/* ===========================================================================
   页面结构与组件样式
   一般不需要改这里；换颜色、字体、圆角请改 theme.css。
   =========================================================================== */

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  background: var(--c-bg);
  color: var(--c-text);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.85;
  letter-spacing: 0.02em;
  overflow-x: hidden;
}

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

button,
input,
textarea {
  font-family: inherit;
  font-size: inherit;
  color: inherit;
}

.page {
  max-width: var(--max-width);
  margin: 0 auto;
  background: var(--c-bg);
  position: relative;
  overflow: hidden;
}

/* --------------------------------------------------------------- 通用板块 */

.section {
  padding: 46px var(--page-padding);
}

.section--soft {
  background: var(--c-surface-soft);
}

.section__head {
  text-align: center;
  margin-bottom: 26px;
}

.section__title {
  font-family: var(--font-title);
  font-size: 21px;
  font-weight: 500;
  letter-spacing: 0.22em;
  margin: 0;
  color: var(--c-primary-deep);
}

.section__sub {
  margin: 6px 0 0;
  font-size: 12px;
  letter-spacing: 0.24em;
  color: var(--c-text-soft);
  text-transform: uppercase;
}

.section__rule {
  width: 46px;
  height: 1px;
  margin: 12px auto 0;
  background: var(--c-accent);
  opacity: 0.55;
}

/* ------------------------------------------------------------------- 封面 */

.cover {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  padding: 58px var(--page-padding) 42px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: var(--gradient-cover);
}

.cover::before,
.cover::after {
  content: "";
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
}

.cover::before {
  width: 320px;
  height: 320px;
  top: -120px;
  right: -110px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.9), rgba(255, 255, 255, 0));
  opacity: var(--pattern-opacity);
}

.cover::after {
  width: 260px;
  height: 260px;
  bottom: -100px;
  left: -90px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.75), rgba(255, 255, 255, 0));
  opacity: var(--pattern-opacity);
}

.cover__inner {
  position: relative;
  z-index: 1;
  width: 100%;
}

.cover__kicker {
  font-size: 13px;
  letter-spacing: 0.55em;
  color: var(--c-primary);
  margin: 0 0 6px;
  text-indent: 0.55em;
}

.cover__english {
  font-size: 10px;
  letter-spacing: 0.34em;
  color: var(--c-text-soft);
  margin: 0 0 34px;
  text-indent: 0.34em;
}

.cover__names {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin-bottom: 10px;
}

.cover__name {
  font-family: var(--font-title);
  font-size: 34px;
  letter-spacing: 0.12em;
  color: var(--c-primary-deep);
  margin: 0;
  text-indent: 0.12em;
}

.cover__seal {
  flex: none;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid var(--c-accent);
  color: var(--c-accent);
  font-family: var(--font-title);
  font-size: 19px;
  line-height: 40px;
  text-align: center;
}

.cover__date {
  font-family: var(--font-title);
  font-size: 19px;
  letter-spacing: 0.16em;
  color: var(--c-text);
  margin: 14px 0 0;
}

.cover__venue {
  margin: 6px 0 0;
  font-size: 13px;
  letter-spacing: 0.1em;
  color: var(--c-text-soft);
}

.cover__divider {
  width: 1px;
  height: 46px;
  margin: 30px auto 26px;
  background: linear-gradient(to bottom, transparent, var(--c-accent), transparent);
}

/* ------------------------------------------------------------------ 倒计时 */

.countdown {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-top: 4px;
}

.countdown__item {
  min-width: 62px;
  padding: 10px 6px 8px;
  border-radius: var(--radius-sm);
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--c-line);
  backdrop-filter: blur(4px);
}

.countdown__num {
  font-family: var(--font-title);
  font-size: 21px;
  line-height: 1.1;
  color: var(--c-primary-deep);
}

.countdown__label {
  font-size: 10px;
  letter-spacing: 0.2em;
  color: var(--c-text-soft);
  margin-top: 4px;
  text-indent: 0.2em;
}

.countdown__done {
  font-family: var(--font-title);
  font-size: 17px;
  color: var(--c-primary-deep);
  letter-spacing: 0.12em;
}

.cover__scroll {
  position: relative;
  z-index: 1;
  margin-top: 38px;
  font-size: 11px;
  letter-spacing: 0.3em;
  color: var(--c-text-soft);
  text-indent: 0.3em;
  animation: floatDown 2.4s ease-in-out infinite;
}

.cover__music-hint {
  display: none;
  margin: 22px 0 0;
  font-size: 11px;
  letter-spacing: 0.24em;
  color: var(--c-text-soft);
  text-indent: 0.24em;
  animation: hintPulse 2.2s ease-in-out infinite;
}

.cover__music-hint.is-on {
  display: block;
}

@keyframes hintPulse {
  0%,
  100% {
    opacity: 0.55;
  }
  50% {
    opacity: 1;
  }
}

@keyframes floatDown {
  0%,
  100% {
    transform: translateY(0);
    opacity: 0.7;
  }
  50% {
    transform: translateY(6px);
    opacity: 1;
  }
}

/* ------------------------------------------------------------------ 邀请函 */

.invite {
  text-align: center;
}

.invite__text {
  font-size: 15px;
  line-height: 2.2;
  color: var(--c-text);
  margin: 0;
}

.invite__text span {
  display: block;
}

.invite__sign {
  margin-top: 26px;
  font-family: var(--font-title);
  font-size: 16px;
  letter-spacing: 0.18em;
  color: var(--c-primary-deep);
}

/* --------------------------------------------------------------- 婚礼信息 */

.info-list {
  display: grid;
  gap: 14px;
}

.info-card {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 18px 18px 18px 16px;
  border-radius: var(--radius);
  background: var(--c-surface);
  border: 1px solid var(--c-line);
  box-shadow: var(--shadow-soft);
}

.info-card__icon {
  flex: none;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--c-surface-soft);
  color: var(--c-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-title);
  font-size: 16px;
}

.info-card__body {
  flex: 1;
  min-width: 0;
}

.info-card__label {
  font-size: 11px;
  letter-spacing: 0.24em;
  color: var(--c-text-soft);
  text-indent: 0.24em;
  margin: 2px 0 4px;
}

.info-card__main {
  font-family: var(--font-title);
  font-size: 17px;
  color: var(--c-text);
  margin: 0;
  line-height: 1.6;
}

.info-card__sub {
  margin: 4px 0 0;
  font-size: 13px;
  color: var(--c-text-soft);
}

.info-card__times {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 18px;
  margin-top: 8px;
}

.info-card__time {
  font-size: 13px;
  color: var(--c-text-soft);
}

.info-card__time b {
  font-family: var(--font-title);
  font-size: 16px;
  color: var(--c-primary-deep);
  font-weight: 500;
  margin-left: 6px;
}

.info-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.btn {
  flex: 1 1 130px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 12px 18px;
  border: 1px solid var(--c-primary);
  border-radius: var(--radius-pill);
  background: var(--c-primary);
  color: var(--c-text-invert);
  font-size: 14px;
  letter-spacing: 0.08em;
  text-decoration: none;
  cursor: pointer;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.btn:active {
  transform: scale(0.98);
  opacity: 0.88;
}

.btn--ghost {
  background: transparent;
  color: var(--c-primary-deep);
}

/* ------------------------------------------------------------------ 时间轴 */

.timeline {
  position: relative;
  margin: 0;
  padding: 4px 0 0 0;
  list-style: none;
}

.timeline::before {
  content: "";
  position: absolute;
  left: 60px;
  top: 12px;
  bottom: 12px;
  width: 1px;
  background: var(--c-line);
}

.timeline__item {
  position: relative;
  display: flex;
  gap: 20px;
  padding: 0 0 22px;
}

.timeline__item:last-child {
  padding-bottom: 0;
}

.timeline__time {
  flex: none;
  width: 46px;
  padding-top: 2px;
  font-family: var(--font-title);
  font-size: 15px;
  color: var(--c-primary-deep);
  text-align: right;
}

.timeline__dot {
  position: absolute;
  left: 55px;
  top: 8px;
  width: 11px;
  height: 11px;
  border-radius: 50%;
  background: var(--c-surface);
  border: 2px solid var(--c-primary);
}

.timeline__body {
  flex: 1;
  min-width: 0;
  padding-left: 12px;
}

.timeline__title {
  margin: 0;
  font-size: 15px;
  color: var(--c-text);
}

.timeline__desc {
  margin: 2px 0 0;
  font-size: 12.5px;
  color: var(--c-text-soft);
  line-height: 1.7;
}

/* ------------------------------------------------------------------ 照片墙 */

.gallery {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 10px;
}

.gallery__item {
  position: relative;
  border-radius: var(--radius-sm);
  overflow: hidden;
  aspect-ratio: 3 / 4;
  background: linear-gradient(150deg, var(--c-primary-soft), var(--c-surface-soft));
  cursor: zoom-in;
  border: 1px solid var(--c-line);
}

.gallery__item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.gallery__item:active img {
  transform: scale(1.03);
}

.gallery__item.is-empty {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 6px;
  cursor: default;
  background: linear-gradient(150deg, var(--c-primary-soft), var(--c-surface));
}

.gallery__placeholder {
  font-family: var(--font-title);
  font-size: 15px;
  color: var(--c-primary);
  letter-spacing: 0.16em;
}

.gallery__hint {
  font-size: 11px;
  color: var(--c-text-soft);
  letter-spacing: 0.08em;
}

.gallery__caption {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 18px 10px 8px;
  font-size: 12px;
  color: #fff;
  background: linear-gradient(to top, rgba(0, 0, 0, 0.45), transparent);
}

/* ------------------------------------------------------------------ 留言板 */

.guestbook__form {
  display: grid;
  gap: 10px;
}

.field {
  width: 100%;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--c-line);
  background: var(--c-surface);
  outline: none;
  transition: border-color 0.2s ease;
}

.field:focus {
  border-color: var(--c-primary);
}

textarea.field {
  min-height: 92px;
  resize: vertical;
  line-height: 1.7;
}

.guestbook__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  font-size: 12px;
  color: var(--c-text-soft);
}

.guestbook__status {
  min-height: 18px;
}

.guestbook__list {
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}

.guestbook__item {
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  background: var(--c-surface);
  border: 1px solid var(--c-line);
}

.guestbook__item-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 4px;
}

.guestbook__name {
  font-size: 14px;
  color: var(--c-primary-deep);
}

.guestbook__time {
  font-size: 11px;
  color: var(--c-text-soft);
}

.guestbook__text {
  margin: 0;
  font-size: 14px;
  color: var(--c-text);
  word-break: break-word;
}

.guestbook__empty {
  margin-top: 20px;
  text-align: center;
  font-size: 13px;
  color: var(--c-text-soft);
}

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

.footer {
  padding: 52px var(--page-padding) 62px;
  text-align: center;
  background: var(--gradient-footer);
}

.footer__title {
  font-family: var(--font-title);
  font-size: 20px;
  letter-spacing: 0.24em;
  color: var(--c-primary-deep);
  margin: 0 0 10px;
  text-indent: 0.24em;
}

.footer__names {
  font-family: var(--font-title);
  font-size: 15px;
  letter-spacing: 0.2em;
  color: var(--c-text);
  margin: 0 0 6px;
}

.footer__note {
  font-size: 12px;
  color: var(--c-text-soft);
  letter-spacing: 0.1em;
  margin: 0;
}

/* ------------------------------------------------------------ 音乐按钮 */

.music-btn {
  position: fixed;
  right: max(16px, calc(50% - var(--max-width) / 2 + 16px));
  bottom: calc(18px + env(safe-area-inset-bottom, 0px));
  z-index: 60;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--c-line);
  background: rgba(255, 255, 255, 0.9);
  color: var(--c-primary);
  display: none;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-soft);
  cursor: pointer;
  backdrop-filter: blur(6px);
}

.music-btn.is-ready {
  display: flex;
}

.music-btn__icon {
  font-size: 17px;
  line-height: 1;
}

.music-btn.is-playing .music-btn__icon {
  animation: spin 3.4s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

/* ------------------------------------------------------------ 大图预览 */

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 80;
  background: rgba(24, 16, 18, 0.92);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

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

.lightbox img {
  max-width: 100%;
  max-height: 86vh;
  border-radius: var(--radius-sm);
}

/* ------------------------------------------------------------ 设计模式面板 */

.design-panel {
  position: fixed;
  left: 50%;
  transform: translateX(-50%);
  bottom: calc(16px + env(safe-area-inset-bottom, 0px));
  z-index: 70;
  display: none;
  gap: 8px;
  padding: 10px 12px;
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, 0.96);
  border: 1px solid var(--c-line);
  box-shadow: var(--shadow);
  align-items: center;
}

.design-panel.is-open {
  display: flex;
}

.design-panel__label {
  font-size: 11px;
  color: var(--c-text-soft);
  letter-spacing: 0.16em;
  padding: 0 4px;
  white-space: nowrap;
}

.swatch {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  border: 2px solid transparent;
  cursor: pointer;
  padding: 0;
}

.swatch.is-active {
  border-color: var(--c-text);
}

.swatch[data-theme-value="rose"] {
  background: linear-gradient(135deg, #b0304b, #f3d3da);
}

.swatch[data-theme-value="ink"] {
  background: linear-gradient(135deg, #2f4a63, #d5e0e9);
}

.swatch[data-theme-value="gold"] {
  background: linear-gradient(135deg, #9a7b3f, #efe2c8);
}

/* --------------------------------------------------------------- 入场动画 */

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}

/* ------------------------------------------------------------------ 宽屏 */

@media (min-width: 640px) {
  body {
    background: #efe6e6;
  }

  .page {
    box-shadow: 0 0 60px rgba(80, 50, 55, 0.16);
    min-height: 100vh;
  }
}