:root {
  color-scheme: light;
  --paper: #ffffff;
  --surface: #ffffff;
  --surface-2: #fafafa;
  --ink: #101010;
  --ink-2: #474747;
  --ink-3: #8b8b8b;
  --line: #e6e6e6;
  --line-2: #cfcfcf;
  --head-bg: rgba(255, 255, 255, 0.84);
  --card-shadow: 0 14px 34px -26px rgba(0, 0, 0, 0.4);
  --panel-shadow: -60px 0 100px -80px rgba(0, 0, 0, 0.7);
  --scrim: rgba(0, 0, 0, 0.26);
  --img-bg: #f0f0f0;
  /* 时间轴竖线的横坐标，必须等于圆点列的中心 */
  --axis-x: 118px;
  /* 正文用系统字体：中文由系统无衬线体渲染，省掉整页 1.5MB+ 的 woff2 分片下载 */
  --sans: ui-sans-serif, system-ui, -apple-system, "PingFang SC", "Hiragino Sans GB",
    "Microsoft YaHei", "Source Han Sans SC", "Noto Sans CJK SC", sans-serif;
  /* 标题保留 MiSans VF：首屏只用少量字形，浏览器只会取 1~2 个 unicode-range 分片 */
  --display: "MiSans VF", "MiSans", var(--sans);
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --paper: #0b0b0b;
  --surface: #111111;
  --surface-2: #0e0e0e;
  --ink: #f0f0f0;
  --ink-2: #b3b3b3;
  --ink-3: #787878;
  --line: #242424;
  --line-2: #363636;
  --head-bg: rgba(11, 11, 11, 0.84);
  --card-shadow: 0 14px 34px -26px rgba(0, 0, 0, 0.9);
  --panel-shadow: -60px 0 100px -60px rgba(0, 0, 0, 0.9);
  --scrim: rgba(0, 0, 0, 0.6);
  --img-bg: #161616;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    color-scheme: dark;
    --paper: #0b0b0b;
    --surface: #111111;
    --surface-2: #0e0e0e;
    --ink: #f0f0f0;
    --ink-2: #b3b3b3;
    --ink-3: #787878;
    --line: #242424;
    --line-2: #363636;
    --head-bg: rgba(11, 11, 11, 0.84);
    --card-shadow: 0 14px 34px -26px rgba(0, 0, 0, 0.9);
    --panel-shadow: -60px 0 100px -60px rgba(0, 0, 0, 0.9);
    --scrim: rgba(0, 0, 0, 0.6);
    --img-bg: #161616;
  }
}

* { box-sizing: border-box; }

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

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.7;
  font-weight: 400;
  letter-spacing: 0.01em;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  transition: background-color 0.24s ease, color 0.24s ease;
}

body.is-reading { overflow: hidden; }

a { color: inherit; text-decoration: none; }
button { font-family: inherit; }

/* ---------- 顶栏 ---------- */
.head {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 18px clamp(20px, 5vw, 56px);
  background: var(--head-bg);
  backdrop-filter: saturate(160%) blur(12px);
  border-bottom: 1px solid var(--line);
}

.brand { display: flex; align-items: baseline; gap: 12px; }
.brand-name { font-size: 15px; font-weight: 500; letter-spacing: 0.04em; }
.brand-sub { font-size: 12px; color: var(--ink-3); letter-spacing: 0.12em; }

.head-tools { display: flex; align-items: center; gap: 16px; }

.search input {
  width: clamp(110px, 20vw, 180px);
  padding: 6px 2px;
  border: 0;
  border-bottom: 1px solid var(--line-2);
  background: transparent;
  color: var(--ink);
  font-family: var(--sans);
  font-size: 13.5px;
  outline: none;
  transition: border-color 0.2s;
}
.search input::placeholder { color: var(--ink-3); }
.search input:focus { border-color: var(--ink); }
.search input::-webkit-search-cancel-button { -webkit-appearance: none; }

.head-count {
  font-size: 12.5px;
  color: var(--ink-3);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.06em;
}

.theme-toggle {
  appearance: none;
  width: 26px;
  height: 26px;
  padding: 0;
  border: 1px solid var(--line-2);
  border-radius: 50%;
  background: transparent;
  color: var(--ink-2);
  font-size: 11px;
  line-height: 1;
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s, background-color 0.2s;
}
.theme-toggle:hover { border-color: var(--ink-3); color: var(--ink); }

/* ---------- 主体 ---------- */
main {
  width: min(920px, calc(100% - clamp(32px, 8vw, 80px)));
  margin: 0 auto;
  padding: 0 0 80px;
}

/* ---------- 开场统计 ---------- */
.lede { padding: clamp(48px, 9vw, 88px) 0 clamp(28px, 5vw, 44px); }

.lede-main { max-width: 620px; }

.lede-count {
  margin: 0;
  display: flex;
  align-items: baseline;
  gap: 14px;
  font-size: 1rem;
}
.lede-count span {
  font-size: clamp(60px, 9vw, 92px);
  font-weight: 200;
  line-height: 0.92;
  letter-spacing: -0.035em;
  font-variant-numeric: tabular-nums;
}
.lede-count em {
  font-style: normal;
  font-size: 13px;
  color: var(--ink-3);
  letter-spacing: 0.16em;
}

.lede-desc {
  margin: 24px 0 0;
  color: var(--ink-2);
  font-size: 15px;
  line-height: 1.95;
  max-width: 58ch;
}

.lede-stats {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(20px, 5vw, 52px);
  margin: 36px 0 0;
  padding-top: 22px;
  border-top: 1px solid var(--line);
}
.lede-stats div { margin: 0; }
.lede-stats dt {
  margin: 0 0 4px;
  font-size: 11.5px;
  color: var(--ink-3);
  letter-spacing: 0.14em;
}
.lede-stats dd {
  margin: 0;
  font-size: 17px;
  font-weight: 450;
  font-variant-numeric: tabular-nums;
}

/* ---------- 筛选 ---------- */
.filters {
  display: flex;
  flex-wrap: wrap;
  gap: clamp(14px, 3vw, 26px);
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

.filter {
  appearance: none;
  padding: 2px 0;
  border: 0;
  background: none;
  color: var(--ink-3);
  font-size: 13.5px;
  letter-spacing: 0.02em;
  cursor: pointer;
  position: relative;
  transition: color 0.18s;
}
.filter:hover { color: var(--ink-2); }
.filter[aria-selected="true"] { color: var(--ink); }
.filter[aria-selected="true"]::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -17px;
  height: 1px;
  background: var(--ink);
}

.filter-note {
  margin: 16px 0 0;
  font-size: 12.5px;
  color: var(--ink-3);
  font-variant-numeric: tabular-nums;
}

/* ---------- 时间轴 ---------- */
.axis {
  list-style: none;
  margin: 0;
  padding: 26px 0 0;
  position: relative;
}
.axis::before {
  content: "";
  position: absolute;
  left: calc(var(--axis-x) - 0.5px);
  top: 34px;
  bottom: 10px;
  width: 1px;
  background: linear-gradient(180deg, transparent, var(--line-2) 6%, var(--line-2) 94%, transparent);
}

.item {
  display: grid;
  grid-template-columns: 92px 20px minmax(0, 1fr);
  gap: 0 16px;
  padding-bottom: 16px;
  position: relative;
}

.item time {
  grid-column: 1;
  padding-top: 21px;
  text-align: right;
  font-size: 12.5px;
  color: var(--ink-3);
  font-variant-numeric: tabular-nums;
  line-height: 1.5;
  letter-spacing: 0.02em;
}
.item time .d { display: block; color: var(--ink-2); }
.item time .h { display: block; }

.item .dot { grid-column: 2; position: relative; }
.item .dot::before {
  content: "";
  position: absolute;
  left: 50%;
  top: 26px;
  width: 7px;
  height: 7px;
  margin-left: -3.5px;
  border-radius: 50%;
  background: var(--paper);
  border: 1.5px solid var(--line-2);
  transition: border-color 0.2s, background-color 0.2s;
}
.item:hover .dot::before { border-color: var(--ink-3); }

.card {
  grid-column: 3;
  display: block;
  width: 100%;
  padding: 20px 24px 22px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--surface);
  color: inherit;
  text-align: left;
  cursor: pointer;
  transition: border-color 0.2s, box-shadow 0.24s, transform 0.24s;
}
.card:hover {
  border-color: var(--line-2);
  box-shadow: var(--card-shadow);
  transform: translateY(-1px);
}
.card:focus-visible { outline: 1.5px solid var(--ink-2); outline-offset: 2px; }

.card h2 {
  margin: 0 0 9px;
  font-size: 18px;
  font-weight: 500;
  line-height: 1.5;
  letter-spacing: 0.005em;
}
.card p {
  margin: 0;
  font-size: 14.5px;
  line-height: 1.85;
  color: var(--ink-2);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* 挂在视频下的解析 */
.item[data-child="1"] .dot::before { width: 5px; height: 5px; margin-left: -2.5px; top: 27px; }
.item[data-child="1"] .card {
  margin-left: 26px;
  width: calc(100% - 26px);
  padding: 16px 20px 18px;
  background: var(--surface-2);
}
.item[data-child="1"] .card h2 { font-size: 16px; margin-bottom: 7px; }
.item[data-child="1"] .card p { font-size: 13.8px; -webkit-line-clamp: 2; }
.item[data-child="1"] time { opacity: 0.75; }

.empty {
  padding: 80px 0;
  text-align: center;
  color: var(--ink-3);
  font-size: 14px;
}

/* ---------- 页脚 ---------- */
.foot {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  width: min(920px, calc(100% - clamp(32px, 8vw, 80px)));
  margin: 0 auto;
  padding: 24px 0 40px;
  border-top: 1px solid var(--line);
  color: var(--ink-3);
  font-size: 12px;
  letter-spacing: 0.04em;
}

/* ---------- 阅读面板 ---------- */
.reader {
  position: fixed;
  inset: 0;
  z-index: 60;
  display: flex;
  justify-content: flex-end;
}
.reader[hidden] { display: none; }

.reader-scrim {
  position: absolute;
  inset: 0;
  background: var(--scrim);
  backdrop-filter: blur(3px);
  opacity: 0;
  transition: opacity 0.26s ease;
}

.reader-panel {
  position: relative;
  display: flex;
  flex-direction: column;
  width: min(760px, 100%);
  height: 100%;
  background: var(--paper);
  box-shadow: var(--panel-shadow);
  transform: translateX(26px);
  opacity: 0;
  transition: transform 0.3s cubic-bezier(0.22, 1, 0.36, 1), opacity 0.2s ease;
}
.reader.is-open .reader-scrim { opacity: 1; }
.reader.is-open .reader-panel { transform: none; opacity: 1; }

.reader-head {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px clamp(20px, 5vw, 56px);
  border-bottom: 1px solid var(--line);
  background: var(--paper);
}
.reader-close {
  appearance: none;
  border: 0;
  background: none;
  padding: 0;
  color: var(--ink-2);
  font-size: 13.5px;
  letter-spacing: 0.06em;
  cursor: pointer;
  transition: color 0.18s;
}
.reader-close::before { content: "← "; }
.reader-close:hover { color: var(--ink); }

.reader-crumb {
  margin-left: auto;
  font-size: 12px;
  color: var(--ink-3);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.04em;
}

.reader-body {
  flex: 1;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: clamp(28px, 5vw, 48px) clamp(20px, 5vw, 56px) 72px;
}

.reader-body h1 {
  margin: 6px 0 22px;
  font-size: clamp(24px, 3.4vw, 30px);
  font-weight: 500;
  line-height: 1.42;
  letter-spacing: 0.005em;
}

.reader-text {
  margin: 0;
  font-size: 16px;
  line-height: 1.95;
  color: var(--ink-2);
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.reader-media { margin: 30px 0 0; }
.reader-media img {
  display: block;
  width: 100%;
  height: auto;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--img-bg);
  cursor: zoom-in;
}
.reader-media figcaption {
  margin-top: 9px;
  font-size: 12.5px;
  line-height: 1.6;
  color: var(--ink-3);
}

.reader-facts {
  margin: 34px 0 0;
  padding-top: 18px;
  border-top: 1px solid var(--line);
  display: grid;
  gap: 8px;
  font-size: 13px;
  color: var(--ink-2);
}
.reader-facts div { display: flex; gap: 12px; }
.reader-facts dt { flex: 0 0 76px; color: var(--ink-3); font-size: 12.5px; }
.reader-facts dd { margin: 0; font-variant-numeric: tabular-nums; }

.reader-source {
  display: inline-block;
  margin-top: 26px;
  font-size: 13.5px;
  color: var(--ink);
  border-bottom: 1px solid var(--line-2);
  padding-bottom: 1px;
}
.reader-source:hover { border-bottom-color: var(--ink); }

.reader-foot {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 14px clamp(20px, 5vw, 56px);
  border-top: 1px solid var(--line);
  background: var(--paper);
}
.reader-nav {
  appearance: none;
  border: 0;
  background: none;
  padding: 4px 0;
  color: var(--ink-3);
  font-size: 13px;
  cursor: pointer;
  transition: color 0.18s;
}
.reader-nav:hover { color: var(--ink); }
.reader-nav[disabled] { opacity: 0.35; cursor: default; }

/* 灯箱 */
.zoom {
  position: fixed;
  inset: 0;
  z-index: 90;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 4vh 4vw;
  background: rgba(0, 0, 0, 0.92);
  cursor: zoom-out;
}
.zoom[hidden] { display: none; }
.zoom img {
  max-width: 100%;
  max-height: 92vh;
  border-radius: 6px;
  box-shadow: 0 30px 80px -40px rgba(0, 0, 0, 0.9);
}

/* ---------- 账号 ---------- */
.account { display: flex; align-items: center; gap: 12px; }

.auth-btn {
  appearance: none;
  border: 0;
  background: none;
  padding: 2px 0;
  color: var(--ink-2);
  font-size: 13px;
  letter-spacing: 0.04em;
  cursor: pointer;
  border-bottom: 1px solid transparent;
  transition: color 0.18s, border-color 0.18s;
}
.auth-btn:hover { color: var(--ink); border-bottom-color: var(--line-2); }

.account-email {
  font-size: 12.5px;
  color: var(--ink-3);
  max-width: 150px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ---------- 登录 / 注册模态 ---------- */
body.is-modal { overflow: hidden; }

.modal {
  position: fixed;
  inset: 0;
  z-index: 80;
  display: grid;
  place-items: center;
  padding: 20px;
}
.modal[hidden] { display: none; }

.modal-scrim {
  position: absolute;
  inset: 0;
  background: var(--scrim);
  backdrop-filter: blur(3px);
  opacity: 0;
  transition: opacity 0.2s ease;
}
.modal.is-open .modal-scrim { opacity: 1; }

.modal-card {
  position: relative;
  width: min(400px, 100%);
  display: grid;
  gap: 15px;
  padding: 24px 24px 20px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--surface);
  box-shadow: 0 30px 70px -50px rgba(0, 0, 0, 0.7);
  opacity: 0;
  transform: translateY(6px);
  transition: opacity 0.2s ease, transform 0.24s cubic-bezier(0.22, 1, 0.36, 1);
}
.modal.is-open .modal-card { opacity: 1; transform: none; }

.modal-head { display: flex; align-items: baseline; justify-content: space-between; gap: 12px; }
.modal-head h2 { margin: 0; font-size: 19px; font-weight: 500; letter-spacing: 0.02em; }
.modal-close {
  appearance: none;
  border: 0;
  background: none;
  padding: 0;
  color: var(--ink-3);
  font-size: 12.5px;
  cursor: pointer;
}
.modal-close:hover { color: var(--ink); }

.field { display: grid; gap: 6px; }
.field label { font-size: 11.5px; color: var(--ink-3); letter-spacing: 0.12em; }
.field input {
  width: 100%;
  padding: 9px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 14px;
  outline: none;
  transition: border-color 0.18s;
}
.field input:focus { border-color: var(--ink-3); }

.code-row { display: flex; gap: 8px; }
.code-row input { flex: 1; min-width: 0; }

.ghost-btn {
  appearance: none;
  border: 1px solid var(--line);
  background: transparent;
  border-radius: 8px;
  padding: 0 12px;
  color: var(--ink-2);
  font-family: var(--sans);
  font-size: 12.5px;
  white-space: nowrap;
  cursor: pointer;
  transition: border-color 0.18s, color 0.18s;
}
.ghost-btn:hover { border-color: var(--line-2); color: var(--ink); }
.ghost-btn:disabled { opacity: 0.45; cursor: default; }

.primary-btn {
  appearance: none;
  border: 0;
  border-radius: 8px;
  padding: 11px 14px;
  background: var(--ink);
  color: var(--paper);
  font-family: var(--sans);
  font-size: 14px;
  letter-spacing: 0.03em;
  cursor: pointer;
  transition: opacity 0.18s;
}
.primary-btn:hover { opacity: 0.88; }
.primary-btn:disabled { opacity: 0.5; cursor: default; }
.primary-btn.small { padding: 8px 16px; font-size: 13px; }

.auth-hint { margin: 0; font-size: 12.5px; line-height: 1.6; color: #a33a2a; }
.auth-hint[data-kind="info"] { color: var(--ink-3); }
.auth-hint[hidden] { display: none; }

.auth-switch {
  margin: 0;
  display: flex;
  justify-content: center;
  gap: 6px;
  font-size: 12.5px;
  color: var(--ink-3);
}
.link-btn {
  appearance: none;
  border: 0;
  background: none;
  padding: 0;
  color: var(--ink);
  font-family: var(--sans);
  font-size: 12.5px;
  text-decoration: underline;
  text-underline-offset: 3px;
  cursor: pointer;
}

/* ---------- 评论 ---------- */
.comments {
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}
.comments-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 6px;
}
.comments-head h2 { margin: 0; font-size: 13.5px; font-weight: 500; letter-spacing: 0.08em; }
.comments-count { font-size: 12px; color: var(--ink-3); }

.comment-list { display: grid; }
.comment {
  padding: 14px 0;
  border-bottom: 1px solid var(--line);
  display: grid;
  gap: 5px;
}
.comment-meta {
  display: flex;
  align-items: baseline;
  gap: 10px;
  font-size: 11.5px;
  color: var(--ink-3);
  font-variant-numeric: tabular-nums;
}
.comment-author { color: var(--ink-2); letter-spacing: 0.02em; }
.comment-del {
  appearance: none;
  margin-left: auto;
  border: 0;
  background: none;
  padding: 0;
  color: var(--ink-3);
  font-size: 11.5px;
  cursor: pointer;
}
.comment-del:hover { color: var(--ink); }
.comment-del:disabled { opacity: 0.4; cursor: default; }

.comment-body {
  margin: 0;
  font-size: 14px;
  line-height: 1.85;
  color: var(--ink-2);
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}
.comment-empty { margin: 14px 0 4px; font-size: 13px; color: var(--ink-3); }

.comment-form { display: grid; gap: 10px; margin-top: 16px; }
.comment-form textarea {
  width: 100%;
  min-height: 76px;
  resize: vertical;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 13.5px;
  line-height: 1.75;
  outline: none;
  transition: border-color 0.18s;
}
.comment-form textarea:focus { border-color: var(--ink-3); }
.comment-actions { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.comment-tip { font-size: 11.5px; color: var(--ink-3); }
.comment-tip[data-kind="error"] { color: #a33a2a; }

.comment-login-tip {
  margin: 18px 0 0;
  font-size: 13px;
  color: var(--ink-3);
  display: flex;
  gap: 8px;
  align-items: baseline;
}

/* ---------- 响应式 ---------- */
@media (max-width: 760px) {
  :root { --axis-x: 20px; }
  .head { padding: 14px 20px; }
  .brand-sub { display: none; }
  .lede-count span { font-size: 64px; }
  .lede-stats { gap: 18px 28px; }

  .axis::before { left: calc(var(--axis-x) - 0.5px); }
  .item {
    grid-template-columns: 0 16px minmax(0, 1fr);
    gap: 0 12px;
    padding-bottom: 14px;
  }
  .item time {
    grid-column: 3;
    grid-row: 1;
    padding: 0 0 8px;
    display: flex;
    gap: 8px;
    text-align: left;
  }
  .item time .d, .item time .h { display: inline; }
  .item .dot { grid-column: 2; grid-row: 1 / span 2; }
  .item .dot::before { top: 7px; }
  .item[data-child="1"] .dot::before { top: 7px; }
  .card { grid-column: 3; grid-row: 2; padding: 16px 18px 18px; border-radius: 12px; }
  .card h2 { font-size: 16.5px; }
  .item[data-child="1"] .card { margin-left: 14px; width: calc(100% - 14px); padding: 14px 16px 16px; }

  .reader-head, .reader-body, .reader-foot { padding-left: 20px; padding-right: 20px; }
  .reader-facts dt { flex-basis: 68px; }
}

@media (max-width: 520px) {
  .head-count, .account-email { display: none; }
  .head-tools { gap: 12px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.001ms !important; transition-duration: 0.001ms !important; }
  html { scroll-behavior: auto; }
}

.account-profile{display:inline-flex;align-items:center;gap:8px;color:var(--ink);text-decoration:none;font-size:13px;min-height:36px}.account-name{max-width:130px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.account-avatar{width:28px;height:28px;object-fit:cover;border-radius:50%;flex-shrink:0}.account-inbox{font-size:12px;white-space:nowrap}.forum-entry{display:inline-flex;align-items:center;gap:14px;padding:10px 18px;background:var(--ink);color:var(--paper);border-radius:6px;text-decoration:none;font-size:14px;font-weight:650;white-space:nowrap}.forum-entry:hover{opacity:.85}.archive-tabs .archive-forum-link{margin-left:auto;display:inline-flex;align-items:center;gap:10px;font-weight:650;font-size:14px;color:var(--ink);text-decoration:none;padding:12px 16px;border:1px solid var(--line-2);border-radius:6px;align-self:center;margin-bottom:8px}@media(max-width:600px){.account-name{max-width:76px}.forum-entry{padding:8px 12px}.archive-tabs{flex-wrap:wrap}.archive-tabs .archive-forum-link{margin-left:0}}
@media(max-width:800px){.head{flex-wrap:wrap}.head-tools{flex-wrap:wrap;flex:1;justify-content:flex-end}.account{flex-wrap:wrap}}