 237, 228, .7);
  margin: 0;
}

.page-home .home-zones__note {
  margin: clamp(18px, 2.4vw, 26px) 0 0;
  font-size: 14px;
  padding-left: 16px;
  border-left: 2px solid var(--red);
}

.page-home .home-zones__fig {
  margin: clamp(20px, 2.8vw, 32px) 0 0;
  border: 1px solid var(--line);
  overflow: hidden;
}

.page-home .home-zones__fig img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 1200 / 800;
  object-fit: cover;
}

/* ---------- 比价选型 ---------- */

.page-home .home-compare {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(22px, 3vw, 40px);
  align-items: center;
}

.page-home .home-compare__fig {
  margin: 0;
  border: 1px solid var(--line);
  overflow: hidden;
  box-shadow: 8px 8px 0 0 rgba(12, 13, 14, .88), 8px 8px 0 1px var(--line);
}

.page-home .home-compare__fig img {
  display: block;
  width: 100%;
  max-width: 100%;
  height: auto;
  aspect-ratio: 1200 / 800;
  object-fit: cover;
}

.page-home .home-compare__big {
  font-family: var(--font-num);
  font-weight: 500;
  font-size: clamp(22px, 2.4vw, 32px);
  line-height: 1.2;
  color: var(--paper);
  margin: 0 0 16px;
}

.page-home .home-compare__big b {
  font-weight: 600;
  font-size: 1.5em;
  line-height: 1;
  color: var(--red-lit);
  margin: 0 4px;
}

.page-home .home-compare__ul {
  margin-bottom: 26px;
}

/* ---------- 联系通道 ---------- */

.page-home .home-contact {
  display: grid;
  grid-template-columns: 1fr;
  gap: clamp(24px, 3.4vw, 48px);
  align-items: start;
}

.page-home .home-contact__acts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 6px;
}

.page-home .home-contact__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1px;
  background: var(--line);
  border: 1px solid var(--line);
}

.page-home .home-contact__list li {
  background: var(--panel);
  padding: clamp(18px, 2.2vw, 26px);
}

.page-home .home-contact__k {
  display: block;
  font-family: var(--font-ui);
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--index);
  margin-bottom: 9px;
}

.page-home .home-contact__v {
  display: block;
  font-family: var(--font-ui);
  font-size: clamp(15px, 1.4vw, 19px);
  font-weight: 600;
  color: var(--paper);
  margin-bottom: 9px;
  overflow-wrap: anywhere;
}

.page-home .home-contact__desc {
  font-family: var(--font-ui);
  font-size: 13px;
  line-height: 1.78;
  color: rgba(242, 237, 228, .7);
  margin: 0;
}

/* ---------- 响应式 ---------- */

@media (min-width: 680px) {
  .page-home .home-steps {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .page-home .home-zones {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 760px) {
  .page-home .home-lines {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 860px) {
  .page-home .home-compare {
    grid-template-columns: minmax(0, .92fr) minmax(0, 1.08fr);
  }
}

@media (min-width: 880px) {
  .page-home .home-contact {
    grid-template-columns: minmax(0, .82fr) minmax(0, 1.18fr);
  }
}

@media (min-width: 920px) {
  .page-home .home-hero__grid {
    grid-template-columns: minmax(0, 1.12fr) minmax(0, .88fr);
    gap: clamp(30px, 4vw, 56px);
  }
  .page-home .home-split {
    grid-template-columns: minmax(220px, 32%) minmax(0, 1fr);
  }
}

@media (min-width: 1180px) {
  .page-home .home-steps {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (prefers-reduced-motion: reduce) {
  .page-home .home-line,
  .page-home .home-index__link {
    transition: none;
  }
  .page-home .home-line:hover,
  .page-home .home-line:focus-within {
    transform: none;
  }
}
</main>