/* 首页专属样式 · 雪线命令台 */
.page-home {
  --ph-gold: var(--color-gold-dark);
  --ph-gold-light: var(--color-gold-light);
  --ph-snow: var(--color-snow);
  --ph-brown: var(--color-brown);
  --ph-ink: var(--color-ink);
  --ph-blue: var(--color-blue);
  --ph-violet: var(--color-violet);
  --ph-line: var(--color-line);
  --ph-leather: var(--color-leather);
  --ph-bronze: var(--color-bronze);

  background: var(--color-snow);
  color: var(--color-ink);
  overflow-x: hidden;
}

/* ===== 首屏框景 ===== */
.page-home__hero {
  box-sizing: border-box;
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding: 6rem 0 3.5rem;
  background: linear-gradient(165deg, #1F1A15 0%, #3B2D1E 55%, #4A3320 100%);
  color: var(--color-snow);
}

.page-home__hero-bg-wrap {
  position: absolute;
  inset: 0;
  z-index: 0;
  opacity: 0.34;
  overflow: hidden;
}

.page-home__hero-bg {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.92) contrast(1.04);
}

.page-home__hero-symbol {
  position: absolute;
  right: -2.5rem;
  bottom: 0;
  z-index: 1;
  width: min(520px, 72%);
  pointer-events: none;
}

.page-home__vertical-note {
  display: none;
  position: absolute;
  right: 2rem;
  top: 50%;
  transform: translateY(-50%);
  z-index: 3;
  writing-mode: vertical-rl;
  font-size: 0.78rem;
  letter-spacing: 0.18em;
  color: rgba(201, 162, 39, 0.48);
  pointer-events: none;
}

.page-home__hero-inner {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  gap: 2.25rem;
}

.page-home__hero-entry {
  max-width: 680px;
}

.page-home__title {
  font-family: var(--font-heading);
  font-size: var(--font-h1);
  line-height: 1.18;
  margin: 0.6rem 0 1.1rem;
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  gap: 0 0.4em;
}

.page-home__title-main {
  font-weight: 700;
  letter-spacing: 0.02em;
}

.page-home__title-divider {
  color: var(--ph-gold);
  font-weight: 400;
}

.page-home__title-sub {
  font-size: 0.5em;
  font-weight: 400;
  color: var(--ph-gold-light);
  letter-spacing: 0.06em;
}

.page-home__lead {
  font-size: var(--font-body-size);
  line-height: 1.8;
  color: var(--ph-gold-light);
  margin: 0 0 0.5rem;
}

.page-home__desc {
  font-size: var(--font-caption);
  line-height: 1.9;
  color: rgba(247, 242, 231, 0.72);
  margin: 0;
  max-width: 46em;
}

/* 登录面板与三入口 */
.page-home__hero-panel {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.page-home__login-box {
  position: relative;
  background: rgba(247, 242, 231, 0.07);
  border: 1px solid rgba(201, 162, 39, 0.45);
  padding: 1.5rem;
  backdrop-filter: blur(6px);
}

.page-home__login-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.75rem;
}

.page-home__login-title {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--ph-gold-light);
  letter-spacing: 0.02em;
}

.page-home__kbd {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2.5rem;
  height: 2.5rem;
  border: 1px solid var(--ph-gold);
  border-radius: 0;
  font-family: var(--font-body);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--ph-gold-light);
  background: transparent;
  line-height: 1;
}

.page-home__login-note,
.page-home__login-sub {
  font-size: 0.88rem;
  line-height: 1.75;
  color: rgba(247, 242, 231, 0.78);
  margin: 0 0 0.65rem;
}

.page-home__login-sub {
  margin-bottom: 1.1rem;
}

.page-home__quick-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.page-home__quick-card {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
  padding: 1.25rem 1.35rem;
  background: rgba(247, 242, 231, 0.07);
  border: 1px solid rgba(216, 208, 194, 0.22);
  color: var(--color-snow);
  text-decoration: none;
  transition: border-color 0.3s ease, background 0.3s ease, transform 0.3s ease;
}

.page-home__quick-card:hover {
  border-color: var(--ph-gold);
  background: rgba(201, 162, 39, 0.12);
  transform: translateY(-2px);
}

.page-home__quick-card--content {
  border-left: 3px solid var(--ph-gold);
}

.page-home__quick-card--help {
  border-left: 3px solid var(--color-blue);
}

.page-home__quick-card--category {
  border-left: 3px solid var(--color-violet);
}

.page-home__quick-num {
  font-size: 0.78rem;
  font-variant-numeric: tabular-nums;
  color: var(--ph-gold);
}

.page-home__quick-label {
  font-family: var(--font-heading);
  font-size: 1.2rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

.page-home__quick-sub {
  font-size: 0.8rem;
  line-height: 1.6;
  color: rgba(247, 242, 231, 0.6);
}

/* 框景四角 */
.page-home__frame {
  position: absolute;
  width: 3rem;
  height: 3rem;
  border-color: var(--ph-gold);
  z-index: 3;
  pointer-events: none;
}

.page-home__frame--tl {
  top: 1.25rem;
  left: 1.25rem;
  border-top: 3px solid var(--ph-gold);
  border-left: 3px solid var(--ph-gold);
}

.page-home__frame--tr {
  top: 1.25rem;
  right: 1.25rem;
  border-top: 3px solid var(--ph-gold);
  border-right: 3px solid var(--ph-gold);
}

.page-home__frame--bl {
  bottom: 1.25rem;
  left: 1.25rem;
  border-bottom: 3px solid var(--ph-gold);
  border-left: 3px solid var(--ph-gold);
}

.page-home__frame--br {
  bottom: 1.25rem;
  right: 1.25rem;
  border-bottom: 3px solid var(--ph-gold);
  border-right: 3px solid var(--ph-gold);
}

/* 刻度尺装饰 */
.page-home__scale {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 0.4rem;
  z-index: 3;
  pointer-events: none;
}

.page-home__scale--top {
  top: 1.05rem;
}

.page-home__scale--top span {
  display: block;
  width: 1px;
  height: 0.75rem;
  background: rgba(201, 162, 39, 0.45);
}

.page-home__scale--top span:nth-child(1),
.page-home__scale--top span:nth-child(4),
.page-home__scale--top span:nth-child(8) {
  height: 1.15rem;
  background: var(--ph-gold);
}

/* ===== 章节通用 ===== */
.page-home__section {
  padding-block: 4rem;
}

.page-home__section--brown {
  background: var(--ph-brown);
  color: var(--color-snow);
}

.page-home__section--tint {
  background: linear-gradient(135deg, #E4CD73 0%, #F7F2E7 78%);
  color: var(--color-ink);
}

.page-home__section .section-head {
  display: grid;
  gap: 1rem;
  margin-bottom: 2.5rem;
  align-items: start;
}

.page-home__section .section-head__desc {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.page-home__head-note {
  margin: 0.5rem 0 0;
  font-size: var(--font-caption);
  color: var(--ph-bronze);
  line-height: 1.7;
}

.page-home__section--brown .section-title,
.page-home__brand .section-title {
  color: var(--color-snow);
}

.page-home__section--brown .eyebrow,
.page-home__brand .eyebrow {
  color: var(--ph-gold-light);
}

.page-home__section--brown .page-home__head-note {
  color: rgba(247, 242, 231, 0.6);
}

.page-home__section--brown .section-head .section-index {
  color: var(--ph-gold-light);
}

/* ===== 01 同频更新 ===== */
.page-home__sync-grid {
  display: grid;
  gap: 2rem;
}

.page-home__sync-copy {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.page-home__sync-copy > p {
  margin: 0;
  line-height: 1.85;
  color: var(--color-bronze);
}

.page-home__list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.page-home__list--check li {
  position: relative;
  padding-left: 1.8rem;
  line-height: 1.7;
  font-size: 0.95rem;
  color: var(--color-ink);
}

.page-home__list--check li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.5em;
  width: 0.56rem;
  height: 0.56rem;
  background: var(--ph-gold);
  transform: rotate(45deg);
}

.page-home__sync-media {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}

.page-home__figure {
  margin: 0;
  border: 1px solid var(--ph-line);
  padding: 0.75rem;
  background: #FFFFFF;
}

.page-home__figure img {
  display: block;
  width: 100%;
  height: auto;
}

.page-home__figure figcaption {
  padding: 0.75rem 0 0.25rem;
  font-size: 0.8rem;
  color: var(--ph-bronze);
  line-height: 1.6;
}

/* ===== 02 使用记录 ===== */
.page-home__records-grid {
  display: grid;
  gap: 2rem;
}

.page-home__records-intro {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.page-home__records-intro > p {
  margin: 0;
  line-height: 1.85;
  color: rgba(247, 242, 231, 0.82);
}

.page-home__records-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1.25rem;
  align-items: center;
}

.page-home__text-link {
  color: var(--ph-gold-light);
  text-decoration: underline;
  text-underline-offset: 4px;
  font-size: 0.95rem;
  transition: color 0.2s ease;
}

.page-home__text-link:hover {
  color: var(--ph-gold);
}

.page-home__records-board {
  background: rgba(247, 242, 231, 0.06);
  border: 1px solid rgba(201, 162, 39, 0.35);
  padding: 1.75rem;
}

.page-home__records-board .o-board__tag {
  color: var(--ph-gold-light);
}

.page-home__records-board .o-board__title {
  color: var(--color-snow);
  font-family: var(--font-heading);
  margin: 0.5rem 0 1.25rem;
}

.page-home__list--record li {
  position: relative;
  padding-left: 1.5rem;
  line-height: 1.8;
  font-size: 0.9rem;
  color: rgba(247, 242, 231, 0.72);
}

.page-home__list--record li::before {
  content: "◆";
  position: absolute;
  left: 0;
  top: 0.5em;
  color: var(--ph-gold);
  font-size: 0.62rem;
}

.page-home__records-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
}

.page-home__stat {
  border-top: 2px solid var(--ph-gold);
  padding-top: 1rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.page-home__stat-num {
  font-family: var(--font-heading);
  font-size: 1.9rem;
  font-weight: 700;
  line-height: 1.2;
  color: var(--ph-gold-light);
}

.page-home__stat-label {
  font-size: 0.78rem;
  line-height: 1.6;
  color: rgba(247, 242, 231, 0.66);
}

/* ===== 03 活动周期 ===== */
.page-home__cycle-grid {
  display: grid;
  gap: 2rem;
}

.page-home__cycle-media {
  border: 1px solid var(--ph-line);
  padding: 0.75rem;
  background: var(--color-snow);
}

.page-home__cycle-media img {
  display: block;
  width: 100%;
  height: auto;
}

.page-home__cycle-copy {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.page-home__cycle-copy > p {
  margin: 0;
  line-height: 1.85;
  color: var(--color-bronze);
}

.page-home__cycle-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
}

.page-home__cycle-note {
  border-left: 3px solid var(--ph-violet);
  padding: 1.5rem 1.5rem;
  background: var(--color-snow);
  box-shadow: 6px 6px 0 rgba(216, 208, 194, 0.55);
}

.page-home__cycle-note-title {
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 1.05rem;
  margin: 0 0 0.6rem;
  color: var(--ph-violet);
}

.page-home__cycle-note p:last-child {
  margin: 0;
  font-size: 0.9rem;
  line-height: 1.8;
  color: var(--ph-bronze);
}

/* ===== 04 栏目速览 ===== */
.page-home__columns-grid {
  display: grid;
  gap: 1.5rem;
}

.page-home__column-card {
  display: flex;
  flex-direction: column;
  padding: 1.75rem;
  border: 1px solid rgba(59, 45, 30, 0.18);
  border-top: 4px solid var(--ph-gold);
  background: var(--color-snow);
  text-decoration: none;
  box-shadow: 0 2px 10px rgba(31, 26, 21, 0.06);
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.page-home__column-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 10px 24px rgba(31, 26, 21, 0.1);
  border-color: var(--ph-gold);
}

.page-home__column-card--gold {
  border-top-color: var(--ph-gold);
}

.page-home__column-card--brown {
  border-top-color: var(--ph-brown);
}

.page-home__column-card--blue {
  border-top-color: var(--ph-blue);
}

.page-home__column-num {
  font-size: 0.82rem;
  font-variant-numeric: tabular-nums;
  color: var(--ph-bronze);
  margin-bottom: 0.45rem;
}

.page-home__column-title {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 700;
  margin: 0 0 0.75rem;
  color: var(--color-ink);
}

.page-home__column-text {
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--ph-bronze);
  margin: 0 0 1.1rem;
  flex-grow: 1;
}

.page-home__column-more {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--ph-brown);
}

.page-home__column-more::after {
  content: "→";
  transition: transform 0.3s ease;
}

.page-home__column-card:hover .page-home__column-more::after {
  transform: translateX(4px);
}

/* ===== 品牌与支持 ===== */
.page-home__brand {
  background: var(--ph-ink);
  color: var(--color-snow);
}

.page-home__brand-row {
  display: grid;
  gap: 2.5rem;
}

.page-home__brand-copy > p {
  margin: 1rem 0 0;
  line-height: 1.85;
  color: rgba(247, 242, 231, 0.78);
  max-width: 46em;
}

.page-home__brand-links {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.page-home__brand-link {
  color: var(--ph-gold-light);
  text-decoration: none;
  font-weight: 600;
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s ease, color 0.2s ease;
}

.page-home__brand-link:hover {
  border-bottom-color: var(--ph-gold);
  color: var(--ph-gold);
}

.page-home__brand-facts {
  display: grid;
  gap: 1.25rem;
  border-left: 1px solid rgba(216, 208, 194, 0.22);
  padding-left: 1.5rem;
}

.page-home__brand-fact {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.page-home__brand-fact-label {
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--ph-gold);
}

.page-home__brand-fact-value {
  font-size: 0.95rem;
  line-height: 1.7;
  color: rgba(247, 242, 231, 0.85);
}

/* ===== 响应式 · 平板 ===== */
@media (min-width: 768px) {
  .page-home__section {
    padding-block: 5rem;
  }

  .page-home__section .section-head {
    grid-template-columns: 1fr 2fr;
    gap: 2rem;
  }

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

  .page-home__sync-media {
    grid-template-columns: 1fr 1fr;
  }

  .page-home__records-grid {
    grid-template-columns: 5fr 4fr;
    gap: 2rem;
  }

  .page-home__records-stats {
    grid-column: 1 / -1;
  }

  .page-home__cycle-grid {
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }

  .page-home__cycle-note {
    grid-column: 1 / -1;
  }

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

  .page-home__brand-row {
    grid-template-columns: 3fr 2fr;
    gap: 3rem;
  }
}

/* ===== 响应式 · 桌面 ===== */
@media (min-width: 1024px) {
  .page-home__hero {
    padding: 7rem 0 4.5rem;
  }

  .page-home__hero-inner {
    flex-direction: row;
    align-items: center;
    gap: 3.5rem;
  }

  .page-home__hero-entry {
    flex: 1 1 54%;
  }

  .page-home__hero-panel {
    flex: 1 1 46%;
  }

  .page-home__vertical-note {
    display: block;
  }

  .page-home__sync-grid {
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
  }

  .page-home__cycle-grid {
    grid-template-columns: 2fr 3fr 2fr;
    align-items: center;
  }

  .page-home__cycle-note {
    grid-column: auto;
  }
}