/* ============================================================
   model30 — 清爽现代风（去厚重线框）
   index.css：7 段首页模块 · 限宽内容 · 细线分隔
   ============================================================ */

/* ---------- 通用 ---------- */
.nb-secnum {
  display: inline-block;
  font-size: 10px;
  letter-spacing: .3em;
  text-transform: uppercase;
  color: var(--nb-blue);
}

.nb-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 28px;
  background: var(--nb-ink);
  color: #fff;
  border: none;
  font-size: 12px;
  letter-spacing: .16em;
  text-transform: uppercase;
  box-shadow: var(--nb-shadow);
  transition: .18s;
  cursor: pointer;
}

.nb-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--nb-shadow);
  background: var(--nb-blue);
}

/* ============================================================
   S1 HERO · 全宽 banner + 限宽内容容器
   ============================================================ */
.nb-hero {
  position: relative;
  padding: 70px 0 0;
  background: var(--nb-bone);
}

.nb-hero__grid {
  display: grid;
  grid-template-columns: 6fr 4fr;
  gap: 0;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 30px 60px;
}

.nb-hero__type {
  position: relative;
  padding: 50px 50px 50px 0;
}

.nb-hero__num {
  display: inline-block;
  font-size: 13px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--nb-blue);
  margin-right: 18px;
}

.nb-hero__kicker {
  display: inline-block;
  padding: 4px 12px;
  background: var(--nb-acid);
  color: var(--nb-ink);
  font-size: 10px;
  letter-spacing: .24em;
  text-transform: uppercase;
  border-radius: 999px;
}

.nb-hero__title {
  margin: 24px 0 18px;
  font-size: clamp(40px, 5.6vw, 84px);
  line-height: .98;
  letter-spacing: -.04em;
  text-transform: uppercase;
  color: var(--nb-ink);
}

.nb-hero__desc {
  max-width: 480px;
  margin: 0 0 30px;
  color: var(--nb-muted);
}

.nb-hero__cta-wrap {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.nb-hero__meta {
  font-size: 11px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--nb-muted);
}

.nb-hero__frame {
  position: relative;
  background: #fff;
  overflow: hidden;
  box-shadow: var(--nb-shadow);
}

.nb-hero__frame img {
  width: 100%;
  height: 100%;
  aspect-ratio: 4 / 5;
  object-fit: cover;
  display: block;
}

.nb-hero__tag {
  position: absolute;
  top: 18px;
  right: 18px;
  padding: 6px 12px;
  background: #fff;
  color: var(--nb-ink);
  font-size: 10px;
  letter-spacing: .2em;
  text-transform: uppercase;
  border-radius: 4px;
  box-shadow: var(--nb-shadow-sm);
}

/* ============================================================
   S2 MARQUEE · 跑马灯 · 全宽黑底
   ============================================================ */
.nb-marquee {
  position: relative;
  padding: 22px 0 0;
  overflow: hidden;
  background: var(--nb-ink);
}

.nb-marquee__track {
  display: flex;
  gap: 0;
  animation: nb-mq 40s linear infinite;
  will-change: transform;
  padding: 0 0 22px;
}

.nb-marquee:hover .nb-marquee__track {
  animation-play-state: paused;
}

@keyframes nb-mq {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

.nb-marquee__card {
  position: relative;
  flex: 0 0 auto;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 0 28px;
  border-right: 1px solid rgba(255,255,255,.18);
  color: #fff;
}

.nb-marquee__thumb {
  flex: 0 0 56px;
  width: 56px;
  height: 56px;
  display: block;
  border-radius: 4px;
  overflow: hidden;
}

.nb-marquee__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.nb-marquee__meta {
  display: flex;
  flex-direction: column;
  gap: 2px;
  white-space: nowrap;
}

.nb-marquee__cat {
  font-size: 10px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: rgba(255,255,255,.5);
}

.nb-marquee__price {
  font-size: 16px;
}

.nb-marquee__pause {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 10px 0;
  border-top: 1px solid rgba(255,255,255,.18);
  color: #fff;
  font-size: 10px;
  letter-spacing: .28em;
  text-transform: uppercase;
  background: #0a0a0a;
}

.nb-marquee__dot {
  width: 8px;
  height: 8px;
  background: var(--nb-acid);
  display: inline-block;
  border-radius: 50%;
}

/* ============================================================
   S3 BENTO · 不对称 6 格 · 限宽容器
   ============================================================ */
.nb-bento {
  padding: 80px 0;
  background: var(--nb-bone);
}

.nb-bento__head {
  display: flex;
  justify-content: space-between;
  gap: 40px;
  align-items: flex-end;
  margin-bottom: 40px;
}

.nb-bento__title {
  margin: 14px 0 0;
  font-size: clamp(26px, 3.2vw, 46px);
  line-height: 1;
  letter-spacing: -.03em;
  text-transform: uppercase;
}

.nb-bento__sub {
  max-width: 280px;
  margin: 0;
  color: var(--nb-muted);
  font-size: 14px;
}

.nb-bento__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-template-rows: 260px 200px 200px;
  gap: 16px;
}

.nb-bento__tile {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 18px;
  background: #fff;
  border-radius: 6px;
  overflow: hidden;
  transition: .2s;
  box-shadow: var(--nb-shadow-sm);
}

.nb-bento__tile:hover {
  transform: translateY(-3px);
  box-shadow: var(--nb-shadow);
}

/* A 大：跨 2 列 2 行 */
.nb-bento__a { grid-column: 1 / 3; grid-row: 1 / 3; padding: 0; }
/* B 小 1x1 */
.nb-bento__b { grid-column: 3 / 4; grid-row: 1 / 2; }
/* C 小 1x1 */
.nb-bento__c { grid-column: 4 / 5; grid-row: 1 / 2; }
/* D 大：跨 2 列 1 行（水平横幅） */
.nb-bento__d { grid-column: 3 / 5; grid-row: 2 / 3; flex-direction: row; align-items: stretch; padding: 0; gap: 0; }
/* E 小 1x1 */
.nb-bento__e { grid-column: 1 / 2; grid-row: 3 / 4; }
/* F 横排 */
.nb-bento__f { grid-column: 2 / 5; grid-row: 3 / 4; flex-direction: row; align-items: center; gap: 20px; padding: 16px 22px; }

.nb-bento__media {
  position: relative;
  overflow: hidden;
  background: #f0f0f0;
  margin-bottom: 10px;
  flex: 1;
}

.nb-bento__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: .4s;
}

.nb-bento__tile:hover .nb-bento__media img {
  transform: scale(1.05);
}

.nb-bento__a .nb-bento__media {
  margin: 14px 14px 12px;
  flex: 1;
}

.nb-bento__d .nb-bento__media {
  flex: 1.2;
  margin: 0;
  min-height: 180px;
}

.nb-bento__d .nb-bento__media img { aspect-ratio: unset; height: 100%; object-fit: cover; }

.nb-bento__f .nb-bento__media {
  flex: 0 0 84px;
  height: 84px;
  width: 84px;
  margin: 0;
  border-radius: 4px;
}

.nb-bento__f .nb-bento__media img {
  aspect-ratio: 1 / 1;
}

.nb-bento__info {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  gap: 6px;
}

.nb-bento__d .nb-bento__info {
  flex: 1;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  padding: 0 28px;
  gap: 6px;
}

.nb-bento__f .nb-bento__info {
  flex: 1;
  margin: 0;
}

.nb-bento__cat {
  font-size: 10px;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: var(--nb-muted);
}

.nb-bento__name {
  font-size: 14px;
  margin-top: 2px;
  color: var(--nb-ink);
}

.nb-bento__price {
  font-size: 17px;
  font-weight: 600;
  white-space: nowrap;
}

.nb-bento__a .nb-bento__name { font-size: 20px; }
.nb-bento__d .nb-bento__name { font-size: 18px; }

.nb-bento__idx {
  position: absolute;
  top: 12px;
  left: 12px;
  padding: 2px 8px;
  background: var(--nb-acid);
  color: var(--nb-ink);
  font-size: 10px;
  letter-spacing: .2em;
  border-radius: 4px;
  z-index: 2;
}

/* ============================================================
   S4 SHOWCASE · 交替行 · 限宽 + 细线分隔
   ============================================================ */
.nb-showcase {
  padding: 80px 0;
  background: #fff;
}

.nb-s-row {
  position: relative;
  display: flex;
  max-width: 1280px;
  margin: 0 auto;
  gap: 50px;
  padding: 40px 30px;
  min-height: 480px;
  align-items: center;
  border-bottom: 1px solid #eee;
}

.nb-s-row:last-child {
  border-bottom: 0;
}

.nb-s-row--rev { flex-direction: row-reverse; }

.nb-s-row__num {
  position: absolute;
  top: 40px;
  left: 30px;
  z-index: 3;
  font-size: clamp(60px, 8vw, 120px);
  line-height: .8;
  font-weight: 800;
  letter-spacing: -.04em;
  color: rgba(26,26,26,.06);
  pointer-events: none;
  user-select: none;
}

.nb-s-row__media {
  position: relative;
  flex: 0 0 46%;
  height: 400px;
  overflow: hidden;
  border-radius: 6px;
  background: #f5f5f5;
  box-shadow: var(--nb-shadow-sm);
}

.nb-s-row__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: .5s;
}

.nb-s-row:hover .nb-s-row__media img {
  transform: scale(1.03);
}

.nb-s-row__type {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-width: 0;
}

.nb-s-row__cat {
  font-size: 11px;
  letter-spacing: .24em;
  text-transform: uppercase;
  color: var(--nb-blue);
}

.nb-s-row__title {
  margin: 14px 0 14px;
  font-size: clamp(28px, 3.4vw, 50px);
  line-height: 1.02;
  letter-spacing: -.03em;
  text-transform: uppercase;
}

.nb-s-row__desc {
  max-width: 480px;
  margin: 0 0 26px;
  color: var(--nb-muted);
}

.nb-s-row__bottom {
  display: flex;
  align-items: center;
  gap: 24px;
  padding-top: 18px;
  border-top: 1px solid #eee;
}

.nb-s-row__price {
  font-size: 22px;
  font-weight: 700;
}

.nb-s-row__btn {
  padding: 9px 18px;
  background: var(--nb-ink);
  color: #fff;
  font-size: 11px;
  letter-spacing: .18em;
  text-transform: uppercase;
  border-radius: 4px;
  transition: .16s;
}

.nb-s-row__btn:hover {
  background: var(--nb-blue);
  color: #fff;
}

/* ============================================================
   S5 CATALOGUE · 4 列产品卡片网格（参考图风格）
   ============================================================ */
.nb-catalogue {
  padding: 80px 0;
  background: var(--nb-bone);
}

.nb-cata__head {
  display: flex;
  align-items: center;
  gap: 24px;
  padding-bottom: 28px;
  border-bottom: 1px solid #e0ddd5;
  margin-bottom: 40px;
}

.nb-cata__title {
  margin: 0;
  font-size: clamp(22px, 2.6vw, 36px);
  letter-spacing: .08em;
  text-transform: uppercase;
}

.nb-cata__more {
  margin-left: auto;
  padding: 9px 18px;
  background: var(--nb-ink);
  color: #fff;
  font-size: 11px;
  letter-spacing: .16em;
  text-transform: uppercase;
  border-radius: 4px;
  transition: .16s;
}

.nb-cata__more:hover {
  background: var(--nb-blue);
}

/* 4 列卡片网格 */
.nb-cata__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px 24px;
}

.nb-cata__card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  padding: 18px 16px 20px;
  background: #fff;
  border-radius: 8px;
  transition: .2s;
  box-shadow: var(--nb-shadow-sm);
}

.nb-cata__card:hover {
  transform: translateY(-4px);
  box-shadow: var(--nb-shadow);
}

.nb-cata__card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.nb-cata__reviews {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 10px;
  color: var(--nb-muted);
}

.nb-cata__stars {
  display: flex;
  gap: 1px;
  color: var(--nb-blue);
  font-size: 10px;
}

.nb-cata__badge {
  font-size: 9px;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--nb-blue);
  font-weight: 600;
}

.nb-cata__img {
  aspect-ratio: 1 / 1;
  background: #f7f7f7;
  border-radius: 6px;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

.nb-cata__img img {
  width: 90%;
  height: 90%;
  object-fit: contain;
  transition: .4s;
}

.nb-cata__card:hover .nb-cata__img img {
  transform: scale(1.06);
}

.nb-cata__info {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.nb-cata__cat-tag {
  font-size: 9px;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--nb-muted);
}

.nb-cata__name {
  font-size: 13px;
  color: var(--nb-ink);
  text-transform: none;
  line-height: 1.4;
}

.nb-cata__price-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 2px;
}

.nb-cata__price {
  font-size: 16px;
  font-weight: 700;
  color: var(--nb-ink);
}

.nb-cata__add {
  padding: 6px 12px;
  background: var(--nb-ink);
  color: #fff;
  font-size: 10px;
  letter-spacing: .16em;
  text-transform: uppercase;
  border-radius: 4px;
  transition: .16s;
}

.nb-cata__add:hover {
  background: var(--nb-blue);
}

/* ============================================================
   S6 CTA BAR · 黑底 · 限宽内容
   ============================================================ */
.nb-cta {
  background: var(--nb-ink);
}

.nb-cta__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  padding: 36px 0;
}

.nb-cta__text {
  margin: 0;
  font-size: clamp(18px, 2.2vw, 28px);
  line-height: 1.3;
  color: #fff;
  text-transform: none;
  letter-spacing: -.01em;
}

.nb-cta__text span {
  color: var(--nb-acid);
}

.nb-cta__btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 30px;
  background: var(--nb-acid);
  color: var(--nb-ink);
  font-size: 12px;
  letter-spacing: .2em;
  text-transform: uppercase;
  border-radius: 6px;
  transition: .18s;
}

.nb-cta__btn:hover {
  background: #fff;
}

/* ============================================================
   S7 PERKS · 4 栏 · 限宽
   ============================================================ */
.nb-perks {
  background: #fff;
  padding: 60px 0;
}

.nb-perks__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.nb-perk {
  position: relative;
  padding: 30px 26px;
  background: var(--nb-bone);
  border-radius: 8px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: .18s;
}

.nb-perk:hover {
  background: var(--nb-acid);
}

.nb-perk__no {
  font-size: 28px;
  line-height: 1;
  font-weight: 700;
  letter-spacing: -.02em;
  color: var(--nb-blue);
}

.nb-perk__body {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.nb-perk i {
  font-size: 24px;
  color: var(--nb-ink);
}

.nb-perk__title {
  font-size: 14px;
  letter-spacing: .06em;
  text-transform: uppercase;
}

.nb-perk__desc {
  margin: 0;
  font-size: 13px;
  color: var(--nb-muted);
}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width: 1099px) {
  .nb-hero__grid { grid-template-columns: 1fr; gap: 30px; }
  .nb-hero__type { padding: 30px 10px; }

  .nb-bento__head { flex-direction: column; align-items: flex-start; }
  .nb-bento__grid {
    grid-template-columns: repeat(2, 1fr);
    grid-template-rows: repeat(8, auto);
  }
  .nb-bento__a { grid-column: 1 / 3; grid-row: 1 / 3; }
  .nb-bento__b { grid-column: 1 / 2; grid-row: 3 / 4; }
  .nb-bento__c { grid-column: 2 / 3; grid-row: 3 / 4; }
  .nb-bento__d { grid-column: 1 / 3; grid-row: 4 / 5; }
  .nb-bento__e { grid-column: 1 / 2; grid-row: 5 / 6; }
  .nb-bento__f { grid-column: 2 / 3; grid-row: 5 / 6; }

  .nb-s-row { min-height: 0; }
  .nb-s-row__media { height: 320px; }

  .nb-cata__grid { grid-template-columns: repeat(3, 1fr); }
  .nb-perks__grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 767px) {
  .nb-hero { padding-top: 40px; }
  .nb-hero__grid { padding: 0 20px 40px; }
  .nb-hero__frame img { aspect-ratio: 4 / 5; }

  .nb-marquee__card { padding: 0 18px; gap: 10px; }
  .nb-marquee__thumb { flex: 0 0 44px; width: 44px; height: 44px; }

  .nb-bento { padding: 50px 0; }
  .nb-bento__grid {
    grid-template-columns: 1fr;
    grid-template-rows: auto;
  }
  .nb-bento__a,
  .nb-bento__b,
  .nb-bento__c,
  .nb-bento__d,
  .nb-bento__e,
  .nb-bento__f {
    grid-column: auto;
    grid-row: auto;
  }
  .nb-bento__d { flex-direction: column; }

  .nb-showcase { padding: 50px 0; }
  .nb-s-row { flex-direction: column !important; gap: 24px; padding: 30px 20px; }
  .nb-s-row__media {
    flex: none;
    width: 100%;
    height: 260px;
  }
  .nb-s-row__type { padding: 0; }
  .nb-s-row__num { font-size: 60px; top: 20px; left: 20px; }

  .nb-catalogue { padding: 50px 0; }
  .nb-cata__head { flex-direction: column; align-items: flex-start; gap: 14px; }
  .nb-cata__more { margin-left: 0; }
  .nb-cata__grid { grid-template-columns: repeat(2, 1fr); gap: 20px 14px; }

  .nb-cta__inner { flex-direction: column; align-items: flex-start; padding: 28px 0; }

  .nb-perks__grid { grid-template-columns: 1fr; }
}