/* ============ 首页 · 深海信号台 ============ */

.page-home {
  --home-ink-soft: rgba(233, 242, 248, .78);
  --home-ink-dim: rgba(233, 242, 248, .58);
  background: var(--mist);
  color: var(--ink);
  font-family: var(--font-body);
}

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

.page-home .home-fig {
  margin: 0;
  border-radius: var(--r-m);
  overflow: hidden;
}

.page-home .home-fig img {
  width: 100%;
  height: auto;
  object-fit: cover;
}

.page-home .section {
  padding-block: clamp(50px, 7.5vw, 92px);
}

/* ---------- 首屏 ---------- */

.page-home .home-deck {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding-block: clamp(32px, 5.6vw, 72px) clamp(46px, 7vw, 96px);
  background:
    radial-gradient(118% 130% at 88% -12%, #164B72 0%, rgba(22, 75, 114, 0) 58%),
    linear-gradient(178deg, var(--sea-deep) 0%, var(--sea-blue) 64%, #113A5C 100%);
  color: #fff;
}

.page-home .home-deck::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(18, 214, 192, .09) 1px, transparent 1px),
    linear-gradient(90deg, rgba(18, 214, 192, .09) 1px, transparent 1px);
  background-size: 46px 46px;
  -webkit-mask-image: radial-gradient(112% 88% at 84% 4%, #000 4%, transparent 70%);
  mask-image: radial-gradient(112% 88% at 84% 4%, #000 4%, transparent 70%);
}

.page-home .home-deck::after {
  content: "";
  position: absolute;
  z-index: 0;
  right: -16%;
  top: -26%;
  width: min(60vw, 700px);
  aspect-ratio: 1 / 1;
  border-radius: 50%;
  pointer-events: none;
  background: radial-gradient(circle, rgba(18, 214, 192, .3) 0%, rgba(18, 214, 192, 0) 66%);
}

.page-home .home-deck .wrap {
  position: relative;
  z-index: 1;
}

.page-home .home-deck-grid {
  display: grid;
  gap: clamp(28px, 4.4vw, 50px);
}

@media (min-width: 980px) {
  .page-home .home-deck-grid {
    grid-template-columns: minmax(0, 5.2fr) minmax(0, 6.8fr);
    gap: clamp(34px, 4.4vw, 68px);
    align-items: start;
  }
}

.page-home .home-deck-lead {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.page-home .home-kicker {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin: 0;
  padding: 7px 14px;
  border: 1px solid rgba(18, 214, 192, .45);
  border-radius: var(--r-pill);
  background: rgba(18, 214, 192, .1);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--signal);
}

.page-home .home-title {
  margin: 18px 0 0;
  max-width: 16em;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(29px, 5.6vw, 52px);
  line-height: 1.2;
  letter-spacing: -.02em;
  color: #fff;
}

.page-home .home-title .hl {
  color: var(--signal);
  box-shadow: inset 0 -.42em 0 rgba(18, 214, 192, .16);
}

.page-home .home-lead {
  margin: 20px 0 0;
  max-width: 33em;
  font-size: clamp(15px, 1.6vw, 16.5px);
  line-height: 1.9;
  color: var(--home-ink-soft);
}

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

.page-home .home-meta {
  display: grid;
  gap: 12px 24px;
  width: 100%;
  margin: 30px 0 0;
  padding: 20px 0 0;
  border-top: 1px solid rgba(215, 222, 228, .18);
  list-style: none;
  font-size: 13.5px;
  line-height: 1.6;
  color: var(--home-ink-dim);
}

@media (min-width: 620px) {
  .page-home .home-meta {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

.page-home .home-meta .mono {
  display: block;
  margin-bottom: 4px;
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: .14em;
  color: var(--signal);
}

.page-home .home-side {
  display: grid;
  gap: clamp(16px, 2.4vw, 22px);
  align-content: start;
}

.page-home .home-hero-fig {
  border: 1px solid rgba(184, 238, 231, .34);
  box-shadow: var(--sh-3);
}

/* 目录卡片 */

.page-home .home-index {
  display: grid;
  gap: 10px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.page-home .home-index-item {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr) auto;
  align-items: center;
  gap: 13px;
  padding: 14px 15px;
  border: 1px solid rgba(215, 222, 228, .85);
  border-radius: 14px;
  background: rgba(251, 247, 240, .97);
  color: var(--ink);
  text-decoration: none;
  box-shadow: 0 10px 24px rgba(7, 30, 49, .18);
  transition: transform .28s var(--ease), border-color .28s var(--ease), box-shadow .28s var(--ease);
}

.page-home .home-index-item:hover {
  transform: translateY(-4px);
  border-color: var(--signal);
  box-shadow: 0 18px 36px rgba(7, 30, 49, .28);
}

.page-home .home-index-item:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 2px;
}

.page-home .home-index-num {
  min-width: 32px;
  padding: 5px 7px;
  border-radius: var(--r-s);
  background: var(--shoal);
  color: var(--sea-blue);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .08em;
  text-align: center;
}

.page-home .home-index-body {
  display: block;
  min-width: 0;
}

.page-home .home-index-title {
  display: block;
  font-size: 15.5px;
  font-weight: 800;
  line-height: 1.4;
  color: var(--sea-blue);
}

.page-home .home-index-text {
  display: block;
  margin-top: 3px;
  font-size: 13px;
  line-height: 1.6;
  color: var(--slate);
}

.page-home .home-index-go {
  color: var(--coral);
  font-size: 16px;
  transition: transform .24s var(--ease);
}

.page-home .home-index-item:hover .home-index-go {
  transform: translateX(4px);
}

/* ---------- 通用章节标题 ---------- */

.page-home .home-sec-head {
  max-width: 46em;
}

.page-home .home-sec-head h2 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 3.6vw, 36px);
  line-height: 1.26;
  letter-spacing: -.02em;
  color: var(--sea-blue);
}

.page-home .home-sec-head p {
  margin: 14px 0 0;
  max-width: 40em;
  font-size: 16px;
  line-height: 1.85;
  color: var(--slate);
}

/* ---------- 重新登录 ---------- */

.page-home .home-relogin {
  background: var(--mist);
}

.page-home .home-relogin-top {
  display: grid;
  gap: clamp(22px, 3vw, 40px);
  align-items: center;
}

@media (min-width: 900px) {
  .page-home .home-relogin-top {
    grid-template-columns: minmax(0, 5.6fr) minmax(0, 6.4fr);
  }
}

.page-home .home-relogin-top .home-fig {
  border: 1px solid var(--line);
  box-shadow: var(--sh-1);
}

.page-home .home-steps {
  margin-top: clamp(28px, 4vw, 46px);
}

.page-home .home-steps .step {
  padding-block: clamp(18px, 2.4vw, 26px);
}

.page-home .home-steps .step-num {
  display: inline-block;
  margin-bottom: 8px;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .12em;
  color: var(--signal);
}

.page-home .home-steps .step-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(17px, 2.2vw, 20px);
  line-height: 1.42;
  color: var(--sea-blue);
}

.page-home .home-steps .step p {
  margin: 10px 0 0;
  max-width: 42em;
  font-size: 15.5px;
  line-height: 1.82;
  color: var(--slate);
}

.page-home .home-steps .step-check {
  display: inline-block;
  margin-top: 12px;
  padding: 6px 13px;
  border: 1px solid rgba(18, 214, 192, .42);
  border-radius: var(--r-pill);
  background: rgba(184, 238, 231, .42);
  font-size: 13px;
  line-height: 1.5;
  color: var(--sea-blue);
}

.page-home .home-relogin .notice {
  margin-top: clamp(22px, 3vw, 32px);
}

/* ---------- 资讯栏目 ---------- */

.page-home .home-news {
  background: var(--cream);
}

.page-home .home-news-grid {
  display: grid;
  gap: clamp(22px, 3vw, 40px);
  align-items: center;
}

@media (min-width: 900px) {
  .page-home .home-news-grid {
    grid-template-columns: minmax(0, 6fr) minmax(0, 6fr);
  }
}

.page-home .home-news-intro h2 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 3.6vw, 36px);
  line-height: 1.26;
  letter-spacing: -.02em;
  color: var(--sea-blue);
}

.page-home .home-news-intro > p {
  margin: 14px 0 0;
  max-width: 40em;
  font-size: 16px;
  line-height: 1.85;
  color: var(--slate);
}

.page-home .home-news-intro .btn {
  margin-top: 22px;
}

.page-home .home-news-grid .home-fig {
  position: relative;
  border: 1px solid rgba(42, 35, 32, .12);
  box-shadow: var(--sh-2);
}

.page-home .home-news-grid .home-fig::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(18, 214, 192, .14) 1px, transparent 1px),
    linear-gradient(90deg, rgba(18, 214, 192, .14) 1px, transparent 1px);
  background-size: 34px 34px;
  -webkit-mask-image: linear-gradient(150deg, #000 0%, transparent 62%);
  mask-image: linear-gradient(150deg, #000 0%, transparent 62%);
}

.page-home .home-timeline {
  position: relative;
  display: grid;
  gap: 0;
  margin: clamp(30px, 4vw, 48px) 0 0;
  padding: 0;
  list-style: none;
}

.page-home .home-timeline::before {
  content: "";
  position: absolute;
  left: 6px;
  top: 16px;
  bottom: 16px;
  width: 1px;
  background: linear-gradient(180deg, rgba(18, 214, 192, .75), rgba(215, 222, 228, .9));
}

.page-home .home-tl-item {
  position: relative;
  padding: 16px 0 16px 34px;
  border-bottom: 1px solid rgba(215, 222, 228, .8);
}

.page-home .home-tl-item:last-child {
  border-bottom: 0;
}

.page-home .home-tl-dot {
  position: absolute;
  left: 1px;
  top: 25px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--signal);
  box-shadow: 0 0 0 4px rgba(18, 214, 192, .18);
}

.page-home .home-tl-title {
  margin: 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 16.5px;
  line-height: 1.5;
  color: var(--sea-blue);
}

.page-home .home-tl-title .mono {
  margin-left: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 400;
  letter-spacing: .12em;
  color: var(--slate);
}

.page-home .home-tl-text {
  margin: 6px 0 0;
  max-width: 44em;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--slate);
}

/* ---------- 工具与常见问题 ---------- */

.page-home .home-tools {
  background: var(--mist);
}

.page-home .home-tools-grid {
  display: grid;
  gap: clamp(22px, 3vw, 34px);
  margin-top: clamp(28px, 4vw, 44px);
}

@media (min-width: 920px) {
  .page-home .home-tools-grid {
    grid-template-columns: minmax(0, 6.4fr) minmax(0, 5.6fr);
    gap: clamp(28px, 3.4vw, 46px);
  }

  .page-home .home-faq-col {
    margin-top: 48px;
  }
}

.page-home .home-tool-col {
  display: grid;
  gap: 16px;
}

.page-home .home-tool-card {
  display: block;
  padding: 20px 20px 18px;
  border-radius: var(--r-m);
}

.page-home .home-tool-card .label {
  margin: 0 0 10px;
}

.page-home .home-tool-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 14px 0 0;
  padding: 14px 0 0;
  border-top: 1px dashed var(--line);
  list-style: none;
}

.page-home .home-tool-list li {
  padding: 5px 11px;
  border: 1px solid var(--line);
  border-radius: var(--r-pill);
  background: var(--mist);
  font-family: var(--font-mono);
  font-size: 11.5px;
  letter-spacing: .04em;
  color: var(--sea-blue);
}

.page-home .home-faq-col {
  align-self: start;
}

.page-home .home-faq-title {
  margin: 0 0 4px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 18px;
  line-height: 1.5;
  color: var(--sea-blue);
}

.page-home .home-faq-list {
  display: grid;
  gap: 0;
  margin: 14px 0 0;
  padding: 0;
  list-style: none;
}

.page-home .home-faq-list li {
  border-bottom: 1px solid var(--line);
}

.page-home .home-faq-list a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 14px 4px;
  color: var(--sea-blue);
  font-size: 15px;
  line-height: 1.55;
  text-decoration: none;
  transition: color .22s var(--ease), padding-left .22s var(--ease);
}

.page-home .home-faq-list a::after {
  content: "→";
  flex: none;
  color: var(--coral);
  transition: transform .22s var(--ease);
}

.page-home .home-faq-list a:hover,
.page-home .home-faq-list a:focus-visible {
  color: var(--coral);
  padding-left: 10px;
  outline: none;
}

.page-home .home-faq-list a:hover::after,
.page-home .home-faq-list a:focus-visible::after {
  transform: translateX(4px);
}

.page-home .home-faq-col .btn {
  margin-top: 22px;
}

/* ---------- 首次使用者 ---------- */

.page-home .home-start {
  background: var(--cream);
}

.page-home .home-start-fig {
  margin-top: clamp(24px, 3.4vw, 38px);
  border: 1px solid rgba(42, 35, 32, .12);
  box-shadow: var(--sh-1);
}

.page-home .home-guide-grid {
  display: grid;
  gap: 14px;
  margin: clamp(24px, 3.4vw, 36px) 0 0;
  padding: 0;
  list-style: none;
}

@media (min-width: 620px) {
  .page-home .home-guide-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 1000px) {
  .page-home .home-guide-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
  }
}

.page-home .home-guide-card {
  padding: 22px 20px 20px;
  border: 1px solid var(--line);
  border-radius: var(--r-m);
  background: var(--mist);
  box-shadow: 0 1px 0 rgba(42, 35, 32, .05), 0 8px 20px rgba(11, 46, 74, .06);
  transition: transform .28s var(--ease), border-color .28s var(--ease), box-shadow .28s var(--ease);
}

.page-home .home-guide-card:hover {
  transform: translateY(-4px);
  border-color: var(--signal);
  box-shadow: var(--sh-2);
}

.page-home .home-guide-num {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: .14em;
  color: var(--coral);
}

.page-home .home-guide-card h3 {
  margin: 10px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 17px;
  line-height: 1.44;
  color: var(--sea-blue);
}

.page-home .home-guide-card p {
  margin: 8px 0 0;
  font-size: 14.5px;
  line-height: 1.78;
  color: var(--slate);
}

.page-home .home-start-foot {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px 22px;
  margin-top: clamp(26px, 3.6vw, 38px);
  padding-top: clamp(20px, 3vw, 28px);
  border-top: 1px solid rgba(42, 35, 32, .12);
}

.page-home .home-start-foot p {
  margin: 0;
  max-width: 38em;
  font-size: 14px;
  line-height: 1.7;
  color: var(--slate);
}

/* ---------- 收尾 ---------- */

.page-home .home-close {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  background: linear-gradient(168deg, var(--sea-blue) 0%, var(--sea-deep) 100%);
  color: #fff;
}

.page-home .home-close::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(18, 214, 192, .08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(18, 214, 192, .08) 1px, transparent 1px);
  background-size: 52px 52px;
  -webkit-mask-image: radial-gradient(100% 90% at 10% 0%, #000 0%, transparent 72%);
  mask-image: radial-gradient(100% 90% at 10% 0%, #000 0%, transparent 72%);
}

.page-home .home-close .wrap {
  position: relative;
  z-index: 1;
}

.page-home .home-close-box {
  max-width: 62em;
}

.page-home .home-close h2 {
  margin: 12px 0 0;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(24px, 3.6vw, 38px);
  line-height: 1.24;
  letter-spacing: -.02em;
  color: #fff;
}

.page-home .home-close-box > p {
  margin: 16px 0 0;
  max-width: 40em;
  font-size: 16px;
  line-height: 1.85;
  color: var(--home-ink-soft);
}

.page-home .home-close .home-actions {
  margin-top: 28px;
}

.page-home .home-close .btn--ghost {
  color: rgba(233, 242, 248, .88);
  border-color: rgba(233, 242, 248, .32);
  background: rgba(233, 242, 248, .06);
}

.page-home .home-close .btn--ghost:hover {
  color: var(--signal);
  border-color: var(--signal);
  background: rgba(18, 214, 192, .12);
}

.page-home .home-close .home-close-contact {
  margin: 24px 0 0;
  max-width: none;
  font-family: var(--font-mono);
  font-size: 13px;
  letter-spacing: .02em;
  color: var(--home-ink-dim);
}

@media (max-width: 619px) {
  .page-home .home-index-item {
    grid-template-columns: auto minmax(0, 1fr);
    gap: 11px;
  }

  .page-home .home-index-go {
    display: none;
  }

  .page-home .home-meta {
    font-size: 13px;
  }
}